WO2006030923A1 - 調圧装置 - Google Patents
調圧装置 Download PDFInfo
- Publication number
- WO2006030923A1 WO2006030923A1 PCT/JP2005/017207 JP2005017207W WO2006030923A1 WO 2006030923 A1 WO2006030923 A1 WO 2006030923A1 JP 2005017207 W JP2005017207 W JP 2005017207W WO 2006030923 A1 WO2006030923 A1 WO 2006030923A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- valve
- pressure regulating
- fluid
- diaphragm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/02—Liquid fuel
- F23K5/14—Details thereof
- F23K5/16—Safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
- G05D16/0663—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using a spring-loaded membrane with a spring-loaded slideable obturator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0119—Shape cylindrical with flat end-piece
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
- F17C2205/0335—Check-valves or non-return valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0338—Pressure regulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0341—Filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/23—Manufacturing of particular parts or at special locations
- F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/0626—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/036—Avoiding leaks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/07—Applications for household use
- F17C2270/0718—Aerosols
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7758—Pilot or servo controlled
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87917—Flow path with serial valves and/or closures
- Y10T137/87925—Separable flow path section, valve or closure in each
- Y10T137/87941—Each valve and/or closure operated by coupling motion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87917—Flow path with serial valves and/or closures
- Y10T137/88054—Direct response normally closed valve limits direction of flow
Definitions
- the present invention is equipped with a pressure adjusting mechanism that obtains a constant two-fire pressure, and supplies a pressurized fluid.
- the present invention relates to a pressure regulating device including a connector to which a supply connector can be connected.
- pressure regulators also called pressure regulators or governors
- pressure regulators detect the secondary pressure with a diaphragm and have a regulating valve that moves in conjunction with the displacement of the diaphragm, and operates the regulating valve so that the secondary pressure remains constant even if the primary pressure fluctuates. In this structure, a predetermined secondary pressure is obtained.
- valve mechanism on the connector side When a connector is connected to this connector, the valve mechanism on the connector side is opened according to the connection operation to operate to supply pressure fluid. If the diaphragm of the pressure adjustment mechanism receives a displacement force in connection with the connection operation, the pressure adjustment function may be impaired and fluid with a pressure higher than the set pressure may be supplied.
- the present invention is a pressure regulating device including a pressure regulating mechanism and a connector, and ensures a good pressure regulating function so that the pressure regulating function is not affected by the connection operation of the connection tool. It is an object of the present invention to provide a pressure regulating device that prevents a back flow of fluid associated with an attachment / detachment operation of a tool. Disclosure of the invention
- the pressure regulating device of the present invention is a pressure regulating device comprising a main body portion incorporating a pressure regulating mechanism, and a connector that is installed in the main body portion and connected to a supply connector for supplying force tl pressure fluid.
- the connector is provided with a linkage member that opens and operates the valve mechanism of the supply connector according to the connection operation of the supply connector, and the pressure adjusting mechanism operates according to the displacement of the diaphragm and receives the introduced pressure fluid.
- An adjustment valve for adjusting the pressure to a predetermined secondary pressure is provided, and the linking member and the adjustment valve are separately formed.
- the valve mechanism has a stem valve of a shaft of the valve mechanism at a substantially center, and the linkage member is constituted by a linkage protrusion extending in a connection operation direction, and the connector and At the time of connection with the supply connector, the distal end portion of the linkage protrusion may contact the stem valve to open the valve.
- the pressure adjusting mechanism has a substantially cylindrical introduction member, and the introduction member has a partition wall portion protruding inward at a predetermined position in the connection operation direction, It is preferable that the partition wall portion has the link protrusion at substantially the center, and the link protrusion has a communication hole that penetrates the partition wall portion on both sides, and the supply connector of the partition wall portion is connected to the partition wall portion. It is more preferable that a disk-shaped dust removal filter that passes through the connection protrusion and closes the communication hole is fixed to the side surface.
- the pressure adjusting mechanism has a substantially cylindrical introduction member, and the introduction member has a partition wall portion protruding inward at a predetermined position in the connection operation direction, and the partition wall portion Has an opening through which the linkage protrusion penetrates at a substantially center, and a substantially cylindrical joint for accommodating a plug having the linkage protrusion on the side opposite to the side to which the supply connector is connected.
- the joint further includes a dust removing filter that covers the end portion at an end portion opposite to a side to which the supply connection tool is connected.
- the introduction member has an inner peripheral surface surrounding the linkage protrusion on the supply connector side. It is preferable to have a taper that increases the opening diameter as it goes.
- the pressure regulating device of the present invention can further include two backflow prevention valves for preventing the backflow of fluid on the inside and outside of the regulating valve of the pressure regulating mechanism.
- Another pressure regulating device of the present invention is a pressure regulating device provided with a main body portion incorporating a pressure regulating mechanism, and a connector installed in the main body portion and connected to a supply connector for feeding pressurized fluid.
- the pressure adjusting mechanism operates in accordance with the displacement of the diaphragm and adjusts the introduced pressure fluid to a predetermined secondary pressure, and prevents back flow of the fluid inside and outside the adjusting valve. It has two backflow prevention valves.
- the two backflow prevention valves are installed on the inner side of the regulating valve, and are installed on the outer side of the regulating valve, the first backflow prevention valve on the low-pressure operation side that is closed when the diaphragm is displaced, and from the inside It is preferable to use a second backflow prevention valve that closes in response to the jetting pressure.
- the second backflow prevention valve is preferably constituted by an elastic plate that closes the opening of the passage.
- the elastic plate preferably has a foam inside and a non-permeable skin on the surface.
- the diaphragm includes the outer peripheral portion of the diaphragm, the first surface on the connector side, and both sides of the second surface on the opposite side, together with the first surface.
- the main body case is provided with at least one passage groove through which the stored pressure fluid passes on a surface facing the pressure regulating chamber, and the pressure regulating chamber has the predetermined secondary pressure.
- the outlet has an outlet for discharging the pressure fluid adjusted to the pressure, and the passage groove is provided at a position opposite to the outlet with the central axis in the direction of the connection operation interposed therebetween.
- the pressure regulating device of the present invention is adjusted according to the connection operation of the supply connector.
- the connector linking member that opens the valve mechanism of the valve and the adjustment valve of the adjustment mechanism that adjusts the introduced pressure fluid to the predetermined secondary pressure by operating according to the displacement of the diaphragm are separated.
- the adjustment valve, diaphragm, etc. do not move, maintain a good pressure regulation function, and improve the operation reliability without discharging fluid with a secondary pressure higher than the set pressure Can do.
- the two backflow prevention valves for preventing the backflow of the fluid are provided inside and outside the regulating valve of the pressure regulating mechanism, the pressure inside the pressure regulating mechanism is reduced. Even at high pressures, it is possible to prevent leakage due to fluid backflow quickly and reliably.
- FIG. 1 is an overall cross-sectional view showing a separated state of the connector of the pressure regulating device according to the first embodiment of the present invention.
- FIG. 2 is an enlarged cross-sectional view of a main part of the connector structure of FIG.
- FIG. 3 is a perspective view of a pressure vessel provided with a supply connector.
- Fig. 4 is an exploded perspective view of the main components of the rigid mechanism.
- FIG. 5 is a cross-sectional view showing a maximum pushing state in the connecting operation of the supply connector.
- FIG. 6 is a cross-sectional view showing a locked state in which the supply connector and the connector are connected.
- FIG. 7 is a cross-sectional perspective view showing the relationship between the supply connector and the actuating member in the mouth hook released state.
- FIG. 8 is a perspective view of the same cross-section in FIG.
- FIG. 9 is an exploded perspective view of the pressure adjusting mechanism.
- FIG. 10 is a cross-sectional view of an essential part showing another embodiment of the second check valve.
- FIG. 11 is a cross-sectional view of the main part showing the pressure fluid introduction state in the example of FIG.
- FIG. 12 shows a pressure regulating mechanism according to a second embodiment of the present invention, cut in a range of about 90 ° along a circumference around an axis passing through the center and partially disassembled. portion It is a cross-sectional exploded perspective view.
