FR2214054A1 - - Google Patents
Info
- Publication number
- FR2214054A1 FR2214054A1 FR7346983A FR7346983A FR2214054A1 FR 2214054 A1 FR2214054 A1 FR 2214054A1 FR 7346983 A FR7346983 A FR 7346983A FR 7346983 A FR7346983 A FR 7346983A FR 2214054 A1 FR2214054 A1 FR 2214054A1
- Authority
- FR
- France
- 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
-
- 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
- F15B2211/30505—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
- F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple 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
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/327—Directional 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
- F15B2211/405—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
- F15B2211/41581—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a 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
- F15B2211/40—Flow control
- F15B2211/46—Control of flow in the return line, i.e. meter-out 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
- F15B2211/50—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
- F15B2211/55—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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
- F15B2211/7128—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in parallel
-
- 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
- F15B2211/75—Control of speed of the output member
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Forklifts And Lifting Vehicles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2301648A DE2301648A1 (en) | 1973-01-13 | 1973-01-13 | HYDRAULIC CONTROL DEVICE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2214054A1 true FR2214054A1 (en) | 1974-08-09 |
FR2214054B1 FR2214054B1 (en) | 1976-10-08 |
Family
ID=5868945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7346983A Expired FR2214054B1 (en) | 1973-01-13 | 1973-12-28 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3851566A (en) |
JP (1) | JPS5047082A (en) |
DE (1) | DE2301648A1 (en) |
FR (1) | FR2214054B1 (en) |
GB (1) | GB1395143A (en) |
IT (1) | IT1006719B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0693390A1 (en) * | 1994-07-20 | 1996-01-24 | Applied Power Inc. | Hydraulic circuit |
US5666809A (en) * | 1994-07-20 | 1997-09-16 | Applied Power Inc. | Hydraulic circuit |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3968732A (en) * | 1972-11-10 | 1976-07-13 | Fitzgerald William Maurice Bar | Hydraulic power transmission system |
SE381919B (en) * | 1973-10-24 | 1975-12-22 | Atlas Copco Ab | WAY TO REGULATE THE HYDRAULIC BRAKE MOVEMENTS AND DEVICE FOR IMPLEMENTING THE KIT |
DE2457451A1 (en) * | 1974-12-05 | 1976-06-10 | Bosch Gmbh Robert | HYDRAULIC CONTROL DEVICE |
US4161256A (en) * | 1977-10-04 | 1979-07-17 | Cascade Corporation | Fluid power system having multiple, separately controllable double-acting fluid motors and reduced number of fluid conduits |
DE2945120A1 (en) * | 1979-11-08 | 1981-05-14 | Mogilevskij avtomobil'njy zavod imeni S.M. Kirova, Mogilev | Multi-motor hydraulic or pneumatic drive - has two mains common to all motors controlled by distributor |
FI64842C (en) * | 1982-03-16 | 1984-01-10 | Valmet Oy | ANORDNING FOER ATT SPARA ENERGI I EN HYDRAULKRETS |
DE3346184A1 (en) * | 1983-12-21 | 1985-07-04 | Mannesmann Rexroth GmbH, 8770 Lohr | Control block with a plurality of directional control valves |
US4836088A (en) * | 1985-08-21 | 1989-06-06 | Rome Industries, Inc. | Directional control valve and regeneration valve |
JP2517524Y2 (en) * | 1993-11-09 | 1996-11-20 | 和仁 大野 | Concrete sewage basin |
DE4407739C1 (en) * | 1994-03-08 | 1995-07-20 | Daimler Benz Ag | Actuating system for hydraulic drive elements of a folding top that can be controlled by switching means |
US6715402B2 (en) * | 2002-02-26 | 2004-04-06 | Husco International, Inc. | Hydraulic control circuit for operating a split actuator mechanical mechanism |
DE102004006683A1 (en) * | 2004-02-11 | 2005-09-01 | Zf Friedrichshafen Ag | switching unit |
US7827787B2 (en) | 2007-12-27 | 2010-11-09 | Deere & Company | Hydraulic system |
DE102008053061A1 (en) * | 2008-10-24 | 2010-04-29 | Hydac System Gmbh | Hydromechanical support device, particularly for holding working platforms erected on floor space in desired alignment position, comprises hydraulic system which has preselection valve which is upstream hydraulic cylinders |
UA110988C2 (en) | 2011-08-05 | 2016-03-10 | Пресіжн Плентінг Елелсі | Apparatus, systems and methods for controlling the downforce of an agricultural implement having multiple row units |
GB201319154D0 (en) * | 2013-10-30 | 2013-12-11 | Agco Int Gmbh | Hydraulic system supply |
CN115342091A (en) * | 2021-05-12 | 2022-11-15 | 哈威油液压技术(无锡)有限公司 | Hydraulic control system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3443483A (en) * | 1966-05-06 | 1969-05-13 | Int Harvester Co | Pilot unloading hydraulic circuit |
US3520231A (en) * | 1968-10-23 | 1970-07-14 | Gen Signal Corp | Hydraulic supply systems with flow rate-limiting control |
US3550505A (en) * | 1969-05-07 | 1970-12-29 | Gen Signal Corp | Hydraulic system including two work circuits |
-
1973
- 1973-01-13 DE DE2301648A patent/DE2301648A1/en active Pending
- 1973-12-12 US US00422595A patent/US3851566A/en not_active Expired - Lifetime
- 1973-12-28 FR FR7346983A patent/FR2214054B1/fr not_active Expired
-
1974
- 1974-01-04 IT IT19067/74A patent/IT1006719B/en active
- 1974-01-11 GB GB141974A patent/GB1395143A/en not_active Expired
- 1974-01-14 JP JP49007473A patent/JPS5047082A/ja active Pending
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0693390A1 (en) * | 1994-07-20 | 1996-01-24 | Applied Power Inc. | Hydraulic circuit |
NL9401191A (en) * | 1994-07-20 | 1996-03-01 | Applied Power Inc | Hydraulic circuit. |
US5666809A (en) * | 1994-07-20 | 1997-09-16 | Applied Power Inc. | Hydraulic circuit |
US5682807A (en) * | 1994-07-20 | 1997-11-04 | Applied Power Inc. | Hydraulic circuit |
Also Published As
Publication number | Publication date |
---|---|
FR2214054B1 (en) | 1976-10-08 |
US3851566A (en) | 1974-12-03 |
JPS5047082A (en) | 1975-04-26 |
GB1395143A (en) | 1975-05-21 |
DE2301648A1 (en) | 1974-07-18 |
IT1006719B (en) | 1976-10-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |