Non-contiguous thrust bearing interface for a scroll compressor

Details Non-contiguous thrust bearing interface for a scroll compressor Non-contiguous thrust bearing interface for a scroll compressor

1997-06-03

1999-09-14

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 555, 418 57, F04C 1804

Patent

active

059512709

ABSTRACT:
A scroll compressor having a thrust bearing interface between a fixed and orbiting scroll member. The scroll members are axially biased together by an axial compliance mechanism and the thrust bearing interface transfers axial forces between the two scroll members. The thrust bearing interface is disposed radially exterior to the wrap elements of the two scroll members and includes non-contiguous thrust bearing elements separated by void spaces located therebetween. Alternative embodiments of the thrust bearing elements include arcuate thrust bearing pads and roller bearings. The thrust bearing pads may include a channel disposed radially exterior to the pads which interconnects the void spaces. The roller bearings are separated by voids and disposed in recesses in outer perimeter portions of the fixed and orbiting scrolls. The voids, channel and recesses promote the distribution of lubricating oil to bearing surfaces of the thrust bearing interface.

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