Temperature sensing valve

摘要

A temperature sensing valve includes a casing having an internal fluid passage member formed therein, a permanent magnet mounted in the casing, a valve body which includes a magnetically soft, amorphous metal member supported in a thermally sensitive region of the casing for movement between a first and second position and being magnetically coupled to the permanent magnet so that flow through the fluid passage member can be interrupted in response to magnetic excitement by the permanent magnet of the valve body, and a spring for urging the valve body in a first direction to permit fluid flow through the fluid passage member wherein when the temperature of the second thermally sensitive region is below the Curie point of the second valve body, the valve body is excited by the permanent magnet to maintain the fluid passage member closed against the biasing force of the spring whereas when the temperature of the thermally sensitive region reaches the Curie point of the valve body, the valve body constitutes a paramagnetic body and is no longer excited by the permanent magnet so as to be displaced by the biasing force of the spring to the second position for flow of the fluid through the fluid passage member.