IL44764A - Fluid flow control valve - Google Patents

Fluid flow control valve

Info

Publication number
IL44764A
IL44764A IL44764A IL4476474A IL44764A IL 44764 A IL44764 A IL 44764A IL 44764 A IL44764 A IL 44764A IL 4476474 A IL4476474 A IL 4476474A IL 44764 A IL44764 A IL 44764A
Authority
IL
Israel
Prior art keywords
valve
outlet
pressure
area
chamber
Prior art date
Application number
IL44764A
Other versions
IL44764A0 (en
Original Assignee
Phoenix Valve Mfg Ltd
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 Phoenix Valve Mfg Ltd filed Critical Phoenix Valve Mfg Ltd
Publication of IL44764A0 publication Critical patent/IL44764A0/en
Publication of IL44764A publication Critical patent/IL44764A/en

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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/365—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7801—Balanced valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7808—Apertured reactor surface surrounds flow line

Claims (11)

44764
1. A fluid flow control valve comprising a casing, an inlet leading into said casing, a movable valve element in said casing, first and second means sealing between sa$¾ element and said casing, said means being spaced apart in the direction in which said element is capable of movement and, together with said casing and said element, bounding a pressure chamber into which said inlet leads, the valve element having a hollow interior and there being an outlet from said hollow interior of the valve element which outlet reduces the area of the valve element on which inlet pressure acts in one direction and which outlet opens into an outlet path leading to the exterior of the valve, said pressure chamber communicating with said outlet path by way of said outlet and said hollow interior, a valve closure member for closing-off said outlet, said movable valve element having a position in which said valve closure member closes said outlet to prevent flow from said hollow interior to said outlet path and being capable of movement from said position to establish communication between said hollow interior and said outlet path thereby to open the valve, and the area of the surfaces defining one end of said pressure chamber, on which area inlet pressure is effective, being different from the area of the surfaces defining the other end of said chamber and on which inlet pressure is effective, and the difference providing a differential area subjected to inlet pressure which, in use, reduces the out-of-balance effect resulting from reduction in inlet pressure subjected area arising from the provision of said outlet.
2. A valve as claimed in claim 1, Wherein each of said first and second means is constituted by a diaphragm having its inner" periphery L* secured to said element and it outer periphery to said casing. i.
3. A valv as claimed in claim 1 or 2, wherein said outle is constituted by a bore formed in said element an extending from said hollow interio in the direction in which the element is capable of movement.
4. A valve as claimed in claim 3, wherei said element includes diametrically opposed slots and wherein a fixed cross-member extends through the element by way of the slots, there being a valve closure member carried by said cross-member and co-operating with said outlet.
5. A valve as claimed in claim 1 or 2, wherein said element includes diametrically opposed slots and wherei a fixed cross-member extends through the element by way of the slots, said outlet being constituted by a passage in said cross-member and there being a valve closure member carried by said element for closing off communication between said passage and said hollow interior.
6. A valve as claimed In any one of the preceding claims wherei said difference in areas equals the area of said outlet so that said element is una fected by variations in inlet pressure.
7. A valve as claimed in any one of claims 1 to 5 wherein said difference in areas is more or less than said area of said outlet whereby a force derived from inlet pressure is exerted on said element which force varies with inlet pressure. 44764/2
8. A valve as claimed in any of the preceding claims wherei one face of said elemen is in communication with said outle so that the element is subjected to back pressur at said outlet and a further face of said element is subjected to a force opposing the force exerted thereon by the back pressure.
9. A valv as claimed in claim 8, and including a coil spring for exerting the opposing force.
10. A valve as claimed in any one of claims 1 to ?, and comprising spring means for exerting on said elemen a force tending to move it to the closed position, and a J chamber the pressure i which exerts a force tending to move the element to the open position, an inlet to said chamber, a valve for temporarily connecting this chamber to a source of pressure fluid, and a bleed passage from said chamber so that the pressure therein drops over a period of time.
11. * A luid flow control valve substantially as herein described wi h reference to any one of Ithe accompanying drawings. For the Applicants HOLD GOHN AND PARTNERS
IL44764A 1973-05-08 1974-05-03 Fluid flow control valve IL44764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA00733118A ZA733118B (en) 1973-05-08 1973-05-08 Fluid flow control valve

Publications (2)

Publication Number Publication Date
IL44764A0 IL44764A0 (en) 1974-07-31
IL44764A true IL44764A (en) 1976-12-31

Family

ID=25566299

Family Applications (1)

Application Number Title Priority Date Filing Date
IL44764A IL44764A (en) 1973-05-08 1974-05-03 Fluid flow control valve

Country Status (12)

Country Link
US (1) US3926211A (en)
JP (1) JPS5031431A (en)
BR (1) BR7403698D0 (en)
CA (1) CA999210A (en)
CH (1) CH586363A5 (en)
DE (1) DE2421600A1 (en)
ES (1) ES426059A1 (en)
FR (1) FR2229002B1 (en)
GB (1) GB1463873A (en)
IL (1) IL44764A (en)
IT (1) IT1012185B (en)
ZA (1) ZA733118B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396032A (en) * 1981-04-09 1983-08-02 Pittman Products, Inc. Safety underwater pressure regulator
US5534896A (en) * 1993-07-19 1996-07-09 Hewlett-Packard Company Tubeless ink-jet printer priming cap system and method
US5396918A (en) * 1993-11-18 1995-03-14 Agricultural Products, Inc. Water pressure regulator and method for regulating pressure through a valve
US5714991A (en) * 1995-03-03 1998-02-03 Hewlett-Packard Company Rotary priming system for inkjet printheads
US5921275A (en) * 1997-03-27 1999-07-13 Emerson Electric Co. Apparatus for reducing noise generated by the flow of water through a water valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US815912A (en) * 1905-07-19 1906-03-20 Arthur H Eddy Expansion-valve.
US973609A (en) * 1910-04-25 1910-10-25 John A Abrams Pressure-regulating valve for gas-burners.
US1978398A (en) * 1928-10-27 1934-10-30 Becker Alfred Curt Gas-pressure regulator
US2861587A (en) * 1955-11-25 1958-11-25 Westinghouse Air Brake Co Vent valve device
US3270757A (en) * 1963-10-01 1966-09-06 Engler Alfred Dual diaphragm pressure regulator

Also Published As

Publication number Publication date
AU6868974A (en) 1975-11-13
IT1012185B (en) 1977-03-10
ZA733118B (en) 1975-01-29
CA999210A (en) 1976-11-02
GB1463873A (en) 1977-02-09
DE2421600A1 (en) 1974-11-28
ES426059A1 (en) 1976-11-16
FR2229002B1 (en) 1980-04-04
US3926211A (en) 1975-12-16
IL44764A0 (en) 1974-07-31
FR2229002A1 (en) 1974-12-06
BR7403698D0 (en) 1975-01-07
CH586363A5 (en) 1977-03-31
JPS5031431A (en) 1975-03-27

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