Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1993-11-15
1994-11-08
Bertsch, Richard A.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418 57, 418151, F01C 104
Patent
active
053622189
ABSTRACT:
A scroll type compressor comprising mutually mating stationary and movable scroll members, a drive shaft, a counterweight, a slide key extending from the drive shaft, and a drive bush slidably fit on the slide key. The counterweight is immovably fit on the drive shaft. The slide key has a first axis offset from the longitudinal axis of the drive shaft for causing the movable scroll member to revolve around the longitudinal axis of the drive shaft, and a second axis perpendicular to the first axis. In the second form of the compressor, the counterweight has a guide portion having a first axis offset from the longitudinal axis of the drive shaft for causing the movable scroll member to revolve around the longitudinal axis of the drive shaft, and a second axis. The drive bush is slidably fit on the guide portion. The drive bush is movable along the second axis of the slide key or the guide portion to a smaller extent in one direction by which the eccentricity between the longitudinal axis of the drive shaft and the longitudinal axis of the drive bush is increased, and to a greater extent in the other direction by which the eccentricity is decreased.
REFERENCES:
patent: 4764096 (1988-08-01), Sawai et al.
patent: 5145346 (1992-09-01), Lio et al.
patent: 5199862 (1993-04-01), Kondo et al.
Fukanuma Tetsuhiko
Izumi Yuji
Shimizu Izuru
Watanabe Yasushi
Yamada Kiyohiro
Bertsch Richard A.
Freay Charles G.
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
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