HERMETICALLY CLOSED TYPE SCROLL COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To provide a hermetically closed type scroll compressor for preventing lubricating oil in a lubricating oil sump from flowing back to a suction side and going out when stopping the compressor and preventing reverse rotation of a turning scroll. SOLUTION: A through-hole disposed in a check valve and a communicating groove disposed for bypassing the check valve allow a slight amount of gas to flow in a compressing mechanism and a closed vessel even in a closed state of the check valve. Thus, pressure equalization of discharge pressure and suction pressure can be speeded up without reverse rotation of the turning scroll 2 when stopping the compressor, so that the compressor having high reliability for preventing backflow of the lubricating oil to the suction side and going out of the lubricating oil in the lubricating oil sump 22 is provided.