- FIG. 13 is a partially enlarged cross-sectional view showing the upper part of the pressure regulating mechanism of FIG. Fig. 14 shows the lower part of the pressure regulating mechanism shown in Fig. 12 that has been twisted, and is cut in a range of about 90 ° along the circumference of the axis passing through the center and partially enlarged.
- FIG. 13 is a partially enlarged cross-sectional view showing the upper part of the pressure regulating mechanism of FIG. Fig. 14 shows the lower part of the pressure regulating mechanism shown in Fig. 12 that has been twisted, and is cut in a range of about 90 ° along the circumference of the axis passing through the center and partially enlarged.
- FIG. 13 is a partially enlarged cross-sectional view showing the upper part of the pressure regulating mechanism of FIG. Fig. 14 shows the lower part of the pressure regulating mechanism shown in Fig. 12 that has been twisted, and is cut in a range of about 90 ° along the circumference of the axis passing through the center and partially enlarged.
- Fig. 15 is a cross-sectional view showing the maximum pushing state in the connecting operation of the supply connector.
- FIG. 1 is an overall cross-sectional view showing a separated state of a connector of a pressure regulating device according to one embodiment
- FIG. 2 is an enlarged cross-sectional view of a main part of FIG. 1
- FIG. 3 is a view of a pressure vessel equipped with a supply connector.
- Fig. 4 is an exploded perspective view of the main components of the connector securing mechanism
- Fig. 5 is a cross-sectional view showing the maximum push-in state in the connector connecting operation
- Fig. 6 is a cross-sectional view showing the locked state of the connector
- Fig. 7 is FIG. 8 is a cross-sectional perspective view showing the connector in a state where the connector has a loose mouth angle
- FIG. 8 is a cross-sectional perspective view showing the connector in a state where the connector has a loose mouth angle
- FIG. 8 is a perspective view of the same cross-sectional view shifted from the state shown in FIG. 7, and FIG. 9 is an exploded perspective view of the pressure adjusting mechanism.
- the top, bottom, left, and right are described according to the orientation of the drawing. However, the actual installation direction is the vertical orientation in which the direction in which the center line in FIG. 1 extends is the top and bottom direction (the top and bottom may be reversed). In addition to the arrangement, there may be a horizontal arrangement in which the center spring is horizontal.
- FIG. 2 includes a main body portion 1 1 having a pressure adjusting mechanism 5 (a governor mechanism) that adjusts a supply pressure fluid to a constant secondary pressure.
- a connector 2 installed in 1 is detachably connected to a supply connector 3 installed in a pressure container 12 such as a fuel cartridge that supplies fluid in a state of high pressure.
- the main body 11 is installed in a fuel cell or the like using a fluid such as liquid fuel, and when supplying the fluid F from the pressure vessel 12 to the main body 11, the securing mechanism 4 ( Ratchet mechanism) to connect the supply connector 3 to the locked state.
- the supply connector 3 is provided with a valve mechanism 6 having a stem valve 61 biased in a valve closing direction by a spring 62 at a plug-like supply connection port 31.
- the distal end portion of the supply connector 3 is inserted and connected to the inside of the connector 2, and the stem valve 61 of the supply connector 3 is inserted and moved in response to the connection operation of the supply connector 3.
- the pressure regulating mechanism 5 of the main body 11 is operated according to the supply of the pressure fluid, and the fluid regulated to a constant secondary pressure is discharged from the pressure regulating device 1.
- the second ring 4 4 in the lashing mechanism 4 moves with the push-in operation for connecting the supply connector 3, and engages with a part of the supply connector 3 to connect the connector 2.
- the second ring 4 4 is further moved by the next push-in operation of the supply connector 3 to release the mouth-plugging state, and the connector 2 is released by the release spring 4 7.
- supply connector 3 are forcibly separated from each other.
- the pressure regulating mechanism 5 in the main body 11 of the pressure regulating device 1 is sandwiched between the cover case 51 and the body case 53.
- the primary pressure is changed to the secondary pressure in conjunction with the diaphragm 5 2, the introduction member 5 4 connected to the main body case 5 3, and the fluid (liquid or gas) of the primary pressure is introduced, and the diaphragm 5 2.
- the first backflow prevention valve 56 also functions as a regulating valve.
- the regulating valve 55 and the first backflow prevention valve 56 are interlocked to correspond to the displacement of the diaphragm 52, and regulate the primary pressure to the secondary pressure by opening and closing operations opposite to each other.
- the pressure regulation characteristics for the 17 fire pressure change are the reverse characteristics of the regulating valve 55 and the first backflow prevention valve 56.
- the diaphragm 52 has a pressure loss due to the primary pressure acting on the projected area of the regulating valve 55 and a pressure loss due to the secondary pressure acting on the projected area of the first backflow prevention valve 56. In the same direction, the primary pressure changes by the combination of the pressure regulation characteristics of both.
- the regulating valve 5 5 and the first backflow prevention valve 5 6 have their opening / closing operations reversed with respect to the displacement of the diaphragm 52, eliminating pressure fluctuations due to the mounting position error of both, and improving the production accuracy. Ease of manufacturing is achieved through relaxation.
- the securing mechanism 4 of the connector 2 is installed on the outer peripheral portion of the introduction member 5 4 of the pressure regulating mechanism 5, and the securing mechanism 4 is a holder fixed to the main body case 53 as shown in FIG. Main body 4 1 and ratchet holder 4 2, first to third rings 4 3, 4 4, 4 5 disposed in the ratchet holder 4 2, and an axially slidable spring horereader 4 6 and a square spring 4 7.
- the second ring 44 rotates by one frame, engages the supply connector 3, and the next supply connector 3 pushes in.
- the second ring 44 is further rotated by one frame, releasing the engagement lock, and forcibly separating the supply connector 3 by the urging force of the release spring 47.
- the one-frame feed is performed by applying a force in the direction of rotation by pressing the inclined surface between the rings.
- the supply connector 3 installed at the head of the pressure vessel 1 2 has a connection port 3 1 incorporating a valve mechanism 6 in the center of the connection body 30, and the outer periphery of the connection port 3 1 in the axial direction. And has a connecting tube portion 32 projecting from the bottom. Then, as shown in FIG. 3, a locking engagement protrusion 3 2 1 is provided on the outer periphery of the tip of the connection tube portion 3 2 at regular intervals, and the opening protrusion 4 4 4 of the second ring 4 4 and Engageable. In Figs. 1 and 2, the connecting cylinder part 3 2 has a different cross-sectional position on the left and right.
- a pressing step part 3 2 2 that protrudes in an annular shape on the outside.
- the inner peripheral protrusion 4 3 of the first ring 4 3 according to the connection movement Contact 3 and move in the axial direction. Further, it has a spline shaft-like convex portion 3 2 3 protruding from the pressing step portion 3 2 2 toward the engaging projection 3 2 1, and the second ring 4 4 is between the engaging projection 3 2 1.
- a rotating annular space is formed and the connector 2 Rotation is prevented by engaging with the vertical groove 4 2 6 in the lower inner periphery of the holder 42.
- connection port 3 1 is formed in a pipe shape, and a seal member 33 by an O-ring is attached to the outer periphery of the tip, and a nut 3 5 is fastened to a lower end 3 1 1 that penetrates the connection body 30.
- the stem valve 6 1 of the valve mechanism 6 is slidably disposed at the intermediate step 3 1 2 on the inner periphery.
- a valve body 63 by an O-ring is attached to the lower end of the stem valve 61 protruding from the intermediate step 3 1 2.
- the stem valve 61 can be contacted with the tip of the connecting projection 5 4 4 (linking member) of the introduction member 5 4 in the recess of the head, and the spring between the back portion of the head and the intermediate step 3 1 2 6 2 (Return spring) is retracted and biased in the valve closing direction.
- the ratchet holder 42 shown at the lower end of FIG. 4 is formed in a cylindrical shape, and the upper end portion of the cylindrical portion 4 20 is fixed to the holder main body 41 shown at the upper end of FIG.
