Dual volume-ratio scroll machine
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United States of America Patent
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Jan 20, 2004
Issued Date -
N/A
app pub date -
Jul 15, 2002
filing date -
Oct 16, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides the art with a scroll machine which has a plurality of built-in volume ratios along with their respective design pressure ratios. The incorporation of more than one built-in volume ratio allows a single compressor to be optimized for more than one operating condition. The operating envelope for the compressor will determine which of the various built-in volume ratios is going to be selected. Each volume ratio includes a discharge passage extending between one of the pockets of the scroll machine and the discharge chamber. All but the highest volume ration utilize a valve controlling the flow through the discharge passage.
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