| 摘要 |
Valve particularly for use with an internal combustion engine, by opening and closing in response to the temp. of the medium, comprises a valve plate which can be displaced to or from a valve seat in accordance with the solid-liquid transformation volume changes of a fusible material (A) is in the control device. The plate has an elastomeric radially projecting seal ring on its outer edge which can slide on the walls of an orifice in the valve seat to form a sealed joint, being displaceable in one direction from a closed to a first open position by the action of control device against the pressure of an elastic element, e.g. a spring, and in the case where the fusible material (A) escapes from the control element, being displaceable from a closed to a second open position by the action of the elastic element alone. |
