MOTOR DRIVEN VALVE AND COOLING/HEATING SYSTEM
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United States of America Patent
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N/A
Issued Date -
Jan 22, 2009
app pub date -
Jun 25, 2008
filing date -
Jul 3, 2007
priority date (Note) -
Abandoned
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Abstract
for cooling/heating systems and to control flow rate of refrigerant in cooling in the first valve opening range and allow a large amount of the refrigerant to pass the valve in heating, so that only one electronic valve can satisfy performance of conventional valves.
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