- first guide grooves 4 2 1 On the inner surface of the cylindrical portion 4 20 of this ratchet holder 4 2, there are four first guide grooves 4 2 1 in the circumferential direction extending in the axial direction from one end to a substantially intermediate position, and the first guide grooves 4 2 1 L-shaped engagement groove 4 2 2 that penetrates inward and outward from the upper end surface, and a plurality of (1 2 pieces) ratchet convex portions 4 2 3 arranged at equal intervals on the inner periphery on the lower end side, and this axial direction
- the ratchet protrusions 4 2 3 are provided with a plurality of (1 2) second guide grooves 4 2 4 at equal intervals by the inner peripheral surface between the protrusions 4 2 3 and the upper end of the ratchet protrusions 4 2 3 with an inclined surface
- a locking step portion is provided, and the inclined surface is similarly formed from the upper end of the locking step portion toward the second guide groove 4 24.
- the first ring 4 3 (slide ring) has a plurality of guide projections 4 3 2 at equal intervals on the outer circumference of the ring-shaped base 4 3 1, and the inner circumference at the same position as the guide projection 4 3 2 on the inner circumference Protrusions 4 3 3 are provided, and the upper and lower end surfaces are formed flat.
- the outer guide protrusion 4 3 2 is always inserted into the second guide groove 4 2 4 of the ratchet holder 4 2, and the first ring 4 3 cannot rotate and can only move up and down.
- the upper end of the pressing step 3 2 2 of the connecting tube 3 2 of the supply connector 3 can be brought into contact when the ascending. Move up in the direction.
- the circumferential protrusion 4 3 The engaging projection 3 2 1 of the connecting tube portion 3 2 can be passed through the vertical groove between the three.
- the second ring 4 4 (lock ring) has a plurality of 1 and 2 guide projections 4 4 2 projecting at equal intervals on the outer periphery of the ring-shaped base 4 4 1, and a plurality of 1 2 inclined surfaces at equal intervals on the upper surface.
- the slide claw portions 4 4 3 having a plurality of 1 and 2 locking projections 4 4 4 projecting at equal intervals on the inner circumference, respectively, are rotated in the rotational direction d.
- the outer peripheral guide protrusion 4 4 2 and the inner peripheral locking protrusion 4 4 4 are at the same position in the circumferential direction, and they are connected at the lower part of the ring-shaped base 4 4 1, and are high at the front in the rotational direction d and low at the rear. It is provided on the inclined surface.
- the upper surface of the slide claw portion 44 3 protruding to the upper surface is provided on an inclined surface that is high at the front in the rotational direction d and low at the rear.
- the outer guide protrusion 4 4 2 is inserted into the second guide groove 4 2 4 of the ratchet holder 4 2, and slides and guides the second ring 4 4 in the axial direction.
- This guide protrusion 4 4 2 is the second ring.
- the upward movement amount of 4 4 is large, it comes out of the second guide groove 4 2 4 and the second ring 4 4 can rotate.
- the lower end inclined surface of the guide protrusion 4 4 2 is lowered by the rotation in a state where it can contact the inclined surface of the ratchet convex portion 4 2 3 or the upper end inclined surface of the locking step portion, the contact between the inclined surfaces is caused.
- the third ring 4 5 (guide ring) has four guide projections 4 5 2 at equal intervals on the outer periphery of the ring-shaped base 4 5 1, and claw teeth 4 5 3 having a ratchet claw-like slope on the lower end surface, respectively.
- the guide protrusion 4 5 2 is inserted into the first guide groove 4 2 1 of the ratchet holder 4 2, and the third ring 4 5 is movable up and down in the axial direction (non-rotatable).
- 1 Guide groove 4 2 1 Guide protrusion 4 5 2 engages and is regulated at the lower end of 1 and is separated from second ring 4 4.
- the claw teeth 4 5 3 on the lower end face abut the slide claw 4 4 3 on the upper surface of the second ring 4 4, and the second ring 4 10 17207
- the spring holder 4 6 is composed of a cylindrical upper tube portion 4 6 1 and a lower tube portion 4 6 2 having a smaller ⁇ W ⁇ , and a release spring 4 7 is retracted inside the upper tube portion 4 6 1
- the outer peripheral step 4 6 3 of the lower end of the second ring 4 abuts against the locking projection 4 4 4 of the second ring 4 4 from above and biases it. This prevents looseness when the second ring 4 4 separated from the third ring 45 is separated.
- the lower cylindrical portion 4 62 of the spring holder 4 6 is inserted inward of the first to third rings 4 3 to 4 5 and extends downward into the ratchet holder 4 2 to release spring 4 7.
- An opening is formed at the center of the bottom surface to receive the connection, and the connection port 31 of the supply connector 3 is inserted into the opening. Further, the lower end portion of the lower cylindrical portion 46 2 can be brought into contact with the inner end face 3 24 of the connecting portion main body 30 of the supply connector 3, and the spring holder 46 is released by the connection operation of the supply connector 3. It can move upward in the axial direction against the spring 47.
- the release spring 4 7 is a coil spring that is contracted between the lower surface of the flange portion of the body case 5 3 of the connector 2, pushes down the third ring 4 5 via the spring holder 4 6, and supplies the connection connector 3 Energize in the direction of separation and separation.
- the holder main body 41 is fixed to the main body case 53 together with the fixing of the diaphragm 52 of the connector 2.
- the lower ring body 4 1 1 has a plurality of fixed parts 4 1 2 that extend upward at equal intervals and a vertical groove part 4 1 3 between the fixed parts 4 1 2 and fixed parts 4 1 2 1 4 is formed with a screw hole 4 1 5 for fixing, and further protrudes outward on the outer surface of each fixed part 4 1 2 below the flange 4 1 4. It has four pin-like projections 4 1 6 The pin-like protrusions 4 1 6 can be engaged with the L-shaped engagement grooves 4 2 2 of the ratchet holder 4 2 and assembled.
- the engagement between the holder main body 41 and the ratchet holder 4 2 is a force using the structure as described above.
- the present invention is not limited to this.
- the engagement of the ratchet holder 42 1st guide groove 4 2 1 Install the locking claw 4 1 6 ′ (see Fig. 15) that engages the oval hole on the outer peripheral surface of the holder body 4 1, and push it into the ratchet holder 4 2 without rotating the holder body 4 1.
- a method of fitting the locking claw into the elliptical hole in a non-removable manner may be used.
- Diaphragm 5 2 receives the secondary pressure of pressure regulating chamber 5 3 0 and can be elastically displaced according to the pressure difference from atmospheric chamber 5 1 0, and at the center is the atmospheric chamber 5 1 0 side Further, the supporter 5 2 1 is fixed to the pressure regulating chamber 5 3 0 and the shaft 5 2 2 is fixed thereto, and can be moved integrally in the axial direction in accordance with the displacement of the diaphragm 5 2.
- the shaft 5 2 2 includes a boss portion 5 2 3 fixed to the diaphragm 52 and positioned in the pressure regulating chamber 5 3 0, and a shaft portion 5 2 4 extending in the axial direction from the tip of the boss portion 5 2 3.
- the shaft portion 5 2 4 has a circumferential groove portion 5 2 5 at its tip, and an O-ring adjusting valve 5 5 is attached to the circumferential groove portion 5 2 5.
- the first backflow prevention valve 5 6 is attached to the end face of the boss part 5 2 3 by a ⁇ ring (elastic body).
- the bolt at the center of the flange portion that is in close contact with the diaphragm 52 passes through the center of the diaphragm 52, and is fastened to the shaft 5 2 2 on the opposite side.
- one end of the pressure adjusting spring 5 1 3 installed inside the cylindrical part 5 1 1 of the cover case 5 1 is in contact with the saboter 5 2 1, and the pressure adjusting spring 5 1 3
- the other end of the abutment abuts on a pressure adjusting screw 5 1 2 (adjuster) screwed to the cylindrical portion 5 1 1 so that the position can be adjusted, and according to the adjustment of the axial position of the pressure adjusting screw 5 1 2,
- the biasing force of the diaphragm 5 2 by the pressure adjusting spring 5 1 3 is adjusted.
