EP0432082A1 - Druckempfindliches Ventil - Google Patents

Druckempfindliches Ventil Download PDF

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Publication number
EP0432082A1
EP0432082A1 EP90610073A EP90610073A EP0432082A1 EP 0432082 A1 EP0432082 A1 EP 0432082A1 EP 90610073 A EP90610073 A EP 90610073A EP 90610073 A EP90610073 A EP 90610073A EP 0432082 A1 EP0432082 A1 EP 0432082A1
Authority
EP
European Patent Office
Prior art keywords
valve
spring
seat
nozzle
flow path
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.)
Granted
Application number
EP90610073A
Other languages
English (en)
French (fr)
Other versions
EP0432082B1 (de
Inventor
Allan Kenneth Palsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0432082A1 publication Critical patent/EP0432082A1/de
Application granted granted Critical
Publication of EP0432082B1 publication Critical patent/EP0432082B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
    • B05B1/323—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve member being actuated by the pressure of the fluid to be sprayed

Definitions

  • the present invention relates to a valve of the kind, having a cylindrical valve housing with a rectlinear continuous flow path, a conical valve seat disposed on the valve housing concentric to the flow path and a discshaped valve body with at least a stem and a closure member.
  • the valve body is arranged fluid tight and moveable in the valve housing and actuated by a spring device, which further end makes contact to a spring seat.
  • the valve according to the invention may be employed for controlling the flow of a liquid or gaseous medium from a container or in a pipe, wherein the medium is contained.
  • Valves for this service are usually globe valves with a valve body fastened to a stem, which stem being actuated by the force of an actuator spring arranged externally to the valve housing.
  • the valve closure member of such a valve is lifted from the valve seat when the pressure in the medium to be controlled extends a predetermined limit where the spring force is defeated, which otherwise forces the closure member against the seat.
  • the medium flow through the known globe valves is caused to take a non-linear path through the seat and along the closure member, which results in a large pressure drop.
  • a valve with a linear flow path is the known gate valve. This valve is opened when the gate is moved by the stem into the yoke or top section of the valve.
  • the yoke or top section is positioned externally to the valve housing. Neither this kind of valve provides a compact valve assembly, having all components arranged within the valve housing.
  • a compact seat valve with a substantially rectlinear continuous flow path is mentioned in DK-Patent Publication No. 4345/75, wherein a circular valve seat is arranged within the valve housing concentric to the flow path.
  • a valve ball which works together with the seat is spring loaded by a spiral spring.
  • One end of the spring makes contact to a spring seat provided with a central bore.
  • the opposite end of the spring which actuates the valve ball, makes contact to a further spring seat having in its circumference grooves parallel to the axis of the spring seat.
  • the flow path is thereby obtained through the grooves and the central bore of the spring seat.
  • the valve is suitable as a check valve for a suction flask.
  • a disadvantage of the mentioned valve is the restricted path through the grooves of the spring seat and the arrangement of the spring within the flow path. This is particular disadvantageous, when the valve is used to control flow of highly viscous media or flowable solids.
  • the object of the present invention is to provide a valve of that kind, which has a rectlinear continuous flow path through the valve housing, and which is useful to control a stream of highly viscous or flowable media without the disadvantages of the known valves.
  • the present invention comprises a valve of the introductory mentioned kind, which valve is characterized in that the stem is coaxially to the axis of the flow path arranged on the valve body, which concentric to the axis of the flow path is provided with a central bore and with an axially directed cylindrical nozzle opposite to the stem, the nozzle surrounds concentric and moveable in fluid tight manner a cylindrical nozzle guide arranged on the spring seat around an inlet section, the inlet section is in form of a central bore through the spring seat and has a cross sectional area, which is less than the cross sectional area of the valve body, the spring device is concentrically arranged around the axially directed nozzle.
  • the flow path through the valve according to the invention is thus provided by the central bore through the spring seat, the central bore through the valve body together with the axially directed nozzle, and by the conical seat, which concentric to the axis of the flow path is arranged on the valve housing.
  • the spring device is thereby disposed outside the flow path, which is advantageous, in particular when the valve is flushed by viscous liquids or particulate materials.
  • a particular feature of the valve according to the inventor is the difference between the cross sectional areas of the inlet section and the disc-shaped valve body, which is exposed to the pressure in the medium controlled by the valve.
