Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1980-06-24
1983-03-22
Brust, Joseph Paul
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
180132, 180148, B62D 506, B62D 508
Patent
active
043772170
ABSTRACT:
A power steering system for vehicles includes a four-way valve slidable in response to applied steering torque for selectively connecting a pair of hydraulic oil chambers of a servo cylinder to a hydraulic pressure source and an oil reservoir. A pair of hydraulic rection chambers are disposed one on each side of the four-way valve and each contain a pair of plungers and a spring interposed therebetween. The plungers are held by and between a pair of diametrical pins supported on the valve and spaced axially from each other. When the reaction chambers are pressurized by an increased speed of the vehicle or a change in resistance from the road surface, the plungers are urged against the pins on the valve to prevent the latter from being slid axially, thereby allowing the driver of the vehicle to feel a suitable resistance to turning of the steering wheel without being assisted by auxiliary power from the servo cylinder.
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patent: 3994361 (1976-11-01), Nishikawa et al.
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patent: 4279323 (1981-07-01), Ando et al.
patent: 4293051 (1981-10-01), Nishikawa
patent: 4299302 (1981-11-01), Nishikawa et al.
Automotive Engineering, Jul. 1979, vol. 87, No. 7, pp. 70-72.
Aoki Takashi
Nishikawa Masao
Sato Yoichi
Brust Joseph Paul
Burt Pamel S.
Honda Giken Kogyo Kabushiki Kaisha
Shortley John L.
Weiner Irving M.
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