Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1987-01-16
1989-02-21
Mitchell, David M.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
91371, 91375A, 91434, 180142, B62D 506
Patent
active
048057142
ABSTRACT:
A power steering system which includes a fluid source that supplies pressure fluid of a constant flow rate, a fluid motor for supplementing manual steering torque, a servo-valve for distributing fluid to the fluid motor, and a reaction device for applying hydraulic reaction or feeling to a steering wheel. A magnetic control valve is connected to the reaction device to control fluid pressure applied thereto in accordance with a vehicle operating condition, such a vehicle speed. A flow dividing valve serves to divide the pressure fluid of a constant flow rate in a predetermined ratio into first and second flows which are respectively directed to the servo-valve and reaction device. A bypass conduit provided with a bypass orifice is connected between the fluid source and the servo-valve in parallel relation with the flow dividing valve.
REFERENCES:
patent: 3855904 (1974-12-01), Jablonsky
patent: 3922953 (1975-12-01), Strauff
patent: 4154317 (1979-05-01), Nishikawa et al.
patent: 4293051 (1981-10-01), Nishikawa
patent: 4593783 (1986-06-01), Honaga et al.
patent: 4605085 (1986-08-01), Honaga et al.
patent: 4644846 (1987-02-01), Kozuka
patent: 4676334 (1987-06-01), Nakamura et al.
Honaga Susumu
Kawakami Hiroshi
Nakamura Keiichi
Suzuki Mikio
Mitchell David M.
Toyoda Koki Kabushiki Kaisha
Watts Charles R.
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