CN102803745B - 比例阀组件 - Google Patents
比例阀组件 Download PDFInfo
- Publication number
- CN102803745B CN102803745B CN201180014786.7A CN201180014786A CN102803745B CN 102803745 B CN102803745 B CN 102803745B CN 201180014786 A CN201180014786 A CN 201180014786A CN 102803745 B CN102803745 B CN 102803745B
- Authority
- CN
- China
- Prior art keywords
- valve
- fluid
- valve assembly
- communicated
- retaining part
- 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.)
- Active
Links
- 239000012530 fluid Substances 0.000 claims abstract description 254
- 238000010992 reflux Methods 0.000 claims description 39
- 230000037361 pathway Effects 0.000 claims description 36
- 238000012546 transfer Methods 0.000 claims description 32
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims 4
- 238000000429 assembly Methods 0.000 claims 4
- 238000004891 communication Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000007935 neutral effect Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/006—Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
-
- 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
-
- 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
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/0426—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with fluid-operated pilot valves, i.e. multiple stage 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
-
- 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
- F15B2211/30515—Load holding 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/30575—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve in a Wheatstone Bridge arrangement (also half bridges)
-
- 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
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid 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
- F15B2211/30—Directional control
- F15B2211/355—Pilot pressure control
-
- 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
-
- 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
- F15B2211/8609—Control during or prevention of abnormal conditions the abnormal condition being cavitation
-
- 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
- Y10T137/7758—Pilot or servo controlled
- Y10T137/7761—Electrically actuated 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
- Y10T137/7837—Direct response valves [i.e., check valve type]
-
- 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
-
- 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
- Y10T137/86928—Sequentially progressive opening or closing of plural 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
- Y10T137/8593—Systems
- Y10T137/87056—With selective motion for plural valve actuator
-
- 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
- Y10T137/87193—Pilot-actuated
- Y10T137/87201—Common to plural valve motor chambers
-
- 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
- Y10T137/87217—Motor
- Y10T137/87225—Fluid motor
-
- 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
- Y10T137/87233—Biased exhaust valve
- Y10T137/87241—Biased closed
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/690,724 US8291934B2 (en) | 2010-01-20 | 2010-01-20 | Proportional valve assembly |
US12/690,724 | 2010-01-20 | ||
PCT/IB2011/000072 WO2011089503A1 (en) | 2010-01-20 | 2011-01-19 | Proportional valve assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102803745A CN102803745A (zh) | 2012-11-28 |
CN102803745B true CN102803745B (zh) | 2015-05-06 |
Family
ID=44065283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201180014786.7A Active CN102803745B (zh) | 2010-01-20 | 2011-01-19 | 比例阀组件 |
Country Status (9)
Country | Link |
---|---|
US (1) | US8291934B2 (zh) |
EP (1) | EP2526305B1 (zh) |
JP (1) | JP2013517437A (zh) |
KR (1) | KR20120121887A (zh) |
CN (1) | CN102803745B (zh) |
BR (1) | BR112012018083A2 (zh) |
CA (1) | CA2787665A1 (zh) |
MX (1) | MX2012008522A (zh) |
WO (1) | WO2011089503A1 (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101445729B1 (ko) * | 2007-07-02 | 2014-10-07 | 파커 하니핀 매뉴팩쳐링 스웨덴 아베 | 유체 밸브 장치 |
DE102012017714A1 (de) * | 2012-09-07 | 2014-03-13 | Hoerbiger Automatisierungstechnik Holding Gmbh | Geregelte Proportional-Dreiwegeventileinheit |
CN103893891B (zh) * | 2012-12-26 | 2016-03-02 | 北京谊安医疗***股份有限公司 | 一种呼吸机非线性比例阀的校验方法 |
US9903395B2 (en) * | 2016-02-24 | 2018-02-27 | Mac Valves, Inc. | Proportional pressure controller with isolation valve assembly |
CN106870775A (zh) * | 2017-04-07 | 2017-06-20 | 中国铁道科学研究院 | 活塞式控制阀 |
IT201900002599A1 (it) * | 2019-02-22 | 2020-08-22 | Bosch Gmbh Robert | Sistema valvola di ritegno a controllo elettronico |
US20240175452A1 (en) * | 2022-11-28 | 2024-05-30 | Cnh Industrial America Llc | Reservoir with variable charge pressure |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4905959A (en) * | 1987-10-27 | 1990-03-06 | Bahco Hydrauto Ab | Pressure medium valve |
US5331883A (en) * | 1981-09-28 | 1994-07-26 | Bo Andersson | Hydraulic valve means |
US5421545A (en) * | 1993-09-03 | 1995-06-06 | Caterpillar Inc. | Poppet valve with force feedback control |
