Expansion device arrangement for vapor compression system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 20, 2007
Grant Date -
Jul 27, 2006
app pub date -
Jan 24, 2005
filing date -
Jan 24, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A carbon dioxide vapor compression system including a compressor, a first heat exchanger, an expansion device arrangement, and a second heat exchanger connected in a closed loop. The expansion device arrangement includes an inlet line disposed between the first heat exchanger and the expansion devices and an outlet line disposed between the expansion devices and the second heat exchanger. The expansion device arrangement includes at least three expansion devices with a fixed and variable expansion device being in parallel arrangement and another fixed expansion device being arranged in series with the parallel fixed and variable expansion devices. The expansion device arrangement may also include a flow path that extends from the inlet line to the outlet line and which includes only fixed expansion devices to provide a functional flow path through the expansion device arrangement if the variable expansion device fails.
First Claim
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