Air conditioning circuit control using a thermostatic expansion valve and sequence valve
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United States of America Patent
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-
Oct 26, 2010
Grant Date -
Nov 26, 2009
app pub date -
May 20, 2008
filing date -
May 20, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve assembly for an air conditioning system includes a liquid line port pressurized at a discharge pressure, an evaporator inlet port pressurized at a suction pressure, a sequence valve for controlling a first flow path between the liquid line port and an outlet in response to a differential between the discharge pressure and the suction pressure, and a thermostatic expansion valve that includes an actuator and an expansion valve member for controlling a second flow path between the outlet and the evaporator inlet port in response to a pressure differential across the actuator.
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Family
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