| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary compressor which maintains the good sliding state of a roller while securing the injection amount of an intermediate pressure refrigerant.SOLUTION: A rotary compressor includes: a crank shaft 22; a cylinder 50; a rear head 60; a front head 40; and a piston 31 which includes a roller 80 and a blade 90. An injection passage 61a for flowing an intermediate pressure refrigerant from the exterior to a compression chamber S1 is formed at the rear head 60. A first end surface 81a of the roller 80 includes a first wide surface 81a1 in which a radial width becomes partially large. An outlet opening 61a1 of the injection passage 61a is closed by the first wide surface 81a1 when a revolving angle of the roller 80 is in a predetermined range. A second end surface 82a of the roller 80 includes a second wide surface 82a1. The second wide surface 82a1 is located at the same position as the first wide surface 81a1 in a plane view. |
