TWO STAGE ROTARY COMPRESSOR SET

摘要

A 2-stage rotary compressor set is provided to increase an oil recovery rate and prevent liquid refrigerant and impurities by setting the diameter of oil recovery holes for the diameter of connection pipes. A connection pipe(220) is mounted in an accumulator(200) for introducing gas refrigerant from the accumulator to a 2-stage rotary compressor(100), and has at least two or more oil recovery holes(221,222) formed at different positions for introducing oil from liquid refrigerant separated by the accumulator.