Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1984-11-21
1986-04-22
Pekar, John A.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
91375A, B62D 508
Patent
active
045836108
ABSTRACT:
A power steering apparatus comprises an input member rotatably mounted in a valve housing, an output member rotatably mounted in a gear housing integral with the valve housing and arranged coaxially with the input member, a valve rotor integral with the input member, a valve sleeve rotatably mounted in the valve housing and arranged in surrounding relationship with the valve rotor, the valve sleeve being connected integrally with the output member to cooperate with the valve rotor for selectively directing fluid under pressure to opposite ends of a hydraulic power cylinder in response to relative rotation between the input and output members, a cylindrical member fixed to the outer end of the output member, an axial rod rotatably disposed in an internal axial bore in the output member and having an inner end fixed to the input member and an outer end rotatable in the interior of the cylindrical member, a piston axially slidably disposed in the cylindrical member and rotatable integrally with the cylindrical member, a cam mechanism arranged between the outer end of the axial rod and the piston for permitting relative rotation between the input and output members, and a pressure mechanism arranged to apply fluid under pressure responsive to the vehicle speed to the piston for increasing the resistance to relative rotation of the input member and the output member in accordance with the vehicle speed.
REFERENCES:
patent: 3465842 (1969-09-01), Hraska
patent: 3930554 (1976-01-01), Ward
patent: 4034825 (1977-07-01), Adams
patent: 4373598 (1983-02-01), Elser
patent: 4481866 (1984-11-01), Matouka
Dukes Mark C.
Pekar John A.
Toyota Jidosha & Kabushiki Kaisha
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