Patent ID: 6471134
Filing Date: 2002-10-29
Classification: F01P,G05D,Y10T

Abstract:
A thermostatic device having two regulating conditions and being capable of being received in a chamber having a first port defining a fluid inlet port, a second port defining a fluid outlet port, at least one third port, and a valve seat surrounding one of said first, second and third ports, said thermostatic device comprising:a casing in the form of a pipe having a first end adapted to be received in chamber and defining a first valve seat surrounding one of the first, second and third ports of the chamber, a thermostatic fluid-metering element disposed in said casing and having a moveable fluid-metering component that includes two valves and is movable in the chamber, wherein said valves cooperate with said first and second valve seats, respectively, so that when one of said valves moves away from its respective valve seat, the other of said valves moves towards its respective valve seat, wherein said moveable fluid-metering component is movable with respect to a part of said thermostatic fluid-metering element, which extends at least partially outside of the chamber; and a thermostatic threshold-setting element disposed in a part of said casing located outside of the chamber, said thermostatic threshold-setting element having a moveable part carrying a moveable threshold-setting component provided with a moveable stop that cooperates with the part of said thermostatic fluid-metering element that extends at least partially outside of the chamber, said thermostatic threshold-setting element having an electrical heating device for being electrically connected to an electrical power supply that can be selectively activated and deactivated so that, when said thermostatic threshold-setting element is not heated, the distance between the movable stop and the first valve seat is less than when said thermostatic threshold-setting element is heated.