| 摘要 |
PROBLEM TO BE SOLVED: To improve the reliability of bush sliding portions by enhancing the oil retaining performance of the bush sliding portions in a vane type compressor.SOLUTION: A vane type compressor 200 comprises: a nearly cylindrical cylinder 1; a rotor shaft 4 including a cylindrical rotor portion 4a rotating in the cylinder 1 and shaft portions 4b, 4c transmitting a rotating force to the rotor portion 4a; and vanes 5, 6 arranged in the rotor portion 4a and including vane end portions 5b, 6b formed in an arc shape on the outside. The rotor portion 4a is provided with bush retaining portions into which a pair of nearly semi-cylindrical bushes 7 or 8 are inserted, and the vanes 5, 6 are sandwiched between the bushes 7 or 8 and are supported so as to be rotatable and movable with respect to the rotor portion 4a. Oil grooves 7f, 7g, 8f, 8g communicating with concave portions 2a, 3a are formed on side surfaces 7b, 7e, 8b, 8e of the bushes 7, 8. |
