SUCTION MUFFLER FOR COMPRESSOR, COMPRESSOR, AND DEVICE WITH REFRIGERANT CIRCULATION CIRCUIT

摘要

PURPOSE: A suction muffler for a compressor, the compressor, and a device with a refrigerant circulation circuit are provided to maximize the quantity of a refrigerant moving in a compression chamber and to minimize suction noise produced during refrigerant suction. CONSTITUTION: A suction muffler(400) for a compressor comprises a passage pipe(41) and an outer wall body(42). An outlet(41a) of the passage pipe is cut off from the compression chamber side in which compression of a refrigerant is executed and an inlet(41b) of the passage pipe is connected to the suction pipe side guiding the external refrigerant to the compressor. The outer wall body has structure of converting the movement of the refrigerant moving from a suction pipe(600) to the inlet side into spiral movement. The inner sectional shape of the outer wall body is U-shaped. The outer wall body guides the refrigerant of the suction pipe to the side of the passage pipe and covers from the outer middle end of the passage pipe to the inlet while forming a passage space. The outer wall body includes a guide pipe(46) guiding the refrigerant of the suction pipe to the side of the passage pipe. The guide pipe has a curved passage to reduce movement friction of the refrigerant.