发明名称 |
Hydraulic control apparatus for a power steering device |
摘要 |
In a handle steering force control mechanism adapted to stabilize steering feeling of a steering handle by imparting hydraulic reaction to a power steering device when the vehicle is travelling at high speed, a hydraulic control apparatus for supplying stabilized pressure oil to the power steering device and a hydraulic reaction chamber. This hydraulic control apparatus comprises a main spool and a sub-spool slidably inserted into the main spool to form a variable throttle whose open area is varied by relative displacement therebetween. This variable throttle, when the vehicle travels at high speed, closes the main valve side by the sub-spool and opens the hydraulic reaction side to increase reaction pressure. When reaction pressure reaches a predetermined value in response to steering pressure, the main spool is displaced by pressure oil to cut the reaction pressure.
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申请公布号 |
US4637484(A) |
申请公布日期 |
1987.01.20 |
申请号 |
US19850725422 |
申请日期 |
1985.04.22 |
申请人 |
KOYO JIDOKI KABUSHIKI KAISHA |
发明人 |
IJIRI, WAICHIRO;HIRAKUSHI, SHUZO |
分类号 |
B62D6/02;B62D6/00;(IPC1-7):B62D5/08 |
主分类号 |
B62D6/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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