DE19728092A1 (de) * | 1997-07-02 | 1999-01-07 | Werner Reisland | Hydraulische Steuervorrichtung |
CN1661242A (zh) * | 2004-02-24 | 2005-08-31 | 沃尔沃建造设备控股(瑞典)有限公司 | 用于建筑重型设备的流量控制装置 |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3024801A (en) * | 1955-02-07 | 1962-03-13 | Carls William | Combination valve and housing |
US3189046A (en) * | 1962-11-09 | 1965-06-15 | Nuclear Products Company | Poppet check valve |
US4111226A (en) * | 1977-08-01 | 1978-09-05 | Ross Operating Valve Co. | Multiple function four poppet valve system |
DE2915783C2 (de) * | 1979-04-19 | 1986-07-03 | Vickers Systems GmbH, 6380 Bad Homburg | Aus Sicherheitsgründen arbeitsüberwachte Ventilanordnung |
DE3172140D1 (en) * | 1981-09-02 | 1985-10-10 | Vickers Systems Gmbh | Electro-hydraulic control of an actuator piston |
USRE32644E (en) * | 1984-02-13 | 1988-04-12 | Robert W. Brundage | Solenoid controlled flow valve |
JPS60196476A (ja) | 1984-03-16 | 1985-10-04 | Komatsu Ltd | ポペツト式流量制御弁 |
JPS61105381A (ja) * | 1984-10-29 | 1986-05-23 | Kawasaki Heavy Ind Ltd | 電磁流量制御弁 |
US4813447A (en) * | 1987-05-14 | 1989-03-21 | Hitachi Construction Machinery Co., Ltd. | Flow control valve apparatus |
US4848721A (en) * | 1989-01-03 | 1989-07-18 | Stanislav Chudakov | Hydraulic valve with integrated solenoid |
US5137254A (en) * | 1991-09-03 | 1992-08-11 | Caterpillar Inc. | Pressure compensated flow amplifying poppet valve |
US5170692A (en) * | 1991-11-04 | 1992-12-15 | Vickers, Incorporated | Hydraulic control system |
US5207059A (en) * | 1992-01-15 | 1993-05-04 | Caterpillar Inc. | Hydraulic control system having poppet and spool type valves |
US5645263A (en) * | 1993-10-04 | 1997-07-08 | Caterpillar Inc. | Pilot valve for a flow amplyifying poppet valve |
US5546752A (en) * | 1995-02-23 | 1996-08-20 | Hydro-Gear Ltd. Partnership | Combination valve including improved neutral valve for use in hydrostatic transmission |
EP0862698B1 (en) * | 1995-12-15 | 2003-03-05 | Parker Hannifin Plc | Control valves |
US6089528A (en) * | 1998-12-18 | 2000-07-18 | Caterpillar Inc. | Poppet valve control with sealing element providing improved load drift control |
US6047944A (en) * | 1999-02-25 | 2000-04-11 | Caterpillar Inc. | Poppet with a flow increasing element for limiting movement thereof in a poppet valve |
US6131606A (en) * | 1999-06-21 | 2000-10-17 | Caterpillar Inc. | Moving check valve seat providing high pressure relief |
US6206044B1 (en) * | 1999-12-09 | 2001-03-27 | Eaton Corporation | By-pass solenoid with integral check valve |
DE10006141A1 (de) * | 2000-02-11 | 2001-09-06 | Zf Lenksysteme Gmbh | Elektrohydraulische Steuervorrichtung |
DE10046979B4 (de) * | 2000-09-22 | 2004-06-03 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Elektromagnetisch betätigbare Ventileinrichtung und kombinierte Ventilvorrichtung |
US6557822B1 (en) * | 2000-11-21 | 2003-05-06 | Caterpillar Inc. | Dynamically stable flow amplifying poppet valve |
US7490625B1 (en) * | 2001-04-23 | 2009-02-17 | John Leslie Johnson | Pilot valve manifold |
US7028708B1 (en) * | 2003-05-09 | 2006-04-18 | Hydro-Gear Limited Partnership | Combined check valve and pressure relief valve |
JP4160530B2 (ja) * | 2004-04-28 | 2008-10-01 | 日立建機株式会社 | 制御弁装置及び圧力回路 |
US7921880B2 (en) * | 2007-08-20 | 2011-04-12 | Hydraforce, Inc. | Three-way poppet valve with intermediate pilot port |
-
2010
- 2010-01-20 US US12/690,724 patent/US8291934B2/en active Active
-
2011
- 2011-01-19 BR BR112012018083A patent/BR112012018083A2/pt not_active IP Right Cessation
- 2011-01-19 JP JP2012549432A patent/JP2013517437A/ja active Pending
- 2011-01-19 CN CN201180014786.7A patent/CN102803745B/zh active Active
- 2011-01-19 CA CA 2787665 patent/CA2787665A1/en not_active Abandoned
- 2011-01-19 WO PCT/IB2011/000072 patent/WO2011089503A1/en active Application Filing
- 2011-01-19 MX MX2012008522A patent/MX2012008522A/es not_active Application Discontinuation
- 2011-01-19 KR KR1020127019646A patent/KR20120121887A/ko not_active Application Discontinuation
- 2011-01-19 EP EP20110711132 patent/EP2526305B1/en not_active Not-in-force
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5331883A (en) * | 1981-09-28 | 1994-07-26 | Bo Andersson | Hydraulic valve means |
US4905959A (en) * | 1987-10-27 | 1990-03-06 | Bahco Hydrauto Ab | Pressure medium valve |
US5421545A (en) * | 1993-09-03 | 1995-06-06 | Caterpillar Inc. | Poppet valve with force feedback control |
DE19728092A1 (de) * | 1997-07-02 | 1999-01-07 | Werner Reisland | Hydraulische Steuervorrichtung |
CN1661242A (zh) * | 2004-02-24 | 2005-08-31 | 沃尔沃建造设备控股(瑞典)有限公司 | 用于建筑重型设备的流量控制装置 |
Also Published As
Publication number | Publication date |
---|---|
EP2526305A1 (en) | 2012-11-28 |
KR20120121887A (ko) | 2012-11-06 |
BR112012018083A2 (pt) | 2016-03-29 |
US20110174393A1 (en) | 2011-07-21 |
CN102803745A (zh) | 2012-11-28 |
WO2011089503A1 (en) | 2011-07-28 |
CA2787665A1 (en) | 2011-07-28 |
US8291934B2 (en) | 2012-10-23 |
JP2013517437A (ja) | 2013-05-16 |
EP2526305B1 (en) | 2015-04-29 |
MX2012008522A (es) | 2012-08-23 |
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