Variable capacity rotary compressor

Details Variable capacity rotary compressor Variable capacity rotary compressor

2007-11-27

2007-11-27

Stashick, Anthony D. (Department: 3746)

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

C417S221000

Reexamination Certificate

active

10846538

ABSTRACT:
A variable capacity rotary compressor, including upper and lower compression chambers having different capacities, a rotating shaft passing through the upper and lower compression chambers, upper and lower eccentric cams provided on the rotating shaft, and upper and lower eccentric bushes fitted over the upper and lower eccentric cams, respectively. A slot is provided at a predetermined position between the upper and lower eccentric bushes. A locking pin, moves along the slot, to change a position of the upper or lower eccentric bush to a maximum eccentric position, and a clutch engages with the slot at a position opposite to the locking pin to thereby preventing the upper and lower eccentric bushes from slipping over the upper and lower eccentric cams, respectively.

REFERENCES:
patent: 5871342 (1999-02-01), Harte et al.
patent: 7144224 (2006-12-01), Kim et al.
patent: 2005-23924 (2005-01-01), None
U.S. Appl. No. 10/352,000, filed Jan. 28, 2003, Sung-Hea Cho, et al., Samsung Electronics Co., Ltd.
Office Action and related documents issued by the Japanese Patent Office (12 pages).

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