WO2005124203A1 - 弁装置 - Google Patents
弁装置 Download PDFInfo
- Publication number
- WO2005124203A1 WO2005124203A1 PCT/JP2005/007899 JP2005007899W WO2005124203A1 WO 2005124203 A1 WO2005124203 A1 WO 2005124203A1 JP 2005007899 W JP2005007899 W JP 2005007899W WO 2005124203 A1 WO2005124203 A1 WO 2005124203A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- housing
- seat block
- seat
- pressure reducing
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
- F16K1/425—Attachment of the seat to the housing by plastical deformation, e.g. valve seat or housing being plastically deformed during mounting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
- F16K1/443—Details of seats or valve members of double-seat valves the seats being in series
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- 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
- Y10T137/86389—Programmer or timer
- Y10T137/86469—Clock alarm mechanism 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
- Y10T137/86493—Multi-way valve unit
- Y10T137/86879—Reciprocating valve unit
Definitions
- the present invention relates to a valve device provided in, for example, a fluid pressure device.
- Fig. 12 is a cross-sectional view showing a first conventional on-off valve 1.
- the on-off valve 1 has a housing 3 in which a valve 3 is held so as to be displaceable in the axial direction, and a spring member 4 that applies a spring force to the flange portion of the valve body 3 in the axial direction xl covers the valve body 3. It is configured to be provided.
- the supply port 5 and the discharge port 6 are formed in the housing 2, and a valve seat 7 is formed around the supply port 5.
- the valve element 3 closes the valve passage when its contact portion is seated on the valve seat 7, and opens the valve passage when the contact portion is separated from the valve seat 7.
- a seat portion made of rubber or grease is provided at the contact portion of the valve body 3 to securely close the valve passage when the valve is closed and to prevent a gap from being formed between the contact portion and the valve seat 7. Is provided.
- the valve element 3 When the valve element 3 is seated on the valve seat 7 in this manner, the interior of the housing 2 is partitioned into a first pressure chamber connected to the supply port 5 and a second pressure chamber connected to the discharge port 6. Further, the on-off valve 1 applies an electromagnetic force to the valve body 3, which also has a ferromagnetic material force, in the other axial direction x2 in the housing 2, and cooperates with the spring member 4 to form the supply port 5 and the discharge port 6.
- a solenoid 10 is provided for controlling communication and shutoff of the vehicle.
- valve body 3 In a state where power is not supplied to the solenoid 10, the valve body 3 is given a spring force in the axial direction xl by the spring member 4 so that the seat portion 8 is in the shut-off position where the seat portion 8 is seated on the valve seat 7.
- the supply port 5 and the discharge port 6 are shut off.
- the solenoid 10 When the solenoid 10 is energized, the valve body 3 is placed at a separated position where the electromagnetic force directed to the other axial direction x2 is applied by the solenoid 10, and the seat portion 8 is separated from the valve seat 7.
- Port 5 and discharge port 6 communicate. In this way, communication between the supply port 5 and the discharge port 6 can be switched.
- FIG. 13 is a cross-sectional view showing a pressure reducing valve 11 according to a second conventional technique.
- the pressure reducing valve 11 has a housing 14 in which a valve passage communicating with the primary port 12 and the secondary port 13 is formed.
- the valve body 15 is held, and the opening degree of the valve passage is adjusted by the valve body 15.
- the valve element 15 is connected to a diaphragm 16 held by the housing 14 via a valve shaft 17.
- the diaphragm 15 receives pressure from the fluid in the pressure chamber 18 maintained at a secondary pressure (hereinafter sometimes referred to as “secondary pressure”), and based on this pressure, generates a driving force in a direction to close the valve passage.
- secondary pressure secondary pressure
- a pressure adjusting spring 19 is provided, and the driving force in the direction of opening the valve passage is applied to the valve body 15 by the pressure adjusting spring 19.
- the secondary pressure is controlled to the pressure set by the pressure adjusting spring 19.
- the valve body 15 closes the valve passage by seating the contact portion on a valve seat 20 formed in the housing, and closes the valve passage by separating the contact portion from the valve seat 20. open.
- a seat portion made of rubber or resin is provided at the contact portion of the valve body 15 in order to securely close the valve passage when the valve is closed and to prevent a gap from being formed between the contact portion and the valve seat portion. 21 is provided.
- FIG. 14 is a sectional view showing a third prior art valve device 22.
- the valve device 22 includes an opening / closing valve 23 and a pressure reducing valve 24, and the opening / closing valve 23 and the pressure reducing valve 24 are arranged such that they are interposed in the middle of the flow path where the fluid flows down from the supply side to the discharge side. It is formed integrally with the housing 25 where the path is formed.
- the valve bodies 26 and 27 provided on the on-off valve 23 and the pressure reducing valve 24 have their abutting portions seated on valve seats 28 and 29 formed in the housing 25 to close the valve passage, and to abut the abutting portions. Is separated from the valve seats 28 and 29 formed in the housing 25 to open the valve passage.
- the contact portions of the valve bodies 26 and 27 are made of rubber or resin in order to securely close the valve passage when the valve is closed and to prevent a gap from being formed between the contact portion and the valve seat portion.
- Sheet sections 30 and 31 are provided (for example, see Patent Document 1).
- Patent Document 1 JP-A-2003-49997 (Pages 4-5, Fig. 3)
- the on-off valve 1 of the first conventional technology and the pressure reducing valve 11 of the second conventional technology surely close the valve passage when the valve is closed, and the contact portions of the valve bodies 3 and 15 and the valve seat portion are formed.
- sheet portions 8 and 21 made of rubber or resin are provided at the contact portions.
- valve elements 26 and 27 are provided for the on-off valve 23 and the pressure reducing valve 24, respectively, and seat portions 30 and 31 are provided for the valve elements 26 and 27, respectively. ing. Therefore, although the opening / closing valve 23 and the pressure reducing valve 24 are provided in one housing 25 and integrated, it is necessary to provide the seat portions 30 and 31 in each of the valve bodies 26 and 27, and the structure of the valve device 22 And the manufacturing cost increases.
- An object of the present invention is to provide a valve device that reduces the number of steps and simplifies the structure.
- the present invention provides a housing in which a valve passage is formed
- valve device includes a seat block in which a seat portion on which each valve element is seated is made of a soft material.
- the plurality of valve bodies are displaceably held by the housing. These multiple valves open and close the valve passage.
- One seat block is provided in common for a plurality of valve elements and fixed to the housing.
- the seat portion of the seat block on which each valve element is seated is formed of a soft material.
- the present invention is configured such that the sheet block is formed by mounting a sheet forming member forming a sheet portion made of a soft material on a base made of a hard material.
- a sheet block is formed by mounting a sheet forming member on a base made of a hard material.
- This sheet forming member forms a sheet portion made of a soft material.
- the sheet forming member is bonded to a base.
- the sheet forming member is bonded to the base.
- the sheet forming member can be mounted on the base.
- the base is provided to be fixed to a housing
- the sheet forming member is attached to the base by being sandwiched between the base and the housing. It is constituted as follows.
- the base is provided fixed to the housing.
- the sheet forming member is a substrate
- the base and the sheet forming member are configured such that a closed loop-shaped sharp ridge formed on the base is brought into contact with the sheet forming member to achieve sealing.
- a closed-loop sharp ridge is formed on the base.
- the seal between the base member and the seal forming member is achieved by bringing the protrusion into contact with the seal forming member.