- the introduction member 5 4 at the lower end portion is a linkage as an linking member that projects downward from the outer circumferential cylindrical part 5 4 1, an intermediate partition part 5 4 2, and the partition part 5 4 2 and operates the stem valve 61
- a second backflow prevention valve 5 for high-pressure closing by an elastic plate such as a rubber plate or a sandwich plate can be used to close the opening of the communication hole 5 4 3. 7 is arranged. That is, the pressure regulating chamber 5 3 in the secondary pressure is relatively high state of 0, when the supply connector 3 is separated, the second check valve 5 7 closes the communicating hole 5 4 3 by the secondary pressure Function as a check valve to prevent fluid from leaking outside.
- the introduction member 5 4 has an upper end portion of the cylindrical portion 5 4 1 detachably coupled to the outer periphery of the distal end cylindrical portion of the main body case 5 3 through an O-ring 5 3 2, and the other end portion side of the supply connector 3.
- the sealing member 33 on the outer periphery of the front end of the connection port 31 is fitted, and pressurized fluid is introduced.
- the main body case 5 3 has a partition wall 5 3 a through which the shaft portion 5 2 4 of the shaft 5 2 2 is slidably passed inside the tip tube portion, and the inside and outside of this partition wall 5 3 a are the regulating valve. 5 5 and first check valve 5 6 are opened and closed. The reverse opening / closing operation is performed so that the regulating valve 55 is opened with the forward movement of the shaft 5 24 and the first check valve 56 is opened with the backward movement.
- the first backflow prevention valve 56 is a closing valve that closes by the secondary pressure and closes the backflow of fluid when the supply connector 3 is separated while the pressure in the pressure regulating chamber 53 is low. Function.
- a discharge port 5 1 4 is provided at the side of the pressure control chamber 5 3 0 to discharge the regulated secondary pressure gas through the cylindrical member 5 3 1, and the pressure is adjusted at the discharge port 5 1 4. Pipes 5 1 5 that lead the fluid to the fuel cell are connected.
- the connecting protrusion 5 4 4 of the introduction member 5 4 described above is such that when the supply connector 3 is connected to the connector 2, the tip pushes the stem valve 61 to open the connection connector 3.
- This linking projection 5 4 4 is fixed to the partition wall 5 4 2 of the introduction member 5 4 and has a structure separated from the shaft portion 5 2 4 linked to the diaphragm 5 2. It is designed not to receive the force of displacement. In other words, the stem valve 6 1 can be linked and operated at the tip of the shaft 5 2 4, but in this case, the maximum push-in state continues. If the pushing force is maintained as described above, the pressure regulation function is impaired due to the displacement of the diaphragm 52, and there is a possibility that a fluid having a pressure higher than the set secondary pressure may be supplied. The diaphragm 5 2 and the linkage protrusion 5 4 4 are separated, so that the pressure regulation function can be secured and the supply of fluid with a pressure higher than the set secondary pressure is prevented.
- a filter 58 for removing foreign matters such as dust in the fluid to be fed is interposed on the lower surface of the partition wall portion 5 42 of the introduction member 54.
- This filter 58 has a disk shape with an inner hole 58 a, and the outer diameter is slightly larger than the outer diameter of the partition wall part 54 2, and the inner diameter is slightly larger than the diameter of the base part of the communication protrusion 54 4 4. It is formed in a small size, and is fixed so as not to fall by being inserted into the introduction member 54 from below.
- the material of the filter 58 is, for example, an L D P E (low density polyethylene) foam having a porosity of 85%, a cell average diameter of 3 ⁇ , and a thickness of 1 mm.
- L D P E low density polyethylene
- the material of the foam is at least one selected from the group consisting of polyethylene, polypropylene pyrene, polyoxymethylene, polyethylene terephthalate, polyethylene naphthalate, or polytalaronitrile.
- the pressure vessel 1 2 includes a vessel body 10 0 2 having a connection body 3 0 of the supply connector 3 installed on the head, and a storage chamber for accommodating the fluid F formed inside the vessel body 1 0 2.
- 1 0 3 and an air chamber 1 that is formed inside the container body 1 0 2 and communicates with the storage chamber 1 0 3 at the end and encloses the compressed gas G that generates stress for pushing out the fluid F 1 0 4 and the storage chamber 10 3 are movably arranged, and when the partition wall member 10 05 and the P wall member 10 0 5 are moved downward, the fluid F and the compressed gas G are partitioned.
- an elastic body 10 8 which is compressed between the bottom of the container body 10 2.
- the container body 10 2 is composed of an outer container 1 2 1, a lid body 1 2 2 that seals the bottom, and an eaves container 1 2 3 disposed in a double structure inside the outer container 1 2 1. It becomes.
- a notch 1 1 1 extending in the vertical direction is formed at the lower end of the inner container 1 2 3, and the inner part of the inner container 1 2 3 and the inner part of the outer container 1 2 1, that is, the storage chamber 1 0 3 and the air chamber Communication with 1 0 4 is possible.
- a through hole 1 2 3 a is opened at the center of the upper end of the inner container 1 2 3, and the fluid F in the storage chamber 1 0 3 is discharged and supplied according to the opening / closing operation of the stem valve 6 1 of the valve mechanism 6 Can be done.
- the partition member 10 5 slidably fitted into the inner container 1 2 3 is composed of a main body 1 5 1 and an elastic seal member 1 5 2 (O-ring), and the outer periphery of the seal member 1 5 2
- the inner wall of the cylindrical inner container 1 2 3 is in airtight contact with the fluid F in the storage chamber 10 3 in the upper space.
- This partition member 10 5 functions as a moving partition partitioning the fluid F stored in the storage chamber 10 3 and the compressed gas stored in the air chamber 10 4, and the front surface by the pressure of the compressed gas acting on the back surface.
- the stem valve 61 is opened, this fluid F is pushed out.
- the compressed gas G is injected into the storage chamber 10 0 3 through the stem valve 6 1 opened by pushing operation, and the partition member 1 0 5 is lowered, and the storage chamber 1 0 3 is further moved from the position shown in FIG.
- the elastic body 10 8 is pressed and deformed and further moved to the bottom of the storage chamber 10 3. In the lowest position, the upper end of the notch 1 1 1 is located above the seal member 1 5 2 of the partition wall member 1 0 5, and compressed gas flows from the storage chamber 1 0 3 to the air chamber 1 0 4 through the notch 1 1 1.
- the fluid F can be ejected by connecting the injection means to the supply connector 3 and injecting the fluid F through the stem valve 61 into the storage chamber 10 3 while lowering the P wall member 10 5. And the pressure vessel 12 is obtained.
- the pressure vessel 12 may contain compressed gas as a fluid. In that case, the inner vessel is not used and the gas is directly contained in the outer vessel. Further, in order to obtain an internal pressure (primary pressure) for ejecting the supply fluid, a so-called aerosol structure in which a propellant is mixed into the fluid may be used.
- connection port 31 of the supply connector 3 is inserted into the introduction member 5 4 of the connector 2 and the seal member 3 3 is contacted.
- the sealing state is ensured, the valve mechanism 6 of the supply connector 3 is opened to allow the fluid passage to communicate and supply can be performed, and the locking mechanism 4 can be plugged.
- the stem valve 6 1 of the valve mechanism 6 is opened by the tip of the linkage projection 5 4 4 and the fluid feed passage is communicated. Subsequently, the second ring 4 4 of the lashing mechanism 4 is rotated to be locked. On the other hand, when released (removed), the second ring 4 4 of the securing mechanism 4 is rotated to release the locked state, and then the stem valve 6 1 is closed to close the miscommunication. Finally, the seal member 33 is separated from the introduction member 54 to release the seal.
- the separation state before the connection is as follows.
- the step portion 4 6 3 of the spring holder 4 6 of the securing mechanism 4 abuts against and presses the locking projection 4 4 4 of the second ring 4 4, 1 4 3 and 2nd V 4 4 4 guide protrusions 4 3 2 and 4 4 2 are ratchet wheels
- the second ring 4 4 in the second guide groove 4 2 4 of the rudder 4 2 is not rotatable, and the third ring 45 is in a position where the lowered position is restricted.
- the first backflow prevention valve 56 of the pressure regulating mechanism 5 is closed, and the stem valve 61 of the supply connector 3 is also closed.
