| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an effective technology preventing burning seizure of a bearing member and securing an installation space of a discharge valve, in a scroll type compressor having the bearing member interposed between a rotary shaft-side member and a boss part of a movable scroll. SOLUTION: In this scroll type compressor 1, the inner circumference side of the boss part 24a of a movable scroll base plate 24 is provided with a ring- shaped auxiliary ring 60 interposed in a position wherein the boss part 24a faces the plane bearing 22. The auxiliary ring 60 fills up a space between the boss part 24a and the plane bearing 22, and is pressed and fixed in the boss part 24a. By providing the auxiliary ring 60, an internal diameter of the boss part 24a can be increased to the utmost with suppressing increase in external diameters of the plane bearing 22 and a bush 16 on an eccentric shaft 14 side, as small as possible. Thereby, a discharge valve-setting space with a desired size can be secured on the inner circumference side of the boss part 24a, and peripheral speeds of the bush 16 and the plane bearing 22 can be reduced to suppress the burning seizure in sliding faces as thoroughly as possible.</p> |