- the housing is configured by connecting a plurality of housing members, and the seat block has a sandwiched portion, and the sandwiched portion is sandwiched between the housing members and fixed to the housing. It is constituted so that.
- a housing is formed by connecting a plurality of housing members.
- the held portion is held between the housing members and fixed to the housing.
- the present invention is configured such that the seat block is screwed and fixed to the housing.
- the seat block is screwed and fixed to the housing.
- the seat block is configured such that a part of the housing is caulked, deformed, and fixed.
- the seat block is fixed by stiffening a part of the housing and deforming the housing.
- the housing is provided with one seat block in common for each valve body, and in particular, each valve body is seated on the seat portion of one seat block. Therefore, the following effects are obtained.
- a plurality of seat components on which each valve element is seated, that is, a plurality of seat blocks as in the related art is not required.
- the structure that also serves as the seat block can simplify the structure and reduce the number of parts compared to the conventional valve device. The As a result, the manufacturing cost of the valve device can be reduced.
- the seat block includes a seat portion that also has a soft material force, it is not necessary to form the seat portion on the valve body itself as in the related art. Accordingly, when forming the seat portion, the valve body is not damaged. Therefore, the seat portion can be easily formed without damaging the valve body. Therefore, the man-hour required for forming the seat portion can be reduced, and the manufacturing cost of the valve device can be reduced accordingly. Since the seat block is fixed to the housing, the following effects can be obtained. After a sheet portion is formed in the seat block, the seat block can be fixed to the nozzle. In this case, the structure of the housing itself can be simplified as compared with the case where the seat portion is formed in the housing itself or the seat block is integrally provided in the housing. As a result, it is possible to reduce the manufacturing cost of the mold. The force required for assembling the valve device can be reduced.
- a sheet portion is formed by mounting the sheet forming member on the base.
- a sheet block By mounting the sheet forming member on the base, a sheet block can be realized. Since the sheet forming member forming the sheet portion made of the soft material is attached to the base made of the hard material, the degree of adhesion between the base and the sheet forming member can be increased. Therefore, the seat block can be easily formed.
- a sheet block including a sheet portion can be easily realized by bonding a sheet forming member to a base.
- the base is provided fixed to the housing.
- the seat block can be fixed.
- the sheet forming member is mounted on the base while being sandwiched between the base and the housing. Therefore, it is easy to mount the sheet forming portion on the base. That is, the seat block can be easily formed.
- the sealing can be achieved by the base member and the sheet forming member by bringing the closed loop-shaped sharp ridge formed on the base member into contact with the sheet forming member.
- the space required to achieve the seal is less than the seal achieved by an O-ring, with less restrictions on forming. Also O
- the configuration of the seat block can be simplified, the number of parts can be reduced, and the manufacturing cost of the valve device can be reduced.
- the seat block can be fixed to the nozing by the plurality of housing members connected to each other to form the housing sandwich the sandwiched portion of the seat block.
- the seat block can be fixed simultaneously when a plurality of housing members are connected to form a housing. Therefore, the seat block can be easily fixed to the housing.
- the seat block since the seat block is screwed and fixed to the housing, when the seat block is fixed to the nosing, the seat block is fixed to the housing while confirming the positional accuracy of the seat block. be able to. As a result, it is possible to realize the housing of the seat block and a valve device with high positional accuracy with respect to each valve element.
- the seat block is fixed by squeezing a part of the housing and deforming it, when the seat block is fixed to the nodging, the position accuracy of the seat block is checked.
- the seat block can be fixed to the nozing. As a result, a valve device having high positional accuracy with respect to the housing of the seat block and each valve element can be realized.
- FIG. 1 is an enlarged sectional view showing a part of a valve device according to a first embodiment of the present invention.
- FIG. 2 is a sectional view showing a valve device.
- FIG. 3 is an enlarged cross-sectional view showing a part of a valve device according to a second embodiment of the present invention.
- FIG. 4 is a cross-sectional view showing an enlarged part of a valve device according to a third embodiment of the present embodiment.
- FIG. 5 is an enlarged cross-sectional view showing a part of a valve device according to a fourth embodiment of the present embodiment.
- FIG. 6 is an enlarged sectional view showing a part of a valve device according to a fifth embodiment of the present invention.
- FIG. 7 is an enlarged sectional view showing a part of a valve device according to a sixth embodiment of the present invention.
- FIG. 8 is an enlarged sectional view showing a part of a valve device according to a seventh embodiment of the present invention.
- FIG. 9 is a cross-sectional view showing an enlarged part of a valve device according to an eighth embodiment of the present invention.
- FIG. 10 is an enlarged sectional view showing a part of a valve device according to a ninth embodiment of the present invention.
- FIG. 11 is an enlarged cross-sectional view showing a part of a valve device according to a tenth embodiment of the present embodiment.
- FIG. 12 is a cross-sectional view showing a first conventional on-off valve.
- FIG. 13 is a sectional view showing a pressure reducing valve according to a second conventional technique.
- FIG. 14 is a cross-sectional view showing a valve device of a third conventional technique.
- FIG. 1 is an enlarged sectional view showing a part of a valve device 40 according to a first embodiment of the present invention.
- FIG. 2 is a sectional view showing the valve device 40.
- the valve device 40 is interposed in the flow path where the fluid flows down from the supply side to the discharge side, controls the discharge of the supplied fluid, and controls the primary pressure supplied from the supply side (hereinafter referred to as “primary pressure”) PI
- Primary pressure This is a valve that reduces the pressure of the fluid to a secondary pressure (hereinafter referred to as “secondary pressure”) P2 fluid.
- the valve device 40 includes an on-off valve section 41, a pressure reducing valve section 42, a seat block housing 43, and a seat block 44.
- the on-off valve section 41 and the pressure reducing valve section 42 are mechanically connected to the seat block housing 43 so that the plunger 45 and the piston 46 face each other.
- the plunger 45 is provided on the on-off valve portion 41
- the piston 46 is provided on the pressure reducing valve portion 42.
- the seat block 44 is configured such that the plunger 45 and the piston 46 can be seated thereon, and a seat portion 47 is formed in a portion where the plunger 45 and the piston 46 are seated.
- the on-off valve section 41, the pressure reducing valve section 42, the seat block housing 43, and the seat block 44 are provided coaxially with each other. However, it is not limited to the one provided coaxially.
- the on-off valve section 41 constitutes an on-off valve 48 together with the seat block housing 43 and the seat block 44.
- the on-off valve 48 is interposed in the middle of the flow path where the fluid flows down to the supply side force discharge side, and controls the discharge of the supplied fluid.
- the on-off valve section 41 includes an on-off valve housing 49, a plunger 45, a fixed magnetic pole 50, an on-off valve spring member 51, and a solenoid 52.
- the on-off valve housing 49, the plunger 45, the fixed magnetic pole 50, and the on-off valve spring member 51 are provided coaxially with each other, and their respective axes are substantially coincident with the axis L1 of the on-off valve portion 41.
- the “substantially match” includes a match.
- the on-off valve housing 49 which is a housing member, also has a ferromagnetic material force, and has a cylindrical first on-off valve housing portion 49a, a cylindrical second on-off valve housing portion 49b, and a cylindrical second on-off valve housing portion 49b.
- An on-off valve housing 49c The axes of the first on-off valve housing 49a, the second on-off valve housing 49b, and the third on-off valve housing 49c substantially coincide with the axis L1 of the on-off valve 41.