- the locking projection 3 2 1 of the connecting tube portion 3 2 passes through the longitudinal grooves of the first and second rings 4 3 and 4 4 as shown in FIG. Then, the lower end of the spring holder 46 is brought into contact with the inner end face 3 2 4 of the supply connector 3 and pushed up, and then the pressing step 3 2 2 is brought into contact with the lower surface of the first ring 4 3. Push this up. Along with this, the second ring 44 also rises, comes into contact with the lower surface of the third ring 45 stopped at the lower end of the first guide groove 4 21, and pushes up the third ring 45.
- the guide protrusion 4 4 2 of the second ring 4 4 can rotate out of the upper end of the second guide groove 4 2 4 of the ratchet holder 1 4 2, and the pawl teeth on the lower surface of the third ring 4 5 4 5
- the second ring 4 4 receives a force in the rotational direction d by contact with the inclined surface 3.
- Fig. 5 shows the state in which the supply connector 3 is pushed in to the maximum.
- the upper movement of the third ring 4 5 is restricted, and the second ring 4 4 is brought into contact with the third ring 4 5 by the inclined contact with the first ring 4 3 is rotated in the rotational direction d, and as shown in FIG. 8, when the second ring 44 is turned, the locking projection 4 4 4 is connected to the connecting tube 3 2 of the supply connector 3 for locking.
- the linkage protrusions 5 4 4 open the stem valve 61 to start the fluid supply.
- the supply connector 3 is urged backward by the urging force of the release spring 47.
- the engaging projection 3 2 1 engages with the hook projection 4 4 4 of the second ring 4 4 and moves downward, and the third ring 4 5 and the first ring 4 3 also move downward together.
- FIG. 6 is a cross-sectional view of the mouth-locked state, and the fluid adjusted to a predetermined pressure by the pressure-adjusting mechanism 5 is supplied to the main body 11 side from the discharge port 5 14.
- the pressure adjusting mechanism 5 reduces the primary pressure to a predetermined secondary pressure according to the movement of the diaphragm 52 by adjusting the pressure of the adjusting valve 55 and the first backflow prevention valve 56. This is to adjust and explain its effect.
- Fig. 6 shows the pressure regulation state.
- the fluid regulated by the regulating valve 55 and the first backflow prevention valve 56 flows into the regulating chamber 5 30 and is accurately reduced to the secondary pressure. And discharged from the outlet 5 1 4.
- Diaphragm 52 is maintained at a position where the biasing force due to the secondary pressure and atmospheric pressure and the biasing force due to pressure-regulating spring 51-3 are balanced. And if 27 fire pressure changes according to the fluctuation of the fluid discharge from the outlet 51 4, the fluctuation of the primary pressure, etc., the displacement amount of the diaphragm 5 2 changes accordingly.
- the secondary spring pressure can be set by changing the urging force of the pressure adjustment spring 5 1 3 by moving the pressure adjustment screw 5 1 2.
- the pressure regulation characteristic by the regulating valve 55 for the primary pressure change and the pressure regulation characteristic by the first backflow prevention valve 56 are opposite to each other, and the secondary pressure for the drop in the primary pressure is 5
- the shaft 5 2 2 has a pressure loss applied to the projected area of the regulating valve 55 by the action of the primary pressure on the tip of the shaft part 5 2 4, and the first pressure by the action of the secondary pressure on the boss part 5 2 3.
- the pressure loss received by the projected area of the backflow prevention valve 5 6 acts in the same direction to retract the shaft 5 2 2 and the 2 7 fire pressure against the fluctuation of the primary pressure due to the combination of the pressure regulation characteristics of both. It has a structure that keeps fluctuations constant.
- valve 5 5 opens in the first direction and the first backflow prevention valve 5 6 operates in the closing direction, and the primary pressure fluid is depressurized by the regulating valve 5 5 and flows into the pressure regulating chamber 5 3 0 to increase the secondary pressure.
- the secondary pressure rises from the set value as the primary pressure decreases and is adjusted by the opening (pressure loss) of the first check valve 56, and when the secondary pressure reaches the set value, The shaft 5 2 2 moves backward (moves upward in the figure) due to the displacement of the diaphragm 5 2, and the regulating valve 5 5 is closed to reduce the amount of fluid introduced so that a constant secondary pressure is obtained.
- the pressure is adjusted to
- the pressure regulation characteristics accompanying the fluctuation of the primary pressure that is, the adjustment for the primary pressure in the pressure vessel 12 gradually decreasing when fluid is supplied from the pressure vessel 12 It takes into account the pressure receiving error of valve 55.
- the first check valve 5 6 opens and closes in the reverse direction, which is different from the adjustment valve 5 5.
- the pressure loss of the first check valve 5 6 is the same as the pressure loss of the adjustment valve 5 5 and is almost reverse. It is individual.
- the adjusting characteristics of the regulating valve 55 are such that the secondary pressure decreases as the primary pressure increases.
- the regulation characteristics of the first check valve 5 6 suppress the secondary pressure when the primary pressure is low, and close the valve when the primary pressure is 0. This prevents the reverse flow of the fluid, opens when the primary pressure increases, and increases the secondary pressure with respect to the increase of the primary pressure. is there.
- Both pressure regulation characteristics act in the same direction with respect to the shaft 5 2 2, and the pressure regulation characteristics due to the combination of the two regulating valves 5 5 and 5 6, which have opposite pressure regulation characteristics, change the primary pressure.
- a constant secondary pressure is obtained.
- the pressure regulation characteristic increases the secondary pressure due to the pressure loss acting on the regulator valve 55.
- the pressure loss acting on the first backflow prevention valve 56 reduces the secondary pressure, the combined characteristics of the two become flat, and it is easy to maintain a constant secondary pressure. Can be secured by a simple structure.
- the first backflow prevention valve 56 and the second backflow prevention valve 57 act as check valves, thereby preventing fluid leakage.
- FIG. 10 and FIG. 11 show a second backflow prevention valve 5 7 ′ of another embodiment, and the second backflow prevention valve 5 7 of the embodiment is a single elastic plate, that is, a rubber plate.
- the second backflow prevention valve 5 7 ′ is an elastic plate having a foam 5 7 a inside and an impermeable skin 5 7 b on the upper and lower surfaces, for example, a poron body. It is formed.
- foam 5 7 a is lightweight, has no breathability through the skin 5 7 b in the vertical direction, and the pressure on the inlet side is lower than the secondary pressure and the secondary pressure is high
- the communication hole 5 4 3 of the partition wall portion 5 4 2 is quickly closed by the pressure acting from the upper side of the figure, and the backflow prevention operation can be stably obtained.
- this second check valve 5 7 it can be compressed and deformed. 3 is assembled in the compressed state between the tip of the joining cylinder part 5 3 3 and the upper surface of the partition part 5 4 2 of the introduction member 5 4 as shown in FIG.
- Fig. 1 1 shows a state in which pressure fluid is introduced. Pressure acting from communication hole 5 4 3
- the second backflow prevention valve 5 7 ′ is compressed and deformed by the pressure of the fluid. Open the communication hole 5 4 3 away from the upper surface of the pipe, and the pressure fluid that has flowed in from this passes through the outer periphery of the second backflow prevention valve 5 7 ′, and passes through the notch 5 3 4 at the end of the joining cylinder 5 3 3 It flows into the inner peripheral side, and flows into the pressure regulating chamber 5 30 through the regulating valve 5 5.
- FIG. 12 is a partially sectional exploded perspective view cut along a circumference around an axis Y passing through the center of the pressure regulating mechanism 7 of the present embodiment in a range of about 90 ° and partially disassembled.
- FIG. 13 is a partially enlarged cross-sectional view showing the upper part of the pressure regulating mechanism 7 of FIG. 12 in an enlarged manner.
- Fig. 14 shows the lower part of the assembled pressure regulating mechanism 7 of Fig. 12 along the circumference of the axis, line Y, within a range of about 90 ° and partially enlarged. It is a partial section expansion perspective view shown.
- the pressure adjusting mechanism 7 has a housing 70 including a main body case 73, a cover case 71, and a cylindrical introduction member 74 attached to the main body case 73.
