Scroll type compressor with improved bearing arrangement for dri

Details Scroll type compressor with improved bearing arrangement for dri Scroll type compressor with improved bearing arrangement for dri

1991-01-03

1992-06-09

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 556, 418100, F04C 1804, F04C 2902

Patent

active

051202050

ABSTRACT:
In a scroll type compressor, a movable scroll is engaged with an immovable scroll so that spaces are formed for taking in a fluid to be compressed. The movable scroll is revolved around a central axis of the immovable scroll, so that the spaces are displaced toward the centers of the walls while a volume thereof is reduced to compress the fluid therein. The revolution of the movable scroll is converted from a rotation of a drive shaft through an eccentric mechanism provided therebetween. The shaft is rotatably supported by first and second angular bearings, which are spaced apart from each other along a longitudinal axis of the shaft and are far from and adjacent to the eccentric mechanism, respectively. The first and second bearings are correlatively oriented, and thus an increase of a load to which the second bearing is subjected due to a force exerted upon the shaft in a cantilever manner during a compression operation is suppressed.

REFERENCES:
patent: 2792764 (1957-05-01), Carlsen et al.
patent: 4456435 (1984-06-01), Hiraga et al.
patent: 4484869 (1984-11-01), Nakayama et al.
patent: 4798523 (1989-01-01), Glaser et al.

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