Patent ID: 7798782
Filing Date: 2010-09-21
Classification: F04B

Abstract:
1. An apparatus for controlling an operation of a reciprocating compressor comprising: a detector to detect a top dead center (TDC) position and a bottom dead center (BDC) position of a piston of the reciprocating compressor as the piston moves during a reciprocating cycle; and a controller to reset the TDC and the BDC independently from one another according to respective first and second reference positions, wherein at least one of the detected TDC position or the detected BDC position does not equal a respective one of the first or second reference positions, wherein the controller resets the TDC to correspond to the first reference position based on the detected TDC position and the detected BDC position and independently resets the BDC to correspond to the second reference position, and wherein the controller resets the BDC to correspond to the second reference position based on the detected TDC position and the detected BDC position and independently resets the TDC to correspond to the first reference position.