Variable capacity rotary compressor

Details Variable capacity rotary compressor Variable capacity rotary compressor

2007-02-13

2007-02-13

Nguyen, Hoang (Department: 3748)

Rotary expansible chamber devices

With changeable working chamber magnitude

Rotating inner working or reacting member repositioned...

C418S060000

Reexamination Certificate

active

11006540

ABSTRACT:
A rotary compressor including upper and lower compression chambers having different interior capacities thereof, a rotating shaft having a locking hole, upper and lower eccentric cams provided on the rotating shaft to be eccentric from the rotating shaft, upper and lower eccentric bushes fitted over the upper and lower eccentric cams, respectively, and a locking pin inserted into the locking hole to change a position of the upper or lower eccentric bush to a maximum eccentric position. A slot is provided at a position between the upper and lower eccentric bushes. Further, a surface-treated part is provided around the locking hole to increase an hardness thereof, thus preventing the surrounding of the locking hole from being worn out when the locking pin collides with a first end or a second end of the slot.

REFERENCES:
patent: 4416573 (1983-11-01), Matalis et al.
patent: 5242280 (1993-09-01), Fujio
patent: 5802896 (1998-09-01), Tsai
patent: 5871342 (1999-02-01), Harte et al.
patent: 7070395 (2006-07-01), Lee et al.
patent: 07333703 (1995-12-01), None

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