Refrigerant cycle with tandem economized and conventional...

Details Refrigerant cycle with tandem economized and conventional... Refrigerant cycle with tandem economized and conventional...

2005-10-18

2005-10-18

Norman, Marc (Department: 3744)

Refrigeration

Automatic control

Diverse, cascade or compound refrigeration-producing system

C062S197000, C062S510000, C062S513000

Reexamination Certificate

active

06955058

ABSTRACT:
A refrigerant cycle is provided with tandem compressors. Only some of the multiple compressors are provided with an economized cycle, and an optional unloader valve for selectively returning flow from an economizer injection port back to suction. The present invention thus provides the economized operation capabilities and benefits for a refrigerant cycle having tandem compressors, without the complexity of providing separate economizer arrangement for each of the compressors.

REFERENCES:
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Systems & Advanced Technologies Engineering S.r.I., publication entitled “Compsys—Dynamic Simulation of Gas Compression Plants”, dated Jun. 12, 2002.
Copeland Europe publication entitled “Refrigeration Scroll for Parallel Applications” dated Feb. 26, 2002.

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