Patent ID: 7036624
Filing Date: 2006-05-02
Classification: B62D,F15B

Abstract:
1. A power steering system, comprising: a power cylinder, the power cylinder comprising a sleeve and a piston rod accommodated therein; a steering-force transmitting gear linked to the piston rod; a gear housing which accommodates the steering-force transmitting gear; a cylindrical wall formed with the gear housing, the cylindrical wall comprising an outer-periphery general face; a butt wall formed with the gear housing, the butt wall being substantially orthogonal to the cylindrical wall, the sleeve of the power cylinder being engaged on an outer periphery of the cylindrical wall with an end face of the sleeve abutting on the butt wall; a first R-shaped portion formed with the cylindrical wall, the first R-shaped portion curvedly extending from the outer-periphery general face to an outer periphery of the butt wall; and a second R-shaped portion formed with the cylindrical wall, the second R-shaped portion being arranged between the butt wall and the first R-shaped portion, the second R-shaped portion being smaller in radius of curvature than the first R-shaped portion.