FR2403477A1 - Nouvel ensemble de verins hydrauliques synchronises - Google Patents

Nouvel ensemble de verins hydrauliques synchronises

Info

Publication number
FR2403477A1
FR2403477A1 FR7825121A FR7825121A FR2403477A1 FR 2403477 A1 FR2403477 A1 FR 2403477A1 FR 7825121 A FR7825121 A FR 7825121A FR 7825121 A FR7825121 A FR 7825121A FR 2403477 A1 FR2403477 A1 FR 2403477A1
Authority
FR
France
Prior art keywords
hydraulic cylinders
new set
synchronized hydraulic
jack
synchronized
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.)
Granted
Application number
FR7825121A
Other languages
English (en)
Other versions
FR2403477B3 (fr
Inventor
Gerald G Ward
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.)
Navistar Inc
Original Assignee
International Harverster Corp
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 International Harverster Corp filed Critical International Harverster Corp
Publication of FR2403477A1 publication Critical patent/FR2403477A1/fr
Application granted granted Critical
Publication of FR2403477B3 publication Critical patent/FR2403477B3/fr
Granted 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Combines (AREA)

Abstract

Un vérin 48 est asservi à un vérin principal 10 par mise en communication de deux de leurs chambres à l'aide d'une canalisation 46. Pour resynchroniser leurs pistons 18, 52 aux fins de course, le cylindre 12 du vérin principal 10 comporte deux paires d'orifices 60, 62 et 80, 82 qui sont reliés en permanence par des moyens extérieurs 72, 84 et qui encadrent la garniture d'étanchéité 64 du piston 18 aux fins de course Application : commande du rabatteur des moissonneuses-batteuses.
FR7825121A 1977-09-19 1978-08-31 Nouvel ensemble de verins hydrauliques synchronises Granted FR2403477A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/834,628 US4164122A (en) 1977-09-19 1977-09-19 Cylinder construction affording automatic re-phasing of master and slave cylinders

Publications (2)

Publication Number Publication Date
FR2403477A1 true FR2403477A1 (fr) 1979-04-13
FR2403477B3 FR2403477B3 (fr) 1981-06-12

Family

ID=25267392

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7825121A Granted FR2403477A1 (fr) 1977-09-19 1978-08-31 Nouvel ensemble de verins hydrauliques synchronises

Country Status (4)

Country Link
US (1) US4164122A (fr)
CA (1) CA1080085A (fr)
FR (1) FR2403477A1 (fr)
GB (1) GB2004594B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463563A (en) * 1978-06-19 1984-08-07 The Cessna Aircraft Company Rephasing cylinder construction
US4622884A (en) * 1981-04-10 1986-11-18 Buchl Andrew F Floating piston depth control apparatus
US5320047A (en) * 1992-03-06 1994-06-14 Monarch Hydraulics, Inc. Desk having self-releveling height adjustment and hydraulic circuit therefor
US5322025A (en) * 1992-05-29 1994-06-21 Steelcase Inc. Adjustable dual worksurface support
US6000315A (en) * 1998-05-04 1999-12-14 Deere & Company Lift control for implement frame
US7134280B2 (en) * 2004-02-09 2006-11-14 J.R. Automation Technologies, Llc Hydraulic system for synchronized extension of multiple cylinders
US7322190B2 (en) * 2004-02-09 2008-01-29 Jr Automation Technologies Llc Hydraulic system for synchronized extension of multiple cylinders
US7047738B2 (en) * 2004-02-09 2006-05-23 Jr Automation Technologies, Llc Hydraulic system for synchronized extension of multiple cylinders
US7537079B2 (en) * 2005-03-23 2009-05-26 Clark Equipment Company Passively rephasing piston
US7506719B2 (en) * 2005-03-23 2009-03-24 Clark Equipment Company Self-synchronizing hydraulic system
US7926410B2 (en) * 2007-05-01 2011-04-19 J.R. Automation Technologies, L.L.C. Hydraulic circuit for synchronized horizontal extension of cylinders
US8555635B2 (en) * 2009-01-15 2013-10-15 Hallite Seals Americas, Inc. Hydraulic system for synchronizing a plurality of pistons and an associated method
US20140260956A1 (en) * 2013-03-14 2014-09-18 Woodward, Inc. Circumferential sealing of piston assembly in a piston actuator
US10251327B2 (en) 2016-11-22 2019-04-09 Cnh Industrial Canada, Ltd. Agricultural implement hydraulic rephasing unit and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB547650A (en) * 1941-11-15 1942-09-04 Charles Hyland Improvements in or relating to hydraulic remote control apparatus
US3190077A (en) * 1963-01-04 1965-06-22 Harold W Scholin Fluid motor
US3347043A (en) * 1965-11-22 1967-10-17 Cessna Aircraft Co Master cylinder construction affording automatic re-phasing of master and slave cylinders
US3648568A (en) * 1970-03-09 1972-03-14 Mosier Ind Inc Signal valve
DE2252735C3 (de) * 1972-10-27 1975-07-03 Qbukama Gmbh Hannover, 3005 Hemmingen-Westerfeld Einlaß- und AuslaBventilanordnung für einen Druckluftnagler

Also Published As

Publication number Publication date
GB2004594B (en) 1982-04-07
FR2403477B3 (fr) 1981-06-12
US4164122A (en) 1979-08-14
CA1080085A (fr) 1980-06-24
GB2004594A (en) 1979-04-04

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