2 STAGE ROTARY COMPRESSOR

摘要

A 2-stage rotary compressor is provided to introduce gas refrigerant from a phase separator of a refrigerating cycle into a compressor to carry out high pressure compression of the same with refrigerant, for which low pressure compression is finished. An internal path penetrates a central plate(140) for introducing refrigerant compressed in a low pressure compression assembly(120) into a high pressure compression assembly(130). An injection pipe(153) is connected to a through-hole(153h) formed in any one of the internal path, the high pressure cylinder and the low pressure cylinder for minimizing the lowering of pressure of the compressed refrigerant.