Expansion valve integrated with solenoid valve

Details Expansion valve integrated with solenoid valve Expansion valve integrated with solenoid valve

2005-05-17

2005-05-17

Norman, Marc (Department: 3744)

Automatic temperature and humidity regulation

Thermostatic

With pressure control

C062S222000, C137S613000

Reexamination Certificate

active

06892953

ABSTRACT:
An expansion valve1integrated with a solenoid valve includes a valve body10and a valve chamber20formed inside the valve body10to which a high-pressure refrigerant is introduced. A valve member30forms a throttle flow path between a valve seat40, and controls the amount of refrigerant flowing therethrough. The valve body30is operated by the movement of a stopper member80of a power element60via an actuating rod100. The high-pressure refrigerant acts on a surface80aof the stopper member80opposite to a diaphragm70via a pressure equalizing passage12, a connecting chamber22of a solenoid valve200, and a pressure equalizing passage14. The stopper member80is sealed between the guide member90, so that the high-pressure refrigerant does not act directly on the diaphragm.

REFERENCES:
patent: 5588590 (1996-12-01), Sakakibara et al.
patent: 6533245 (2003-03-01), Takemoto et al.
patent: 20020174670 (2002-11-01), Kjong-Rasmussen
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patent: 10-073345 (1998-03-01), None
patent: 11-182983 (1999-07-01), None
patent: 11-325659 (1999-11-01), None
patent: 20030656633 (2003-03-01), None
International Search Report (Issue Mar. 3, 2004).

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