- the main body case 7 3 and the cover case 71 have bulging portions 7 3 b and 7 1 b, respectively, and flanges 7 3 a and 7 1 a having the same shape on the outer periphery.
- a through-hole 7 3 d is formed in the bulging portion 7 3 b at a position corresponding to the axis Y (FIGS. 13 and 14).
- the main body case 7 3 and the cover case 71 have flanges 7 3 a and 7 1 a that are abutted with each other, and the flanges 7 3 a and 7 1 a are joined by screws (not shown) or the like.
- a recess 7 3 c is formed over the entire inner periphery of the flange 7 3 a.
- a diaphragm 7 2 is arranged in the recess 7 3 c, and by coupling of the flanges 7 3 a and 7 la, The diaphragm 72 is pressed and fixed between the flanges 73a and 71a. By forming the recess 73c, the diaphragm 72 is held in a fixed position. Therefore, the diaphragm 72 is twisted and threaded when the coupling and the pressing are fixed, and a defect such as fluid leakage occurs. The possibility of doing so can be reduced.
- Diaphragm 72 is a substantially flat plate-like member having elasticity made of, for example, rubber, and has a curved bent portion 72 a (FIG. 13) formed in a circular shape about axis Y.
- the diaphragm 72 has a circular opening 72 b (FIG. 13) formed in a portion corresponding to the axis Y.
- a supporter 721 is disposed on the upper surface inside the curved bending portion 72 a of the diaphragm 72.
- the supporter 72 1 has a flat plate portion 72 1 a (FIG. 13) that contacts the upper surface of the diaphragm 72 and a protruding portion 721 b that protrudes upward from the flat plate portion 72 1 a.
- the supporter 721 is preferably made of a lightweight member such as polyoxymethylene (POM), but may be made of metal.
- the upper surface of the protrusion 72 1 b is formed flat.
- a female thread 721 c (FIG. 13) is formed along the axis Y on the protrusion 72 1 b.
- the shaft 722 includes a flat plate portion 722 a (Fig. 13) located on the lower surface of the diaphragm 72, and shafts 72 2 b, 72 22 c (in the vertical direction of the flat plate portion 722 a along the axis Y. Figure 1 3).
- the shaft 722 b protrudes upward through the opening 72 b of the diaphragm 72, and the shaft 722 c extends downward through the through hole 73 d (FIGS. 13 and 14) of the main body case 73.
- the shaft 722 b is formed with a male screw 722 d and is configured to be screwed with the female screw 72 1 c of the supporter 72 1 described above to tighten the diaphragm 72 from both sides.
- the diaphragm 72 is sandwiched between the supporter 721 and the shaft 722 and configured integrally.
- a film 7 2 3 (FIG. 13) made of polyethylene terephthalate (PET) having a small friction coefficient between the saboter 7 2 1 and the diaphragm 2.
- PET polyethylene terephthalate
- the Finolem 7 2 3 is interposed as described above, but such a film may also be interposed in the pressure regulating mechanism 5 of the embodiment described above.
- a convex portion 7 11 is formed on the inner surface of the bulging portion 7 1 b of the cover case 7 1 at a position corresponding to the protruding portion 7 2 1 b.
- the tip that is, the lower surface of the convex portion 7 1 1 has a flat shape like the upper surface of the supporter 7 2 1.
- a small hole 7 11 a (FIG. 13) communicating with the outside is formed at the center of the convex portion 7 11. Since the outside is usually at atmospheric pressure, the space in the bulging portion 7 1 b is maintained at atmospheric pressure, and this space becomes the atmospheric chamber 7 10.
- a pressure regulating spring 7 1 3 is arranged on the outer periphery of the protruding portion 7 2 1 b of the supporter 7 2 1 and the convex portion 7 1 1 of the cover case 7 1.
- the pressure adjusting spring 7 1 3 always presses the diaphragm 7 2 downward with a predetermined pressure via the saboter 7 2 1.
- a gap G is secured between the lower surface of the convex portion 7 1 1 and the upper surface of the protruding portion 7 2 1 b of the supporter 7 2 1 in the normal use state of the pressure adjusting mechanism 7 (FIG. 13). .
- the cover case 71 the extending portion 71 c that bulges laterally from the bulging portion 71 b is formed (Fig. 1 2).
- the extension portion 7 1 c is formed with a pipe 7 15 extending outward from the extension portion 7 1 c in which a discharge port 7 14 is formed.
- a cylindrical space 7 10a communicating with the discharge port 7 14 is formed by the partition wall 7 1d (FIG. 12).
- the part of the body case 7 3 corresponding to the space 7 1 0 a 23 5 017207
- a substantially cylindrical space 7 3 0 a is formed by the partition wall 7 3 d.
- the end face 7 3 d of the partition wall 7 3 d is visible (Fig. 1 3), and the other end face of the partition wall 7 3 d is located at a position facing this end face 7 3 d '. Positioned, end faces cooperate to form a groove 7 3 e between them (FIGS. 13 and 14).
- an upward substantially annular step 7 30 b is formed in the main case 7 3 facing the space 7 30 a.
- a circular opening 7 2 c is formed in the diaphragm 7 2 corresponding to the spaces 7 10 a and 7 30 a (FIG. 12).
- a cylindrical member 7 3 1 having a flange 7 3 1 a is disposed through the opening 7 2 c of the diaphragm 7 2.
- the flange 7 3 1 a of the cylindrical member 7 3 1 is seated on the stepped portion 7 3 0 b.
- the cylindrical member 7 3 1 is dimensioned in the longitudinal direction so that there is a gap between its lower end and the inner surface of the bulging portion 7 3 b (Fig. 13 and Fig. 14). It becomes a passage that guides the fluid passing through to the outlet 7 1 4.
- the passage serves as an outlet for discharging the pressure fluid stored in the pressure regulating chamber 73 described later.
- the cylindrical member 7 3 1 is made of, for example, polyoxymethylene.
- the extended portion 7 1 c, the discharge port 7 14 and the pipe 7 15 are formed in the cover case 71.
- the present invention is not limited to this, and the adjustment described later.
- the main body case 73 may be provided with an extension portion, a discharge pipe, and a pipe as long as the fluid stored in the pressure chamber can be supplied to the outside (for example, a fuel cell).
- a space that is, a pressure regulating chamber 7 3 0 is formed between the ⁇ protruding portion 7 3 b of the main body case 7 3, the shaft 7 2 2, and the diaphragm 7 2.
- a circumferential groove 7 2 5 (FIG. 1 3) is formed at the tip of the shaft 7 2 2 c of the shaft 7 2 2 that protrudes downward through the through hole 7 3 d of the bulge 7 3 b.
- the regulating valve 7 5 is attached to the circumferential groove portion 7 2 5.
- This regulating valve 7 5 is driven up and down by the diaphragm 7 2 to cut off or release the flow of fluid passing between the shaft 7 2 2 c and the through hole 7 3 d, and the pressure regulating chamber 7 3 It is configured to adjust the fluid pressure within zero.
- Diaphragm 7 2 has elasticity as described above, so a bullet diaphragm is used. If the shaft 5 2 2, that is, the shaft 7 2 2 c on which the adjustment valve 7 5 is mounted, is tilted due to vibration of the system 7 2 or the like, the valve seat on the bottom surface of the bulge 7 3 b may be damaged, resulting in poor pressure control.
- the outer periphery of the flat plate portion 7 2 2 a of the shaft 7 2 2 is supported by an inclination by the partition wall 7 3 d of the main body case 7 3 and the inner peripheral surface of the bulging portion 7 3 b.
- the tilt of the shaft 72 2c can be further reduced.
- a passage groove 73 2 through which the fluid that has passed through the passage extends extends from the space as shown in FIG.
- the shaft 7 2 2 moves downward to open the regulating valve 75 so that the shaft 7 2 2
- the flat plate part 7 2 2 a can be prevented from coming into contact with the lower surface of the main body case 7 3 to make it difficult for the fluid to flow.
