ZA915152B - Load check and pressure compensating valve - Google Patents
Load check and pressure compensating valveInfo
- Publication number
- ZA915152B ZA915152B ZA915152A ZA915152A ZA915152B ZA 915152 B ZA915152 B ZA 915152B ZA 915152 A ZA915152 A ZA 915152A ZA 915152 A ZA915152 A ZA 915152A ZA 915152 B ZA915152 B ZA 915152B
- Authority
- ZA
- South Africa
- Prior art keywords
- pressure compensating
- compensating valve
- load check
- check
- load
- Prior art date
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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
- F15B11/163—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for sharing the pump output equally amongst users or groups of users, e.g. using anti-saturation, pressure compensation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2296—Systems with a variable displacement pump
-
- 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
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
- F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
-
- 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
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
- F15B2211/3053—In combination with a pressure compensating valve
- F15B2211/30555—Inlet and outlet of the pressure compensating valve being connected to the directional control valve
-
- 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
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
-
- 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
- F15B2211/35—Directional control combined with flow control
- F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
- F15B2211/6054—Load sensing circuits having valve means between output member and the load sensing circuit using shuttle 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
- F15B2211/6055—Load sensing circuits having valve means between output member and the load sensing circuit using pressure relief 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/574,864 US5067389A (en) | 1990-08-30 | 1990-08-30 | Load check and pressure compensating valve |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA915152B true ZA915152B (en) | 1992-04-29 |
Family
ID=24297962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA915152A ZA915152B (en) | 1990-08-30 | 1991-07-03 | Load check and pressure compensating valve |
Country Status (8)
Country | Link |
---|---|
US (1) | US5067389A (xx) |
EP (1) | EP0545925B1 (xx) |
JP (1) | JP3392861B2 (xx) |
AU (1) | AU646429B2 (xx) |
CA (1) | CA2088269A1 (xx) |
DE (1) | DE69019379T2 (xx) |
WO (1) | WO1992004544A1 (xx) |
ZA (1) | ZA915152B (xx) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991002902A1 (en) * | 1989-08-16 | 1991-03-07 | Hitachi Construction Machinery Co., Ltd. | Valve device and hydraulic circuit device |
JP2568926B2 (ja) * | 1990-01-18 | 1997-01-08 | 株式会社小松製作所 | アタッチメントの流量切換え装置 |
EP0536398B1 (en) * | 1990-05-15 | 1996-07-10 | Kabushiki Kaisha Komatsu Seisakusho | Hydraulic system |
JPH0473403A (ja) * | 1990-07-11 | 1992-03-09 | Nabco Ltd | 油圧回路 |
DE4036720C2 (de) * | 1990-11-17 | 2001-09-13 | Linde Ag | Steuerschaltung für die lastunabhängige Aufteilung eines Druckmittelstromes |
JP3124094B2 (ja) * | 1991-12-25 | 2001-01-15 | カヤバ工業株式会社 | 複数アクチュエータの制御装置 |
FR2689575B1 (fr) * | 1992-04-06 | 1994-07-08 | Rexroth Sigma | Distributeur hydraulique a compensation de pression et une selection de pression maximale pour piloter une pompe et commande hydraulique multiple incluant de tels distributeurs. |
US5241819A (en) * | 1992-06-30 | 1993-09-07 | Westinghouse Air Brake Company | Tappet valve assembly for automatic railway vehicle couplers |
