Scroll machine with liquid injection
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United States of America Patent
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-
Sep 9, 2003
Grant Date -
N/A
app pub date -
Mar 26, 2002
filing date -
Mar 26, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A refrigeration circuit includes a scroll compressor, a condenser and an evaporator connected in a closed loop. A liquid injection system takes liquid refrigerant from the refrigerant circuit and injects it into a suction line leading to the compressor to cool the refrigerant in the refrigeration circuit. An electronic control unit operates a controllable valve based on a temperature reading received from a discharge gas temperature sensor. The controllable valve can be an electronic expansion valve or a solenoid valve.
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