| 摘要 |
PROBLEM TO BE SOLVED: To reduce surface pressure by making a main vane part in a main vane groove part and a guide vane part in a guide vane groove part in such a way as to receive forces acted on a vane by differential pressure between an intake chamber and a compression chamber, and to increase a sliding loss by both ends supporting the vane to prevent partially abutting. SOLUTION: A compressing system part composed of a crankshaft 2, a main bearing 3, an auxiliary bearing 4, a cylinder 5, a vane 19, and a roller 7, is provided in a closed container, and the vane 19 is provided in a vane groove 20 of the cylinder 5 so as to freely reciprocate. In this case, the vane groove 20 is composed of a main vane groove part 21 provided on the cylinder 5 and a guide vane groove part 22 provided on the main bearing 3, and the vane 19 is composed of a main vane part 23 and a guide vane part 24. Forces acted on the vane 19 by differential pressure between an intake chamber and a compression chamber is received with the main vane part 23 in the main vane groove part 21 and the guide vane part 24 in the guide vane groove part 22 to reduce surface pressure and decrease the possibility of partially abutting of the vane 19.
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