GB1493991A - Pressure compensating valve mechanism for hydraulic control valves - Google Patents

Pressure compensating valve mechanism for hydraulic control valves

Info

Publication number
GB1493991A
GB1493991A GB16127/75A GB1612775A GB1493991A GB 1493991 A GB1493991 A GB 1493991A GB 16127/75 A GB16127/75 A GB 16127/75A GB 1612775 A GB1612775 A GB 1612775A GB 1493991 A GB1493991 A GB 1493991A
Authority
GB
United Kingdom
Prior art keywords
chamber
port
inlet
flow
plunger
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.)
Expired
Application number
GB16127/75A
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.)
Sundstrand Corp
Original Assignee
Sundstrand Corp
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 Sundstrand Corp filed Critical Sundstrand Corp
Publication of GB1493991A publication Critical patent/GB1493991A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2605—Pressure responsive
    • Y10T137/2612—Common sensor for both bypass or relief valve and other branch valve
    • Y10T137/2615—Bypass or relief valve opens as other branch valve closes
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2605—Pressure responsive
    • Y10T137/2622—Bypass or relief valve responsive to pressure downstream of outlet valve
    • Y10T137/2627—Outlet valve carried by bypass or relief 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
    • Y10T137/7832—Plural valves biased closed
    • 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
    • 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
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87177—With bypass

Abstract

1493991 Valves SUNDSTRAND CORP 18 April 1975 [22 April 1974] 16127/75 Heading F2V In a pressure regulating valve for a directional control valve a plunger 32 is moved against a spring-loading 37 by the pressure differential in chambers 46, 47, which are connected respectively to the operative work port of the directional control valve and an inlet 40 via passages 54, 52 and 56. The plunger moves to control flow from the inlet 40 to a by-pass passage 42 and a passage 39 connected to the inlet of the directional control valve. A signal passage 23<SP>1</SP>, which connects with the operative work port of the directional control valve, a passage 45, a ball check valve 73 and passages 65, 68 connect with the chamber 46 to allow unrestricted flow thereinto. A check valve 63 has a notch (82) in its end bearing against its seat 69 to allow restricted flow from chamber 46 to exhaust port 43 and to damp pressure fluctuations during normal regulating movements of the plunger, the check valve being movable off its seat by higher pressures in chamber 46 to allow unrestricted flow to exhaust port 43. A pressure relief valve 85 is operative to exhaust chamber 46 at still higher pressures. The restricted flow to the port 43 from chamber 46 may be through a "leaky" end of plunger 32 or a restriction therethrough. An adjustable stop 50 limits the maximum flow from the inlet 40 to the port 39.
GB16127/75A 1974-04-22 1975-04-18 Pressure compensating valve mechanism for hydraulic control valves Expired GB1493991A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US463098A US3885583A (en) 1974-04-22 1974-04-22 Pressure compensating valve mechanism for hydraulic control valves

Publications (1)

Publication Number Publication Date
GB1493991A true GB1493991A (en) 1977-12-07

Family

ID=23838851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16127/75A Expired GB1493991A (en) 1974-04-22 1975-04-18 Pressure compensating valve mechanism for hydraulic control valves

Country Status (8)

Country Link
US (1) US3885583A (en)
JP (1) JPS5533481B2 (en)
CA (1) CA1019222A (en)
DE (1) DE2517135A1 (en)
FR (1) FR2268212B1 (en)
GB (1) GB1493991A (en)
IT (1) IT1032705B (en)
PL (1) PL96325B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107762999A (en) * 2017-11-23 2018-03-06 宁波文泽机电技术开发有限公司 Three-way pressure compensating valve and pressure compensating system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779419A (en) * 1985-11-12 1988-10-25 Caterpillar Inc. Adjustable flow limiting pressure compensated flow control
DE19829394A1 (en) * 1998-07-01 2000-01-13 Fluidtech Gmbh Pressure control valve with hydrodynamic damping
US7243672B2 (en) * 2004-03-24 2007-07-17 Kayaba Industry Co., Ltd. Flow control valve
US9121397B2 (en) 2010-12-17 2015-09-01 National Oilwell Varco, L.P. Pulsation dampening system for a reciprocating pump
CN104235098B (en) * 2013-12-23 2016-08-17 江苏恒立液压科技有限公司 Fluid pressure valve device
EP3220023B1 (en) * 2016-03-15 2020-12-23 Hamilton Sundstrand Corporation Directional control valve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610859A (en) * 1949-07-09 1952-09-16 Modern Products Inc Quick-exhausting valve
US3034527A (en) * 1959-11-17 1962-05-15 William E Hennells Safety check and exhaust valve
US3595265A (en) * 1969-04-14 1971-07-27 Caterpillar Tractor Co Self-cleaning orifice check valve
US3718159A (en) * 1971-01-20 1973-02-27 Hydraulic Industries Control valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107762999A (en) * 2017-11-23 2018-03-06 宁波文泽机电技术开发有限公司 Three-way pressure compensating valve and pressure compensating system

Also Published As

Publication number Publication date
FR2268212B1 (en) 1977-04-15
PL96325B1 (en) 1977-12-31
JPS50144135A (en) 1975-11-19
CA1019222A (en) 1977-10-18
DE2517135A1 (en) 1975-10-30
FR2268212A1 (en) 1975-11-14
JPS5533481B2 (en) 1980-09-01
US3885583A (en) 1975-05-27
IT1032705B (en) 1979-06-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee