Air conditioning circuit control using a thermostatic...

Details Air conditioning circuit control using a thermostatic... Air conditioning circuit control using a thermostatic...

2008-05-20

2010-10-26

Norman, Marc E (Department: 3744)

Automatic temperature and humidity regulation

Thermostatic

With pressure control

C062S222000, C062S296000

Reexamination Certificate

active

07819333

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.

REFERENCES:
patent: 2573522 (1951-10-01), Watt
patent: 4542852 (1985-09-01), Orth et al.
patent: 5597117 (1997-01-01), Watanabe et al.
patent: 6325296 (2001-12-01), Dayton
patent: 6375085 (2002-04-01), Martin et al.
patent: 6394360 (2002-05-01), Watanabe et al.
patent: 2002/0109012 (2002-08-01), Watanabe et al.
patent: 2009/0045264 (2009-02-01), Lou et al.

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