- the first on-off valve housing portion 49a is formed in a cylindrical shape, and has a small-diameter portion 53 at one end in the axial direction and a medium-diameter portion 54 at the other end in the axial direction.
- a large diameter portion 55 is formed between one end and the other end in the direction.
- the small diameter portion 53 is a hole for passing the plunger 45
- the medium diameter portion 54 is a hole for fitting and fixing the fixed magnetic pole 50
- the large diameter portion 55 is a hole for the solenoid 52. It is a hole for providing.
- the axes of the small diameter portion 53, the middle diameter portion 54, and the large diameter portion 55 are substantially coincident with each other.
- the second on-off valve housing portion 49b is formed in a cylindrical shape having a smaller diameter than the first on-off valve housing portion 49a, and one end in the axial direction is connected to the small-diameter portion 53 of the first on-off valve housing portion 49a by an axis. It is provided so as to protrude in one direction XI.
- the inner peripheral surface of the second on-off valve housing portion 49b is formed so as to be substantially flush with the small diameter portion 53, and the on-off valve screw portion 56 is formed on the outer peripheral surface of the second on-off valve housing portion 49b. .
- the on-off valve screw portion 56 is configured to be screwable to the seat block housing 43.
- the third on-off valve housing portion 49c has an outer peripheral surface formed into a cylindrical shape having a smaller diameter than the outer peripheral surface of the second on-off valve housing portion 49b, and the other axial end of the second on-off valve housing portion 49b. Is provided so as to protrude in the axial direction XI.
- the third on-off valve housing portion 49c is formed so that the inner peripheral surface thereof is substantially flush with the inner peripheral surface of the second on-off valve housing portion 49b, and the on-off valve flow path 57 penetrating in the thickness direction is formed. It is formed.
- a part of the plunger 45 is displaceably disposed inside the third on-off valve housing portion 49c.
- the large-diameter portion 55 of the first on-off valve housing 49a is provided with a non-magnetic member 58 protruding in the other axial direction.
- the non-magnetic member 58 is formed in a cylindrical shape whose inner diameter is substantially the same as the inner diameter of the second on-off valve housing portion 49b, and is configured to be able to hold the solenoid 52 provided in the large-diameter portion 55.
- the on-off valve housing 49 thus configured is formed with an on-off valve through-hole portion 59 that can penetrate the plunger 45 and forms a through-hole penetrating in the axial direction.
- the solenoid 52 is disposed on the large-diameter portion 55, and the fixed magnetic pole 50 is fitted and fixed on the middle-diameter portion 54.
- the axial end on the first on-off valve housing 49a side is defined as the axial one end
- the axial end on the third on-off valve housing 49c side is defined as the axial direction. The other end.
- the plunger 45 which is a valve body, is made of a ferromagnetic material, and is generally formed in a cylindrical shape.
- One end of the plunger 45 in the axial direction is provided with a plunger spring receiving portion 60 that is recessed in the axial direction. Is formed.
- the plunger spring receiving portion 60 has a circular cross section cut along a virtual plane perpendicular to the axial direction, and is formed so as to be able to abut one axial end of the on-off valve spring member 51.
- the other end of the plunger 45 is formed in a step shape, and has a smaller diameter than one end of the plunger 45.
- the opening / closing valve space 105 is mainly formed by the third opening / closing valve housing 49c, the small diameter portion of the plunger 45, and the seat block 44.
- a substantially annular on-off valve body piece 62 protruding in the axial direction XI is formed.
- the substantially annular shape includes an annular shape.
- the plunger spring receiving portion 60 which is one end in the axial direction, is disposed on one end in the axial direction of the on-off valve housing 49, and the on-off valve valve element piece 62, which is the other end in the axial direction, is used for the on-off valve.
- the housing 49 is inserted into the on-off valve through hole 59 so as to be disposed on the other end side in the axial direction of the housing 49, and is held by the on-off valve housing 49.
- the plunger 45 is configured to be slidable along the axis L1 in the axial direction XI and the opposite axial direction X2.
- the fixed magnetic pole 50 is made of a ferromagnetic material, and is generally formed in a cylindrical shape.
- the fixed magnetic pole 50 is formed such that one end portion 64 in the axial direction is fitted and fixed to the middle diameter portion 54, and is formed in a stepped shape in the other axial direction X2.
- the other end 65 in the axial direction of the fixed magnetic pole 50 has a smaller diameter than the one end 64 in the axial direction, and is formed so as to be fitted to the non-magnetic member 58.
- a fixed magnetic pole spring receiving portion 63 recessed in the axial direction is formed.
- the fixed magnetic pole spring receiving portion 63 has a circular cross section cut along an imaginary plane perpendicular to the axial direction, and is configured to be able to abut the other end of the on-off valve spring member 51 in the axial direction. You.
- the fixed magnetic pole 50 is fixed to the opening / closing valve housing 49 so that one end 64 in the axial direction is fixed to the middle diameter portion 54 of the opening / closing valve housing 49, and the fixed magnetic pole spring receiving portion 63 faces the plunger spring receiving portion 60. Fixed.
- the on-off valve spring member 51 is a compression coil spring. One end of the spring member 51 is fitted inside the plunger spring receiving portion 60, and the other end is fitted inside the fixed magnetic pole spring receiving portion 63. In this way, the on-off valve spring member 51 is provided so as to be interposed between the plunger 45 and the fixed magnetic pole 50, and one end in the axial direction is supported by the plunger spring receiving portion 60, and the shaft is supported. Direction The other end is abutted and supported by the fixed magnetic pole spring receiving portion 63.
- the on-off valve spring member 51 one of the axial directions XI is directed to the on-off valve housing 49 and the fixed magnetic pole 50. A spring force can be applied to the plunger 45.
- the solenoid 52 is configured to include a cylindrical coil bobbin 66 made of a ferromagnetic material, and a coil 67 wound around the coil bobbin 66 about the axis L1.
- the plunger 45 is moved to a position where the plunger 45 is seated on the seat block 44 by a spring force that is directed in one axial direction XI of the on-off valve spring member 51. Be placed.
- the driving current I is applied to the coil 67 of the solenoid 52, the plunger 45 is moved in the other axial direction by the electromagnetic force due to the electromagnetic force.
- the plunger 45 is disposed at a position where the force of the seat block 44 is also separated.
- the solenoid 52 and the on-off valve spring member 51 cooperate to apply electromagnetic force and spring force to the plunger 45, thereby causing the plunger 45 to move.
- the seating state of the plunger 45 can be controlled.
- the pressure reducing valve section 42 constitutes a pressure reducing valve 68 together with the seat block housing 43 and the seat block 44.
- the pressure reducing valve 68 is interposed in the middle of the flow path where the fluid flows down from the supply side to the discharge side, This is a valve that reduces the supplied primary pressure fluid to a secondary pressure lower than the primary pressure and discharges the fluid.
- the pressure reducing valve portion 42 includes a pressure reducing valve housing 69, a piston 46, a pressure reducing valve spring member 70, and a rod 71.
- the pressure reducing valve housing 69, the piston 46, and a pressure reducing valve spring member are provided.
- the rod 70 and the rod 71 are provided coaxially with each other, and their respective axes substantially coincide with the axis L1 of the pressure reducing valve section 42.
- the pressure reducing valve housing 69 which is a housing member, is generally formed in a bottomed cylindrical shape.
- an open end 72 is formed in a stepped shape, and the open end 72 is formed in a small diameter by other portions.
- a pressure reducing valve screw portion 73 is formed on the outer peripheral surface of the open end 72.
