| 摘要 |
PROBLEM TO BE SOLVED: To prevent abnormal wearing and seizure of bushes in a rotary compressor.SOLUTION: A rotary compressor includes a cylinder, a piston, and a pair of bushes (45a and 45b) supporting a blade (35) disposed in a groove portion (48) formed on the piston, and integrated with the cylinder, while holding it from both sides. At least one of the pair of bushes (45a and 45b) includes an oil supply passage (1) formed from a flat side face (7) of the bush (45a and 45b) to a curved side face (6), a blade-side oil reserving portion (2) formed on the flat side face (7) of the bush (45a and 45b) by opening one end of the oil supply passage (1), and a groove-side oil reserving portion (3) formed on the curved side face (6) of the bush (45a and 45b) by opening the other end of the oil supply passage (1), and wider than the blade-side oil reserving portion (2). |
