JPS56501057A - - Google Patents

Info

Publication number
JPS56501057A
JPS56501057A JP50179979A JP50179979A JPS56501057A JP S56501057 A JPS56501057 A JP S56501057A JP 50179979 A JP50179979 A JP 50179979A JP 50179979 A JP50179979 A JP 50179979A JP S56501057 A JPS56501057 A JP S56501057A
Authority
JP
Japan
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.)
Pending
Application number
JP50179979A
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 filed Critical
Publication of JPS56501057A publication Critical patent/JPS56501057A/ja
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/80—Component parts
    • E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
    • E02F3/844—Drives or control devices therefor, e.g. hydraulic drive systems for positioning the blade, e.g. hydraulically
    • 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
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
JP50179979A 1979-08-30 1979-08-30 Pending JPS56501057A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/093,072 US4286432A (en) 1979-08-30 1979-08-30 Lock valve with variable length piston and hydraulic system for a work implement using the same

Publications (1)

Publication Number Publication Date
JPS56501057A true JPS56501057A (ja) 1981-07-30

Family

ID=22236819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50179979A Pending JPS56501057A (ja) 1979-08-30 1979-08-30

Country Status (5)

Country Link
US (1) US4286432A (ja)
EP (1) EP0025107A1 (ja)
JP (1) JPS56501057A (ja)
CA (1) CA1133359A (ja)
WO (1) WO1981000600A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009074692A (ja) * 2007-09-20 2009-04-09 Volvo Construction Equipment Ab フローティング機能付きダブルチェック弁

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505339A (en) * 1980-02-27 1985-03-19 Dresser Industries, Inc. Hydraulic control for a dozer blade
US4475641A (en) * 1981-10-21 1984-10-09 Allis-Chalmers Corporation Double acting hydraulic accumulator for power shift transmission
US4445666A (en) * 1981-11-16 1984-05-01 Hydra-Jack, Inc. Hydraulic jack device
US4461314A (en) * 1982-09-13 1984-07-24 Deere & Company Electrohydraulic valve
US4757840A (en) * 1987-07-27 1988-07-19 Deere & Company Multipiece spool valve
US5116188A (en) * 1987-09-16 1992-05-26 Kabushiki Kaisha Kobe Seiko Sho Vibration suppressing device for wheeled construction equipment
DE3900949A1 (de) * 1989-01-14 1990-07-19 Bw Hydraulik Gmbh Elektrohydraulische steuerung zum steuern eines hydraulischen antriebes
JPH0454352Y2 (ja) * 1989-08-29 1992-12-21
US5018935A (en) * 1989-11-09 1991-05-28 Deere & Company Automatic pressure relief system for a hydraulic motor
CA2047305A1 (en) * 1990-07-30 1992-01-31 Douglas M. Gage Hydraulic system for a work vehicle
US5575150A (en) * 1995-04-12 1996-11-19 Northrop Grumman Corporation Stiffness enhanced electrohydrostatic actuator
DE69614776T2 (de) * 1995-06-23 2002-04-18 New Holland Italia Spa Steuerventil für ein hydraulisches Lenksystem
FR2755481B1 (fr) * 1996-11-07 1998-12-24 Lohr Ind Dispositif de maintien en position et sous charge d'un verin hydraulique
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
DE19734658A1 (de) * 1997-08-11 1999-02-18 Mannesmann Rexroth Ag Hydraulische Steueranordnung für eine mobile Arbeitsmaschine, insbesondere für einen Radlader
US6178871B1 (en) 1998-06-25 2001-01-30 Tom Sutherland Actuator and method of operating same
US20030121258A1 (en) * 2001-12-28 2003-07-03 Kazunori Yoshino Hydraulic control system for reducing motor cavitation
US6836616B2 (en) 2002-02-14 2004-12-28 Valco Cincinnati, Inc. Molten material application machine
US6746326B2 (en) * 2002-04-29 2004-06-08 Dronningborg Industries A/S Hydraulic clutch
DE10224827A1 (de) * 2002-06-05 2004-01-08 Sauer-Danfoss (Nordborg) A/S Hydraulische Ventilanordnung
DE10227966A1 (de) * 2002-06-22 2004-01-08 Deere & Company, Moline Hydraulische Steueranordnung für eine mobile Arbeitsmaschine
ITGE20020064A1 (it) * 2002-07-16 2004-01-16 Ultraflex Spa Pompa oleodinamica per sistemi di guida per imbarcazioni
US6868772B2 (en) * 2002-10-08 2005-03-22 Imi Norgren, Inc. Fluid control valve
US7284471B2 (en) * 2004-12-02 2007-10-23 Sarcos Investments Lc Pressure control valve having intrinsic mechanical feedback system
KR100849500B1 (ko) * 2006-11-29 2008-07-31 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 플로팅 기능이 구비된 더블 체크밸브
US8061261B2 (en) * 2007-02-28 2011-11-22 Raytheon Company Antagonistic fluid control system for active and passive actuator operation
WO2008106618A1 (en) * 2007-02-28 2008-09-04 Raytheon Sarcos, Llc Fluid control system having selective recruitable actuators
DE102007032415B3 (de) * 2007-07-12 2009-04-02 Sauer-Danfoss Aps Hydraulische Ventilanordnung
US8038094B2 (en) * 2008-03-31 2011-10-18 Honda Motor Co., Ltd. Hydraulic system for aircraft
WO2011145759A1 (ko) * 2010-05-18 2011-11-24 볼보 컨스트럭션 이큅먼트 에이비 건설기계용 더블 체크밸브
US20120152629A1 (en) * 2010-12-15 2012-06-21 Mather Daniel T Hydraulic system having load lock valve
CA2998893A1 (en) * 2017-03-23 2018-09-23 The Raymond Corporation Systems and methods for mast stabilization on a material handling vehicle
EP3505775A1 (en) * 2017-12-29 2019-07-03 Microtecnica S.r.l. Hydraulic no-back device

