Continuous capacity control for a multi-stage compressor

Details Continuous capacity control for a multi-stage compressor Continuous capacity control for a multi-stage compressor

1998-02-02

2000-06-27

Yuen, Henry C.

Pumps

Processes

417253, 418 6, F04B 300, F01C 130

Patent

active

060799528

ABSTRACT:
A control strategy for a multiple stage rotary compressor having compressive capacity output based on the demand of an air conditioning system. The constant variance in capacity to meet demand is obtained by recirculation of the multiple stages. Capacity is reduced to less than full capacity by recirculating the output of each stage back to the input of that particular stage. Capacity is increased up to full capacity by decreasing recirculation of the output of each stage back to the input of that particular stage. Additional stages and or portions operate in the same manner and provide further recirculation variability to provide a recirculation schedule based on demand.

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