Rotary hydraulic servo for steering gear

Details Rotary hydraulic servo for steering gear Rotary hydraulic servo for steering gear

1977-10-11

1979-02-06

Pekar, John A.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

91375A, 418129, 418174, B62D 510

Patent

active

041379896

ABSTRACT:
The rotary hydraulic servo is integral with a steering shaft and comprises a fluid control valve element rotated by manual steering input, and a multi-lobed rotor mounted in a stator. The stator has a set of reciprocally movable radial vanes cooperating with the arcuately spaced lobes of the rotor to form chambers for pressure fluid for operator selected hydraulic drive of the rotor. The rotor is drivingly connected to a pinion meshing with teeth of the rack for right and left turn power assist steering.

REFERENCES:
patent: 1944700 (1934-01-01), Tait
patent: 1947991 (1934-02-01), Jessup
patent: 3616727 (1971-11-01), Suzuki
patent: 3831697 (1974-08-01), Wahlmark

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