WO1982003259A1 - Soupape de retenue a ressort - Google Patents

Soupape de retenue a ressort Download PDF

Info

Publication number
WO1982003259A1
WO1982003259A1 PCT/US1982/000326 US8200326W WO8203259A1 WO 1982003259 A1 WO1982003259 A1 WO 1982003259A1 US 8200326 W US8200326 W US 8200326W WO 8203259 A1 WO8203259 A1 WO 8203259A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
spring
valve member
set forth
outlet end
Prior art date
Application number
PCT/US1982/000326
Other languages
English (en)
Inventor
Devices Inc Control
Michael J Purvis
Original Assignee
Devices Inc Control
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 Devices Inc Control filed Critical Devices Inc Control
Priority to DE19823237446 priority Critical patent/DE3237446A1/de
Publication of WO1982003259A1 publication Critical patent/WO1982003259A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • F16K15/028—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve

Definitions

  • This invention relates to valves, and more par ⁇ ticularly to spring-loaded air valves.
  • the invention is concerned, in one aspect, with a check valve which " in use is connected between an air compressor and a storage tank for compressed air received from the compressor to check the return of air from the tank back to the compressor. Commonly, the outlet end of the check valve is threaded into the inlet of the tank, an air line being interconnected between the air com ⁇ pressor and the valve inlet.
  • a valve of this invention is especially suited to this type of use, that is, where the outlet end of the valve is threaded into an inlet of a tank.
  • the invention is concerned with a safety valve for venting air from means holding air under pressure when the pressure rises above a pre ⁇ determined level.
  • an improved spring-loaded valve e.g., a check valve or a safety valve, of simpli ⁇ fied and economical construction; the provision of such a valve which has a minimum number of parts and which is easy to assemble; the provision of such a check valve whose valve member and its seat are readily inspected without disassembly of the valve; the provision of such a
  • a valve of this invention comprises a valve body having a passage extending there ⁇ through to an outlet end.
  • a coil spring is secured to the outside of the valve body at its outlet end and ex ⁇ tends endwise from the body.
  • a valve member is disposed within the spring and is adapted to close the outlet end of the passage, there being means at the downstream end of the spring for engaging the valve member and confining it within the spring.
  • the spring is in tension and the stated means for engaging and confining the spring normally seats the valve member against the valve body to close the outlet end of the passage, with the valve member being adapted to open against the bias of the spring.
  • Fig. 1 is a longitudinal section of a check valve of the present invention installed in a tapped hole such as the inlet of a compressed air tank, shown with the valve closed;
  • Fig. 2 is a section similar to Fig. 1 showing the Fig. 1 valve open;
  • Fig. 3 is an end view of the outlet end of the Fig. 1 valve
  • Fig. 4 is a longitudinal section of a safety valve of the present invention, showing the valve closed
  • Fig. 5 is a transverse section on line 5—5 of Fig. 4.
  • Corresponding reference characters indicate corresponding parts throughout the several views of the drawings.
  • a check valve of this invention designated in its entirety by the numeral 1, is shown installed in a tapped hole such as the threaded inlet 3 in the wall 5 of a storage tank, such as a storage tank for compressed air supplied from an air compressor via the check valve 1.
  • the in- terior surface of the storage tank wall is designated 7 and the exterior surface is designated 9.
  • the check valve 1 comprises an e- longate valve body 11 of metal, such as brass, having an axial passage 13 extending therethrough from its inlet end 15 to its outlet end 17.
  • the inlet end of the body has external threads 19 for connection of a line from an air compressor, for example, and has a hexagonal head 21 downstream of threads 19 which will accept a wrench.
  • the body Downstream of the hexagonal head, the body has an externally-threaded cylindric portion or shank 23 for threading into inlet 3 of the storage tank.
  • the valve body At its outlet end, downstream of threaded cylindric portion 23, the valve body has a reduced-diameter cylindric extension 25 of lesser diameter than inlet 3.
  • the extension has a relatively coarse external screw thread 27 providing a circumferential groove.
  • a coil spring 29 of cylindrical form is secured to the outside of the reduced-diameter extension 25 of the valve body and extends endwise from the body (down ⁇ stream therefrom) coaxial with the body.
  • the diameter of the spring is less than that of the storage tank inlet 3 and large enough snugly to fit over extension 25 and interengage with its screw thread.27.
  • the diameter of the spring wire forming the spring is relatively small, whereby the coils of the spring are relatively deeply engaged in the thread 27 firmly to secure the spring to the valve body.
