Patent ID: 6505580
Filing Date: 2003-01-14
Classification: F01P,G05D

Abstract:
A thermostatic device comprising:a housing having a fluid inlet, a fluid outlet, and a valve seat at said fluid outlet a shutter for opening and closing said valve seat; a sensor for detecting at least one engine parameter and for generating at least one detection signal based on the at least one detected engine parameter; a controller including a computer for receiving the at least one detection signal generated by said sensor and for generating an operating signal based on the at least one detection signal; a metering actuator fixed to said housing and including: an expanding-material thermostatic element including a heating device; a connector for connecting said controller to said heating device such that said heating device is operated based on the operating signal received from said controller via said connector; and an output stem movably connected to said expanding-material thermostatic element and operable to move in translation, said output stem being connected to said shutter so as to selectively move said shutter in translation in a closing direction to close said valve seat and in an opening direction to open said valve seat based on the operating signal; and a safety thermostatic element arranged so as to be at least partially submerged in a stream of fluid flowing through said housing, and being connected to said shutter and operable to selectively move said shutter when said shutter has not been moved by said metering actuator and when a temperature of the fluid reaches a predetermined temperature.