- the pressure reducing valve screw portion 73 is configured to be screwed to the seat block housing 43.
- the pressure reducing valve housing 69 has an opening hole 75 that opens in the axial direction and allows the piston portion 74 to pass through, and a piston body housing hole 77 that houses the piston body 76 inward along the axis L1. Provided.
- the piston body storage hole 77 has a smaller diameter than the opening hole 75.
- the opening 75 is formed with a groove that is recessed radially outward over the entire circumference in the circumferential direction, and a seal member is formed in the housing groove so as to be fittable.
- the piston 46 which is a valve body, includes a piston portion 74 and a piston body 76 integrally formed with the piston portion 74.
- the piston portion 74 is generally formed in a cylindrical shape, and one end in the axial direction of the piston portion 74 is formed in a stepped shape.
- a substantially annular pressure reducing valve element piece 79 projecting in the other axial direction X2 is formed, and at the other end in the axial direction of the piston part 74, a piston body 76 is formed. Is done.
- the piston body 76 is formed in a cylindrical shape, is provided coaxially with the piston portion 74, and has an outer diameter larger than the outer diameter of the piston portion 74.
- a piston groove is formed on the outer peripheral surface of the piston body 76 so as to be depressed radially inward over the entire circumference in the circumferential direction, and a seal member is fitted into the piston groove.
- the piston body 76 is slidably held in the piston body storage hole 77.
- the piston 46 has a rod ⁇ through hole 80 through which a part of the rod 71 is slidably inserted, and a communication hole 81 that opens in the other axial direction and communicates with the rod ⁇ through hole 80. Is formed along.
- the rod hole 80 and the communication hole 81 are provided coaxially with each other, and the diameter of the communication hole 81 is smaller than that of the rod hole 80.
- a piston flow path 82 penetrating from one end to the other end in the axial direction is formed.
- the pressure reducing valve element piece 79 is disposed outside the pressure reducing valve housing 69, and the biston body 76 is fitted into the piston body storage hole 77 so as to be slidable along the axis L1.
- the pressure reducing valve housing 69 is provided so that a part of the piston portion 74 can pass through the opening hole portion 75 so as to be slidable along the axis L1.
- the piston 46 is held by the pressure reducing valve housing 69, and is configured to be slidable along the axis L1 in the axial direction XI and the axial direction X2.
- the pressure-reducing valve spring accommodating space 83 is formed.
- the pressure-reducing valve spring accommodating space 83 is formed so that the pressure-reducing valve spring member 70 can be disposed so as to be fitted on the piston portion 74.
- the pressure-reducing valve spring accommodating space 83 is opened to the atmosphere through an air-opening hole 84 formed in the pressure-reducing valve housing 69.
- the pressure-reducing valve spring member 70 is a compression coil spring, is disposed in the pressure-reducing valve spring accommodating space 83, and is provided in the pressure-reducing valve housing 69 so as to be fitted over the piston 46. Decrease One end in the axial direction of the pressure valve spring member 70 is supported in contact with the piston body spring receiving portion 85, and the other end is supported in contact with the storage hole spring receiving portion 86.
- the piston body spring receiving portion 85 is a portion facing the pressure reducing valve spring accommodating space 83 of the piston main body 76, and the housing hole spring receiving portion 86 is a piston body accommodating hole portion 77 of the piston body accommodating hole 77. It is the part that faces.
- the rod 71 has a substantially cylindrical shape, is held by the pressure reducing valve housing 69, has one axial end portion inserted through the rod ⁇ through hole 80, and has an axial line with respect to the piston 46. Along L1, it is slidably inserted in one axial direction XI and the other axial direction X2.
- the rod 71 is provided with at least the other end 85 in the axial direction protruding from the piston 46.
- the other end 85 in the axial direction has a larger outer diameter than the remaining portion, and It is configured such that the open end 86 of the rod ⁇ through hole 80 can be supported in the axial direction.
- An annular space 87 communicating with the piston flow path 82 is formed radially outward of the other end 85 in the axial direction.
- the outer peripheral portion abuts on the inner peripheral portion of the piston 46 in a state where sealing is achieved, and a back pressure chamber 88 is formed between the piston 46 and the rod 71, and the back pressure chamber 88 communicates with the piston 46. It communicates with hole 81.
- the seat block housing 43 which is a housing member, is formed in a cylindrical shape, and is provided with a pressure reducing valve section at an opening end 90 (hereinafter, may be referred to as “one opening end 90”) in the axial direction XI. 42 is screwed on, and the opening / closing valve portion 41 is screwed on an opening end 89 of the other side in the axial direction X2 (hereinafter sometimes referred to as “the other opening end 89”).
- a seat block holding portion 92 (FIG. 1) that protrudes inward in the radial direction and extends in the entire circumferential direction is formed at an intermediate portion in the axial direction of the seat block housing 43.
- a step portion 93 that is recessed outward in the radial direction and extends over the entire circumference in the circumferential direction is formed.
- the seat block 44 is fitted into the seat block holding portion 92.
- the seat block housing 43 is formed with a supply passage 94 for supplying fluid from the seat block holding portion 92 to the other axial direction X2 side, and discharges the fluid supplied from the seat block holding portion 92 to one axial direction XI side.
- a discharge channel 95 is formed.
- the seat block 44 has one end in the axial direction protruding radially outward and extending all around in the circumferential direction.
- a cylindrical sheet block main body 97 on which an extending flange portion 96 is formed, and a sheet forming member 101 are included.
- the seat block body 97 as the base body is made of a hard material, for example, stainless steel and brass force, and has a valve hole 98 that penetrates along the axis L1 and has a step at an intermediate portion in the axial direction.
- the seat block body 97 is not limited to a hard material, and may be formed of a soft material such as resin.
- a substantially annular groove recessed in the axial direction is formed so as to surround the valve hole 98, and a substantially annular opening / closing valve seat forming member 99 is formed in this groove.
- a substantially annular groove which is recessed in the axial direction so as to surround the valve hole 98 is formed, and a substantially annular pressure reducing valve seat forming member 100 is mounted in this groove.
- the pressure reducing valve seat portion 47b is formed.
- the on-off valve seat forming member 99 is made of rubber or resin, and is attached and fixed to the seat block main body 97 by being bonded to a groove formed at one axial end of the seat block main body 97.
- the on-off valve sheet forming member 99 is not limited to rubber or resin, and is not limited as long as it is a soft material that may be a soft metal such as copper.
- the pressure reducing valve sheet forming member 100 is made of rubber or resin, and is attached and fixed to the seat block main body 97 by being bonded to a groove formed at the other axial end of the seat block main body 97.
- the pressure reducing valve sheet forming member 100 is not limited to rubber or resin, and is not limited as long as it is a soft material that can be a soft metal such as copper.
- the seat forming member 101 includes an on-off valve seat forming member 99 and a pressure reducing valve seat forming member 100, and the seat portion 47 includes an on-off valve seat portion 47a and a pressure reducing valve seat portion 47b.
- a seat block main body groove is formed on the outer peripheral surface of the seat block main body 97 so as to be recessed inward in the radial direction and formed over the entire circumference in the circumferential direction, and a seal member 103 is mounted in the seat block main body groove.
- the portion other than the flange portion 96 is fitted to the portion of the seat holding portion 92 except the step portion 93, and the flange portion 96 is fitted to the step portion 93 and fitted to the seat block holding portion 92.
- the on-off valve seat portion 47a is configured such that the plunger 45 can be seated thereon.