  • the spring has an inwardly spiraling convolution 31 at its downstream end generally in a transverse plane of the spring forming a radially inwardly extending portion of the spring which partially closes its outer (downstream) end.
  • a valve member 33 preferably though not neces ⁇ sarily of a suitable plastic, such as glass-fiber-filled polytetrafluoroethylene, for example, is disposed concen ⁇ trically within the spring between the end 17 of the ex ⁇ tension 25 of the valve body, which constitutes the valve seat of the check valve, and the inwardly spiraling convolution 31 of the spring, being confined within the spring by the convolution.
  • the valve member is shown in the drawings as a relatively thick disc, but members of
  • ⁇ 0s_l other shapes may be used, for example a ball.
  • the spring is of such length that, as assembled with the valve body with the valve member within the spring between the seat 17 and the spring end convolution 31, the spring is placed in tension by the presence of the valve member. Convolution 31 engages the outside (the downstream side) of the valve member and, as shown in Fig. 1, normally seats the valve member against the outlet end or valve seat 17 of the valve body, closing the outlet end of passage 13. As shown in Fig. 2, the valve member 33 opens against the bias of the spring when the pressure upstream of the valve member (within passge 13) exceeds the pressure downstream of the valve member by an amount which exceeds the spring tension.
  • the check valve of this invention as described above is inexpensive and easy to assemble, having a mini ⁇ mum number of parts (three parts - the body, spring and valve member) . Because the moving parts of the valve (spring 29 and valve member 33) are not enclosed by the valve body, they are readily inspected without disas ⁇ sembly of the valve.
  • the valve is especially suited to uses in which the outlet end of the valve is threaded into an inlet in a storage tank or other enclosed space, the moving parts being protected (by being enclosed in the tank) against dirt and damage. It also appears that the valve is characterized by lower pressure losses thereacross in comparison with prior valves having a spring retainer.
  • a safety valve of this invention designated in its en ⁇ tirety by the numeral 35, comprises an elongate tubular valve body 37 of metal, such as brass, having an axial passage 39 therethrough from its inlet end 41 to its outlet end 43.
  • the body has a hexagonal head 45 inter ⁇ mediate its ends for application of a wrench to turn the valve.
  • the body Upstream of the head, the body has a first externally-threaded portion or shank 47.
  • the body Downstream of the head, the body has a second cylindric portion 49 having an annular external flange 51 spaced closely adjacent the head and external threads 53 downstream of the flange.
  • cylindric portion 49 is formed with a circular internal recess 55 having a valve seat 57 projecting downstream within the recess.
  • the downstream end of seat 57 is upstream of the downstream end of cylindric portion 49.
  • a coil spring 59 of cylindrical form is threaded on the screw thread 53 on the outside of cy ⁇ lindric portion 49 and extends endwise (downstream) therefrom coaxial with the body.
  • the diameter of the spring wire forming the spring is relatively small, whereby the coils of the spring are relatively deeply engaged in the thread 53. As shown in Fig.
  • valve member 63 is comprised of a valve disc 65 having a central reduced-diameter cylindric portion 67 on its upstream side engageable in recess 55 on the outlet end of the valve body. Cylindric portion 67 has a central circular recess 69 in which is secured a disc ⁇ shaped resilient seal 71 (of a suitable elastomeric material) engageable with valve seat 57.
  • the valve member has a stem 73 projecting downstream from valve disc 65 through the spring's end convolution 61. Stem 73 has a transverse hole 75 at its downstream end through which a ring pull 77 is looped.
  • a cover 79 is provided for the downstream end of valve 35 in the form of a cylindrical cap surrounding and spaced from cylindrical portion 49 of valve body 37, spring 59 and valve disc 65. ' The cover is secured at its upstream end to the valve body by crimping its rim 81 under flange 51 between the flange and hexagonal head 45.
  • the cover has a number of fluid (air) exit openings or ports 83 (e.g., four such ports) through its side wall and has a central opening 85 in its downstream end through which stem 73 projects.
  • the safety valve 35 is threaded into a tapped hole in communication with a pressurized space and operates to limit the pressure of fluid within the space.
  • spring 59 normally biases valve disc 65 against valve seat 57.
  • Valve member 63 opens against the bias of spring 59 when the pressure upstream of the valve disc exceeds atmospheric pressure (the pressure downstream of the valve disc) by an amount which exceeds the spring force. Pressurized fluid then escapes past the valve disc and through ports 83.
  • the spring 59 is initially threaded on the screwthread 53, before application of the cover or cap 79, to the point where the bias of the spring on the valve member 63 corresponds to the desired blow-off pressure. The spring holds itself in its
  • the valve may be manually opened at any time by pulling on the ring 77.

