Reciprocating compressor, for refrigerant gas, has adhesion preventing groove formed at suction valve contact region at front end surface of piston to minimize adhesion of valve to front end surface due to oil

摘要

An adhesion preventing groove (146a), formed at the suction valve contact region at the front end surface (146) of a piston (142), reduces contact area between the piston and a suction valve (143) to minimize adhesion of valve to front end surface due to oil.