- the passage groove 7 3 2 is provided at a position facing the outlet with the shaft 7 2 2 c interposed therebetween, the flow of fluid extends over a wide range of the pressure regulating chamber 7 3 0. It becomes difficult for gas to remain in the chamber 7 30, reducing the cause of abnormal vibration of the diaphragm 72 (so-called chattering; hereinafter referred to as chattering), and improving the operational stability of the pressure regulating mechanism 7.
- chattering chattering
- the passage groove 73 2 is formed as described above, but such a passage groove may also be formed in the main body case 53 of the pressure regulating mechanism 5 of the embodiment described above.
- the pressure regulating chamber 73 in this embodiment is substantially formed only by the moving space of the diaphragm 72 and the shaft 72 2 and the fluid flow path.
- compressible fluid such as gas
- the fluid is likely to vibrate, and the diaphragm chatters due to the vibration.
- it is necessary to make the pressure regulating chamber sufficiently large as a buffer that absorbs the pressure difference.
- an incompressible fluid such as a liquid
- the fluid vibrates. Therefore, the volume of the pressure regulating chamber 7 30 can be reduced, and the pressure regulating chamber 7 30 as described above can be formed.
- the design of the pressure regulating chamber 7 30 can be conveniently changed depending on the fluid accommodated in the pressure regulating chamber 7 30.
- An annular wall 7 3 f projects downward from the bulging portion 7 3 b of the main body case 7 3 so as to surround the tip of the shaft 7 2 2 c.
- An annular groove 7 3 f ′ (FIG. 13) is formed on the outer periphery of the base end of the annular wall 7 3 f, and an O-ring 7 3 3 is attached to the groove 7 3 f ′.
- a screw (not shown) is formed on the outer periphery of the annular wall 7 3 f and can be configured to be screwed with the introduction member 74.
- the introduction member 74 is a member to which the supply connector 3 (see FIG. 1) of the pressure vessel 12 described above is connected, and has a partition wall portion 7 4 2 in the middle in the longitudinal direction thereof.
- the partition wall portion 7 42 is formed with an opening 7 4 3 for receiving a linkage projection 7 6 c of a Bragg 76 described later.
- the inner peripheral surface surrounding the received linking projections 7 6 c that is, the inner peripheral surface below the partition wall portion 7 42 2 has a taper whose opening diameter increases toward the lower side. Yes. (Since this is a slight taper, it does not appear in the figure.) By doing so, the valve mechanism 6 described above can be smoothly inserted when connected to the supply connector 3, and the operability can be improved. it can.
- the taper is provided so that the seal member 33 is sealed before the stem valve 61 of the valve mechanism 6 is opened when the supply connector 3 is connected. Further, an angle formed by the inner peripheral surface and the partition wall portion 7 4 2 is a C surface 7 4 4. By doing so, the dead space in the introduction member 74 can be reduced, and fluid leakage at the time of connecting and disconnecting the supply connector 3 can be reduced.
- the taper and the C surface are formed as described above. However, even if such a taper and the C surface are formed on the introduction member 54 of the pressure regulating mechanism 5 of the above-described embodiment. Good.
- a filter 7 8, a joint 7 7, a compression coil spring (hereinafter simply referred to as a spring) 7 9 and a plug 7 6 are arranged between the J wall 7 4 2 and the bulge 7 3 b from above.
- the joint 77 has a generally cylindrical shape having an upper wall 7 7 a made of, for example, polyoxymethylene.
- a hole 7 7 is formed in the center of the upper wall 7 7 a of the joint 7 7, and an annular flange 7 7 d extending outward is formed between the upper wall 7 7 a and the lower end 7 7 c.
- the fino letter 7 8 has a shape in which an annular wall 7 8 b is suspended from the outer periphery of a circular plate-like portion 7 8 a and is covered by the upper wall 7 7 a of the joint 7 7.
- an annular wall 7 8 b is suspended from the outer periphery of a circular plate-like portion 7 8 a and is covered by the upper wall 7 7 a of the joint 7 7.
- the filter 7 8 is disposed above the partition wall portion 7 4 3, when connecting and removing the supply connector 3, it does not come into contact with the valve mechanism 6, thereby reducing the possibility of the fino letter 7 8 coming off. be able to.
- the fluid passage area through which the fluid passes through the filter 78 can be changed depending on the size of the hole 77 b, and the fluid flow speed can be increased if the fluid passage area is increased. Therefore, when there is no fuel (fluid) inside the fuel cell, it is possible to quickly supply the fluid in the initial state. ⁇
- the filter 78 has the above shape, but the present invention is not limited to this, and may be, for example, a plate.
- the material of the filter 78 is the same as that of the filter 58 of the above-described embodiment, and the description thereof is omitted.
- the flange 7 7 d is in contact with the lower end of the annular wall 7 3 f of the body case 7 3 in the assembled state, and the filter 7 8 is joined to the downward step 7 3 g of the annular wall 7 3 ⁇ . 7 7 Hold between the upper wall 7 7 a.
- the upper part of the filter 78 becomes an intermediate pressure regulating chamber 7 30 '(FIG. 14) from which the tip of the shaft 7 2 2 c of the shaft 7 2 2 protrudes.
- the aforementioned plug 76 has a pin shape made of stainless steel or polyoxymethylene, and has a disk-shaped flange 76a near its upper part.
- the upper shaft 7 6 b protruding above the flange 7 6 a has a diameter that can be inserted inside the spring 79.
- the lower shaft 7 6 c protruding downward from the flange 7 6 a converges toward the lower end of the plug 7 6. That is, a taper is formed and a tapered shape is formed.
- An O-ring 7 6 1 is crowned in the vicinity of the flange 7 6 a of the lower shaft 7 6 c.
- the lower shaft 7 6 c serves as a linkage projection 7 6 c as a linkage member that links the stem valve 61 described above.
- This linking projection 7 6 c has a regulating valve 7 5 and is separated from the shaft 7 2 2 c interlocking with the diaphragm 7 2, so that it does not receive a force that causes the diaphragm 7 2 to be displaced by the connecting operation. It is like that. That is, as in the above-described embodiment, the diaphragm 72 and the linking protrusion 76c are separated, so that the pressure regulation function can be secured and the supply of fluid at a pressure higher than the set secondary pressure is prevented. Yes.
- the spring 7 9 and the plug 7 6 are held between the upper wall 7 7 a of the joint 7 7 and the partition 7 4 2 of the introduction member 7 4. Is done.
- the flange 7 6 a of the plug 7 6 is urged downward by the spring 7 9 and is pressed between the O-ring 7 6 1 force flange 7 6 a and the partition wall portion 7 4 2.
- the O-ring 7 6 1 is in close contact with the partition wall portion 7 4 2 and the flange 7 6 a by the biasing force of the spring 7 9 when the supply connector 3 is not connected to the introduction member 7 4. .
- the pressurized fluid in the pressure adjusting mechanism 7 is prevented from leaking to the outside from between the linkage protrusions 7 6 c of the brags 7 6 and the openings 7 4 3 of the partition walls 7 4 2. Since this mechanism is independent of the regulating valve 7 25, it is not affected by the secondary pressure of the fluid or the secondary pressure setting.
- FIG. 15 shows the connection of supply connector 3
- the cross section of the pressure regulation mechanism 7 continued is shown.
- Fig. 15 shows the main part in section.
- the brag 76 is pressed upward by the stem 61.
- the plug 7 6, that is, the connecting projection 7 6 c and the adjusting valve 75 are provided, and the shaft 7 22 c interlocked with the diaphragm 7 2 is formed separately, so that the force due to the pressing does not apply to the diaphragm 7 2. Does not affect the pressure regulation function.
- the opening 74 3 of the introduction member 74 sealed by the O-ring 7 6 1 is opened, and the pressurized fluid passes through the opening 74 3, the groove 7 7 e inside the joint 7 7, and the filter 78 in this order. .
- the diaphragm 7 2 is urged downward by the pressure regulating spring 7 13. Therefore, the regulating valve 7 5 that seals the through-hole 7 3 d of the main body case 7 3 is moved downward from the through-hole 7 3 d, so the sealing of the through-hole 7 3 d is released. It is in the state that was done.