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506008A (en) * 1947-01-17 1950-05-02 Bruno F Arps Hydraulic control valve
US2765622A (en) * 1950-04-27 1956-10-09 Ernest C Chasser Control mechanism for pump and motor fluid system
US3141388A (en) * 1961-03-27 1964-07-21 Cadillac Gage Co Linear actuator
US3264947A (en) * 1964-08-26 1966-08-09 Cadillac Gage Co Digital servo actuators
DE1952034A1 (de) * 1969-10-15 1971-04-22 Linde Ag Steuereinrichtung fuer eine hydraulische Anlage und Ventil hierzu
US4033236A (en) * 1971-12-27 1977-07-05 Caterpillar Tractor Co. All hydraulic motor grader circuitry
US3857404A (en) * 1973-04-30 1974-12-31 Caterpillar Tractor Co Hydraulically operated lock valve assembly
US3872670A (en) * 1973-05-02 1975-03-25 Caterpillar Tractor Co Selectively actuatable shock absorbing system for an implement control circuit
GB1394929A (en) * 1973-06-18 1975-05-21 Capilano Eng Co Ltd Hydraulic direction-control valve
US4037671A (en) * 1973-07-03 1977-07-26 Atlas Copco Aktiebolag Drill boom with hydraulic parallel motion means
US3908515A (en) * 1973-09-10 1975-09-30 Caterpillar Tractor Co Hydraulic circuit with selectively actuatable float control
US3933167A (en) * 1974-02-20 1976-01-20 Tomco, Inc. Pilot operated check valve
US3974742A (en) * 1974-10-31 1976-08-17 Caterpillar Tractor Co. Lock valve assembly
IT1073144B (it) * 1976-10-28 1985-04-13 Welko Ind Spa Apparecchiatura idraulica per l'alimentazione di liquido a due differenti pressioni ad un dispositivo idraulico
US4081053A (en) * 1976-11-19 1978-03-28 Terry McDermid Lock valve for double acting cylinder
US4145886A (en) * 1977-06-13 1979-03-27 Johnson & Bassett, Inc. Tank supply fail safe
US4192338A (en) * 1978-05-15 1980-03-11 Gerulis Benedict R Hydraulic lock-out device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009074692A (ja) * 2007-09-20 2009-04-09 Volvo Construction Equipment Ab フローティング機能付きダブルチェック弁

Also Published As

Publication number Publication date
WO1981000600A1 (en) 1981-03-05
US4286432A (en) 1981-09-01
EP0025107A1 (en) 1981-03-18
CA1133359A (en) 1982-10-12

Similar Documents

Publication Publication Date Title
FR2446424B1 (ja)
JPS56501057A (ja)
BR8002583A (ja)
BR8006808A (ja)
FR2448584B1 (ja)
FR2446119B1 (ja)
FR2447582B3 (ja)
DE2913379C3 (ja)
DE3049331C2 (ja)
FR2446392B3 (ja)
DE3016549C2 (ja)
FR2447512B1 (ja)
FR2446214B1 (ja)
FR2449148B1 (ja)
FR2448501B3 (ja)
FR2446631B1 (ja)
DE7931559U1 (ja)
FR2447026B1 (ja)
FR2448051B1 (ja)
FR2447261B1 (ja)
FR2447058B1 (ja)
FR2449034B2 (ja)
DE2904447C2 (ja)
AT364253B (ja)
FR2447206B1 (ja)