Scroll compressor with three-step capacity control
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United States of America Patent
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-
Dec 11, 2012
Grant Date -
Jul 22, 2010
app pub date -
Jan 22, 2009
filing date -
Jan 22, 2009
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A scroll compressor comprises a first scroll member having a generally spiral wrap and a second scroll member having a generally spiral wrap. The generally spiral wraps interfit to define compression chambers. A pair of ports leads from the compression chambers. A pair of valves selectively blocks flow of refrigerant from the ports leaving the compression chambers. The valves selectively control the flow such that flow may pass from neither of the two ports, from both of the two ports, or from only one of the two ports to provide three levels of capacity control.
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