Power steering apparatus for vehicle

Details Power steering apparatus for vehicle Power steering apparatus for vehicle

B - Operations, Transporting

62

D

180/55

B62D 6/02 (2006.01) B62D 5/08 (2006.01)

Patent

CA 1039203

ABSTRACT OF THE DISCLOSURE The present invention relates to a power steering apparatus for a vehicle of the type in which a changeover valve, arranged to be operated in one or the other direction by turning of a steering shaft so that a supply oil passage connected to an operation oil pressure source may be put in communication with either a right chamber or a left chamber of a power cylinder, is provided with at least one oil pressure reaction chamber. arranged to be reduced in volume by the operation in either direction of the changeover valve. The oil pressure reaction chamber is in communication through a first throttle with the supply oil passage and through a second throttle with an exterior oil tank and at least one of the two throttles is variable in proportion to a vehicle speed so that the opening area ratio of the first throttle to the second throttle may be increased according to increase of the vehicle speed.

233047

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