FR2375472A1 - Installation hydraulique perfectionnee comportant un circuit de priorite - Google Patents
Installation hydraulique perfectionnee comportant un circuit de prioriteInfo
- Publication number
- FR2375472A1 FR2375472A1 FR7730879A FR7730879A FR2375472A1 FR 2375472 A1 FR2375472 A1 FR 2375472A1 FR 7730879 A FR7730879 A FR 7730879A FR 7730879 A FR7730879 A FR 7730879A FR 2375472 A1 FR2375472 A1 FR 2375472A1
- Authority
- FR
- France
- Prior art keywords
- circuit
- working circuit
- pump
- installation including
- priority
- 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.)
- Granted
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
- F15B13/022—Flow-dividers; Priority valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
a. Installation hydraulique perfectionnée comportant un circuit de priorité. b. Il comprend une pompe à débit variable; un circuit de travail primaire; un circuit de travail secondaire; un dispositif de soupape pour régler le débit sous lequel ladite pompe alimente ledit circuit de travail primaire et ledit circuit de travail secondaire en assurant la priorité de la demande du premier sur celle du second, ledit dispositif de soupape incluant des moyens pour indiquer une demande d'augmentation du niveau d'alimentation hydraulique du premier circuit de travail, lesdits moyens étant actionnés par la détection d'une augmentation de pression dans ledit circuit de travail primaire; et des moyens qui, en réponse auxdits moyens d'indication augmentent le débit de ladite pompe. c. Concerne notamment certaines installations hydrauliques à plusieurs circuits, comme celles des chariots élévateurs à fourche
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/753,250 US4070857A (en) | 1976-12-22 | 1976-12-22 | Hydraulic priority circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2375472A1 true FR2375472A1 (fr) | 1978-07-21 |
FR2375472B1 FR2375472B1 (fr) | 1983-10-28 |
Family
ID=25029827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7730879A Granted FR2375472A1 (fr) | 1976-12-22 | 1977-10-13 | Installation hydraulique perfectionnee comportant un circuit de priorite |
Country Status (5)
Country | Link |
---|---|
US (1) | US4070857A (fr) |
CA (1) | CA1044568A (fr) |
DE (1) | DE2745937C2 (fr) |
FR (1) | FR2375472A1 (fr) |
GB (1) | GB1531125A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2470406A1 (fr) * | 1979-11-27 | 1981-05-29 | Rexroth Sigma | Dispositif de regulation du debit d'un fluide, notamment hydraulique |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4140194A (en) * | 1974-12-12 | 1979-02-20 | Marius Moreau | Auxiliary hydraulic drive for a trailer-tractor combination |
DE2716868C2 (de) * | 1977-04-16 | 1984-03-08 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Druckmittelsteuereinrichtung |
US4147034A (en) * | 1978-04-19 | 1979-04-03 | Caterpillar Tractor Co. | Hydraulic system with priority control |
US4334408A (en) * | 1979-09-19 | 1982-06-15 | Joy Manufacturing Company | Pneumatic and hydraulic power control of drill |
US4449365A (en) * | 1979-11-19 | 1984-05-22 | Allis-Chalmers Corporation | Lift, tilt and steering control for a lift truck |
US4282898A (en) * | 1979-11-29 | 1981-08-11 | Caterpillar Tractor Co. | Flow metering valve with operator selectable boosted flow |
US4454715A (en) * | 1981-05-22 | 1984-06-19 | Caterpillar Tractor Co. | Fluid control system |
EP0072233B1 (fr) * | 1981-08-10 | 1986-04-02 | Clark Equipment Company | Véhicule et système hydraulique avec pompe unique |
US4573319A (en) * | 1981-08-10 | 1986-03-04 | Clark Equipment Company | Vehicle hydraulic system with single pump |
