EP1188934A3 - Control device for an hydraulic volume flow - Google Patents
Control device for an hydraulic volume flow Download PDFInfo
- Publication number
- EP1188934A3 EP1188934A3 EP01121812A EP01121812A EP1188934A3 EP 1188934 A3 EP1188934 A3 EP 1188934A3 EP 01121812 A EP01121812 A EP 01121812A EP 01121812 A EP01121812 A EP 01121812A EP 1188934 A3 EP1188934 A3 EP 1188934A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- control device
- volume flow
- hydraulic
- hydraulic volume
- hydraulic motor
- 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- Withdrawn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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/003—Systems with 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
- 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
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Die Erfindung geht aus von einer Steuerungsvorrichtung für einen in einem Hydrauliksystem fließenden Volumenstrom eines Hydraulikmittels zumindest eines belasteten Arbeitsmittels (12), insbesondere zum Heben und Senken einer Last, mit zumindest einem Sperrventil (18) und zumindest einem Hydromotor (20).The invention relates to a control device for a volume flow flowing in a hydraulic system Hydraulic fluid of at least one loaded working fluid (12), in particular for lifting and lowering a load, with at least a check valve (18) and at least one hydraulic motor (20).
Es wird vorgeschlagen, daß in dem Hydrauliksystem zwischen dem Arbeitsmittel (12) und dem Hydromotor (20) ein Druckminderventil (22) so angeordnet ist, daß es beim Senken der Last den am Hydromotor (20) anstehenden Druck verringert. It is proposed that a pressure reducing valve (22) be arranged in the hydraulic system between the working medium (12) and the hydraulic motor (20) in such a way that it reduces the pressure on the hydraulic motor (20) when the load is lowered.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000145213 DE10045213A1 (en) | 2000-09-13 | 2000-09-13 | Control device for a hydraulic volume flow |
DE10045213 | 2000-09-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1188934A2 EP1188934A2 (en) | 2002-03-20 |
EP1188934A3 true EP1188934A3 (en) | 2004-01-21 |
Family
ID=7656011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01121812A Withdrawn EP1188934A3 (en) | 2000-09-13 | 2001-09-11 | Control device for an hydraulic volume flow |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1188934A3 (en) |
DE (1) | DE10045213A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE525159C2 (en) * | 2002-06-05 | 2004-12-14 | Bt Ind Ab | Procedure for controlling the lowering movement of a truck's air cylinder |
DE102004039848A1 (en) * | 2004-08-17 | 2006-03-09 | Jungheinrich Ag | Fluid circuit and truck with fluid circuit |
DE102007027567B4 (en) | 2007-06-15 | 2018-03-01 | Robert Bosch Gmbh | Control arrangement with pipe rupture function |
US11009048B1 (en) | 2020-09-09 | 2021-05-18 | Robert Bosch Gmbh | Boom lift system |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2493111A (en) * | 1945-02-01 | 1950-01-03 | Weatherhead Co | Pressure regulator |
US2594626A (en) * | 1946-09-09 | 1952-04-29 | Clarence E Earle | Safety valve |
CH405851A (en) * | 1963-11-27 | 1966-01-15 | Gunzenhauser Ag J & R | Pressure reducing valve |
DE2618046A1 (en) * | 1976-04-24 | 1977-11-10 | Sven O I Jonsson | Stored energy utilisation system - has hydraulic motor driven by lowering pressure coupled to dynamo recharging battery |
SU735560A1 (en) * | 1978-09-19 | 1980-05-25 | Горьковский Институт Инженеров Водного Транспорта | Electric hydraulic drive of floor-mounted load-handling device |
AU7232781A (en) * | 1981-02-13 | 1982-08-19 | Groh West Pty. Ltd. | Dual circuit pressure equalising valve |
JPS6068410A (en) * | 1983-09-22 | 1985-04-19 | Nachi Fujikoshi Corp | Reversible reducing valve |
DE4140408A1 (en) * | 1991-12-07 | 1993-06-09 | Robert Bosch Gmbh, 7000 Stuttgart, De | Electrohydraulic control of linear hydraulic actuator - has proportional flow control valve responding to pressure feedback to provide load compensating action |
US5419411A (en) * | 1990-04-25 | 1995-05-30 | Kaisei Kogyo K.K. | Energy conservation type hydraulic elevator and speed control method of hydraulic elevator |
JPH11165995A (en) * | 1997-12-05 | 1999-06-22 | Toyota Autom Loom Works Ltd | Hydraulic system in battery industrial vehicle |
-
2000
- 2000-09-13 DE DE2000145213 patent/DE10045213A1/en not_active Withdrawn
-
2001
- 2001-09-11 EP EP01121812A patent/EP1188934A3/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2493111A (en) * | 1945-02-01 | 1950-01-03 | Weatherhead Co | Pressure regulator |
US2594626A (en) * | 1946-09-09 | 1952-04-29 | Clarence E Earle | Safety valve |
CH405851A (en) * | 1963-11-27 | 1966-01-15 | Gunzenhauser Ag J & R | Pressure reducing valve |
DE2618046A1 (en) * | 1976-04-24 | 1977-11-10 | Sven O I Jonsson | Stored energy utilisation system - has hydraulic motor driven by lowering pressure coupled to dynamo recharging battery |
SU735560A1 (en) * | 1978-09-19 | 1980-05-25 | Горьковский Институт Инженеров Водного Транспорта | Electric hydraulic drive of floor-mounted load-handling device |
AU7232781A (en) * | 1981-02-13 | 1982-08-19 | Groh West Pty. Ltd. | Dual circuit pressure equalising valve |
JPS6068410A (en) * | 1983-09-22 | 1985-04-19 | Nachi Fujikoshi Corp | Reversible reducing valve |
US5419411A (en) * | 1990-04-25 | 1995-05-30 | Kaisei Kogyo K.K. | Energy conservation type hydraulic elevator and speed control method of hydraulic elevator |
DE4140408A1 (en) * | 1991-12-07 | 1993-06-09 | Robert Bosch Gmbh, 7000 Stuttgart, De | Electrohydraulic control of linear hydraulic actuator - has proportional flow control valve responding to pressure feedback to provide load compensating action |
JPH11165995A (en) * | 1997-12-05 | 1999-06-22 | Toyota Autom Loom Works Ltd | Hydraulic system in battery industrial vehicle |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 009, no. 207 (P - 382) 24 August 1985 (1985-08-24) * |
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 11 30 September 1999 (1999-09-30) * |
Also Published As
Publication number | Publication date |
---|---|
DE10045213A1 (en) | 2002-03-28 |
EP1188934A2 (en) | 2002-03-20 |
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18D | Application deemed to be withdrawn |
Effective date: 20061010 |