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GB1416263A - Valve mechanism for controlling flow of fluid under pressure - Google Patents

Valve mechanism for controlling flow of fluid under pressure

Info

Publication number
GB1416263A
GB1416263A GB414673A GB414673A GB1416263A GB 1416263 A GB1416263 A GB 1416263A GB 414673 A GB414673 A GB 414673A GB 414673 A GB414673 A GB 414673A GB 1416263 A GB1416263 A GB 1416263A
Authority
GB
United Kingdom
Prior art keywords
port
spring
pressure
spool
piston
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
GB414673A
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.)
Koehring Co
Original Assignee
Koehring Co
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 Koehring Co filed Critical Koehring Co
Publication of GB1416263A publication Critical patent/GB1416263A/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
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/25—Pressure control functions
    • F15B2211/253—Pressure margin control, e.g. pump pressure in relation to load pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
    • 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
    • Y10T137/263—Plural sensors for single 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
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87177—With bypass
    • Y10T137/87185—Controlled by supply or exhaust valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Fluid Pressure (AREA)
  • Flow Control (AREA)

Abstract

1416263 Valves KOEHRING CO 26 Jan 1973 [22 Feb 1972] 4146/73 Heading F2V A pressure regulator valve 25 for the control valve 8 of a fluid motor 5 comprises a bore with inlet 31, by-pass 30, feeder 32 and feedback 29 ports accommodating a spool 26 which is subject to the pressure in the port 32 at one side and to the pressure in the port 29 at the other, which spool is biased by a first spring 40 to the feed position when the port 29 is connected via valve 8 to the feeder port 32, and is biased in the opposite direction by the pressure at 38 when the port 29 is connected via valve 8 to exhaust 20 the force of the spring 40 being reduced in such a situation by a second spring 41 connected to the first spring by a piston 42. The piston is actuated by feedback pressure to disconnect the two springs so that the first spring acts with its full force on the spool. In the embodiment of Fig. 1, the two springs act in series whereas in the embodiment of Fig. 4, the two springs act on opposite sides of the spool and the second spring 100 is put in and out of connection with the spool by a piston 101 which is subject to the pressure at the port 95.
GB414673A 1972-02-22 1973-01-26 Valve mechanism for controlling flow of fluid under pressure Expired GB1416263A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22802072A 1972-02-22 1972-02-22

Publications (1)

Publication Number Publication Date
GB1416263A true GB1416263A (en) 1975-12-03

Family

ID=22855421

Family Applications (1)

Application Number Title Priority Date Filing Date
GB414673A Expired GB1416263A (en) 1972-02-22 1973-01-26 Valve mechanism for controlling flow of fluid under pressure

Country Status (6)