US4485623A (en) * | 1981-08-10 | 1984-12-04 | Clark Equipment Company | Vehicle hydraulic system with pump speed control |
DE3149026A1 (de) * | 1981-12-11 | 1983-06-30 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Steuereinrichtung fuer zwei ueber je einen stromzweig durch eine hochdruckpumpe versorgte hydraulische stellvorrichtungen |
JPS58135551U (ja) * | 1982-03-09 | 1983-09-12 | 株式会社クボタ | トラクタの駆動構造 |
US4537029A (en) * | 1982-09-23 | 1985-08-27 | Vickers, Incorporated | Power transmission |
DE3238781C2 (de) * | 1982-10-20 | 1986-03-20 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Stromteilventil |
US4665698A (en) * | 1983-04-18 | 1987-05-19 | Clark Equipment Company | Hydraulic system with proportional control |
DE3327608C2 (de) * | 1983-07-30 | 1985-06-05 | Integral Hydraulik & Co, 4000 Düsseldorf | Schaltungsanordnung |
US4523431A (en) * | 1984-02-16 | 1985-06-18 | Caterpillar Tractor Co. | Load responsive system |
US4683802A (en) * | 1984-03-15 | 1987-08-04 | Lull Engineering Company, Inc. | Divided flow self-leveling system |
DE3412871A1 (de) * | 1984-04-05 | 1985-10-17 | Linde Ag, 6200 Wiesbaden | Steuereinrichtung fuer ein antriebsaggregat |
US4773216A (en) * | 1985-01-22 | 1988-09-27 | Kanzaki Kokykoki Mfg. Co. Ltd. | Flow divider valve for hydraulic system in working vehicles |
DE3507122A1 (de) * | 1985-02-28 | 1986-08-28 | Mannesmann Rexroth GmbH, 8770 Lohr | Vorrangsteuerung fuer hydraulische verbraucher |
US4635439A (en) * | 1985-04-11 | 1987-01-13 | Caterpillar Industrial Inc. | Fluid operated system control |
DE3629471A1 (de) * | 1986-08-29 | 1988-03-03 | Bosch Gmbh Robert | Hydraulische steuereinrichtung |
DE3709704A1 (de) * | 1987-03-25 | 1988-10-13 | Steinbock Gmbh | Hydraulisch betaetigte lenkeinrichtung |
US4815357A (en) * | 1987-07-21 | 1989-03-28 | Lull Corp. | Adjustable divided flow self-leveling system |
US4957283A (en) * | 1988-10-07 | 1990-09-18 | Combined Fluid Products Co. | Vacuum system for feeding sheets |
JPH07116721B2 (ja) * | 1989-01-31 | 1995-12-13 | 油谷重工株式会社 | 油圧ショベルの油圧回路 |
JPH0730940Y2 (ja) * | 1990-11-10 | 1995-07-19 | 株式会社豊田自動織機製作所 | 分流ポンプ |
US5251534A (en) * | 1992-04-29 | 1993-10-12 | Kayaba Industry Co. Ltd. | Input apparatus |
DE4316361C2 (de) * | 1993-05-15 | 1999-04-01 | Radosav Nikolic | Hydraulisch arbeitendes Flurförderzeug |
US5379585A (en) * | 1993-07-06 | 1995-01-10 | General Electric Company | Hydraulic control system for a jet engine nozzle |
JPH11505198A (ja) * | 1995-05-22 | 1999-05-18 | コマーシャル インターテック コーポレーション | パワーアシストされた液圧式ステアリングシステム |
AU1377997A (en) * | 1996-01-10 | 1997-08-01 | Aeroquip-Vickers International Gmbh | Low-loss drive system for a plurality of hydraulic actuators |
US5722190A (en) * | 1996-03-15 | 1998-03-03 | The Gradall Company | Priority biased load sense hydraulic system for hydraulic excavators |
US5928041A (en) * | 1998-02-09 | 1999-07-27 | Commercial Intertech Corp. | Rotary valve actuated hydraulic steering system |
US6321152B1 (en) | 1999-12-16 | 2001-11-20 | Caterpillar Inc. | System and method for inhibiting saturation of a hydraulic valve assembly |
US6926113B2 (en) * | 2003-10-22 | 2005-08-09 | Cnh America Llc | Cushioned steering for articulated vehicle |
US7927060B2 (en) * | 2005-02-04 | 2011-04-19 | Bayne Machine Works, Inc. | Priority hydraulic flow diverter control assembly |
US20060242955A1 (en) * | 2005-04-19 | 2006-11-02 | Clark Equipment Company | Hydraulic system with piston pump and open center valve |
DE102006008940A1 (de) * | 2006-02-23 | 2007-08-30 | Robert Bosch Gmbh | Hydraulische Steueranordnung |
CN100577554C (zh) * | 2006-04-19 | 2010-01-06 | 浙江佳力科技股份有限公司 | 全液压电动叉车液压系统 |
DE102009028816A1 (de) * | 2009-08-21 | 2011-02-24 | Deere & Company, Moline | Hydraulische Anordnung |
