HIGH-PRESSURE DOOM TYPE COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To inhibit refrigerant in a cylinder chamber from being heated by high-pressure refrigerant in a casing.SOLUTION: A cylinder (51) is formed with a cavity part (70) passing therethrough in the thickness direction. The cavity part (70) is formed at a position radially outward of a cylinder chamber (55) while extending along the inner peripheral edge of the cylinder chamber (55). On the faces of a front head (52) and a rear head (53) at the side of the cylinder (51), heat insulation parts (71) having heat insulating performance are provided. The heat insulation parts (71) are each provided at a position of overlapping with an inner peripheral part (75) of the cylinder (51), radially inward of the cavity part (70) in a planar view.SELECTED DRAWING: Figure 2