Pumps – With condition responsive pumped fluid control – Normally open bypass or relief passage closed by increased...
Patent
1995-12-19
1997-10-21
Gluck, Richard E.
Pumps
With condition responsive pumped fluid control
Normally open bypass or relief passage closed by increased...
417310, F04C 1802, F04B 4902
Patent
active
056789858
ABSTRACT:
A scroll-type refrigeration compressor is disclosed which incorporates an efficient, reliable, low cost modulation system employing a single actuator to effect switching between full and reduced capacity operation. The modulation system of the present invention includes an annular valving ring rotationally supported on the non-orbiting scroll which operates to ensure simultaneous opening and closing one or more unloading passages thus avoiding the possibility of even transient pressure imbalances between opposed compression pockets during operation of the compressor or in one of the alternative embodiments, providing a controlled imbalance to provide a noise reducing torsional loading on the Oldham coupling. Further, the modulation system of the present invention provides for reduced capacity at both start up and shut down thus enabling the use of more efficient lower starting torque motors and reducing the potential for noise generating reverse rotation on shut down.
REFERENCES:
patent: 4383805 (1983-05-01), Teegarden et al.
patent: 4456435 (1984-06-01), Hiraga et al.
patent: 4468178 (1984-08-01), Hiraga et al.
patent: 4497615 (1985-02-01), Griffith
patent: 4514150 (1985-04-01), Hiraga et al.
patent: 4566863 (1986-01-01), Goto et al.
patent: 4673340 (1987-06-01), Mabe et al.
patent: 4747756 (1988-05-01), Sato et al.
patent: 5074760 (1991-12-01), Hirooka et al.
patent: 5074761 (1991-12-01), Hirooka et al.
patent: 5192195 (1993-03-01), Iio et al.
patent: 5551846 (1996-09-01), Taylor et al.
patent: 5562426 (1996-10-01), Watanabe et al.
Brooke Richard Dana
Stover Robert Christopher
Copeland Corporation
Gluck Richard E.
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