- the on-off valve seat forming member 99 is arranged so as to face the on-off valve body piece 62, and is mounted on the on-off valve seat portion 47a.
- the lancer 45 is mounted on the seat block main body 97 so as to abut the plunger 45 in a seated state.
- the pressure reducing valve seat portion 47b is configured so that the piston 46 can be seated.
- the pressure-reducing valve sheet forming member 100 is disposed so as to face the pressure-reducing valve valve element piece 79, and the seat block main body 97 is arranged so that the piston 46 is seated on the pressure-reducing valve sheet portion 47 b and comes into contact with the piston 46. Attached to.
- a substantially annular orifice 102 is formed by the pressure reducing valve seat portion 47b and the pressure reducing valve valve piece 79.
- the seat block 44 achieves sealing by the seat block holding portion 92 and the seal member 103.
- the opening / closing valve 41 is screwed to the other open end 89 of the seat block housing 43.
- the seat block 44 fitted into the seat block holding portion 92 is moved in the axial direction of the third open / close valve housing portion 49c. It is pressed against the end.
- the flange portion 96 of the seat block 44 is sandwiched between the step portion 93 of the seat block holding portion 92 and the on-off valve housing 49, and the seat block 44 is held and fixed by the seat block holding portion 92.
- the pressure reducing valve portion 42 is screwed into one open end portion 90 of the seat block housing 43.
- valve device 40 is configured by fitting the seat block 44 into the seat block housing 43 and screwing the open / close valve portion 41 and the pressure reducing valve portion 42.
- a housing 104 of the valve device 40 is constituted by the on-off valve housing 49, the pressure reducing valve housing 69, and the seat block housing 43.
- a substantially annular opening / closing valve space 105 is formed by the seat block housing 43, the seat block 44, and the opening / closing valve portion 41. It is connected to a passage 94 and is connected to a valve hole 98 via an on-off valve flow path 57.
- a substantially annular pressure reducing valve space 106 is formed by the seat block housing 43, the seat block 44, and the pressure reducing valve portion 42, and the pressure reducing valve space 106 communicates with the discharge passage 95 and the valve hole 98. Further, the pressure reducing valve space 106 communicates with the back pressure chamber 88 through the communication hole 81 and communicates with the space 87 through the piston passage 82.
- the supply passage 94, the on-off valve space 105, the valve hole 98, the pressure reducing valve space 106, and the discharge passage 95 form the valve passage 107 of the valve device 40.
- the supply passage 94 extends from the on-off valve space 105 to the valve hole.
- the fluid flows down to the discharge passage 95 via the pressure reducing valve space 98 and the pressure reducing valve space 106.
- a step is formed in the valve hole portion 108 of the valve hole 98 at an intermediate portion in the axial direction, and the flow of the fluid flowing down the valve hole 98 can be rectified by the step.
- the supply of the drive current I to the solenoid 52 and the stop of the supply cause the solenoid 52 and the on-off valve spring member 60 to cooperate to apply an electromagnetic force to the plunger 45.
- the plunger 45 is displaced by the action of the spring and the spring force to control the seating state of the valve opening / closing seat portion 47a of the plunger 45 and the opening / closing state of the valve hole 98.
- the opening and closing of the valve passage 107 can be controlled.
- the on-off valve 48 of the valve device 40 can interrupt the fluid flowing down from the supply passage 94 to the valve hole 98.
- the fluid passing through the orifice 102 is reduced in pressure, in other words, the primary pressure fluid flowing down from the valve hole 98 is reduced to the secondary pressure by passing through the orifice 102. , And is discharged to a discharge passage 95.
- the piston body 76 receives the secondary pressure in the other axial direction X2 from the fluid in the space 87, and receives the spring force in the axial direction XI by the pressure reducing valve spring member 70.
- the piston 46 slides in the direction in which the piston 46 sits on the pressure reducing valve seat portion 47b, that is, slides in the direction to close the valve passage 107.
- the piston 46 is slidably displaced away from the pressure reducing valve seat 47b, that is, slides in a direction to open the valve passage 107. Dynamically displaces. In this way, the piston 47 slides in the opening and closing directions of the valve passage 107 to adjust the opening of the valve passage 107, that is, adjust the opening of the orifice 102 to pass through the orifice 102. Pressure of the fluid to be adjusted.
- a back pressure chamber 88 is formed, and by making the pressure receiving area of the back pressure chamber 88 the same as the inner area of the convex portion of the pressure reducing valve element piece 79, the primary pressure XI acting on the piston 46 in the axial direction is reduced. Canceled.
- the seat block 44 is configured to be able to seat the plunger 45 and the piston 46.
- the configuration of the valve device 40 that does not require the provision of a plurality of seat blocks can be simplified.
- the number of parts is reduced from that of the conventional valve device.
- the production cost can be reduced.
- the seat block 44 is fitted to the seat block holding portion 92, and is sandwiched and fixed between the seat block housing 43 and the on-off valve housing 49. As described above, the seat block 44 can be fixed simply by being pinched by the housing 104, and positioning is easy.
- one seat block 44 is provided in the housing 104 in common with the plunger 45 and the piston 46, and in particular, the plunger 45 is attached to the seat portion 47 of the one seat block 44.
- the piston 46 is seated, the following effects are obtained.
- a plurality of seat components on which the valve bodies 26 and 27 are seated that is, a plurality of seat blocks 30 and 31 (FIG. 14) are not required.
- the structure that also functions as the seat block 44 can simplify the structure as compared with the conventional valve device 22 (FIG. 14) and reduce the number of parts.
- the manufacturing cost of the valve device 40 can be reduced.
- the seat block 44 includes the seat portion 47 made of a soft material, it is not necessary to form the seat portion 47 on the plunger 45 and the piston 46 itself as in the related art. Thus, when the seat portion 47 is formed, the plunger 45 and the piston 46 are not damaged. Therefore, the seat portion 47 can be easily formed without damaging the plunger 45 and the piston 46. Therefore, the man-hour required for forming the seat portion 47 can be reduced, and the manufacturing cost of the valve device 40 can be reduced accordingly. Since the structure is such that the seat block 44 is fixed to the housing 104, the following effects can be obtained. After the seat block 47 is formed on the seat block 44, the seat block 44 can be fixed to the housing 104.
- the structure of the nozzle 104 can be simplified as compared with the case where the seat portion 47 is formed in the housing 104 itself or the seat block 44 is integrally provided in the housing 104. As a result, it is possible to reduce the manufacturing cost of the mold. As a result, the man-hour required for assembling the valve device 40 can be reduced. Further, since rubber or resin is adhered, the handling is easy and the formation of the sheet portion 47 is easy.
- sheet forming member 101 is mounted on seat block body 97 to form seat portion 47.
- Sheet formation on seat block body 97 By mounting the member 101, the seat block 44 can be realized. Since the sheet forming member 101 that forms the seat portion 47 made of a soft material is attached to the seat block body 97 that also has a hard material strength, the degree of adhesion between the seat block body 97 and the sheet forming member 101 can be increased. it can. Therefore, the seat block 44 can be easily formed.
- sheet block 44 including sheet portion 47 can be easily realized.
- seat block body 97 is provided fixed to housing 104.
- the seat block 44 can be fixed.
- the sheet forming member 101 is mounted on the seat block main body 97 while being sandwiched between the seat block main body 97 and the housing 104. Therefore, the sheet forming member 101 can be easily mounted on the seat block body 97, that is, the seat block 44 can be easily formed.
