发明名称 |
Electrohydraulic system and apparatus with bidirectional electric-motor/hydraulic-pump unit |
摘要 |
An electrohydraulic control system that includes a bidirectional electric motor responsive to application of electrical power for rotation in either of two directions, and a hydraulic pump coupled to the motor and having ports for supplying hydraulic fluid in either of two flow directions as a function of direction of rotation of the electric motor. A hydraulic actuator is coupled to the pump for receiving fluid in either of two flow directions and performing work as a function thereof. An electronic controller applies electrical power to the electric motor so as to obtain a desired level of work at the actuator. The electronic controller includes one or more sensors operatively coupled to the actuator for applying electrical power to the motor as a function of motion at the actuator. The bidirectional electric motor in the preferred embodiments of the invention comprises a fluid-cooled motor, and the system includes valves for routing hydraulic fluid through the motor housing between the pump and the actuator.
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申请公布号 |
US5778671(A) |
申请公布日期 |
1998.07.14 |
申请号 |
US19960712671 |
申请日期 |
1996.09.13 |
申请人 |
VICKERS, INC. |
发明人 |
BLOOMQUIST, JAMES V.;NIEMIEC, ALBIN J. |
分类号 |
F15B11/02;F15B21/08;F16H61/40;(IPC1-7):F16D31/02 |
主分类号 |
F15B11/02 |
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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