FR2382602A1 - Dispositif de retenue du fluide a declenchement automatique - Google Patents

Dispositif de retenue du fluide a declenchement automatique

Info

Publication number
FR2382602A1
FR2382602A1 FR7805969A FR7805969A FR2382602A1 FR 2382602 A1 FR2382602 A1 FR 2382602A1 FR 7805969 A FR7805969 A FR 7805969A FR 7805969 A FR7805969 A FR 7805969A FR 2382602 A1 FR2382602 A1 FR 2382602A1
Authority
FR
France
Prior art keywords
retaining device
cylinder
automatically released
valve
fluid retaining
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Withdrawn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
FR7805969A
Other languages
English (en)
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.)
Case LLC
Original Assignee
JI Case Co
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 JI Case Co filed Critical JI Case Co
Publication of FR2382602A1 publication Critical patent/FR2382602A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/1022—Fluid cut-off devices automatically actuated
    • 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • 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
    • Y10T137/2514—Self-proportioning flow systems
    • Y10T137/2521—Flow comparison or differential response
    • Y10T137/2524—Flow dividers [e.g., reversely acting controls]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

L'invention concerne un circuit fluidique du type comportant une pompe et deux moteurs, tels que des vérins. Deux clapets de protection 12, 13 sont montés dans le circuit, chaque clapet comportant un orifice 28 raccordé à la pompe P par l'intermédiaire d'un distributeur de commande 11 et deux orifices 31, 32 raccordés respectivement à l'extrémité côté tige d'un vérin et à l'extrémité côté fond de cylindre de l'autre vérin. L'obturateur 33 de chaque clapet est normalement dans une position neutre et est déplacé dans une position de fermeture appropriée sous l'action du déséquilibre des pressions qui lui sont appliquées, lorsqu'une fuite se produit dans une canalisation. L'invention est applicable, notamment, aux circuits de direction de véhicules tels que des tracteurs.
FR7805969A 1977-03-04 1978-03-02 Dispositif de retenue du fluide a declenchement automatique Withdrawn FR2382602A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/774,235 US4147093A (en) 1977-03-04 1977-03-04 Self-actuating fluid holding system

Publications (1)

Publication Number Publication Date
FR2382602A1 true FR2382602A1 (fr) 1978-09-29

Family

ID=25100634

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7805969A Withdrawn FR2382602A1 (fr) 1977-03-04 1978-03-02 Dispositif de retenue du fluide a declenchement automatique

Country Status (7)

Country Link
US (1) US4147093A (fr)
CA (1) CA1059877A (fr)
DE (1) DE2809740A1 (fr)
ES (1) ES467553A1 (fr)
FR (1) FR2382602A1 (fr)
GB (1) GB1582934A (fr)
SE (1) SE7802436L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007045201A1 (fr) * 2005-10-15 2007-04-26 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Servosoupape destinee a l'actionnement assiste d'une pedale

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021732B2 (fr) * 1979-06-22 1988-04-13 Vickers Limited Dispositif de commande hydraulique pour navires
US4397222A (en) * 1979-08-16 1983-08-09 Glaze Stanley G Fluid powered actuator system
US4610193A (en) * 1983-10-26 1986-09-09 Deere & Company Load control system
US4522109A (en) * 1983-11-21 1985-06-11 J. I. Case Company Leak-detecting hydraulic system
DE4438771A1 (de) * 1994-10-24 1996-04-25 Andreas Ruhle Vorrichtung zur automatischen Abschaltung eines hydraulischen Verbrauchers beim Auftreten einer Leckage mittels zweier Volumenstrom-Meßmotoren und eines Ventils, dessen Ventilstellung in Abhängigkeit der Drehzahlen der beiden Volumenstrom-Meßmotoren bestimmt wird
KR101339229B1 (ko) * 2011-11-29 2013-12-09 현대자동차 주식회사 전동식 오일펌프 제어 시스템
RU2571240C1 (ru) * 2014-05-26 2015-12-20 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный архитектурно-строительный университет" (ВолгГАСУ) Система защиты гидропривода

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956577A (en) * 1956-11-16 1960-10-18 New York Air Brake Co Valve
US3094042A (en) * 1963-06-18 Fluid systems
US3304633A (en) * 1964-05-08 1967-02-21 Caterpillar Tractor Co Hydraulic circuit
US3437103A (en) * 1965-04-08 1969-04-08 Masao Yoshino Flow control valve
US3847059A (en) * 1973-09-04 1974-11-12 Caterpillar Tractor Co Dual control valve assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152021A (en) * 1937-02-26 1939-03-28 Baumer Harry Leland Safety device for steering motor vehicles
US3033219A (en) * 1960-05-19 1962-05-08 Textron Inc Flow proportioner
US3960286A (en) * 1974-12-19 1976-06-01 Allis-Chalmers Corporation Automatic overload control for a counterbalanced lift truck
US3983893A (en) * 1975-06-20 1976-10-05 Eaton Corporation Flow divider valve assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094042A (en) * 1963-06-18 Fluid systems
US2956577A (en) * 1956-11-16 1960-10-18 New York Air Brake Co Valve
US3304633A (en) * 1964-05-08 1967-02-21 Caterpillar Tractor Co Hydraulic circuit
US3437103A (en) * 1965-04-08 1969-04-08 Masao Yoshino Flow control valve
US3847059A (en) * 1973-09-04 1974-11-12 Caterpillar Tractor Co Dual control valve assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007045201A1 (fr) * 2005-10-15 2007-04-26 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Servosoupape destinee a l'actionnement assiste d'une pedale
CN101287915B (zh) * 2005-10-15 2011-11-16 舍弗勒技术两合公司 用于助力踏板操作的伺服阀

Also Published As

Publication number Publication date
DE2809740A1 (de) 1978-09-07
CA1059877A (fr) 1979-08-07
ES467553A1 (es) 1979-09-01
GB1582934A (en) 1981-01-14
SE7802436L (sv) 1978-09-05
US4147093A (en) 1979-04-03

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Legal Events

Date Code Title Description
ST Notification of lapse