Abstract: In this paper, the influence of different proportional loads on the reverse angle and rotating speed oscillation of the reciprocating compressor with double-acting cylinder was discussed by means of theoretical calculation of an example. The calculations show that the flow regulation method adopted in this paper can improve the reverse angle value and reduce the rotating speed oscillation under the low flow condition of the compressor. This method is beneficial to improve the rod bushing's lubricity and operation stability of the compressor, which can provide some guidance for the control of uneven load regulation of reciprocating compressor cylinder.

Key words: reciprocating compressor, stepless flow regulation, uneven regulation, reverse angle, rotating speed oscillation