EP2541071A3 - Valve assembly for a hydraulic control system - Google Patents
Valve assembly for a hydraulic control system Download PDFInfo
- Publication number
- EP2541071A3 EP2541071A3 EP12004137.1A EP12004137A EP2541071A3 EP 2541071 A3 EP2541071 A3 EP 2541071A3 EP 12004137 A EP12004137 A EP 12004137A EP 2541071 A3 EP2541071 A3 EP 2541071A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- connection
- control system
- hydraulic control
- valve assembly
- pressure
- 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
- F15B11/006—Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link
-
- 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
- F15B2211/20576—Systems with pumps with multiple pumps
- F15B2211/20592—Combinations of pumps for supplying high and low 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/30575—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve in a Wheatstone Bridge arrangement (also half bridges)
-
- 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
- F15B2211/41—Flow control characterised by the positions of the valve element
- F15B2211/413—Flow 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
- F15B2211/40—Flow control
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41563—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source 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
- F15B2211/45—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
- F15B2211/70—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
- F15B2211/7053—Double-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)
- Valve Housings (AREA)
Abstract
Die vorliegende Anmeldung zeigt eine Ventilanordnung für ein hydraulisches Steuerungssystem zum Ansteuern eines hydraulischen Verbrauchers (11), mit einem Druckanschluss (P) zur Verbindung mit einer Druckversorgung, einem Tankanschluss (T) zur Verbindung mit einer Rücklaufleitung, und zwei Verbraucheranschlüssen (A, B) zur Verbindung mit den Anschlüssen des hydraulischen Verbrauchers, wobei zur Ansteuerung der Verbindung der beiden Verbraucheranschlüsse mit Druckanschluss und Tankanschluss mindestens zwei separate Ventile (1, 2, 3, 4) eingesetzt werden. Dabei umfasst die Ventilanordnung ein Ventil (5) zur Verbindung von Druckanschluss und Tankanschluss. The present application shows a valve arrangement for a hydraulic control system for actuating a hydraulic consumer (11), having a pressure connection (P) for connection to a pressure supply, a tank connection (T) for connection to a return line, and two consumer connections (A, B) for connection to the terminals of the hydraulic consumer, wherein at least two separate valves (1, 2, 3, 4) are used to control the connection of the two consumer connections with pressure connection and tank connection. In this case, the valve arrangement comprises a valve (5) for connecting the pressure connection and the tank connection.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011106081 | 2011-06-30 | ||
CH01393/11A CH705150A1 (en) | 2011-06-30 | 2011-08-25 | Valve arrangement for hydraulic control system for controlling e.g. hydraulic cylinder for lifting extension arm of crane, has valve i.e. separate valve, connecting pressure connection and tank connection |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2541071A2 EP2541071A2 (en) | 2013-01-02 |
EP2541071A3 true EP2541071A3 (en) | 2016-12-07 |
EP2541071B1 EP2541071B1 (en) | 2020-11-11 |
Family
ID=46245447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12004137.1A Active EP2541071B1 (en) | 2011-06-30 | 2012-05-29 | Valve assembly for a hydraulic control system |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2541071B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105987036B (en) * | 2015-02-05 | 2018-01-09 | 徐工集团工程机械股份有限公司 | Supporting leg control combination valve, hydraulic system and crane |
WO2023080930A1 (en) * | 2021-11-08 | 2023-05-11 | Pdc Machines Inc. | High-throughput diaphragm compressor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3411536A (en) * | 1966-07-06 | 1968-11-19 | Koehring Co | Pilot operated control valve mechanism |
EP0211497B1 (en) * | 1985-06-24 | 1990-06-06 | Fluidcircuit Technologies, Inc. | Improved fluid power control system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19500749C2 (en) * | 1995-01-12 | 2000-12-07 | Danfoss As | Three-way or multi-way valve |
US6467264B1 (en) * | 2001-05-02 | 2002-10-22 | Husco International, Inc. | Hydraulic circuit with a return line metering valve and method of operation |
-
2012
- 2012-05-29 EP EP12004137.1A patent/EP2541071B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3411536A (en) * | 1966-07-06 | 1968-11-19 | Koehring Co | Pilot operated control valve mechanism |
EP0211497B1 (en) * | 1985-06-24 | 1990-06-06 | Fluidcircuit Technologies, Inc. | Improved fluid power control system |
Also Published As
Publication number | Publication date |
---|---|
EP2541071A2 (en) | 2013-01-02 |
EP2541071B1 (en) | 2020-11-11 |
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