Country Link
US (1) US3777773A (en)
JP (1) JPS4897120A (en)
CA (1) CA944255A (en)
DE (1) DE2302845A1 (en)
FR (1) FR2173516A5 (en)
GB (1) GB1416263A (en)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878864A (en) * 1973-12-07 1975-04-22 Borg Warner Bypass valve
US3971216A (en) * 1974-06-19 1976-07-27 The Scott & Fetzer Company Load responsive system with synthetic signal
US3976090A (en) * 1975-02-25 1976-08-24 Johnson Philip C Slow start hydraulic valve
US4003400A (en) * 1975-04-07 1977-01-18 The Boeing Company Self-depressurizing metering valve
US4121610A (en) * 1976-02-02 1978-10-24 Ambac Industries Incorporated Electrically operated proportional flow control hydraulic valve and manually operable remote control device therefor
US4199005A (en) * 1976-08-20 1980-04-22 Tadeusz Budzich Load responsive control valve
US4216797A (en) * 1978-04-10 1980-08-12 Tadeusz Budzich Load responsive control valve
US4209039A (en) * 1978-04-10 1980-06-24 Tadeusz Budzich Load responsive control valve
DE2908018A1 (en) * 1979-03-01 1980-09-11 Barmag Barmer Maschf HYDRAULIC CONTROL DEVICE FOR LOAD-INDEPENDENT FLOW CONTROL
US4253482A (en) * 1979-03-05 1981-03-03 Gresen Manufacturing Company Hydraulic valve having pressure compensated demand flow
US4361169A (en) * 1979-11-13 1982-11-30 Commercial Shearing, Inc. Pressure compensated control valves
US4352375A (en) * 1980-04-14 1982-10-05 Commercial Shearing, Inc. Control valves
US4425940A (en) 1981-04-02 1984-01-17 Canadian Fram Limited Pressure control system
US5794439A (en) * 1981-11-05 1998-08-18 Lisniansky; Robert Moshe Regenerative adaptive fluid control
US5794437A (en) * 1981-11-05 1998-08-18 Lisniansky; Robert Moshe Regenerative adaptive fluid motor control
US5794441A (en) * 1981-11-05 1998-08-18 Lisniansky; Robert Moshe Adaptive fluid feedback control
US5794442A (en) * 1981-11-05 1998-08-18 Lisniansky; Robert Moshe Adaptive fluid motor control
US5794438A (en) * 1981-11-05 1998-08-18 Lisniansky; Robert Moshe Adaptive fluid motor feedback control
US5794440A (en) * 1981-11-05 1998-08-18 Lisniansky; Robert Moshe Adaptive fluid control
US4693272A (en) * 1984-02-13 1987-09-15 Husco International, Inc. Post pressure compensated unitary hydraulic valve
FR2567233B1 (en) * 1984-07-03 1986-12-12 Bennes Marrel ASSISTED DRAWER FOR PRESSURE COMPENSATION IN A HYDRAULIC DISTRIBUTOR
DE3611973C2 (en) * 1986-04-09 1994-04-14 Rexroth Mannesmann Gmbh Shunt valve
JP2649817B2 (en) * 1988-02-29 1997-09-03 株式会社小松製作所 Flow control valve
DE3833874A1 (en) * 1988-10-05 1990-04-12 Bosch Gmbh Robert Hydraulic directional control valve
WO1991005958A1 (en) * 1989-10-11 1991-05-02 Hitachi Construction Machinery Co., Ltd. Hydraulic driving apparatus of civil engineering/construction equipment
US5447093A (en) * 1993-03-30 1995-09-05 Caterpillar Inc. Flow force compensation
SE501289C2 (en) * 1993-06-24 1995-01-09 Voac Hydraulics Boraas Ab Controls for a hydraulic motor
FR2745337B1 (en) * 1996-02-26 1998-05-22 Rexroth Sigma OPEN CENTER INPUT ELEMENT FOR HYDRAULIC DISTRIBUTION
US5791142A (en) * 1997-03-27 1998-08-11 Husco International, Inc. Hydraulic control valve system with split pressure compensator
CA2334894A1 (en) * 1998-06-12 1999-12-16 Robert M. Lisniansky Regenerative adaptive fluid control
WO1999064760A1 (en) * 1998-06-12 1999-12-16 Lisniansky, Robert, M. Regenerative adaptive fluid motor control
JP2000009103A (en) * 1998-06-22 2000-01-11 Shimadzu Corp Priority type diversion valve
US20050081518A1 (en) * 2003-10-20 2005-04-21 Pengfei Ma Flow-control apparatus for controlling the swing speed of a boom assembly
US8197420B2 (en) 2006-12-18 2012-06-12 Magnolia Medical Technologies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
US8256445B2 (en) * 2008-05-22 2012-09-04 Honeywell International Inc. Pressurizing and pressure regulating valve and fuel supply system employing the same
