| 摘要 |
PURPOSE:To reduce wear due to slide between a revolving scroll and a thrust support by a method wherein a reinforcing ring is disposed between the revolving scroll and the thrust support, a plurality of communicating holes and an oil groove are formed in the reinforcing ring. CONSTITUTION:After fluid is sucked through a suction pipe 1a extending through a casing 1 and compressed in association of fixed and revolving scrolls 2 and 4 with each other, it is discharged through a delivery pipe 1b. In this case, a reinforcing ring 5 having wear resistance is disposed between the back of an end plate 4a of the revolving scroll 4 and a thrust support 6 to support a thrust forcibly produced along with revolution of the revolving scroll. A plurality of communicating holes 5b extending through each of the contact surfaces of the revolving scroll 4 and the thrust support 6 are formed in the reinforcing ring 5. An oil groove 5d for intercommunicating each communicating hole 5b and a crank shaft 3b is formed in the surface, making contact with the end plate 4a, of the reinforcing ring 5. |
