Fixed and variable compressor system capacity control

Details Fixed and variable compressor system capacity control Fixed and variable compressor system capacity control

2011-04-05

2011-04-05

Cuff, Michael (Department: 3741)

Pumps

Plural pumps with individual or relative control

C417S286000, C417S287000

Reexamination Certificate

active

07918655

ABSTRACT:
A compressor control system includes at least one variable compressor, at least one fixed-capacity compressor, and a controller. The controller modulates the variable compressor based on a suction pressure reading of the variable compressor. In addition, the controller selectively toggles the fixed-capacity compressor between a run mode and a shutdown mode based on an operating parameter of the variable compressor.

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patent: 2002/0157409 (2002-10-01), Pham et al.
Notification of First Office Action received from The Patent Office of the People's Republic of China dated Mar. 13, 2009 regarding Application No. 200580013707.5. Translation by CCPIT Patent and Trademark Law Office.

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