- the opening / closing valve housing 49 and the seat block housing 43 which are combined to form the housing 104, sandwich the flange portion 96 of the seat block 44, thereby forming the seat block 44.
- the seat block 44 can be simultaneously fixed when the housing 104 is formed by connecting the plurality of on-off valve housings 49, the pressure reducing valve housings 69, and the seat block housings 43. Therefore, the seat block 44 can be easily fixed to the housing 104.
- the housing 104 is provided with a discharge path for the on-off valve 48 and a pressure reducing valve 68.
- the structure of the valve device 40 which does not need to form a supply path can be simplified. As a result, the number of parts and man-hours can be reduced, and the manufacturing cost can be reduced.
- FIG. 3 is an enlarged sectional view showing a part of a valve device 40A according to a second embodiment of the present invention.
- the valve device 40A is similar to the valve device 40 of the first embodiment, and only different points will be described. The same components will be denoted by the same reference numerals and description thereof will be omitted.
- On-off valve housing 49 In this configuration, the third on-off valve housing portion 49c (FIG. 2) is not formed, and the outer peripheral surface of the flange portion 96A of the seat block 44A can be screwed to the step 93A of the seat block holding portion 92A.
- a hexagonal hole for screwing the seat block main body 97A to the step 93A is formed at one axial end of the valve hole 108A forming the valve hole 98A.
- the flange 96A which does not form a hexagonal grip on the outer periphery of the seat block 44A, can be screwed to the step 93A, and the seat block 44A can be fixed to the seat block holding portion 92A.
- the seat block 44A can be fixed by an easy operation simply by screwing the seat block 44A to the seat block holding portion 92A, and the seat block 44A can be positioned with high accuracy and fixed to the seat block housing 43A. Can be.
- the seat block 44A is screwed and fixed to the housing 104. Therefore, when fixing the seat block 44A to the nozzle 104, the position accuracy of the seat block 44A is checked.
- the seat block 44A can be fixed to the housing 104. As a result, the position accuracy of the seat block 44A with respect to the housing 104, the plunger 45 and the piston 46 is high, and a valve device can be realized.
- FIG. 4 is an enlarged cross-sectional view showing a part of a valve device 40 B according to a third embodiment of the present embodiment.
- the valve device 40B is similar to the valve device 40 of the first embodiment, and only different points will be described. The same components are denoted by the same reference numerals and description thereof will be omitted.
- the third on-off valve housing portion 49c (FIG. 2) is not formed, and the other axial end portion 109B of the step portion 93B of the seat block holding portion 92B is formed by squeezing.
- a plurality of squeezing portions 110 projecting radially inward are formed at appropriate circumferential intervals.
- the force portion 110 is deformed, and the flange portion 96 of the seat block 44 is fixed by the force portion 110.
- the flange portion 96 fitted to the step portion 93B is fixed, and the seat block 44 can be fixed to the seat block holding portion 92B, that is, it can be fixed to the seat block housing 43B.
- the seat block 44 can be easily fixed to the nozing 104 with high positional accuracy.
- a part of housing 104 is swaged by seat block 44.
- the seat block 44 When the seat block 44 is fixed to the nodding 104, the seat block 44 can be fixed to the housing 104 while confirming the positional accuracy of the seat block 44.
- FIG. 5 is an enlarged sectional view showing a part of a valve device 40C according to a fourth embodiment of the present embodiment.
- the valve device 40C is similar to the valve device 40 of the first embodiment, and only different points will be described. The same components are denoted by the same reference numerals and description thereof will be omitted.
- the seat block 44C includes a seat block body 97C, an on-off valve seat forming member 99, and a pressure reducing valve seat forming member 100C.
- the seat block body 97C is formed in a cylindrical shape, and has a substantially annular groove recessed in the axial direction in which the on-off valve seat forming member 99 can be mounted, is formed at one end in the axial direction.
- a fitting hole 112 which is recessed in the axial direction and into which the pressure reducing valve seat forming member 100C can be fitted is formed along the axis L1.
- the seat block main body 97C is configured to be able to fit into the step 93 of the seat block holding section 92.
- the pressure reducing valve sheet forming member 100C is a substantially cylindrical member, and has a flange portion 113 that protrudes outward in the radial direction and extends all around in the circumferential direction at one end in the axial direction.
- the flange portion 113 is formed so as to be fittable in the fitting hole portion 112, and is substantially flush with the other end portion 111 in the axial direction of the seat block main body 97C in a state fitted in the fitting hole portion 112. It is formed.
- the “substantially flush” includes the flush.
- the seat block main body 97C has a plurality of sharp ridges 115 protruding in the axial direction on a contact surface portion 114 that comes into contact with the pressure reducing valve seat forming member 100C.
- the plurality of protruding ridges 115 are substantially annular, sharp projections formed substantially concentrically with each other.
- the plurality of ridges 115 need only be formed in a closed loop shape that does not necessarily need to be formed in a substantially annular shape on a concentric circle.
- the pressure reducing valve sheet forming member 100C thus formed is fitted into the fitting hole 112 of the seat block main body 97C to form the seat block 44C.
- a valve hole 98 is formed in the seat block 44C so as to penetrate the pressure reducing valve seat forming member 100C and the seat block body 97C along the axis L1.
- the seat block 44C configured in this manner excludes a portion where the seat block main body 97C is fitted into the step portion 93 and fitted into the fitting hole 112 of the pressure reducing valve sheet forming member 100C. The remaining portion is fitted and attached to the remaining portion of the seat block holding portion 92 except for the step portion 93.
- the seat block 44C to be mounted is sandwiched and fixed by the on-off valve housing 49 and the seat block housing 43, similarly to the valve device of the first embodiment. By holding the seat block 44C in this manner, the pressure reducing valve sheet forming member 100C is held between the seat block main body 97C and the seat block holding portion 92.
- the pressure reducing valve sheet forming member 100C made of a soft material and the protrusions 115 are brought into close contact with each other to achieve sealing. Thereby, sealing can be achieved without providing a sealing member such as an O-ring.
- the seat block 44C mounted in this manner can be mounted by simply fitting the pressure reducing valve sheet forming member 100C to the seat block main body 97C and fixing the seat block main body 97C to the housing 104.
- the forming member 100C can be mounted on the seat block body 97C. Therefore, the pressure reducing valve sheet forming member 100C can be easily fixed. Since the seal is achieved by the plurality of ridges 115 formed on the abutment surface portion 114, the seal can be achieved with a smaller space compared to the case where the seal is achieved by providing a seal forming member such as an O-ring. Can be simple. As a result, the number of parts can be reduced, and the manufacturing cost of the valve device 40C can be reduced.
- the substantially annular sharp ridge 115 formed on the pressure reducing valve sheet forming member 100C is brought into contact with the seat block main body 97, so that the seat block main body 97C and the pressure reducing valve are formed. Since the sealing can be achieved by the sheet forming member 100C, the following effects can be obtained. As compared with the case where the seal is achieved by the seal member, the space required for achieving the seal is reduced because the restrictions in forming the seal are reduced. Also, compared to the case where sealing is achieved by a sealing member, the configuration of the seat block 44C can be simplified, the number of parts can be reduced, and the manufacturing cost of the valve device 40C can be reduced. .
- the opening / closing valve housing 49 and the seat block housing 43 that are connected to form the housing 104 sandwich the flange portion 113 of the seat block 44C, so that the seat block 44C is Can be fixed to 104.
