DE3049944A1 - Electrohydraulic proportional valve - Google Patents

Electrohydraulic proportional valve

Info

Publication number
DE3049944A1
DE3049944A1 DE803049944A DE3049944A DE3049944A1 DE 3049944 A1 DE3049944 A1 DE 3049944A1 DE 803049944 A DE803049944 A DE 803049944A DE 3049944 A DE3049944 A DE 3049944A DE 3049944 A1 DE3049944 A1 DE 3049944A1
Authority
DE
Germany
Prior art keywords
control
piston
main piston
reduced diameter
valve according
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Withdrawn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
DE803049944A
Other languages
German (de)
English (en)
Inventor
D Knutson
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.)
Dynex Rivett Inc
Original Assignee
Dynex Rivett Inc
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 Dynex Rivett Inc filed Critical Dynex Rivett Inc
Publication of DE3049944A1 publication Critical patent/DE3049944A1/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Withdrawn legal-status Critical Current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
    • F15B13/043—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 electrically-controlled pilot valves
    • F15B13/0435—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 electrically-controlled pilot valves the pilot valves being sliding valves
    • 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
    • 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
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87233—Biased exhaust valve
    • Y10T137/87241—Biased closed

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Magnetically Actuated Valves (AREA)
DE803049944A 1979-10-05 1980-10-03 Electrohydraulic proportional valve Withdrawn DE3049944A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/082,270 US4290447A (en) 1979-10-05 1979-10-05 Electrohydraulic proportional valve
PCT/US1980/001302 WO1981001035A1 (en) 1979-10-05 1980-10-03 Electrohydraulic proportional valve

Publications (1)

Publication Number Publication Date
DE3049944A1 true DE3049944A1 (en) 1982-03-18

Family

ID=22170140

Family Applications (1)

Application Number Title Priority Date Filing Date
DE803049944A Withdrawn DE3049944A1 (en) 1979-10-05 1980-10-03 Electrohydraulic proportional valve

Country Status (6)

Country Link
US (1) US4290447A (https=)
JP (1) JPS56501294A (https=)
DE (1) DE3049944A1 (https=)
GB (1) GB2076564B (https=)
SE (1) SE440538B (https=)
WO (1) WO1981001035A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020201171A1 (de) 2020-01-31 2021-08-05 Inline Hydraulik Gmbh Verstelleinrichtung für eine Hydromaschine, Hydromaschine

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569273A (en) * 1983-07-18 1986-02-11 Dynex/Rivett Inc. Three-way proportional valve
US4585024A (en) * 1984-08-28 1986-04-29 Commercial Shearing, Inc. Air shift conversion apparatus for manual valves
JPS61244901A (ja) * 1985-04-22 1986-10-31 Tokyo Keiki Co Ltd リモ−ト操作形ピストン装置
US4716933A (en) * 1986-10-16 1988-01-05 J. I. Case Company Valve unit
US4958553A (en) * 1988-04-22 1990-09-25 Diesel Kiki Co., Ltd. Hydraulic controller
US5400816A (en) * 1990-10-05 1995-03-28 Dana Corporation Pilot actuated override mechanism for holding valve
DE19512007A1 (de) * 1995-03-31 1996-10-02 Rexroth Mannesmann Gmbh Hydraulisch betätigbares Wegeventil
DE19646445A1 (de) * 1996-11-11 1998-05-14 Rexroth Mannesmann Gmbh Ventilanordnung
JP3778634B2 (ja) * 1996-11-22 2006-05-24 Ｓｍｃ株式会社 パイロットチェック弁付スピードコントローラ
US5992454A (en) * 1998-07-21 1999-11-30 Eaton Corporation Lower and float capability in four position control valve
US6092454A (en) * 1998-07-23 2000-07-25 Caterpillar Inc. Controlled float circuit for an actuator
DE19842029B4 (de) * 1998-09-14 2005-02-17 Sauer-Sundstrand Gmbh & Co. Verstellung von hydrostatischen Axialkolbenmaschinen mittels Schrittmotor
US6637461B2 (en) * 2002-03-08 2003-10-28 Husco International, Inc. Electrically operated hydraulic actuator with force feedback position sensing
US7422033B2 (en) * 2004-12-16 2008-09-09 Husco International, Inc. Position feedback pilot valve actuator for a spool control valve
EP2018483A1 (en) * 2006-05-15 2009-01-28 Nem S.P.A. Hydraulic directional control valve with pressure compensating means
CN103161791B (zh) * 2013-03-14 2014-12-17 浙江工业大学 双向比例调压机构
CN103161790B (zh) * 2013-03-14 2015-04-22 浙江工业大学 双向差动比例调压机构
CN103161788B (zh) * 2013-03-14 2014-12-03 浙江工业大学 旋转式双向比例调压机构
CN103161786B (zh) * 2013-03-14 2015-01-28 浙江工业大学 旋转式差动比例调压机构
CN103161787B (zh) * 2013-03-14 2014-12-17 浙江工业大学 双余度比例调压机构
CN103161792B (zh) * 2013-03-14 2015-06-03 浙江工业大学 可设定起始压力调压机构
US9915368B2 (en) * 2015-11-06 2018-03-13 Caterpillar Inc. Electrohydraulic valve having dual-action right-angle pilot actuator
US9803661B2 (en) * 2015-11-06 2017-10-31 Caterpillar Inc. Valve having right-angle proportional and directional pilot actuators
CN106762900B (zh) * 2016-11-25 2018-10-12 合肥协力液压科技有限公司 一种液压阀
IT201600126329A1 (it) * 2016-12-14 2018-06-14 Elt Fluid S R L Attuatore elettroidraulico
EP3660332B1 (en) * 2018-11-27 2023-05-17 Hamilton Sundstrand Corporation Servo valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381587A (en) * 1965-09-10 1968-05-07 Deere & Co Hydraulic control system
US3653409A (en) * 1971-01-04 1972-04-04 Rex Chainbelt Inc Power assist servo control for a valve
US4011891A (en) * 1975-08-06 1977-03-15 Applied Power Inc. Proportional flow control valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020201171A1 (de) 2020-01-31 2021-08-05 Inline Hydraulik Gmbh Verstelleinrichtung für eine Hydromaschine, Hydromaschine

Also Published As

Publication number Publication date
WO1981001035A1 (en) 1981-04-16
JPS56501294A (https=) 1981-09-10
GB2076564B (en) 1983-08-17
SE8103530L (sv) 1981-06-04
GB2076564A (en) 1981-12-02
US4290447A (en) 1981-09-22
SE440538B (sv) 1985-08-05

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Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: GOERTZ, H., DIPL.-ING. FUCHS, J., DR.-ING. DIPL.-I

8141 Disposal/no request for examination