| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-efficiency rotary compressor capable of suppressing sliding loss on an eccentric part, wear of a roller and coolant leakage loss caused near the roller even when the eccentric amount of the eccentric part is enlarged.SOLUTION: A lower roller 11 of a rotary compressor 100 is composed of an inner circumference side roller 11b and an outer circumference side roller 11a. Therein, the inner circumference side roller 11b is constituted with a plurality of ring bodies 11c divided in the center shaft direction of a sub-shaft side eccentric part 4d. Further, a crank shaft 4 is formed such that an outer circumference surface on the anti-eccentric side of the sub-shaft side eccentric part 4d is located on the inner side than the outer circumferential surface of a sub-shaft 4b and a vent part 4g for moving the ring body 11c to the eccentric direction of the sub-shaft side eccentric part 4d is formed. |