- multiple on-off valve housings 49, pressure reducing valve housings 69 (Fig. 2) and seats When connecting the block housings 43 to form the housing 104, the seat block 44C can be fixed at the same time. Therefore, the seat block 44C can be easily fixed to the housing 104.
- FIG. 6 is a cross-sectional view showing, on an enlarged scale, a part of a valve device 40D according to a fifth embodiment of the present invention.
- the valve device 40D is similar to the valve device 40C of the fourth embodiment, and only different points will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.
- a valve hole 98D is formed in the seat block 44D so as to penetrate the seat block body 97D and the pressure reducing valve seat forming portion 100D along the axis L1.
- the valve hole portion 108D forming the valve hole 98D is formed such that the opening end on the pressure reducing valve side (hereinafter, “pressure reducing valve side opening end 122”) can be fitted with the pressure reducing valve valve piece 79D.
- Part of the pressure reducing valve element piece 79D is fittable to the pressure reducing valve side opening end 122, is formed in a frustoconical shape protruding in the other axial direction X2, and is fitted to the valve hole 108D.
- the radially outer peripheral surface portion 123 is formed so as to be in contact with the entire circumference of the pressure reducing valve side opening end portion 122 in the circumferential direction.
- the pressure reducing valve valve element piece 79D is fitted in the valve hole 108D, and closes the valve hole 98D in a state where the radially outer peripheral surface portion 123 is in contact with, that is, seats on, the pressure reducing valve side opening end 122.
- the pressure reducing valve valve element piece 79D also separates the force of the valve hole portion 108D, that is, opens the valve hole 98D in a state where the radial outer peripheral surface portion 123 is separated from the pressure reducing valve side opening end portion 122, and the pressure reducing valve side opening end portion 122 is opened. Together, they form orifice 102D.
- the opening of the orifice 102D thus formed is adjusted by sliding the piston 46 so that the fluid at the primary pressure is reduced to the secondary pressure through the orifice 102D.
- the pressure reducing valve valve element piece 79D is not limited to a truncated conical shape, and the side surface thereof is depressurized in a state in which it is fitted into the valve hole portion 108D which may be substantially annular extending in the axial direction L1. It is sufficient that the valve hole 98D can be closed over the entire circumference of the valve-side opening end portion 122 to close the valve hole 98D.
- a groove that is recessed inward in the radial direction and extends over the entire circumference is formed in the outer peripheral surface of the seat block body 97D, and a seal member 103 is provided in the groove.
- the pressure reducing valve element piece 79D radially presses the pressure reducing valve side opening end 122, the adhesion between the pressure reducing valve element piece 79D and the pressure reducing valve side opening end 122 is improved.
- the valve passage 107 can be closed with a high height, that is, the shielding effect is high.
- the pressure reducing valve valve element piece 79D and the pressure reducing valve side opening end 122 close the valve passage 107 in a direction perpendicular to the fluid flow, thereby In addition, the shielding effect is enhanced.
- the seal member 103 on the seat block body 97D the seal can be reliably achieved together with the ridges 115.
- FIG. 7 is an enlarged sectional view showing a part of a valve device 40E according to a sixth embodiment of the present invention.
- the valve device 40E is similar to the valve device 40C of the fourth embodiment, and only different points will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.
- the third on-off valve housing portion 49c (FIG. 2) is not formed, and the outer peripheral surface portion 116 of the seat block main body 97E can be screwed to the step 93E of the seat block holding portion 92E. It is.
- a hexagonal hole for screwing the seat block body 97E to the step 93E is formed at one axial end of the valve hole 108E.
- the pressure reducing valve sheet forming member 100C is connected to the seat block body 97E by screwing the seat block body 97E, which does not form a hexagonal gripping portion on the outer periphery of the seat block 44E, to the step 93E.
- the seat block 44E can be fixed to the seat block housing 43E by being sandwiched between the holding portions 92E. In this way, the seat block 44E can be fixed to the nodging 104 by an easy operation simply by screwing the seat block body 97E to the step 93E, and the seat block is positioned with high positional accuracy to the housing. It can be fixed.
- FIG. 8 is an enlarged sectional view showing a part of a valve device 40 F according to a seventh embodiment of the present embodiment.
- the valve device 40F is similar to the valve device 40C of the fourth embodiment, and only different points will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.
- the third on-off valve housing portion 49c (FIG. 2) is not formed, and the other axial end portion 109F of the step portion 93F of the seat block holding portion 92F is formed by squeezing.
- a plurality of radially inwardly protruding portions 110 are formed at appropriate circumferential intervals.
- the squeezing portion 110 With the seat block 44C mounted on the seat block holding portion 92F, the squeezing portion 110 is deformed, and the seat block body 97C is fixed by the squeezing portion 110. As a result, the seat block body 97C fitted into the step 93F is fixed, and the pressure reducing valve sheet forming member 100C can be fixed to the seat block holding portion 92F. That is, the seat block 100C can be fixed to the housing 104. Thus, by caulking and deforming a part of the housing 104, the seat block 44C is attached to the housing 104. It can be fixed easily and with high positional accuracy.
- FIG. 9 is an enlarged sectional view showing a part of a valve device 40G according to an eighth embodiment of the present invention.
- the valve device 40G is similar to the valve device 40C of the fourth embodiment, and only different points will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.
- the seat block 44G includes a seat block body 97G, an on-off valve seat forming member 99, and a pressure reducing valve seat forming member 100G.
- the seat block body 97G is formed in a cylindrical shape, and is configured to be able to fit into the step 93 of the seat block holding portion 92.
- a groove that is recessed in a substantially annular shape in the axial direction in which the valve opening / closing seat forming member 99 can be mounted is formed at one axial end.
- an annular hole 118 which is substantially annular and concave in the axial direction and in which the seal member 117 can be mounted is formed around the axis L1.
- a seal member 117 is attached to the annular hole portion 118, and sealing is achieved in a state where the seat block body 97G and the pressure reducing valve sheet forming member 100G are in contact with each other.
- the pressure reducing valve sheet forming member 100G is a substantially cylindrical member, and has a flange portion 113G that protrudes radially outward and extends all around in the circumferential direction at one end in the axial direction.
- the pressure reducing valve sheet forming member 100G is formed so that the remaining portion 120 excluding the flange portion 113G can be fitted to the remaining portion 121 excluding the step portion 93 of the seat block holding portion 92.
- the remaining portion 121 of the sheet block holding portion 92 has a concave portion formed in the outer peripheral surface portion to extend inward in the radial direction and extend over the entire circumference in the circumferential direction.
- a seal member 119 is mounted in the recess, and sealing is achieved by the seal member 119 in a state where the remaining portion 120 of the flange portion 113G is fitted to the remaining portion 121 of the seat block holding portion 92 except for the step portion 93.
- the remaining portion 120 of the pressure reducing valve seat forming member 100G is fitted to the remaining portion 121 of the seat block holding portion, and the seat block body 97G is fitted to the step portion 93.
- the seat block body 97G fitted in this way is pressed by the on-off valve housing 49 in the same manner as in the fourth embodiment, so that the flange portion 113G of the pressure reducing valve sheet forming member 100G is connected to the seat block body 97G and the seat. It is sandwiched between the housing 43G for block.
- the pressure reducing valve sheet forming member 100G can be easily fixed. That is, the seat block 44G can be easily configured.
- FIG. 10 is an enlarged cross-sectional view showing a part of a valve device 40H according to a ninth embodiment of the present invention.
