| 摘要 |
PURPOSE: A booster adjustment device of speed-induction type of power steering for a vehicle is provided to enable oil pressure in a cylinder to pass to the right or the left of cylinder to adjust oil pressure, and to guarantee a steering safety corresponding to high speed and low speed. CONSTITUTION: A booster adjustment device of speed-induction type of power steering for a vehicle comprises: a piston(4) to be fixed in middle of rack bar (3) and to have a passage hole (41) to move oil pressure; an operation tool (71) to be fixed with the piston to open and close the passage hole; a adjustment device (7) to consist of a stepping motor (72) to step forward and backward the operation tool, and to control a steering booster by passing reciprocally oil in both side of piston.
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