- the diaphragm 72 has a predetermined pressure in the pressure regulating chamber 7 30 by the pressure regulating spring 7 1 3 with respect to the pressure of the fluid to be supplied, for example, 90 Kpa to lMPa. It is set to be. That is, when the pressure of the fluid supplied from the supply connector 3 becomes higher than the pressure of the fluid to be supplied, the housing in the pressure adjusting chamber 73 ⁇ is resisted against the urging force of the pressure adjusting spring 7 1 3. Presses diaphragm 72 upward.
- the shaft 72 2 c of the shaft 7 2 2 moves upward, and the regulating valve 75 seals the through-hole 73 d of the main body case 7 3, and the pressurized fluid further flows into the pressure regulating chamber 7 3.
- Blocking into 0. Strictly speaking not only the pressure in the pressure regulating chamber 7 30 but also the force applied to the regulating valve 7 5 acts in the intermediate pressure regulating chamber 7 3 0 ′. That is, the projected area of the pressure regulating valve X in the intermediate pressure regulating chamber 7 3 0 ' Since the primary pressure is applied to the regulating valve 75, the regulating valve 75 may close or the regulating valve 75 may enter the valve seat and be deformed even by the pressure of the pressurized fluid.
- the diaphragm 72 constantly moves up and down with respect to fluctuations in the fluid pressure.
- the amount of vertical movement is very small, for example, about 0.3 mm. Therefore, the gap G, that is, the upper surface of the protruding portion 7 2 1 b of the saboter 7 2 1 and the force bar case 7
- the dimension between the lower surfaces of the convex portions 7 1 1 is maintained substantially constant.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Control Of Fluid Pressure (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP05785807A EP1798623A4 (en) | 2004-09-14 | 2005-09-12 | PRESSURE REGULATOR |
| US11/575,277 US20080314462A1 (en) | 2004-09-14 | 2005-09-12 | Pressure Regulator |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-266463 | 2004-09-14 | ||
| JP2004266463 | 2004-09-14 | ||
| JP2005-243658 | 2005-08-25 | ||
| JP2005243658A JP2006114017A (ja) | 2004-09-14 | 2005-08-25 | 調圧装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006030923A1 true WO2006030923A1 (ja) | 2006-03-23 |
Family
ID=36060168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/017207 Ceased WO2006030923A1 (ja) | 2004-09-14 | 2005-09-12 | 調圧装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20080314462A1 (ja) |
| EP (2) | EP1798623A4 (ja) |
| JP (1) | JP2006114017A (ja) |
| KR (1) | KR20070057248A (ja) |
| WO (1) | WO2006030923A1 (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101375093B (zh) | 2006-08-29 | 2010-06-02 | 佳能株式会社 | 流体管道的连接机构及其制造方法和包括其的燃料电池系统 |
| EP2565468B1 (de) * | 2011-09-01 | 2015-07-29 | Carl Freudenberg KG | Ventilanordnung |
| CN102563346B (zh) * | 2012-02-07 | 2014-09-03 | 内蒙古物通天下网络科技有限责任公司 | 基于二维码的气瓶防偷倒气系统 |
| DE202017104079U1 (de) * | 2017-07-07 | 2017-08-21 | Samson Ag | Stellantrieb für Prozessventile |
| GB201711670D0 (en) * | 2017-07-20 | 2017-09-06 | Qinov8 Uk | Safety valve |
| KR20220002204U (ko) | 2021-03-08 | 2022-09-15 | 문영택 | 산소 용접기용 초소형 압력조정기 |
| WO2025031682A1 (en) * | 2023-08-10 | 2025-02-13 | Micro Matic A/S | A pressure regulation device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3229716A (en) | 1962-08-27 | 1966-01-18 | Fisher Governor Co | Cylinder valve unit |
| US3590860A (en) | 1969-07-31 | 1971-07-06 | Bernzomatic Corp | Pressure regulator valve for l. p. cartridges |
| DE2648110A1 (de) * | 1976-10-23 | 1978-04-27 | Schulz & Rackow | Steckaufsatz fuer anschlussarmaturen mit absperrbarem durchlass |
| JPS59103078A (ja) * | 1982-11-12 | 1984-06-14 | シュルツ・ウント・ラッコウ・ゲ−・エム・ベ−・ハ− | ガス容器バルブ |
| JPS6228210U (ja) * | 1985-07-30 | 1987-02-20 | ||
| JPS63179513U (ja) * | 1987-05-09 | 1988-11-21 | ||
| US6105598A (en) | 1996-06-14 | 2000-08-22 | United States Filter Corporation | Low capacity chlorine gas feed system |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2005445A (en) * | 1931-03-16 | 1935-06-18 | Alfred H Wiedhofft | Regulator |
| FR1550346A (ja) | 1967-11-06 | 1968-12-20 | ||
| US3693652A (en) * | 1970-03-04 | 1972-09-26 | Gurtner Sa | Liquefied gas tank distributor valve units |
| US4225060A (en) * | 1978-12-29 | 1980-09-30 | Security Plastics, Inc. | Continuous pumping system |
| JPS55141807A (en) * | 1979-04-23 | 1980-11-06 | Toshiba Corp | Antenna unit for transponder |
| US4324269A (en) * | 1980-07-15 | 1982-04-13 | Baranowski Jr Frank | Pressure regulator |
| JPS63179513A (ja) * | 1987-01-21 | 1988-07-23 | Nec Corp | 非混和性化合物半導体四元混晶の製造方法 |
| JPH03117857A (ja) * | 1989-09-29 | 1991-05-20 | Aisin Seiki Co Ltd | 往復動機械 |
| JPH0355731U (ja) * | 1989-10-03 | 1991-05-29 | ||
| US5178799A (en) * | 1991-01-07 | 1993-01-12 | Wilshire Partners | Carbonated beverage dispensing apparatus |
| US5144708A (en) * | 1991-02-26 | 1992-09-08 | Dielectrics Industries | Check valve for fluid bladders |
| US5265844A (en) * | 1992-11-02 | 1993-11-30 | Westfall Randell W | Receptacle valve assembly and seal |
| DK46794A (da) * | 1994-04-22 | 1995-10-23 | Kosan Teknova As | To-trins reduktionsventil til luftformige medier |
| JP2002157022A (ja) * | 2000-11-21 | 2002-05-31 | Corona Corp | 給湯機に用いる逆止弁付き減圧弁装置 |
-
2005
- 2005-08-25 JP JP2005243658A patent/JP2006114017A/ja active Pending
- 2005-09-12 EP EP05785807A patent/EP1798623A4/en not_active Withdrawn
- 2005-09-12 WO PCT/JP2005/017207 patent/WO2006030923A1/ja not_active Ceased
- 2005-09-12 KR KR1020077008568A patent/KR20070057248A/ko not_active Ceased
- 2005-09-12 US US11/575,277 patent/US20080314462A1/en not_active Abandoned
- 2005-09-12 EP EP20090015824 patent/EP2172827A3/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3229716A (en) | 1962-08-27 | 1966-01-18 | Fisher Governor Co | Cylinder valve unit |
| US3590860A (en) | 1969-07-31 | 1971-07-06 | Bernzomatic Corp | Pressure regulator valve for l. p. cartridges |
| DE2648110A1 (de) * | 1976-10-23 | 1978-04-27 | Schulz & Rackow | Steckaufsatz fuer anschlussarmaturen mit absperrbarem durchlass |
| JPS59103078A (ja) * | 1982-11-12 | 1984-06-14 | シュルツ・ウント・ラッコウ・ゲ−・エム・ベ−・ハ− | ガス容器バルブ |
| JPS6228210U (ja) * | 1985-07-30 | 1987-02-20 | ||
| JPS63179513U (ja) * | 1987-05-09 | 1988-11-21 | ||
| US6105598A (en) | 1996-06-14 | 2000-08-22 | United States Filter Corporation | Low capacity chlorine gas feed system |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1798623A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006114017A (ja) | 2006-04-27 |
| US20080314462A1 (en) | 2008-12-25 |
| EP1798623A4 (en) | 2009-10-28 |
| EP1798623A1 (en) | 2007-06-20 |
| KR20070057248A (ko) | 2007-06-04 |
| EP2172827A2 (en) | 2010-04-07 |
| EP2172827A3 (en) | 2010-04-21 |
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