FR2293612A1 - Dispositif de commande hydraulique - Google Patents
Dispositif de commande hydrauliqueInfo
- Publication number
- FR2293612A1 FR2293612A1 FR7537341A FR7537341A FR2293612A1 FR 2293612 A1 FR2293612 A1 FR 2293612A1 FR 7537341 A FR7537341 A FR 7537341A FR 7537341 A FR7537341 A FR 7537341A FR 2293612 A1 FR2293612 A1 FR 2293612A1
- Authority
- FR
- France
- Prior art keywords
- control device
- hydraulic control
- hydraulic
- control
- 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
- 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
- F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
-
- 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
- F15B2211/20538—Type of pump constant capacity
-
- 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
-
- 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
-
- 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
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
- F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
- F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
-
- 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
- F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means 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
- F15B2211/50—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
-
- 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
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a 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
- F15B2211/50—Pressure control
- F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief 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
- F15B2211/50—Pressure control
- F15B2211/57—Control of a differential 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
- F15B2211/60—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
-
- 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
-
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742457451 DE2457451A1 (de) | 1974-12-05 | 1974-12-05 | Hydraulische steuereinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2293612A1 true FR2293612A1 (fr) | 1976-07-02 |
FR2293612B3 FR2293612B3 (fr) | 1979-09-21 |
Family
ID=5932547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7537341A Granted FR2293612A1 (fr) | 1974-12-05 | 1975-12-05 | Dispositif de commande hydraulique |
Country Status (5)
Country | Link |
---|---|
US (1) | US3976097A (fr) |
JP (1) | JPS5852082B2 (fr) |
DE (1) | DE2457451A1 (fr) |
FR (1) | FR2293612A1 (fr) |
GB (1) | GB1488530A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2527194A1 (fr) * | 1982-04-07 | 1983-11-25 | Bosch Gmbh Robert | Appareil de commande et de distribution hydraulique, notamment pour les fonctions levage, abaissement et inclinaison sur un chariot elevateur a fourche |
EP0170815A1 (fr) * | 1984-07-10 | 1986-02-12 | Robert Bosch Gmbh | Dispositif de commande hydraulique |
FR2659399A1 (fr) * | 1990-02-26 | 1991-09-13 | Rexroth Mannesmann Gmbh | Commande de vanne independante de la charge, destinee a plusieurs recepteurs hydrauliques. |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2514624C3 (de) * | 1975-04-03 | 1986-10-23 | Danfoss A/S, Nordborg | Steuereinrichtung für mindestens einen hydraulisch betriebenen doppeltwirkenden Verbraucher |
US4149565A (en) * | 1977-02-02 | 1979-04-17 | International Harvester Company | Pilot controlled poppet valve assembly |
US4125974A (en) * | 1977-07-08 | 1978-11-21 | Harnischfeger Corporation | Control system for telescopic boom |
US4280397A (en) * | 1978-04-27 | 1981-07-28 | Joy Manufacturing Company | Hydraulic fluid control apparatus |
US4262554A (en) * | 1978-08-18 | 1981-04-21 | S.R.M. Hydromekanik Aktiebolag | Hydraulic valve system for controlling particularly a vehicle gearbox |
