Motors: expansible chamber type – Plural relatively movable or rigidly interconnected working... – With means for proportioning motive fluid supply to plural...
Patent
1977-12-27
1981-04-21
Hershkovitz, Abraham
Motors: expansible chamber type
Plural relatively movable or rigidly interconnected working...
With means for proportioning motive fluid supply to plural...
91526, 91375A, 13762568, F15B 1100
Patent
active
042625807
ABSTRACT:
A vehicular power steering system including a primary hydraulic circuit for operating the steered wheels and a secondary hydraulic circuit for operating auxiliary equipment such as an implement or the like which may be attached to the vehicle. The system includes a fluid controller for controlling the flow of pressurized fluid from a pump to the primary or steering circuit and the implement or secondary circuit. The fluid controller includes a valve mechanism which is constructed and arranged to provide the primary hydraulic circuit with pressurized fluid in the amount necessary to produce the desired steering maneuver while furnishing the secondary hydraulic circuit with the excess pressurized fluid supplied by the power pump. Thus the requirements of the primary hydraulic circuit may be always satisfied and have priority over the requirements of the secondary circuit in all modes of operation.
REFERENCES:
patent: 2910971 (1959-11-01), MacDuff
patent: 3452543 (1969-07-01), Goff
patent: 3589129 (1971-06-01), Pollman
Goff Raymon L.
Rau Jim L.
Hershkovitz Abraham
TRW Inc.
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