Investigation on the jump phenomenon of linear compressor

Abstract

According to the experiments on the linear compressor operating in the refrigeration system, the occurrence conditions and regularity of jump phenomenon is investigated on different working conditions. When jump phenomenon happens, the current, input power, as well as piston stroke jumps upward abruptly. Under the same discharge pressure condition, the higher the power frequency is, the earlier the jump phenomenon will happen. When the power frequency decreases under a certain value, the jump phenomenon will disappear. The lower the discharge pressure is, the wider the power frequency range of jump phenomenon occurrence will be. Through the phase angle analysis, it is discovered that the jump phenomenon occurs not only on the status of mechanical resonance but also on the status of electromagnetic oscillation. © Springer International Publishing Switzerland 2014.