US5454223A (en) * | 1993-05-28 | 1995-10-03 | Dana Corporation | Hydraulic load sensing system with poppet valve having an orifice therein |
US5435228A (en) * | 1993-07-20 | 1995-07-25 | Pneumatic Energy Inc | Pneumatic transformer |
US5353683A (en) * | 1993-07-20 | 1994-10-11 | Snitgen Joseph D | Pneumatic transformer |
DE4341244C2 (de) * | 1993-12-03 | 1997-08-14 | Orenstein & Koppel Ag | Steuerung zur Aufteilung des durch mindestens eine Pumpe zur Verfügung gestellten Förderstromes bei Hydrauliksystemen auf mehrere Verbraucher |
JP3491771B2 (ja) * | 1994-03-15 | 2004-01-26 | 株式会社小松製作所 | 圧力補償弁及び圧油供給装置 |
ATE181755T1 (de) * | 1995-03-24 | 1999-07-15 | Orenstein & Koppel Ag | Einrichtung zur lastdruckunabhängigen durchflussverteilung bei einem steuerschieber für mobile bau- und arbeitsmaschinen |
US5579642A (en) * | 1995-05-26 | 1996-12-03 | Husco International, Inc. | Pressure compensating hydraulic control system |
US5699665A (en) * | 1996-04-10 | 1997-12-23 | Commercial Intertech Corp. | Control system with induced load isolation and relief |
US5791142A (en) * | 1997-03-27 | 1998-08-11 | Husco International, Inc. | Hydraulic control valve system with split pressure compensator |
US5878647A (en) * | 1997-08-11 | 1999-03-09 | Husco International Inc. | Pilot solenoid control valve and hydraulic control system using same |
US5890362A (en) * | 1997-10-23 | 1999-04-06 | Husco International, Inc. | Hydraulic control valve system with non-shuttle pressure compensator |
DE19804398A1 (de) * | 1998-02-04 | 1999-08-05 | Linde Ag | Ventilanordnung für die Arbeitshydraulik eines Arbeitsfahrzeugs |
DE19855187A1 (de) * | 1998-11-30 | 2000-05-31 | Mannesmann Rexroth Ag | Verfahren und Steueranordnung zur Ansteuerung eines hydraulischen Verbrauchers |
US6098403A (en) * | 1999-03-17 | 2000-08-08 | Husco International, Inc. | Hydraulic control valve system with pressure compensator |
US6318079B1 (en) | 2000-08-08 | 2001-11-20 | Husco International, Inc. | Hydraulic control valve system with pressure compensated flow control |
US6644335B2 (en) * | 2000-12-15 | 2003-11-11 | Caterpillar S.A.R.L. | Precision orificing for pilot operated control valves |
US6745564B2 (en) * | 2001-12-21 | 2004-06-08 | Volvo Construction Equipment Holding Sweden Ab | Hydraulic variable control apparatus for heavy construction equipment |
US6782697B2 (en) | 2001-12-28 | 2004-08-31 | Caterpillar Inc. | Pressure-compensating valve with load check |
DE10219717B3 (de) * | 2002-05-02 | 2004-02-05 | Sauer-Danfoss (Nordborg) A/S | Hydraulische Ventilanordnung |
US6761027B2 (en) * | 2002-06-27 | 2004-07-13 | Caterpillar Inc | Pressure-compensated hydraulic circuit with regeneration |
DE10325296A1 (de) * | 2003-06-04 | 2004-12-23 | Bosch Rexroth Ag | Hydraulische Steueranordnung |
DE102006049584A1 (de) | 2006-03-13 | 2007-09-20 | Robert Bosch Gmbh | LUDV-Ventilanordnung |
JP5283862B2 (ja) * | 2007-06-05 | 2013-09-04 | 三陽機器株式会社 | 油圧制御装置 |
US7854115B2 (en) * | 2008-04-25 | 2010-12-21 | Husco International, Inc. | Post-pressure compensated hydraulic control valve with load sense pressure limiting |
US20140069091A1 (en) * | 2011-03-17 | 2014-03-13 | Parker Hannifin Corporation | Electro-hydraulic system for controlling multiple functions |
US9003786B2 (en) * | 2011-05-10 | 2015-04-14 | Caterpillar Inc. | Pressure limiting in hydraulic systems |
US10246942B2 (en) | 2013-09-13 | 2019-04-02 | Oilpath Hydraulics Pty Ltd | Hyraulic motor circuit |
WO2015094142A1 (en) * | 2013-12-17 | 2015-06-25 | Hema Endüstri̇ Anoni̇m Şi̇rketi̇ | A valve system which holds load and which equalizes pressure in hydraulic fixtures |
FR3054008B1 (fr) * | 2016-07-13 | 2019-05-10 | Robert Bosch Gmbh | Installation de distributeur hydraulique equipee d'un absorbeur de chocs de pression |
