Rack and pinion auxiliary power steering

Details Rack and pinion auxiliary power steering Rack and pinion auxiliary power steering

1985-06-14

1987-10-13

Love, John J.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

91370, 91375R, 91380, B62D 506

Patent

active

046992316

ABSTRACT:
A compact power steering device is provided wherein the power steering valving is actuated by axial movement of a pinion having helical teeth engaging a rack in a steering housing. The valving utilizes head and seat valves with valve heads and coacting valve seats which are actuated on axes parallel to the pinion axis within the housing and requiring no more than the overall distance occupied by axial movement of the pinion as effected by rotation of a steering wheel during steering. Opposed springs effect a centered position for the pinion in neutral position of the valving for straight ahead steering. Thus, a centering spring is dominant and limited in movement to fix the valving as biased by other springs to a precise neutral position.

REFERENCES:
patent: 2589341 (1952-03-01), Chisholm, Jr. et al.
patent: 4294325 (1981-10-01), Nomura
patent: 4367672 (1983-01-01), Elser

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