ES2536082T3 (en) 2011-03-22 2015-05-20 Parker-Hannifin Corporation Pilot operated electroproportional mushroom valve with pressure compensation
US8864684B2 (en) 2011-10-13 2014-10-21 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US8535241B2 (en) 2011-10-13 2013-09-17 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US9060724B2 (en) 2012-05-30 2015-06-23 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US9022950B2 (en) 2012-05-30 2015-05-05 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US9204864B2 (en) 2012-08-01 2015-12-08 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
WO2014058945A1 (en) 2012-10-11 2014-04-17 Bullington Gregory J Systems and methods for delivering a fluid to a patient with reduced contamination
WO2014085800A1 (en) 2012-11-30 2014-06-05 Magnolia Medical Technologies, Inc. Syringe based fluid diversion mechanism for bodily-fluid sampling
US10772548B2 (en) 2012-12-04 2020-09-15 Magnolia Medical Technologies, Inc. Sterile bodily-fluid collection device and methods
EP2928375B1 (en) 2012-12-04 2018-01-31 Magnolia Medical Technologies, Inc. Sterile bodily-fluid collection device
IL321832A (en) 2013-03-12 2025-08-01 Magnolia Medical Technologies Inc Methods and apparatus for selectively occluding the lumen of a needle
WO2015134431A1 (en) 2014-03-03 2015-09-11 Magnolia Medical Technologies, Inc. Apparatus and methods for disinfection of a specimen container
US10007276B2 (en) * 2014-05-20 2018-06-26 Hamilton Sundstrand Corporation Pressure-regulating valves
DE102014114210A1 (en) * 2014-09-30 2016-03-31 Claas Tractor Sas Hydraulic control system
EP3307359B1 (en) 2015-06-12 2020-07-01 Gregory J. Bullington Apparatus for syringe-based fluid transfer for bodily-fluid sampling
CN112401882B (en) 2015-09-03 2024-08-27 木兰医药技术股份有限公司 Apparatus and method for maintaining sterility of sample containers
US10392977B2 (en) * 2016-02-11 2019-08-27 Slw Automotive Inc. Automotive lubricant pumping system with two piece relief valve
US10323762B2 (en) * 2016-04-21 2019-06-18 Parker-Hannifin Corporation Three-way pressure control and flow regulator valve
CN106015144B (en) * 2016-07-18 2018-01-23 江苏恒立液压科技有限公司 Hydraulic unloading device
EP4534203A3 (en) 2017-06-09 2025-05-21 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
CN111212597B (en) 2017-09-12 2023-04-11 木兰医药技术股份有限公司 Fluid control device and method of use
US11419531B2 (en) 2017-12-07 2022-08-23 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
US11786155B2 (en) 2019-02-08 2023-10-17 Magnolia Medical Technologies, Inc. Devices and methods for bodily fluid collection and distribution
AU2020234829B2 (en) 2019-03-11 2025-11-13 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
EP4097361B1 (en) * 2020-01-27 2025-02-26 Parker-Hannifin Corporation Valve with an adjustable flow sharing pressure compensator
EP4279750B1 (en) 2021-10-21 2025-01-15 Bucher Hydraulics S.p.A. Inlet section for use in a hydraulic distributor

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US3128783A (en) * 1957-02-11 1964-04-14 Holley Carburetor Co Bypass valve with limited reset
US2977971A (en) * 1958-04-03 1961-04-04 New York Air Brake Co Fluid distribution system and valves therefor
US3143127A (en) * 1962-11-07 1964-08-04 Clark Equipment Co Regulating valve
US3456671A (en) * 1966-04-14 1969-07-22 Parker Hannifin Corp Directional control valve
US3570522A (en) * 1967-05-10 1971-03-16 Caterpillar Tractor Co Hydraulic pressure modulating transmission control system
US3631890A (en) * 1970-04-06 1972-01-04 Borg Warner Flow extending bypass valve

Also Published As

Publication number Publication date
CA944255A (en) 1974-03-26
DE2302845A1 (en) 1973-08-30
US3777773A (en) 1973-12-11
JPS4897120A (en) 1973-12-11
FR2173516A5 (en) 1973-10-05

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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)
PE20 Patent expired after termination of 20 years

Effective date: 19930124