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Machine translation
1. (WO1980000821) CONTROLLED DEMAND PRIORITY HYDRAULIC CIRCUIT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000821    International Application No.:    PCT/US1979/000438
Publication Date: 01.05.1980 International Filing Date: 20.06.1979
IPC:
B60G 17/005 (2006.01), B60G 9/02 (2006.01), F15B 11/16 (2006.01)
Applicants:
Inventors:
Priority Data:
950879 12.10.1978 US
Title (EN) CONTROLLED DEMAND PRIORITY HYDRAULIC CIRCUIT
(FR) CIRCUIT HYDRAULIQUE DE PRIORITE A DEMANDE CONTROLEE
Abstract: front page image
(EN)In a hydraulic circuit (10) fluid is passable from a priority valve (28) through control and lockout valves (30, 32) to, for example, a suspension system (27) of a work vehicle (20) or control cylinders of a steering assembly. The lockout valve (32) provides for controllably operating or locking out, for example, the operation of the suspension system (27) where desired. The control valve (30) controllably passes fluid to the suspension system (27), for example, based upon demand created by operation of the system (27). The control valve (30) also delivers a signal to the priority valve (28) for maintaining priority of fluid flow from the priority valve (28) to the suspension system (27). In the circuit (10), the signal is automatically, controllably blocked in response to locking out the operation of the suspension system (27) for preventing the priority valve (28) from maintaining priority fluid flow to the non-operative suspension system (27).
(FR)Dans un circuit hydraulique (10) du fluide peut circuler a partir d"une soupape de priorite (28) au travers de soupapes de controle et de blocage (30, 32) vers, par exemple, un systeme de suspension (27) d"un vehicule de travail (20) ou des cylindres de controle d"un ensemble de direction. La soupape de blocage (32) commande les fonctions de fonctionnement ou de blocage, par exemple, le fonctionnement du systeme de suspension (27) lorsque cela est desire. La soupape de controle (30) laisse circuler de maniere controlable du fluide au systeme de suspension (27), par exemple base sur la demande creee par le fonctionnement du systeme (27). La soupape de controle (30) emet aussi un signal a la soupape de priorite (28) vers le systeme de suspension (27). Dans le circuit (10), le signal est automatiquement, de maniere controlable, bloque en reponse au blocage du fonctionnement du systeme de suspension (27) afin d"eviter que la soupape de priorite (28) ne maintienne une circulation prioritaire de fluide vers le systeme de suspension qui n"est plus en fonctionnement (27).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)