US4286692A (en) * | 1978-09-22 | 1981-09-01 | Clark Equipment Company | Hydraulic control system for operating multiple remote devices with a minimum number of connecting conduits |
US4244276A (en) * | 1979-07-16 | 1981-01-13 | Teijin Seiki Company Limited | Hydraulic circuit |
JPS58170902A (ja) * | 1982-03-30 | 1983-10-07 | Nippon Air Brake Co Ltd | 圧力補償弁付流量制御弁 |
EP0167818B1 (fr) * | 1984-07-10 | 1988-06-01 | Robert Bosch Gmbh | Dispositif de commande hydraulique |
DE3722083C1 (de) * | 1987-07-03 | 1988-09-15 | Heilmeier & Weinlein | Hydraulische Steuervorrichtung |
JP2706483B2 (ja) * | 1988-09-28 | 1998-01-28 | 日立建機株式会社 | 圧力制御弁 |
JP2828490B2 (ja) * | 1990-06-19 | 1998-11-25 | 日立建機株式会社 | ロードセンシング油圧駆動回路の制御装置 |
US5129229A (en) * | 1990-06-19 | 1992-07-14 | Hitachi Construction Machinery Co., Ltd. | Hydraulic drive system for civil-engineering and construction machine |
DK167322B1 (da) * | 1991-10-28 | 1993-10-11 | Danfoss As | Hydraulisk kredsloeb |
US5809862A (en) * | 1995-08-04 | 1998-09-22 | Dallman; Jimmie J. | Flotation control system |
DE19640100B4 (de) * | 1996-09-28 | 2005-07-14 | Sauer-Danfoss Holding Aps | Hydraulisches System |
DE19714141A1 (de) * | 1997-04-05 | 1998-10-08 | Mannesmann Rexroth Ag | Hydraulische Steueranordnung |
US7165486B2 (en) * | 2002-09-26 | 2007-01-23 | Spx Corporation | Apparatus and method for hydraulically controlling a vehicle restraint |
ATE391238T1 (de) * | 2004-06-24 | 2008-04-15 | Walvoil Spa | Load-sensing-hydrauliksystem mit mehreren sektionen |
CN102619803B (zh) * | 2012-03-31 | 2014-11-19 | 中联重科股份有限公司 | 并联阀组、液压控制回路和辅助装置 |
KR101487455B1 (ko) | 2013-05-08 | 2015-01-28 | 주식회사 유압사랑 | 부하 센싱 유압시스템용 유량 증대 회로 |
CN103352882B (zh) * | 2013-06-17 | 2016-01-20 | 三一汽车起重机械有限公司 | 支腿伸缩模式切换阀及工程机械 |
CN105370654B (zh) * | 2015-12-16 | 2017-05-17 | 日照海卓液压有限公司 | 六模式双油路供油*** |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3411295A (en) * | 1967-05-31 | 1968-11-19 | Gen Signal Corp | Hydraulic supply systems |
US3592216A (en) * | 1968-09-06 | 1971-07-13 | Borg Warner | Flow control valve |
US3520231A (en) * | 1968-10-23 | 1970-07-14 | Gen Signal Corp | Hydraulic supply systems with flow rate-limiting control |
DE2301648A1 (de) * | 1973-01-13 | 1974-07-18 | Bosch Gmbh Robert | Hydraulische steuereinrichtung |
US3815477A (en) * | 1973-02-06 | 1974-06-11 | Cross Mfg Inc | Control valve instrumentality |
-
1974
- 1974-12-05 DE DE19742457451 patent/DE2457451A1/de active Granted
-
1975
- 1975-09-22 GB GB38816/75A patent/GB1488530A/en not_active Expired
- 1975-12-02 JP JP50143808A patent/JPS5852082B2/ja not_active Expired
- 1975-12-04 US US05/637,855 patent/US3976097A/en not_active Expired - Lifetime
- 1975-12-05 FR FR7537341A patent/FR2293612A1/fr active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2527194A1 (fr) * | 1982-04-07 | 1983-11-25 | Bosch Gmbh Robert | Appareil de commande et de distribution hydraulique, notamment pour les fonctions levage, abaissement et inclinaison sur un chariot elevateur a fourche |
EP0170815A1 (fr) * | 1984-07-10 | 1986-02-12 | Robert Bosch Gmbh | Dispositif de commande hydraulique |
FR2659399A1 (fr) * | 1990-02-26 | 1991-09-13 | Rexroth Mannesmann Gmbh | Commande de vanne independante de la charge, destinee a plusieurs recepteurs hydrauliques. |
Also Published As
Publication number | Publication date |
---|---|
JPS5182880A (en) | 1976-07-20 |
US3976097A (en) | 1976-08-24 |
DE2457451A1 (de) | 1976-06-10 |
DE2457451C2 (fr) | 1987-08-13 |
JPS5852082B2 (ja) | 1983-11-19 |
GB1488530A (en) | 1977-10-12 |
FR2293612B3 (fr) | 1979-09-21 |
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