SCROLL COMPRESSOR

摘要

A scroll compressor, wherein a pressure Pm1 (MPa) in a boss part outside space determined by a choke or a flow control valve installed in an oil feed line is set to Pm1=Ps+ alpha , and an alpha value in the above expression where the minimum pressure difference value between high and low pressures is expressed by min (Pd-Ps) is set within the range shown by 0< alpha <min (Pd-Ps) in the operating pressure range of the scroll compressor, where Ps is the suction pressure (MPa) of the compressor and Pd is the delivery pressure (MPa) of the compressor.