- the valve device 40H is similar to the valve device 40G of the eighth embodiment, and only different points will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.
- the third on-off valve housing portion 49c (FIG. 2) is not formed, and the outer peripheral surface portion 116H of the seat block main body 97H can be screwed to the step 93H of the seat block holding portion 92H. .
- a hexagonal hole for screwing the seat block body 97H to the step 93H is formed at one axial end of the valve hole 108H.
- the seat block body 97H which does not form a hexagonal grip on the outer periphery of the seat block 44H, is screwed onto the step 93H, and the seat block body 97H is fixed to the seat block holding portion 92H. be able to.
- the seat block 44H can be fixed to the nosing 104 by an easy operation simply by screwing the seat block body 97H to the seat block holding portion 92H, and the seat block 44H is positioned with high positional accuracy and the housing is positioned. It can be fixed to 104.
- FIG. 11 is an enlarged sectional view showing a part of a valve device 40J according to a tenth embodiment of the present embodiment.
- the valve device 40J is similar to the valve device 40G of the eighth embodiment, and only different points will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.
- the third on-off valve housing portion 49c (FIG. 2) is not formed, and the other axial end 109 of the step portion 93J of the seat block holding portion 92J is formed by squeezing.
- a plurality of radially inwardly protruding portions 110 are formed at appropriate circumferential intervals.
- the squeezing portion 110 With the seat block 44G mounted on the seat block holding portion 92J, the squeezing portion 110 is deformed, and the seat block body 97G is fixed by the squeezing portion 110.
- the seat block main body 97G fitted to the step portion 93J is fixed, and the seat block 44G can be fixed to the seat block holding portion 92J, that is, it can be fixed to the seat block housing 43J.
- the seat block 4J can be easily fixed to the nodging 104, and can be fixed with high positional accuracy.
- valve device 40 of the present embodiment only the pressure reducing valve 48 and the on-off valve 68 are formed.
- the present invention is not necessarily limited to the combination of the pressure reducing valve 48 and the on-off valve 68.
- two open / close valves may be provided, or two pressure reducing valves may be provided.
- the valve hole 98 is formed on a straight line, and the pressure reducing valve portion 42 and the opening / closing valve portion 41 are provided so as to face each other.
- the present invention is not limited to this.
- the valve hole 98 may be formed in an L shape, and the axis of the pressure reducing valve portion 42 and the axis of the on-off valve portion 41 may be arranged so as to be perpendicular to each other.
- the valve passage 107 is formed by the two-port valve passage 107, but may be a valve passage having three or more ports. In the case of a three-port valve passage, for example, it can be realized by forming the valve hole 98 in a T shape.
- the structure of the on-off valve seat forming member 99 may be configured as follows.
- the on-off valve sheet forming member 99 may be arranged so as to face the pressure reducing valve section 42.
- the pressure reducing valve sheet forming member 100 may be provided so as to face the opening / closing valve portion 41. In this case, the same effect as that of the present embodiment can be obtained.
- valve device according to the present invention can be used in a fluid pressure device or the like that requires a valve device with a simplified structure while reducing man-hours.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Lift Valve (AREA)
- Control Of Fluid Pressure (AREA)
- Magnetically Actuated Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/629,738 US7562675B2 (en) | 2004-06-17 | 2005-04-26 | Valve device |
| EP05737254.2A EP1790889B1 (en) | 2004-06-17 | 2005-04-26 | Valve gear |
| CA 2570523 CA2570523C (en) | 2004-06-17 | 2005-04-26 | Valve device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004180259A JP3930872B2 (ja) | 2004-06-17 | 2004-06-17 | 弁装置 |
| JP2004-180259 | 2004-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005124203A1 true WO2005124203A1 (ja) | 2005-12-29 |
Family
ID=35509763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/007899 Ceased WO2005124203A1 (ja) | 2004-06-17 | 2005-04-26 | 弁装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7562675B2 (ja) |
| EP (1) | EP1790889B1 (ja) |
| JP (1) | JP3930872B2 (ja) |
| CA (1) | CA2570523C (ja) |
| WO (1) | WO2005124203A1 (ja) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| FR345331A (fr) | 1903-12-18 | 1904-11-28 | Societe J. Hopkinson & C° Limited | Soupape de retenue |
| JPS5465831A (en) * | 1977-11-03 | 1979-05-26 | Bascom Frank Buchanan | Steam and fuel oil control and cleaning valve |
| JPS5635868A (en) * | 1979-08-30 | 1981-04-08 | Wabco Steuerungstech | Valve rod of doubleeseat valve |
| JPS60192172A (ja) * | 1984-03-13 | 1985-09-30 | Toshiba Corp | 開閉弁 |
| JPS62146060U (ja) * | 1986-03-07 | 1987-09-14 | ||
| JPH0893953A (ja) * | 1994-07-28 | 1996-04-12 | Aisin Seiki Co Ltd | 三方向電磁弁 |
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| US5863023A (en) | 1996-02-21 | 1999-01-26 | Aeroquip Corporation | Valved coupling for ultra high purtiy gas distribution system |
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| US4146056A (en) * | 1976-11-11 | 1979-03-27 | Bascom Frank Buchanan | Steam and fuel oil control and purge valve |
| DE8429994U1 (de) * | 1984-10-11 | 1985-01-10 | Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart | Schieberventil mit unterdruck-stellmotor |
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2004
- 2004-06-17 JP JP2004180259A patent/JP3930872B2/ja not_active Expired - Fee Related
-
2005
- 2005-04-26 EP EP05737254.2A patent/EP1790889B1/en not_active Expired - Lifetime
- 2005-04-26 US US11/629,738 patent/US7562675B2/en not_active Expired - Fee Related
- 2005-04-26 CA CA 2570523 patent/CA2570523C/en not_active Expired - Lifetime
- 2005-04-26 WO PCT/JP2005/007899 patent/WO2005124203A1/ja not_active Ceased
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| FR345331A (fr) | 1903-12-18 | 1904-11-28 | Societe J. Hopkinson & C° Limited | Soupape de retenue |
| JPS5465831A (en) * | 1977-11-03 | 1979-05-26 | Bascom Frank Buchanan | Steam and fuel oil control and cleaning valve |
| JPS5635868A (en) * | 1979-08-30 | 1981-04-08 | Wabco Steuerungstech | Valve rod of doubleeseat valve |
| JPS60192172A (ja) * | 1984-03-13 | 1985-09-30 | Toshiba Corp | 開閉弁 |
| JPS62146060U (ja) * | 1986-03-07 | 1987-09-14 | ||
| JPH0893953A (ja) * | 1994-07-28 | 1996-04-12 | Aisin Seiki Co Ltd | 三方向電磁弁 |
| JPH09217677A (ja) * | 1996-02-14 | 1997-08-19 | Y B M:Kk | プランジャポンプ用バルブシート |
| US5863023A (en) | 1996-02-21 | 1999-01-26 | Aeroquip Corporation | Valved coupling for ultra high purtiy gas distribution system |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP1790889A4 (en) | 2010-04-21 |
| CA2570523A1 (en) | 2005-12-29 |
| EP1790889B1 (en) | 2015-12-23 |
| JP3930872B2 (ja) | 2007-06-13 |
| US20070261746A1 (en) | 2007-11-15 |
| CA2570523C (en) | 2009-09-01 |
| EP1790889A1 (en) | 2007-05-30 |
| US7562675B2 (en) | 2009-07-21 |
| JP2006002861A (ja) | 2006-01-05 |
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