Hydraulic power steering device responsive to speed of vehicle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 2, 1993
Grant Date -
N/A
app pub date -
Mar 25, 1991
filing date -
Apr 16, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hydraulic power steering device responsive to the speed of a vehicle and comprising a housing, an output shaft disposed in the housing, an input shaft disposed in the housing and coaxial with the output shaft, a torsion bar provided between the output shaft and the input shaft, a control valve provided around the input shaft for controlling the amount of pressure oil to be supplied from a hydraulic pump to a power cylinder in accordance with the torsion of the torsion bar, and plungers each slidably fitted in a hole formed in the output shaft, each of the plungers being adapted to be pressed at its forward end against the input shaft by oil pressure in accordance with the vehicle speed to obtain a reaction. At least one of the portion of the plunger slidable in contact with the inner peripheral surface of the output shaft defining the hole and the portion of the plunger to be pressed into contact with the input shaft is made of a synthetic resin.
First Claim
Other Claims data not available