Scroll compressor
AssigneeFujitsu General Limited
InventorNaoya Morozumi
Life of this patent
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Abstract
In order to give appropriate back pressure to an orbiting-scroll during any operation, on one end side of a cylindrical thrust ring, there is provided a flange portion, and a movable range of the orbiting-scroll in an axial direction with respect to a regulation surface of a main frame is indirectly regulated through this flange portion, on the flange portion, there is provided a groove, and the groove is caused to communicate to a first back-pressure chamber at a low-pressure side.
Claims7
A scroll compressor, in which between a base plate back surface of an orbiting-scroll and a main frame, there is provided a thrust ring, and in which one end surface of said thrust ring seals in slidable contact with the base plate back surface of said orbiting-scroll to thereby partition the base plate back surface of said orbiting-scroll into a plurality of pressure spaces,
- characterized in that said thrust ring has a main body of a ring to be fitted along an inner peripheral surface of said main frame, and a flange portion having a larger outer diameter than an outer diameter of said inner peripheral surface, and between the base plate back surface of said orbiting-scroll and a regulation surface provided on said main frame side, there is interposed said flange portion, whereby a movable range of said thrust ring in the axial direction is regulated.
Dependencies are inferred from the claim text.