发明名称 |
Speed control for hydraulic pump |
摘要 |
The hydraulic pump has a rotor which rotates together with an input shaft linked with an automobile's engine, and generates a hydraulic pressure to be applied to a hydraulic actuating apparatus on the automobile. The hydraulic pump also has a transmission unit provided between a rotating shaft of the rotor and the input shaft so as to change a transmission ratio therebetween, and a hydraulic clutch which changes the transmission unit by means of the hydraulic pressure generated at a discharge side of a pump main body so as to apply the pressure to the apparatus. Therefore, the transmission according to an operating state of the apparatus and a rotational speed of the engine can be realized with a simple constitution and no requirement for a sensor for detecting a running state and a controller for controlling according to the detection. <IMAGE> |
申请公布号 |
EP0931937(A1) |
申请公布日期 |
1999.07.28 |
申请号 |
EP19980118986 |
申请日期 |
1998.10.07 |
申请人 |
KOYO SEIKO CO., LTD. |
发明人 |
NATSUNARI, KOICHI;SANO, OSAMU |
分类号 |
F04C14/08;F04C15/00;F16H3/54 |
主分类号 |
F04C14/08 |
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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