  • the pressure exerted by a fluid in closed containers is as known the same all over the boundaries of a container.
  • valve disc By providing the valve disc with a larger area than the area of the inlet section a large spring force exerted by the spring device can act on the closure member in order to provide an air tight closure of the valve, which is particular advantageously, when the medium to be controlled comprises air sensible or air hardening components, such as pastes or adhesives.
  • the pressure in the medium can be relatively low in order to open the valve, which is further desirable, when the medium is released from a container by manual pressure on the container.
  • the distance between the valve body and the spring seat can be regulated continuously by arranging the spring seat displaceable in the valve housing.
  • the spring seat is thereby formed as a cylinder with projections on the cylinder wall, preferably a thread, which acts together with a compatible projection on the inner wall of the valve housing.
  • the valve closure member is provided with an auxillary check valve.
  • the check valve may be of the kind comprising a plug with peripheral grooves parallel to the axis of the plug, thereby providing a flow path from the inside of the main valve housing to the outside of the valve.
  • the plug may be disposed in a bore through the closure member and has on the side being outside the main valve housing a bonnet or a thickening, which prevents the plug from sliding through the bore.
  • the plug On the side being inside the housing, the plug is provided with a cone or disc-shaped body, which upon pressure in the main valve is forced tightly against the closure member. At vacuum or under pressure inside the valve housing, the pressure is equalized by leaking air or a medium outside the valve through the grooves in the plug and into the space defined by the main valve body and valve seat.
  • valve according to the invention may further advantageously be used as exit nozzle in extruders.
  • the valve seat may be provided with e.g. a cylindrical nozzle piece.
  • valve comprises a cylindrical valve housing 1, which in its upper part is provided with a cone-shaped valve seat 3.
  • Valve seat 3 has a circular opening 3a concentric to the axis of flow path 2 through the valve. Opening 3a constitutes the outlet of the valve.
  • a valve closure member 4, which acts together with valve seat 3, has in the shown embodiment a conical shape. Other shapes, such as a hemispherical or a lentoide shape, may be suitable as well.
  • Closure member 4 may as mentioned above be provided with an inlet valve 40 (FIG. 2).
  • closure member 4 has in such an embodiment built in a cylindrical plug 41, which slides in a central bore 42 through closure member 4.
  • Plug 41 is provided with peripheral grooves 41a parallel to the axis of the plug.
  • On the opposite side plug 41 has a conical body 41c, which acts together with an equivalent curving 4b on the downside of closure member 4.
  • Closure member 4 (FIG. 1) is connected via a valve stem 6 to a valve body 8, which consists of a valve disc 8a and an axial directed nozzle 8b around a central bore 8c through body 8.
  • valve disc 8a makes fluid tight contact to the inner wall 1a of housing 1.
  • Body 8 is at its downside loaded with a spiral spring 10, which further end makes contact to a cylindrical spring seat 12.
  • Spring seat 12 is in the shown embodiment formed as screw plunger with a thread 12a, which acts together with a compatibel thread 1b at the inner wall 1a of the valve housing.
  • valve As mentioned hereinbefore it is possible to control in such an embodiment of the valve the flow through the valve by varying the distance between spring seat 12 and the closure member 8.
  • the valve may be closed constantly, by screwing seat 12 into the valve housing 1, until seat 12 hits nozzle 8b, so that any movement of body 8 is prevented.
  • Spring seat 12 is further provided with a central bore 12c, and an axial disposed guide nozzle 12b, which is surrounded tightly slidding ny nozzle 8b.
  • Central bore 12c constitutes the valve inlet 11, through which the medium to be controlled flows into the valve flow path 2.
  • Flow path 2 is further constituted by central bore 12c and 8c through spring seat 12 and valve disc 8, and by guide nozzle 12b, nozzle 8b and the conical valve seat 3 with annular opening 3a.
  • valve is in its normal state closed and a medium flowing into the valve housing fills up the space between valve seat 3 and the upper side of valve body 8.
  • the body 8 is moved by a force directed against the upper side of valve disc 8a, which force is proportional to the medium pressure at inlet 11 and the area of disc 8a.
  • Body 8 is moved thereby towards spring seat 12 when this force overcomes the spring force of spring 10.
  • the flow path through opening 3a in the valve seat is then opened and the medium flows through the valve.
  • valve housing 1 may be provided with a thread allowing the valve to be screwed into a pipe or tube.
  • the central bore 12c through the spring seat 12 may be provided with a thread, a coupler or a spring lock by which the valve may be fastened to a container.