DE102010027964A1 (de) * | 2010-04-20 | 2011-10-20 | Deere & Company | Hydraulische Anordnung |
US9290366B2 (en) | 2011-01-04 | 2016-03-22 | Crown Equipment Corporation | Materials handling vehicle having a manifold located on a power unit for maintaining fluid pressure at an output port at a commanded pressure corresponding to an auxiliary device operating pressure |
CN104314901A (zh) * | 2014-09-05 | 2015-01-28 | 长沙中联消防机械有限公司 | 阀装置、流量优先控制回路及车辆 |
NO343276B1 (en) * | 2016-11-30 | 2019-01-14 | Impact Solutions As | A method of controlling a prime mover and a plant for controlling the delivery of a pressurized fluid in a conduit |
GB2591725B (en) * | 2019-11-26 | 2024-04-24 | Bamford Excavators Ltd | Hydraulic system |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2892311A (en) * | 1958-01-08 | 1959-06-30 | Deere & Co | Hydraulic apparatus |
US3355994A (en) * | 1966-01-13 | 1967-12-05 | New York Air Brake Co | Hydraulic system |
US3456560A (en) * | 1968-02-01 | 1969-07-22 | Racine Hydraulics Inc | Selective priority flow control system |
US3465519A (en) * | 1967-08-18 | 1969-09-09 | Webster Electric Co Inc | Hydraulic flow controlling apparatus |
GB1385099A (en) * | 1972-08-25 | 1975-02-26 | Coventry Climax Eng Ltd | Industrial fork lift truck |
FR2294350A1 (fr) * | 1974-12-12 | 1976-07-09 | Int Harvester Co | Dispositif de commande automatique de repartition de liquide sous pression d'une source sur plusieurs circuits hydrauliques de rangs differents |
US3979908A (en) * | 1975-09-29 | 1976-09-14 | The Cessna Aircraft Company | Priority flow valve |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1550625A1 (de) * | 1966-04-05 | 1969-07-10 | Zahnradfabrik Friedrichshafen | Selbsttaetiges Steuerventil fuer Hydraulikanlagen,insbesondere fuer Kraftfahrzeuge |
US3996742A (en) * | 1976-03-04 | 1976-12-14 | Trw Inc. | Fluid flow control apparatus |
-
1976
- 1976-12-22 US US05/753,250 patent/US4070857A/en not_active Expired - Lifetime
-
1977
- 1977-07-07 GB GB28476/77A patent/GB1531125A/en not_active Expired
- 1977-09-12 CA CA286,493A patent/CA1044568A/fr not_active Expired
- 1977-10-12 DE DE2745937A patent/DE2745937C2/de not_active Expired
- 1977-10-13 FR FR7730879A patent/FR2375472A1/fr active Granted
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2892311A (en) * | 1958-01-08 | 1959-06-30 | Deere & Co | Hydraulic apparatus |
US3355994A (en) * | 1966-01-13 | 1967-12-05 | New York Air Brake Co | Hydraulic system |
US3465519A (en) * | 1967-08-18 | 1969-09-09 | Webster Electric Co Inc | Hydraulic flow controlling apparatus |
US3456560A (en) * | 1968-02-01 | 1969-07-22 | Racine Hydraulics Inc | Selective priority flow control system |
GB1385099A (en) * | 1972-08-25 | 1975-02-26 | Coventry Climax Eng Ltd | Industrial fork lift truck |
FR2294350A1 (fr) * | 1974-12-12 | 1976-07-09 | Int Harvester Co | Dispositif de commande automatique de repartition de liquide sous pression d'une source sur plusieurs circuits hydrauliques de rangs differents |
US3979908A (en) * | 1975-09-29 | 1976-09-14 | The Cessna Aircraft Company | Priority flow valve |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2470406A1 (fr) * | 1979-11-27 | 1981-05-29 | Rexroth Sigma | Dispositif de regulation du debit d'un fluide, notamment hydraulique |
Also Published As
Publication number | Publication date |
---|---|
GB1531125A (en) | 1978-11-01 |
US4070857A (en) | 1978-01-31 |
DE2745937C2 (de) | 1986-11-06 |
FR2375472B1 (fr) | 1983-10-28 |
CA1044568A (fr) | 1978-12-19 |
DE2745937A1 (de) | 1978-07-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CA | Change of address | ||
CD | Change of name or company name | ||
ST | Notification of lapse |