In the process of oil production, the submersible reciprocating pump is driven by linearmotor, such pump application is novel lifting method which has been considered as with good controllability.
This system could precisely machine elliptic parts with high speed by the micro-reciprocating feed motion of linearmotor and the high speed performance of electrical spindle.
结合直线电机的微量往复进给运动和电主轴的高速性能，实现了对椭圆零件的高速精密加工。
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The paper introduce some new reciprocating pumps, analyze their pros and cons, and a conception of a new linearmotor-driven reciprocating pump is proposed.