Landscapes

  • Lift Valve (AREA)
  • Closures For Containers (AREA)
  • Check Valves (AREA)
EP19900610073 1989-12-07 1990-12-06 Druckempfindliches Ventil Expired - Lifetime EP0432082B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK617289A DK162857C (da) 1989-12-07 1989-12-07 Trykfoelsom ventil, samt anvendelse af denne
DK6172/89 1989-12-07

Publications (2)

Publication Number Publication Date
EP0432082A1 true EP0432082A1 (de) 1991-06-12
EP0432082B1 EP0432082B1 (de) 1994-11-02

Family

ID=8147821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900610073 Expired - Lifetime EP0432082B1 (de) 1989-12-07 1990-12-06 Druckempfindliches Ventil

Country Status (3)

Country Link
EP (1) EP0432082B1 (de)
DE (1) DE69013863T2 (de)
DK (1) DK162857C (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0516996A1 (de) * 1991-06-01 1992-12-09 ERNO Raumfahrttechnik Gesellschaft mit beschränkter Haftung Vorrichtung zur Steuerung eines Flüssigkeitsstromes
FR2695832A1 (fr) * 1992-09-24 1994-03-25 Cerberus Guinard Dispositif d'extinction d'incendie dans une enceinte à buse d'insufflation d'un fluide.
FR2702664A1 (fr) * 1992-09-24 1994-09-23 Cerberus Guinard Dispositif d'extinction d'incendie dans une enceinte à buse d'insufflation d'un fluide.
JP2018167242A (ja) * 2017-03-30 2018-11-01 株式会社ミマキエンジニアリング 印刷装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2109397A (en) * 1935-06-13 1938-02-22 Henderson Douglas Closure for collapsible tubes and containers
FR825740A (fr) * 1936-08-18 1938-03-11 Dispositif de fermeture automatique d'une capacité tubulaire déformable contenant une masse fluide
DE2703095A1 (de) * 1977-01-24 1978-07-27 Iliades Charalambos Tubenverschlussautomatik

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2109397A (en) * 1935-06-13 1938-02-22 Henderson Douglas Closure for collapsible tubes and containers
FR825740A (fr) * 1936-08-18 1938-03-11 Dispositif de fermeture automatique d'une capacité tubulaire déformable contenant une masse fluide
DE2703095A1 (de) * 1977-01-24 1978-07-27 Iliades Charalambos Tubenverschlussautomatik
DE2715787A1 (de) * 1977-01-24 1978-10-12 Iliades Charalambos Tubenverschlussautomatik

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0516996A1 (de) * 1991-06-01 1992-12-09 ERNO Raumfahrttechnik Gesellschaft mit beschränkter Haftung Vorrichtung zur Steuerung eines Flüssigkeitsstromes
FR2695832A1 (fr) * 1992-09-24 1994-03-25 Cerberus Guinard Dispositif d'extinction d'incendie dans une enceinte à buse d'insufflation d'un fluide.
FR2702664A1 (fr) * 1992-09-24 1994-09-23 Cerberus Guinard Dispositif d'extinction d'incendie dans une enceinte à buse d'insufflation d'un fluide.
JP2018167242A (ja) * 2017-03-30 2018-11-01 株式会社ミマキエンジニアリング 印刷装置

Also Published As

Publication number Publication date
DK617289A (da) 1991-06-08
DE69013863T2 (de) 1995-05-18
DK162857B (da) 1991-12-16
DK617289D0 (da) 1989-12-07
DE69013863D1 (de) 1994-12-08
EP0432082B1 (de) 1994-11-02
DK162857C (da) 1992-05-04

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