Expansion valve
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United States of America Patent
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-
Sep 2, 2003
Grant Date -
Apr 10, 2003
app pub date -
Oct 3, 2002
filing date -
Oct 10, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The object of the present Invention is to provide an expansion valve including a pressure sensor which enables reduction of parts cost. A pressure sensor is screwed into an opening of a body block, which communicates with a space accommodating a valve element and a compression coil spring for urging the valve element toward a valve seat. A set value for an expansion valve is adjusted by changing the amount of screwing of the pressure sensor to thereby change the load of the compression coil spring. An adjusting screw for adjusting the set value for the expansion valve can be dispensed with, which makes it possible to reduce the manufacturing costs of the expansion valve.
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