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1. 发明授权

US5141402A Power transmission 失效
标题翻译：电力传输
公开(公告)号：US5141402A
公开(公告)日：1992-08-25
申请号：US647609
申请日：1991-01-29
申请人： James V. Bloomquist , Albin J. Niemic
发明人： James V. Bloomquist , Albin J. Niemic
IPC分类号： B29C45/82 , F04B49/06 , H02K17/30
CPC分类号： B29C45/82 , F04B49/06 , F04B49/065 , H02K17/30 , F04B2201/0403 , F04B2201/0805 , F04B2201/12051 , F04B2203/0201 , F04B2205/05
摘要： An electric-motor hydraulic pump includes a housing having a stationary internal shaft. A pair of cylinder blocks are rotatably carried by the shaft within the housing, and an array of pistons are slidably disposed with each cylinder block. A yoke plate is mounted within the housing and engages the pistons for determining displacement of the pistons within the cylinder blocks. Fluid inlet and outlet ports are provided in the housing and are coupled to the cylinder blocks. An induction motor includes a rotor carried by the cylinder block for corotation therewith, and a stator mounted within the housing surrounding the rotor. An electronic controller for controlling outlet fluid pressure and flow from the pump includes a plurality of sensors mounted on the housing for sensing operating characteristics of the pump and motor to provide electronic sensor signals as functions thereof. Control electronics are responsive to the sensor signals for controlling fluid pressure and flow from the pump by varying effective displacement of the pump, and by varying the electrical power (current and frequency) applied to the motor.
摘要翻译：电动机液压泵包括具有固定内部轴的壳体。一对气缸体由轴可旋转地支承在壳体内，并且活塞阵列可滑动地布置有每个气缸体。轭板安装在壳体内并与活塞接合，以确定活塞在气缸体内的位移。流体入口和出口设置在壳体中并且联接到气缸体。感应电动机包括由气缸体承载的用于与其共旋转的转子和安装在围绕转子的壳体内的定子。用于控制出口流体压力和来自泵的流量的电子控制器包括安装在壳体上的多个传感器，用于感测泵和马达的操作特性，以提供作为其功能的电子传感器信号。控制电子设备响应于传感器信号，通过改变泵的有效位移以及通过改变施加到电动机的电功率（电流和频率）来控制流体压力和来自泵的流量。

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