DE4220656A1 - Hydraulische schaltung - Google Patents

Hydraulische schaltung

Info

Publication number
DE4220656A1
DE4220656A1 DE4220656A DE4220656A DE4220656A1 DE 4220656 A1 DE4220656 A1 DE 4220656A1 DE 4220656 A DE4220656 A DE 4220656A DE 4220656 A DE4220656 A DE 4220656A DE 4220656 A1 DE4220656 A1 DE 4220656A1
Authority
DE
Germany
Prior art keywords
valve
control
hydraulic
pressure
pressure relief
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Withdrawn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
DE4220656A
Other languages
German (de)
English (en)
Inventor
Rudolf Becker
Otwin Dr Eich
Horst Kahl
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.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik 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 Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of DE4220656A1 publication Critical patent/DE4220656A1/de
Withdrawn legal-status Critical Current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
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
DE4220656A 1991-06-27 1992-06-24 Hydraulische schaltung Withdrawn DE4220656A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4121235 1991-06-27

Publications (1)

Publication Number Publication Date
DE4220656A1 true DE4220656A1 (de) 1993-01-07

Family

ID=6434866

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4220656A Withdrawn DE4220656A1 (de) 1991-06-27 1992-06-24 Hydraulische schaltung

Country Status (4)

Country Link
DE (1) DE4220656A1 (it)
FR (1) FR2678323B1 (it)
GB (1) GB2257270B (it)
IT (1) IT1255170B (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4396524T1 (de) * 1992-12-08 1995-10-19 Komatsu Mfg Co Ltd Hydraulikkreis zum Einsatz in Schwenkmechanismen
US6499296B1 (en) 1998-07-24 2002-12-31 Mannesmann Rexroth Ag Hydraulic circuit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB814618A (en) * 1955-04-29 1959-06-10 New York Air Brake Co Hydraulic control systems more particularly for bulldozers and the like
NL143015B (nl) * 1970-09-11 1974-08-15 Koppen Lethem Trading Drukregelende tweeweg-afsluiter voor een hydraulisch circuit.
US3646959A (en) * 1970-10-12 1972-03-07 Sperry Rand Corp Power transmission
GB2013841A (en) * 1978-01-30 1979-08-15 Caterpillar Tractor Co Work fluid system
JPS5663102A (en) * 1979-10-29 1981-05-29 Kobe Steel Ltd Turning oil-pressure circuit for oil-pressure shovel, etc.
JPS60249706A (ja) * 1984-05-22 1985-12-10 Toshiba Mach Co Ltd 油圧制御装置
JPS612908A (ja) * 1984-06-14 1986-01-08 Toshiba Mach Co Ltd 制御弁装置
WO1986004963A1 (en) * 1985-02-23 1986-08-28 Barmag Barmer Maschinenfabrik Aktiengesellschaft Proportional valve with variable pre-loading of the balance spring non-proportionally to the load pressure
JPH076525B2 (ja) * 1987-01-09 1995-01-30 株式会社神戸製鋼所 建設機械の旋回油圧回路
US5129229A (en) * 1990-06-19 1992-07-14 Hitachi Construction Machinery Co., Ltd. Hydraulic drive system for civil-engineering and construction machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4396524T1 (de) * 1992-12-08 1995-10-19 Komatsu Mfg Co Ltd Hydraulikkreis zum Einsatz in Schwenkmechanismen
US6499296B1 (en) 1998-07-24 2002-12-31 Mannesmann Rexroth Ag Hydraulic circuit

Also Published As

Publication number Publication date
GB2257270A (en) 1993-01-06
GB2257270B (en) 1995-08-30
GB9213679D0 (en) 1992-08-12
ITMI921550A0 (it) 1992-06-24
FR2678323A1 (fr) 1992-12-31
ITMI921550A1 (it) 1993-12-24
FR2678323B1 (fr) 1996-02-16
IT1255170B (it) 1995-10-20

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination