| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for reducing mechanical loss in both end surfaces of a piston and preventing oil from penetrating into a cylinder chamber.SOLUTION: A rotary compressor 100 includes a closed vessel 1, a cylinder 15, a piston 28, a lower bearing member 7, a vane 33, an inlet 20, and a groove part 7d. A first flat face H1 and a second flat face H2 form four divided sections. The lower bearing member 7 includes a first section S1, adjacent to an inlet 20, of the four divided sections and a second section S2 having the remaining three sections. The groove part 7d is shaped along a periphery of a bearing hole 7a and is wholly provided in the second section S2. |
