IT8068841A0 - Valvola riduttrice di pressione pilotata - Google Patents

Valvola riduttrice di pressione pilotata

Info

Publication number
IT8068841A0
IT8068841A0 IT8068841A IT6884180A IT8068841A0 IT 8068841 A0 IT8068841 A0 IT 8068841A0 IT 8068841 A IT8068841 A IT 8068841A IT 6884180 A IT6884180 A IT 6884180A IT 8068841 A0 IT8068841 A0 IT 8068841A0
Authority
IT
Italy
Prior art keywords
pressure reducing
reducing valve
pilot operated
operated pressure
pilot
Prior art date
Application number
IT8068841A
Other languages
English (en)
Other versions
IT1130546B (it
Inventor
Karlheinz Hunschede
Helmut Krebs
Original Assignee
Rexroth Gmbh G L
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 Rexroth Gmbh G L filed Critical Rexroth Gmbh G L
Publication of IT8068841A0 publication Critical patent/IT8068841A0/it
Application granted granted Critical
Publication of IT1130546B publication Critical patent/IT1130546B/it

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
    • G05D16/166—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using pistons within the main valve
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/101—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the controller being arranged as a multiple-way valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2559—Self-controlled branched flow systems
    • Y10T137/2574—Bypass or relief controlled by main line fluid condition
    • Y10T137/2605—Pressure responsive
    • Y10T137/2607—With pressure reducing inlet valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y10T137/86614—Electric
IT68841/80A 1979-12-12 1980-12-03 Valvola riduttrice di pressione pilotata IT1130546B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2949922A DE2949922C2 (de) 1979-12-12 1979-12-12 Vorgesteuertes Druckminderventil

Publications (2)

Publication Number Publication Date
IT8068841A0 true IT8068841A0 (it) 1980-12-03
IT1130546B IT1130546B (it) 1986-06-18

Family

ID=6088230

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68841/80A IT1130546B (it) 1979-12-12 1980-12-03 Valvola riduttrice di pressione pilotata

Country Status (5)

Country Link
US (1) US4321941A (it)
JP (1) JPS5697111A (it)
DE (1) DE2949922C2 (it)
GB (1) GB2065928B (it)
IT (1) IT1130546B (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1144395B (it) * 1981-07-17 1986-10-29 Fiat Auto Spa Valvola elettroidraulica di controllo della pressione
EP0229841B1 (en) * 1985-06-12 1993-04-21 Daikin Industries, Limited Reducing valve
JPS61285513A (ja) * 1985-06-12 1986-12-16 Daikin Ind Ltd 減圧弁
JPS61285512A (ja) * 1985-06-12 1986-12-16 Daikin Ind Ltd 減圧弁
JPH0544626Y2 (it) * 1988-05-25 1993-11-12
FR2715484B1 (fr) * 1994-01-21 1996-02-23 Chateaudun Hydraulique Servovalve de régulation de pression.
US5722459A (en) * 1995-05-31 1998-03-03 Hyundai Motor Company Pressure control valve of a hydraulic control system of an automatic transmission
DE19615789A1 (de) * 1996-04-20 1997-10-23 Rexroth Mannesmann Gmbh Vorgesteuertes 3-Wege-Druckregelventil
NZ331537A (en) * 1996-04-29 1999-07-29 Dresser Ind Pilot-operated safety relief valve assembly
US6145308A (en) * 1998-12-22 2000-11-14 Hamilton Sundstrand Corporation Air turbine with power controller having operation independent of temperature
US6126138A (en) * 1998-12-30 2000-10-03 Hamilton Sundstrand Corporation Pressure reducing valve and continuously variable transmission with control arrangement using same
GR990100247A (el) * 1999-07-16 2001-03-30 Μηχανισμος ελεγχου ροης ρευστων
WO2001098694A1 (fr) * 2000-06-12 2001-12-27 Jianran Ma Soupape de retenue assurant une limitation du debit multiniveau dont la configuration est en gradins
US6904937B2 (en) * 2002-12-11 2005-06-14 Delphi Technologies, Inc. Switchable fluid control valve system
JP6417353B2 (ja) * 2016-03-30 2018-11-07 日立建機株式会社 減圧弁ユニット

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2225916A (en) * 1940-12-24 Fluid pressure regulating device
US3115147A (en) * 1962-02-28 1963-12-24 Robertshaw Controls Co Pneumatic hesitation relay
US3326228A (en) * 1963-03-06 1967-06-20 Robertshaw Controls Co Pneumatic relay
US3489163A (en) * 1967-07-24 1970-01-13 Racine Hydraulics Inc Pressure reducing valve
US3583422A (en) * 1967-10-19 1971-06-08 Zahnradfabrik Friedrichshafen Valve construction for controlled pressure buildup in fluid-operated brake or clutch
DE2903560C2 (de) * 1979-01-31 1982-12-16 Mannesmann Rexroth GmbH, 8770 Lohr Vorgesteuertes 3-Wege-Druckminderventil

Also Published As

Publication number Publication date
DE2949922C2 (de) 1986-08-21
IT1130546B (it) 1986-06-18
DE2949922A1 (de) 1981-06-19
GB2065928B (en) 1983-06-22
GB2065928A (en) 1981-07-01
JPS5697111A (en) 1981-08-05
US4321941A (en) 1982-03-30

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