GB1416263A - Valve mechanism for controlling flow of fluid under pressure - Google Patents
Valve mechanism for controlling flow of fluid under pressureInfo
- 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
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)
- Flow Control (AREA)
- Control Of Fluid Pressure (AREA)
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 (ko) |
JP (1) | JPS4897120A (ko) |
CA (1) | CA944255A (ko) |
DE (1) | DE2302845A1 (ko) |
FR (1) | FR2173516A5 (ko) |
GB (1) | GB1416263A (ko) |
Families Citing this family (57)
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 |
US4209039A (en) * | 1978-04-10 | 1980-06-24 | Tadeusz Budzich | Load responsive control valve |
US4216797A (en) * | 1978-04-10 | 1980-08-12 | Tadeusz Budzich | Load responsive control valve |
DE2908018A1 (de) * | 1979-03-01 | 1980-09-11 | Barmag Barmer Maschf | Hydraulische steuervorrichtung fuer lastunabhaengige durchflussregelung |
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 |
US5794438A (en) * | 1981-11-05 | 1998-08-18 | Lisniansky; Robert Moshe | Adaptive fluid motor feedback control |
US5794437A (en) * | 1981-11-05 | 1998-08-18 | Lisniansky; Robert Moshe | Regenerative adaptive fluid motor control |
US5794442A (en) * | 1981-11-05 | 1998-08-18 | Lisniansky; Robert Moshe | Adaptive fluid motor control |
US5794441A (en) * | 1981-11-05 | 1998-08-18 | Lisniansky; Robert Moshe | Adaptive fluid feedback control |
US5794440A (en) * | 1981-11-05 | 1998-08-18 | Lisniansky; Robert Moshe | Adaptive fluid control |
US5794439A (en) * | 1981-11-05 | 1998-08-18 | Lisniansky; Robert Moshe | Regenerative adaptive fluid control |
US4693272A (en) * | 1984-02-13 | 1987-09-15 | Husco International, Inc. | Post pressure compensated unitary hydraulic valve |
FR2567233B1 (fr) * | 1984-07-03 | 1986-12-12 | Bennes Marrel | Tiroir assiste pour la compensation de pression dans un distributeur hydraulique |
DE3611973C2 (de) * | 1986-04-09 | 1994-04-14 | Rexroth Mannesmann Gmbh | Nebenschlußventil |
JP2649817B2 (ja) * | 1988-02-29 | 1997-09-03 | 株式会社小松製作所 | 流量制御弁 |
DE3833874A1 (de) * | 1988-10-05 | 1990-04-12 | Bosch Gmbh Robert | Hydraulisches wegeventil |
JP3194384B2 (ja) * | 1989-10-11 | 2001-07-30 | 日立建機株式会社 | 土木・建設機械の油圧駆動装置 |
US5447093A (en) * | 1993-03-30 | 1995-09-05 | Caterpillar Inc. | Flow force compensation |
SE501289C2 (sv) * | 1993-06-24 | 1995-01-09 | Voac Hydraulics Boraas Ab | Styrorgan för en hydraulisk motor |
FR2745337B1 (fr) * | 1996-02-26 | 1998-05-22 | Rexroth Sigma | Element d'entree a centre ouvert pour distribution hydraulique |
US5791142A (en) * | 1997-03-27 | 1998-08-11 | Husco International, Inc. | Hydraulic control valve system with split pressure compensator |
WO1999064760A1 (en) * | 1998-06-12 | 1999-12-16 | Lisniansky, Robert, M. | Regenerative adaptive fluid motor control |
EP1110008A1 (en) * | 1998-06-12 | 2001-06-27 | Robert M. Lisniansky | Regenerative adaptive fluid control |
JP2000009103A (ja) * | 1998-06-22 | 2000-01-11 | Shimadzu Corp | 優先型分流弁 |
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 |
CN103857925A (zh) * | 2011-03-22 | 2014-06-11 | 派克汉尼芬公司 | 具有压力补偿的电比例先导型提升阀 |
US8864684B2 (en) | 2011-10-13 | 2014-10-21 | 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 |
US9060724B2 (en) | 2012-05-30 | 2015-06-23 | 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 |
EP2925228B1 (en) | 2012-11-30 | 2018-09-26 | Magnolia Medical Technologies, Inc. | Syringe based fluid diversion mechanism for bodily-fluid sampling |
CA2932536C (en) | 2012-12-04 | 2023-02-28 | Magnolia Medical Technologies, Inc. | Sterile bodily-fluid collection device and methods |
US10772548B2 (en) | 2012-12-04 | 2020-09-15 | Magnolia Medical Technologies, Inc. | Sterile bodily-fluid collection device and methods |
WO2014164263A1 (en) | 2013-03-12 | 2014-10-09 | Bullington Gregory J | Methods and apparatus for selectively occluding the lumen of a needle |
US10123783B2 (en) | 2014-03-03 | 2018-11-13 | 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 (de) * | 2014-09-30 | 2016-03-31 | Claas Tractor Sas | Hydraulisches Steuersystem |
EP4059426B1 (en) | 2015-06-12 | 2023-12-13 | Magnolia Medical Technologies, Inc. | Bodily-fluid sampling and transfer device |
EP3733067B1 (en) | 2015-09-03 | 2023-06-14 | Magnolia Medical Technologies, Inc. | System for maintaining sterility of a specimen container |
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 (zh) * | 2016-07-18 | 2018-01-23 | 江苏恒立液压科技有限公司 | 液压卸荷装置 |
EP3681384B1 (en) | 2017-09-12 | 2022-12-28 | Magnolia Medical Technologies, Inc. | A system |
CN115553822A (zh) | 2017-12-07 | 2023-01-03 | 木兰医药技术股份有限公司 | 流体控制装置及其使用方法 |
CA3129065A1 (en) | 2019-02-08 | 2020-08-13 | Magnolia Medical Technologies, Inc. | Devices and methods for bodily fluid collection and distribution |
WO2020185914A1 (en) | 2019-03-11 | 2020-09-17 | Magnolia Medical Technologies, Inc. | Fluid control devices and methods of using the same |
EP4170188B1 (en) * | 2021-10-21 | 2024-07-10 | Bucher Hydraulics S.p.A. | Inlet section for use in a hydraulic distributor |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1972
- 1972-02-22 US US00228020A patent/US3777773A/en not_active Expired - Lifetime
- 1972-06-26 CA CA145,682A patent/CA944255A/en not_active Expired
- 1972-09-06 JP JP47088776A patent/JPS4897120A/ja active Pending
- 1972-11-21 FR FR7241290A patent/FR2173516A5/fr not_active Expired
-
1973
- 1973-01-20 DE DE2302845A patent/DE2302845A1/de active Pending
- 1973-01-26 GB GB414673A patent/GB1416263A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2173516A5 (ko) | 1973-10-05 |
CA944255A (en) | 1974-03-26 |
DE2302845A1 (de) | 1973-08-30 |
US3777773A (en) | 1973-12-11 |
JPS4897120A (ko) | 1973-12-11 |
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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 |