Hydraulic auxiliary power steering with energy supply arrangemen

Details Hydraulic auxiliary power steering with energy supply arrangemen Hydraulic auxiliary power steering with energy supply arrangemen

1978-09-06

1980-05-20

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Condition responsive control of pump or motor displacement

60494, 91446, 91468, 60459, F16H 3946

Patent

active

042032920

ABSTRACT:
A pressurized fluid supply for an auxiliary power steering system includes a regulator valve assembly controlling the output pressure of a fluid supply pump under the opposing influences of the pump discharge pressure and a signal feedback pressure from a fluid operated servomotor. An adjustable bias applied to the regulator valve assembly establishes a low idling discharge pressure for the pump while no steering action is being performed by the servomotor to which the pump is connected by a control valve biased to a flow blocking position.

REFERENCES:
patent: 3411416 (1968-11-01), Herd et al.
patent: 3455210 (1969-07-01), Allen
patent: 3999386 (1976-12-01), Crull et al.

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