Noise Reduction in a Thermostatic Expansion Valve
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United States of America Patent
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N/A
Issued Date -
Jun 11, 2009
app pub date -
Dec 6, 2007
filing date -
Dec 6, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A thermostatic expansion valve assembly is provided for an air conditioning system. A thermostatic expansion valve includes a valve body having an evaporator inlet port, an evaporator outlet port, a suction line port, and a liquid inlet port. The thermostatic expansion valve controls a flow of refrigerant from the liquid line port to the evaporator inlet port. A liquid line conduit is coupled to the liquid inlet port. The liquid line conduit has at least a segment elevated above the liquid inlet port. The vapor within the liquid inlet conduit accumulates at an uppermost portion of the segment prior to a compressor startup. A substantial amount refrigerant liquid is maintained between the uppermost portion of the segment and the liquid inlet port prior to the compressor startup.
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