DE50205586D1 - HYDRAULIC CONTROL ARRANGEMENT WITH A VALVE FOR CONTROLLING A SIMPLE HYDRAULIC CONSUMER AS REGARDS DIRECTION AND SPEED - Google Patents

HYDRAULIC CONTROL ARRANGEMENT WITH A VALVE FOR CONTROLLING A SIMPLE HYDRAULIC CONSUMER AS REGARDS DIRECTION AND SPEED

Info

Publication number
DE50205586D1
DE50205586D1 DE50205586T DE50205586T DE50205586D1 DE 50205586 D1 DE50205586 D1 DE 50205586D1 DE 50205586 T DE50205586 T DE 50205586T DE 50205586 T DE50205586 T DE 50205586T DE 50205586 D1 DE50205586 D1 DE 50205586D1
Authority
DE
Germany
Prior art keywords
consumer
load pressure
hydraulic
chamber
speed
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.)
Expired - Lifetime
Application number
DE50205586T
Other languages
German (de)
Inventor
Peter Buettner
Tatu Miikkulainen
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.)
Bosch Rexroth AG
Original Assignee
Bosch Rexroth AG
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 Bosch Rexroth AG filed Critical Bosch Rexroth AG
Priority to DE50205586T priority Critical patent/DE50205586D1/en
Application granted granted Critical
Publication of DE50205586D1 publication Critical patent/DE50205586D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
    • F15B13/0418—Load sensing elements sliding within a hollow main valve spool
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
    • F15B2013/006—Modular components with multiple uses, e.g. kits for either normally-open or normally-closed valves, interchangeable or reprogrammable manifolds

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Multiple-Way Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Servomotors (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

The aim of the invention is to improve a hydraulic control assembly comprising a directional control valve that can be proportionally adjusted, in such a way that even for a single-action hydraulic cylinder a significant increase in the lowering speed of the hydraulic consumer is prevented as the load pressure accumulates, in a simple manner. To achieve this, a measuring piston (82) can be subjected to a pressure prevailing in a first consumer chamber (38) during a displacement of a control piston (32) in the second direction. During the lowering operation, the load pressure prevailing in the first consumer chamber thus impinges on the measuring piston. The compensatory force thus created increases with the accumulating load pressure and displaces the control piston to reduce the flow rate cross-section between the first consumer chamber and the outlet chamber (44). A pressure differential, which increases by means of an accumulating load pressure can therefore be partially or wholly compensated, or even overcompensated by the reduction of the flow rate cross-section, thus limiting the lowering speed.
DE50205586T 2001-05-05 2002-04-11 HYDRAULIC CONTROL ARRANGEMENT WITH A VALVE FOR CONTROLLING A SIMPLE HYDRAULIC CONSUMER AS REGARDS DIRECTION AND SPEED Expired - Lifetime DE50205586D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50205586T DE50205586D1 (en) 2001-05-05 2002-04-11 HYDRAULIC CONTROL ARRANGEMENT WITH A VALVE FOR CONTROLLING A SIMPLE HYDRAULIC CONSUMER AS REGARDS DIRECTION AND SPEED

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10121924A DE10121924A1 (en) 2001-05-05 2001-05-05 Hydraulic control arrangement for controlling a single-acting hydraulic consumer with regard to direction and speed and directional valve therefor
PCT/EP2002/004022 WO2002090778A2 (en) 2001-05-05 2002-04-11 Hydraulic control assembly comprising a directional control valve for controlling the direction and speed of a single-action hydraulic consumer
DE50205586T DE50205586D1 (en) 2001-05-05 2002-04-11 HYDRAULIC CONTROL ARRANGEMENT WITH A VALVE FOR CONTROLLING A SIMPLE HYDRAULIC CONSUMER AS REGARDS DIRECTION AND SPEED

Publications (1)

Publication Number Publication Date
DE50205586D1 true DE50205586D1 (en) 2006-04-06

Family

ID=7683762

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10121924A Withdrawn DE10121924A1 (en) 2001-05-05 2001-05-05 Hydraulic control arrangement for controlling a single-acting hydraulic consumer with regard to direction and speed and directional valve therefor
DE50205586T Expired - Lifetime DE50205586D1 (en) 2001-05-05 2002-04-11 HYDRAULIC CONTROL ARRANGEMENT WITH A VALVE FOR CONTROLLING A SIMPLE HYDRAULIC CONSUMER AS REGARDS DIRECTION AND SPEED

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10121924A Withdrawn DE10121924A1 (en) 2001-05-05 2001-05-05 Hydraulic control arrangement for controlling a single-acting hydraulic consumer with regard to direction and speed and directional valve therefor

Country Status (5)

Country Link
EP (1) EP1386084B1 (en)
AT (1) ATE315728T1 (en)
DE (2) DE10121924A1 (en)
DK (1) DK1386084T3 (en)
WO (1) WO2002090778A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2311686A1 (en) * 2009-10-15 2011-04-20 Hyva International B.V. Tip valve
FI20115108L (en) 2011-02-03 2012-08-04 Parker Hannifin Mfg Finland Oy Directional valve with pressure control
DE102011120302A1 (en) * 2011-12-03 2013-06-06 Robert Bosch Gmbh Hydraulic directional control valve for the hoist of an agricultural vehicle
DE102013017093A1 (en) * 2013-10-15 2015-04-16 Hydac Filtertechnik Gmbh control device
CN105570220B (en) 2014-10-17 2017-08-11 徐工集团工程机械股份有限公司 Banked direction control valves and hydraulic flow shared system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19631803B4 (en) * 1996-08-07 2007-08-02 Bosch Rexroth Aktiengesellschaft Hydraulic control device

Also Published As

Publication number Publication date
ATE315728T1 (en) 2006-02-15
DK1386084T3 (en) 2006-05-22
WO2002090778A3 (en) 2003-02-20
EP1386084A2 (en) 2004-02-04
DE10121924A1 (en) 2002-11-07
WO2002090778A2 (en) 2002-11-14
EP1386084B1 (en) 2006-01-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition