FR2397969A1 - Dispositif perfectionne de commande hydraulique notamment pour vehicules a chenilles - Google Patents

Dispositif perfectionne de commande hydraulique notamment pour vehicules a chenilles

Info

Publication number
FR2397969A1
FR2397969A1 FR7821117A FR7821117A FR2397969A1 FR 2397969 A1 FR2397969 A1 FR 2397969A1 FR 7821117 A FR7821117 A FR 7821117A FR 7821117 A FR7821117 A FR 7821117A FR 2397969 A1 FR2397969 A1 FR 2397969A1
Authority
FR
France
Prior art keywords
control device
tracked vehicles
hydraulic control
valves
track
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
FR7821117A
Other languages
English (en)
Other versions
FR2397969B1 (fr
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.)
Massey Ferguson Services NV
Original Assignee
Massey Ferguson Services NV
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 Massey Ferguson Services NV filed Critical Massey Ferguson Services NV
Publication of FR2397969A1 publication Critical patent/FR2397969A1/fr
Application granted granted Critical
Publication of FR2397969B1 publication Critical patent/FR2397969B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
    • B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
    • B62D11/14—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
    • B62D11/18—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
    • B62D11/183—Control systems therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

L'invention concerne un dispositif perfectionné de commande hydraulique, notamment pour véhicules à chenilles. Les accouplements de direction 24, 25 sont commandés respectivement par deux clapets de commande 20, 21, actionnés par une pompe hydraulique principale 8. Chaque clapet peut passer d'un état neutre, pour lequel l'accouplement correspondant est engagé et la chenille associée est entraînée, à un etat d'alimentation pour lequel la chenille est débrayée. Une pompe hydraulique additionnelle 15 est reliée aux clapets 20, 21 de manière a maintenir le remplissage des canalisations hydrauliques 22, 23 lorsque l'un ou l'autre des clapets 20, 21 est à l'état neutre. Applications notamment dans les bulldozers et chargeurs à chenilles.
FR7821117A 1977-07-20 1978-07-17 Dispositif perfectionne de commande hydraulique notamment pour vehicules a chenilles Granted FR2397969A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30400/77A GB1600244A (en) 1977-07-20 1977-07-20 Hydraulic control devices

Publications (2)

Publication Number Publication Date
FR2397969A1 true FR2397969A1 (fr) 1979-02-16
FR2397969B1 FR2397969B1 (fr) 1981-01-30

Family

ID=10307100

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821117A Granted FR2397969A1 (fr) 1977-07-20 1978-07-17 Dispositif perfectionne de commande hydraulique notamment pour vehicules a chenilles

Country Status (5)

Country Link
BR (1) BR7804720A (fr)
DE (1) DE2831784A1 (fr)
FR (1) FR2397969A1 (fr)
GB (1) GB1600244A (fr)
IT (1) IT1193878B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5044580B2 (ja) * 2009-01-29 2012-10-10 株式会社小松製作所 作業車両の油圧システム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1264402A (fr) * 1959-08-05 1961-06-19 Caterpillar Tractor Co Dispositif de direction pour tracteurs du type à chaîne de roulement
FR1500707A (fr) * 1965-11-20 1967-11-03 Perfectionnements aux transmissions
DE1755308A1 (de) * 1968-04-25 1971-12-02 Stolberger Maschinen Und Appba Hydrostatische Lenkanlage,insbesondere fuer Fahrzeuge mit Knicklenkung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1264402A (fr) * 1959-08-05 1961-06-19 Caterpillar Tractor Co Dispositif de direction pour tracteurs du type à chaîne de roulement
FR1500707A (fr) * 1965-11-20 1967-11-03 Perfectionnements aux transmissions
DE1755308A1 (de) * 1968-04-25 1971-12-02 Stolberger Maschinen Und Appba Hydrostatische Lenkanlage,insbesondere fuer Fahrzeuge mit Knicklenkung

Also Published As

Publication number Publication date
BR7804720A (pt) 1979-03-06
IT7825735A0 (it) 1978-07-14
DE2831784C2 (fr) 1989-04-27
IT1193878B (it) 1988-08-31
FR2397969B1 (fr) 1981-01-30
DE2831784A1 (de) 1979-02-22
GB1600244A (en) 1981-10-14

Similar Documents

Publication Publication Date Title
IT8320448A0 (it) Su trattore cingolato. apripista a comando idraulico, particolarmente per l'applicazione
FR2433258A1 (fr) Generatrice et ses dispositifs d'entrainement incorpores dans un groupe modulaire
DK0388641T3 (da) Hydraulikanlæg til entreprenørmaskiner især hjullæssere, traktorer og lignende
GB1536246A (en) Apparatus including pressure relief valves
GB1492155A (en) Hydraulic system including a plurality of hydraulic motor
FR2372064A1 (fr)
FR2377924A1 (fr) Circuit hydraulique de commande
FR2397969A1 (fr) Dispositif perfectionne de commande hydraulique notamment pour vehicules a chenilles
GB1490583A (en) Hand controls for fluid control systems
FR2362290A1 (fr) Soupape de retenue de charge et de derivation
ES481020A1 (es) Sistema de propulsion auxiliar para una o varias ruedas de rodadura normalmente no propulsadas en vehiculos.
FR2375511A1 (fr) Circuit de transmission de fluide
ES8403390A1 (es) Un aparato de servodireccion.
FR2375474A2 (fr) Dispositif de commande de la circulation d'un fluide de la direction assistee d'un vehicule
FR2418357A1 (fr) Systeme de commande des circuits de lubrification et de charge d'une transmission
GB1445910A (en) Hydrostatic drive system
FR2364302A1 (fr) Vehicule de travail du type bulldozer a pelle arriere muni d'un circuit hydraulique a fluide de pression
FR2418360A1 (fr) Dispositif de commande assistee d'un emetteur hydraulique
FR2399562A1 (fr) Dispositif de commande d'un outillage hydraulique, notamment sur un vehicule agricole
ES352597A1 (es) Valvula axil termostatica.
FR2433663A1 (fr) Dispositif de commande de fluide a mecanisme de commande de debit variable individuellement pour chaque section de commande
FR2386710A1 (fr) Perfectionnements aux installations de commande pour moteurs hydrauliques
DE3469287D1 (en) Control circuit, in particular for a tracked vehicle
JPS57201434A (en) Oil-pressure circuit for hydraulic shovel
GB994855A (en) Hydraulic control systems for self-propelled excavators

Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
TP Transmission of property
ST Notification of lapse