Vehicle four wheel steering system

Details Vehicle four wheel steering system Vehicle four wheel steering system

1986-08-11

1988-03-22

Love, John J.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

91378, 180148, 280 91, B62D 506

Patent

active

047322314

ABSTRACT:
A vehicle four wheel steering system including a rear wheel steering mechanism with a power assist device. The rear wheel steering mechanism includes a steering rod extending transversely of the vehicle and having the opposite ends connected with tie rods which are in turn connected with knuckle arms of the rear wheels. The steering rod is provided with a power cylinder in which a piston is slidably disposed. The piston is provided on the steering rod and defines hydraulic chambers in the cylinder. A control valve is provided to control hydraulic oil supply to the power cylinder. The control valve has a casing which is connected with the steering rod through an interconnecting section and hydraulic oil passages are formed in the interconnecting section for passing hydraulic oil to and from the power cylinder.

REFERENCES:
patent: 4146244 (1979-03-01), Presley
patent: 4182221 (1980-01-01), Presley
patent: 4467885 (1984-08-01), Furukawa et al.
patent: 4621823 (1986-11-01), Sano

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