Hermetic compressor and refrigeration cycle device having the same

摘要

A hermetic compressor (1) and a refrigeration cycle device having the same, fitted with an oil separator (100) for separating oil from a refrigerant discharged from a compression unit. Separated oil is recollected into an oil pump (1000) driven by a driving motor (20). The oil used for a crankshaft lubrication process is returned to the oil pump (1000) by forming an oil pocket between bearing surfaces of a crankshaft (23) and the oil pump, oil may be prevented from back-flowing to the oil separator (100) from the crankshaft (23).