Abstract

La presente invention se rapporte au domaine des soupapes de retenue a ressort. Les soupapes de retenue de l'art anterieur se composent d'un grand nombre de parties, ce qui complique les etapes d'assemblage en rendant plus difficile le controle des soupapes de retenue. La presente invention decrit une soupape de retenue possedant un nombre minimum de parties, qui est facile a assembler et dont l'organe et le siege de soupape peuvent etre controles soit qu'il soit necessaire de demonter la soupape. La soupape de retenue comprend un ressort en spirale (29) qui ne sert pas uniquement a retenir le clapet (33) contre son siege (25) mais aussi a retenir l'organe de soupape monte dans la soupape.
PCT/US1982/000326 1981-03-23 1982-03-15 Soupape de retenue a ressort WO1982003259A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823237446 DE3237446A1 (de) 1981-03-23 1982-03-15 Federbelastetes ventil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24660081A 1981-03-23 1981-03-23
US246600810323 1981-03-23

Publications (1)

Publication Number Publication Date
WO1982003259A1 true WO1982003259A1 (fr) 1982-09-30

Family

ID=22931348

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1982/000326 WO1982003259A1 (fr) 1981-03-23 1982-03-15 Soupape de retenue a ressort

Country Status (6)

Country Link
JP (1) JPS58500373A (fr)
CA (1) CA1187379A (fr)
FR (1) FR2502282A1 (fr)
GB (1) GB2107832B (fr)
IT (1) IT1150710B (fr)
WO (1) WO1982003259A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606116A1 (fr) * 1986-11-05 1988-05-06 Puska Compresores Sa Dispositif perfectionne de clapet anti-retour pour fluides
EP3581409A1 (fr) * 2018-06-15 2019-12-18 WABCO Europe BVBA Soupape de régulation d'air, dispositif de soupape de régulation d'air, système de suspension de cabine et véhicule à moteur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2249971A (en) * 1939-03-31 1941-07-22 Gen Motors Corp Cooling system pressure relief device
US3077206A (en) * 1959-03-04 1963-02-12 Gen Motors Corp Air suspension control apparatus
US3335750A (en) * 1964-10-07 1967-08-15 Hugh G Kepner Ball check valve
US3702141A (en) * 1971-02-22 1972-11-07 Dresser Ind Gas type safety valve
US4027691A (en) * 1972-01-08 1977-06-07 N.V. Spiro Research Device for venting and aerating closed circulatory water flow systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2249971A (en) * 1939-03-31 1941-07-22 Gen Motors Corp Cooling system pressure relief device
US3077206A (en) * 1959-03-04 1963-02-12 Gen Motors Corp Air suspension control apparatus
US3335750A (en) * 1964-10-07 1967-08-15 Hugh G Kepner Ball check valve
US3702141A (en) * 1971-02-22 1972-11-07 Dresser Ind Gas type safety valve
US4027691A (en) * 1972-01-08 1977-06-07 N.V. Spiro Research Device for venting and aerating closed circulatory water flow systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606116A1 (fr) * 1986-11-05 1988-05-06 Puska Compresores Sa Dispositif perfectionne de clapet anti-retour pour fluides
EP3581409A1 (fr) * 2018-06-15 2019-12-18 WABCO Europe BVBA Soupape de régulation d'air, dispositif de soupape de régulation d'air, système de suspension de cabine et véhicule à moteur
US10995878B2 (en) 2018-06-15 2021-05-04 Wabco Europe Bvba Air control valve and device for a cabin suspension system of a motor vehicle

Also Published As

Publication number Publication date
GB2107832A (en) 1983-05-05
IT8220277A0 (it) 1982-03-19
FR2502282A1 (fr) 1982-09-24
CA1187379A (fr) 1985-05-21
JPS58500373A (ja) 1983-03-10
GB2107832B (en) 1985-04-17
IT1150710B (it) 1986-12-17
FR2502282B3 (fr) 1984-12-07

Similar Documents

Publication Publication Date Title
US5107890A (en) Ball check valve
US6866062B2 (en) Check valve
US4368756A (en) Check valve
US3331389A (en) Safety cut-off valve
US6123101A (en) Spring body excess flow valve
US3548869A (en) Soft seated valve
US4612962A (en) Spring-loaded valve
US6971405B2 (en) Check valve for fuel pump
US6945510B2 (en) Solenoid valve for use in micro-gravity
US4616677A (en) Manifold fitting for a compressed air tank
US4314582A (en) Combined pressure-regulator and manual shut-off valve
US6827096B1 (en) Relief valve
CA2220170A1 (fr) Soupape de surete, elements constitutifs de la soupape et methodes de fabrication
US4681139A (en) Elastomer ball check valve
US20030037822A1 (en) Check valve for fuel pump
WO1982003259A1 (fr) Soupape de retenue a ressort
EP1455084B1 (fr) Clapet de non retour pour une pompe à combustible
US5921468A (en) Enhanced life cycle atomizing nozzle
US3336936A (en) Refrigerator service valve
US4109221A (en) Retaining means for a solenoid assembly
US5492305A (en) Connector assembly for connecting a source of fluid with a container to be filled
US4827975A (en) Valve
US6488049B2 (en) Super sensitive, full flow, adjustable pressure valve
US5099876A (en) Quick-action shut-off valve
WO2006009757A1 (fr) Vanne pour cartouche pressurisee

Legal Events

Date Code Title Description
AK Designated states

Designated state(s): DE GB JP

RET De translation (de og part 6b)

Ref document number: 3237446

Country of ref document: DE

Date of ref document: 19830324

WWE Wipo information: entry into national phase

Ref document number: 3237446

Country of ref document: DE