CN114906368B (zh) * | 2022-07-19 | 2022-09-09 | 卡松科技股份有限公司 | 一种润滑油智能调和系统的灌装计量装置及其平衡阀 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2618121A (en) * | 1949-11-07 | 1952-11-18 | Hpm Dev Corp | Locking control circuit for fluid-actuated motors |
US3470694A (en) * | 1968-04-30 | 1969-10-07 | Weatherhead Co | Flow proportional valve for load responsive system |
US3534774A (en) * | 1968-11-14 | 1970-10-20 | Koehring Co | Pressure compensated control valve |
US3827453A (en) * | 1972-05-05 | 1974-08-06 | Parker Hannifin Corp | Directional control valve |
US3878864A (en) * | 1973-12-07 | 1975-04-22 | Borg Warner | Bypass valve |
ZA7696B (en) * | 1975-02-06 | 1976-12-29 | Commercial Shearing | Compensated work port fluid valves and work port compensators |
DE2601999C3 (de) * | 1976-01-21 | 1980-02-21 | Danfoss A/S, Nordborg (Daenemark) | Anordnung zur Beeinflussung der Arbeitsmenge eines Servomotors |
US3995425A (en) * | 1976-03-08 | 1976-12-07 | Deere & Company | Demand compensated hydraulic system with pilot line pressure-maintaining valve |
US4111283A (en) * | 1976-12-20 | 1978-09-05 | Clark Equipment Company | Regulator valve |
US4361169A (en) * | 1979-11-13 | 1982-11-30 | Commercial Shearing, Inc. | Pressure compensated control valves |
US4282898A (en) * | 1979-11-29 | 1981-08-11 | Caterpillar Tractor Co. | Flow metering valve with operator selectable boosted flow |
US4352375A (en) * | 1980-04-14 | 1982-10-05 | Commercial Shearing, Inc. | Control valves |
US4343152A (en) * | 1980-05-16 | 1982-08-10 | Caterpillar Tractor Co. | Load sensing porting arrangement |
DE3034859A1 (de) * | 1980-09-16 | 1982-04-29 | Robert Bosch Gmbh, 7000 Stuttgart | Hydraulisches wegeventil |
US4693272A (en) * | 1984-02-13 | 1987-09-15 | Husco International, Inc. | Post pressure compensated unitary hydraulic valve |
FR2562632B1 (fr) * | 1984-04-18 | 1986-12-12 | Bennes Marrel | Distributeur hydraulique du type proportionnel, avec prise d'informations concernant les plus fortes pressions dans les circuits d'utilisation |
US4724673A (en) * | 1986-06-30 | 1988-02-16 | Vickers, Incorporated | Power transmission |
US4787294A (en) * | 1987-07-29 | 1988-11-29 | Hydreco, Incorporated | Sectional flow control and load check assembly |
DE3883690T2 (de) * | 1987-10-05 | 1994-03-17 | Hitachi Construction Machinery | Hydraulisches Antriebssystem. |
US4958553A (en) * | 1988-04-22 | 1990-09-25 | Diesel Kiki Co., Ltd. | Hydraulic controller |
US4986071A (en) * | 1989-06-05 | 1991-01-22 | Komatsu Dresser Company | Fast response load sense control system |
-
1990
- 1990-08-30 US US07/574,864 patent/US5067389A/en not_active Expired - Lifetime
- 1990-10-15 AU AU71727/91A patent/AU646429B2/en not_active Ceased
- 1990-10-15 EP EP91902481A patent/EP0545925B1/en not_active Expired - Lifetime
- 1990-10-15 WO PCT/US1990/005847 patent/WO1992004544A1/en active IP Right Grant
- 1990-10-15 DE DE69019379T patent/DE69019379T2/de not_active Expired - Fee Related
- 1990-10-15 CA CA002088269A patent/CA2088269A1/en not_active Abandoned
- 1990-10-15 JP JP50264491A patent/JP3392861B2/ja not_active Expired - Lifetime
-
1991
- 1991-07-03 ZA ZA915152A patent/ZA915152B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
JP3392861B2 (ja) | 2003-03-31 |
AU7172791A (en) | 1992-03-30 |
JPH05509376A (ja) | 1993-12-22 |
WO1992004544A1 (en) | 1992-03-19 |
US5067389A (en) | 1991-11-26 |
DE69019379D1 (de) | 1995-06-14 |
EP0545925A1 (en) | 1993-06-16 |
CA2088269A1 (en) | 1992-03-01 |
AU646429B2 (en) | 1994-02-24 |
DE69019379T2 (de) | 1996-02-22 |
EP0545925B1 (en) | 1995-05-10 |
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