Expansion valve
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United States of America Patent
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N/A
Issued Date -
Dec 13, 2007
app pub date -
Jun 6, 2007
filing date -
Jun 7, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
To improve the manufacturing efficiency of a body, and reduce the manufacturing cost of an expansion valve. A body accommodating a valve section is formed, using forming dies, such as die-casting dies, integrally with an inlet port for introducing refrigerant, an outlet port for delivering expanded refrigerant, a male thread, and has a power element connected thereto by the male thread. This eliminates a necessity of subjecting the body to fabrication, for forming the inlet port, the outlet port, a valve hole, a hole for receiving therein a valve element and set value-adjusting members, a hole for receiving therein a shaft which transmits an actuating force dependent on temperature sensed by the power element to the valve element, and further the male screw. Therefore, the manufacturing efficiency of the body is improved, and the manufacturing cost of the expansion valve can be reduced.
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