Scroll-type compressor with reduced start-up orbiting radius

Details Scroll-type compressor with reduced start-up orbiting radius Scroll-type compressor with reduced start-up orbiting radius

1994-10-13

1996-05-28

Vrablik, John J.

Rotary expansible chamber devices

With delayed load

418 555, 418 57, F04C 1804

Patent

active

055205240

ABSTRACT:
A scroll compressor having a driving shaft 6, on which a bushing 10 and a balancing weight 9 are supported. The drive shaft 6 includes, at its end, a drive projection 6a, which is engaged with a driven groove 10a formed in the bushing 10. A spring 20 is arranged between the drive projection 6a and the bushing 10 for urging the latter radially inwardly to reduce the radius of the orbital movement of the bushing 10. A centrifugal force generated in the bushing when the drive shaft 6 is rotated causes the bushing 10 to be moved radially outwardly to increasing the radius of the orbital movement of the bushing 10.

REFERENCES:
patent: 3924977 (1975-12-01), McCullough
patent: 4383805 (1983-05-01), Teegarden et al.
patent: 4457675 (1984-07-01), Inagaki et al.
patent: 4580956 (1986-04-01), Takahashi et al.
patent: 5290161 (1994-03-01), Swain
patent: 5328342 (1994-07-01), Ishii et al.

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