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    • 96. 发明申请
    • Linear motor controller improvements
    • 线性电机控制器改进
    • US20070152512A1
    • 2007-07-05
    • US10569747
    • 2004-09-02
    • Zhuang TianJohn Boyd
    • Zhuang TianJohn Boyd
    • H02K41/00H02K33/00
    • F04B35/045H02P25/06
    • A free piston gas compressor has a cylinder, a piston, the piston reciprocable within the cylinder in alternating compression and expansion strokes. A reciprocating linear electric motor is drivably coupled to the piston. A controller is programmed to control or adjust power input to the linear motor on the basis of a relationship including at least one of the present compression stroke or expansion stroke durations, the relationship being indicative of the top dead centre (TDC) position of the piston, including in the absence of any collision. In the preferred embodiment the controller obtains a measure reflecting the difference between the compression stroke duration and the expansion stroke duration and adjusts the power input in response to the obtained measure.
    • 自由活塞气体压缩机具有气缸,活塞,活塞在交替的压缩和膨胀冲程中在气缸内往复运动。 往复式线性电动机可驱动地联接到活塞上。 控制器被编程为基于包括当前压缩冲程或膨胀冲程持续时间中的至少一个的关系来控制或调整对线性马达的功率输入,该关系指示活塞的上止点(TDC)位置 ,包括在没有任何碰撞的情况下。 在优选实施例中,控制器获得反映压缩冲程持续时间和膨胀冲程持续时间之间的差异的度量,并根据获得的测量值调整功率输入。