Expansion valve

Details Expansion valve Expansion valve

2007-05-29

2007-05-29

Ali, Mohammad M. (Department: 3744)

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

Reexamination Certificate

active

11044270

ABSTRACT:
The invention provides an improved structure for assembling components in an expansion valve used in air conditioners. An expansion valve body30has a valve chamber35and a passage32through which refrigerant from a compressor enters. The refrigerant passing through a flow path between a valve means32band an orifice32ais sent through a passage321toward an evaporator. The refrigerant returning from the evaporator passes through a passage34and flows toward the compressor. A power element36operates the valve means32bin response to the thermal load of the evaporator and controls the flow rate of refrigerant. The lower end of a spring32ddisposed within the valve chamber35and biasing the valve means32btoward the orifice32ais supported by a sealing member150that is inserted to an opening35aof the valve chamber and fixed to position via a crimping portion K1.

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