Patent ID: 7819333
Filing Date: 2010-10-26
Classification: F25B

Abstract:
1. A valve assembly for an air conditioning system, the valve assembly comprising: a liquid line port pressurized at a discharge pressure, an evaporator inlet port pressurized at a suction pressure, and an outlet port between the liquid line port and the evaporator inlet port; a sequence valve located downstream of the liquid line port and upstream of the outlet port, the sequence valve regulating a first flow path between the liquid line port and the outlet port in response to a differential between the discharge pressure and the suction pressure; and a thermostatic expansion valve located downstream of the outlet port and upstream of the evaporator inlet port, the thermostatic expansion valve including an actuator that moves in response to a pressure differential between a charge pressure and the suction pressure, and an expansion valve member that regulates a second flow path between the outlet port and the evaporator inlet port in response to movement of the actuator.