EP0502411A3 - Hydraulic system for controlling a loaddriven actuator - Google Patents
Hydraulic system for controlling a loaddriven actuator Download PDFInfo
- Publication number
- EP0502411A3 EP0502411A3 EP19920103245 EP92103245A EP0502411A3 EP 0502411 A3 EP0502411 A3 EP 0502411A3 EP 19920103245 EP19920103245 EP 19920103245 EP 92103245 A EP92103245 A EP 92103245A EP 0502411 A3 EP0502411 A3 EP 0502411A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- loaddriven
- actuator
- controlling
- hydraulic system
- hydraulic
- 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.)
- Withdrawn
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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an 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
- F15B2211/20—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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
-
- 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
- F15B2211/40—Flow control
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41572—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and an 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
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
-
- 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
- F15B2211/40—Flow control
- F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow 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
- F15B2211/505—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
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/615—Filtering 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/625—Accumulators
-
- 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
- F15B2211/7052—Single-acting output members
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Servomotors (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4106845A DE4106845A1 (en) | 1991-03-04 | 1991-03-04 | HYDRAULIC SYSTEM FOR CONTROLLING A POWER MOVING A CONSUMER |
DE4106845 | 1991-03-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0502411A2 EP0502411A2 (en) | 1992-09-09 |
EP0502411A3 true EP0502411A3 (en) | 1993-02-03 |
Family
ID=6426425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920103245 Withdrawn EP0502411A3 (en) | 1991-03-04 | 1992-02-26 | Hydraulic system for controlling a loaddriven actuator |
Country Status (3)
Country | Link |
---|---|
US (1) | US5355773A (en) |
EP (1) | EP0502411A3 (en) |
DE (1) | DE4106845A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4235111A1 (en) * | 1992-10-17 | 1994-04-21 | Bayerische Motoren Werke Ag | Pneumatic line valve arrangement for vehicular levelling system - includes relief valve with control lines from upstream and downstream sides of non-return valve supplying pneumatic cylinder |
US5359836A (en) * | 1993-02-01 | 1994-11-01 | Control Concepts, Inc. | Agricultural harvester with closed loop header control |
DE4416194A1 (en) * | 1994-05-06 | 1995-11-09 | Rexroth Mannesmann Gmbh | Control system for hydraulically actuated unit |
IE980677A1 (en) * | 1997-08-25 | 1999-03-10 | Millers Mechanical Nz Ltd Port | A control system |
AT408208B (en) * | 2000-02-22 | 2001-09-25 | Hoerbiger Hydraulik | ARRANGEMENT FOR HYDRAULICALLY OPERATING A MOVING PART ON VEHICLES, IN PARTICULAR A COVER, A REAR COVER, A HATCH, OR THE LIKE. |
EP1275854A1 (en) * | 2001-07-09 | 2003-01-15 | Herion Systemtechnik GmbH | Method and hydraulic driving device for an overload work condition protection of a clutch-brake combination powered mechanical press |
DE20205231U1 (en) | 2002-04-04 | 2002-06-06 | MULAG FAHRZEUGWERK Heinz Wössner GmbH & Co. KG, 77728 Oppenau | hydraulic circuit |
DE20208577U1 (en) * | 2002-06-03 | 2003-12-11 | Hawe Hydraulik Gmbh & Co. Kg | Electro-hydraulic lift control device for industrial trucks |
DE10227966A1 (en) * | 2002-06-22 | 2004-01-08 | Deere & Company, Moline | Hydraulic control arrangement for a mobile machine |
DE10261225B4 (en) * | 2002-12-20 | 2006-11-16 | Dorma Gmbh + Co. Kg | Electrohydraulic servo door drive for driving a door, a window or the like |
DE102004039848A1 (en) * | 2004-08-17 | 2006-03-09 | Jungheinrich Ag | Fluid circuit and truck with fluid circuit |
US7647753B2 (en) * | 2006-12-30 | 2010-01-19 | Headsight, Inc. | Header height control system and method |
JP5801618B2 (en) * | 2011-06-21 | 2015-10-28 | カヤバ工業株式会社 | Boom sprayer and boom damping device |
DE102013004142A1 (en) * | 2013-03-09 | 2014-09-11 | Hydac Filtertechnik Gmbh | filter means |
EP2835540B1 (en) * | 2013-08-08 | 2016-04-27 | HAWE Hydraulik SE | Hydraulic drive |
US11371535B2 (en) * | 2018-04-09 | 2022-06-28 | Eagle Industry Co., Ltd. | Fluid pressure circuit |
WO2021261051A1 (en) * | 2020-06-22 | 2021-12-30 | 日立建機株式会社 | Construction machine |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2024328A1 (en) * | 1969-05-19 | 1970-12-17 | ||
DE1937346A1 (en) * | 1967-12-28 | 1971-02-04 | Bosch Gmbh Robert | Hydraulic lifting device on combine harvesters |
US3597907A (en) * | 1965-02-15 | 1971-08-10 | Love Co J E | Header elevational control system for crop-harvesting machine |
US4276811A (en) * | 1972-11-08 | 1981-07-07 | Control Concepts, Inc. | Closed center programmed valve system with load sense |
US4276810A (en) * | 1972-11-08 | 1981-07-07 | Control Concepts, Inc. | Programmed valve system used for positioning control |
US4401009A (en) * | 1972-11-08 | 1983-08-30 | Control Concepts, Inc. | Closed center programmed valve system with load sense |
US4622803A (en) * | 1984-06-28 | 1986-11-18 | J. I. Case Company | Header flotation |
US4873817A (en) * | 1988-08-01 | 1989-10-17 | United Technologies Automotive, Inc. | Electrically controlled pressure relief valve system and method |
-
1991
- 1991-03-04 DE DE4106845A patent/DE4106845A1/en active Granted
-
1992
- 1992-02-26 EP EP19920103245 patent/EP0502411A3/en not_active Withdrawn
- 1992-02-28 US US07/843,500 patent/US5355773A/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3597907A (en) * | 1965-02-15 | 1971-08-10 | Love Co J E | Header elevational control system for crop-harvesting machine |
DE1937346A1 (en) * | 1967-12-28 | 1971-02-04 | Bosch Gmbh Robert | Hydraulic lifting device on combine harvesters |
DE2024328A1 (en) * | 1969-05-19 | 1970-12-17 | ||
US4276811A (en) * | 1972-11-08 | 1981-07-07 | Control Concepts, Inc. | Closed center programmed valve system with load sense |
US4276810A (en) * | 1972-11-08 | 1981-07-07 | Control Concepts, Inc. | Programmed valve system used for positioning control |
US4401009A (en) * | 1972-11-08 | 1983-08-30 | Control Concepts, Inc. | Closed center programmed valve system with load sense |
US4622803A (en) * | 1984-06-28 | 1986-11-18 | J. I. Case Company | Header flotation |
US4873817A (en) * | 1988-08-01 | 1989-10-17 | United Technologies Automotive, Inc. | Electrically controlled pressure relief valve system and method |
Also Published As
Publication number | Publication date |
---|---|
US5355773A (en) | 1994-10-18 |
EP0502411A2 (en) | 1992-09-09 |
DE4106845A1 (en) | 1992-09-24 |
DE4106845C2 (en) | 1993-03-04 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 19930604 |
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17Q | First examination report despatched |
Effective date: 19930914 |
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GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
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GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19970304 |