| 摘要 |
A wax filled metal capsule housing (4) is coupled to a piston (20) through a flexible diaphragm (14) and a rubber plug (16). A spring (38) normally urges the piston (20), diaphragm (14), plug (16) and wax (12) to a quiescent position. A copper wire mesh (40) comprising flattened wires is distributed throughout the cavity (10) of the housing (4) and soldered or brazed to the housing (4) at a location (42) distal the diaphragm (14) to permit the diaphragm (14) and mesh (40) to flex. The wire mesh (40) distributes heat input from the housing (4) substantially uniformly and instantly throughout the wax (12) so that the wax (12) exhibits a relatively rapid expansion response to the heat input for operating a valve device coupled thereto.
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