Scroll compressor with motor control for capacity modulation

Details Scroll compressor with motor control for capacity modulation Scroll compressor with motor control for capacity modulation

2006-08-01

2006-08-01

Yu, Justine R. (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C326S044000, C418S069000

Reexamination Certificate

active

07083397

ABSTRACT:
Several transmission embodiments selectively communicate rotary drive to an orbiting scroll to achieve capacity modulation. In these embodiments, when the motor is driven in a first direction, the orbiting scroll is driven at a rate which is equal to the motor speed. However, if the motor is driven in a reverse direction, the orbit rate of the orbiting scroll is reduced. The transmission ensures that the orbiting scroll member itself is driven in the proper forward direction regardless of whether the motor is being driven in forward or reverse.

REFERENCES:
patent: 3319494 (1967-05-01), Ulbing
patent: 4137014 (1979-01-01), Parker
patent: 4137798 (1979-02-01), Sisk et al.
patent: 4494447 (1985-01-01), Sisk
patent: 4934910 (1990-06-01), Utter
patent: 5494421 (1996-02-01), Wada et al.
patent: 5803716 (1998-09-01), Wallis et al.
patent: 0052461 (1981-11-01), None
patent: 0126238 (1984-03-01), None
patent: 1593446 (1978-05-01), None
European Search Report dated Nov. 22, 1999.

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