公开(公告)号：US06520746B2

公开(公告)日：2003-02-18

申请号：US09962076

申请日：2001-09-26

申请人： Jae Yoo Yoo ,  Hyung Jin Kim ,  Kye Si Kwon

发明人： Jae Yoo Yoo ,  Hyung Jin Kim ,  Kye Si Kwon

IPC分类号： F04B4906

CPC分类号： F04B49/065 ,  F04B2201/0206 ,  F04B2203/0401 ,  F04B2203/0402

摘要： In an apparatus and a method for controlling operation of a reciprocating compressor which is capable of operating a compressor stably by detecting a phase difference and using an inflection point of the phase difference, an apparatus and a method for controlling operation of a reciprocating compressor including an electric circuit unit operating a reciprocating compressor by varying a stroke with motion of a piston, a phase difference detecting unit detecting a phase difference of a current and a voltage from the electric circuit unit, a phase inflection point detecting unit detecting a phase inflection point by being inputted the phase difference, and a stroke controlling unit being inputted the detected phase inflection point from the phase inflection point detecting unit and applying a voltage, to the electric circuit unit in order to make the stroke correspond to the phase inflection point can control a TDC of a piston regardless of load variation, improve an operation efficiency of a reciprocating compressor, and because a stroke calculating circuit is not required, there is no stroke calculating error according to the motor constant variation, in addition, it is possible to operate a reciprocating compressor by corresponding instantly to a load and operate the reciprocating compressor in a safe region in sensing of an overload by grasping the present load condition using a reference value of a phase difference.

摘要翻译： 在能够通过检测相位差并使用相位差的拐点来稳定地运行压缩机的往复式压缩机的运转控制装置和方法中，包括： 电路单元，其通过活塞的运动改变行程来操作往复式压缩机;相位差检测单元，其检测来自所述电路单元的电流的相位差和电压;相位拐点检测单元，其检测相位拐点; 输入相位差，并且行程控制单元从相位拐点检测单元输入检测到的相位拐点并向电路单元施加电压，以使得笔画对应于相位拐点可以控制一个 TDC的活塞不管负载变化如何，提高了运行效率 的往复式压缩机，并且由于不需要行程计算电路，所以根据电动机常数变化不存在行程计算误差，此外，可以使往复式压缩机立即对负载进行操作并操作往复式压缩机 在通过使用相位差的参考值掌握当前负载条件来感测过载的安全区域中。