EP1188934A3 - Control device for an hydraulic volume flow - Google Patents

Control device for an hydraulic volume flow Download PDF

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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Withdrawn
Application number
EP01121812A
Other languages
German (de)
French (fr)
Other versions
EP1188934A2 (en
Inventor
Joerg Siebert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1188934A2 publication Critical patent/EP1188934A2/en
Publication of EP1188934A3 publication Critical patent/EP1188934A3/en
Withdrawn legal-status Critical Current

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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

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  • 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.

Figure 00000001
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.
Figure 00000001
EP01121812A 2000-09-13 2001-09-11 Control device for an hydraulic volume flow Withdrawn EP1188934A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10045213 2000-09-13
DE2000145213 DE10045213A1 (en) 2000-09-13 2000-09-13 Control device for a hydraulic volume flow

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (10)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
EP1188934A2 (en) 2002-03-20
DE10045213A1 (en) 2002-03-28

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