THERMOSTATIC SAFETY VALVE Russian patent published in 2013 - IPC G05D23/02 

FIELD: physics.

SUBSTANCE: thermostatic safety valve has a housing (12) having an inlet opening (14) and an outlet opening (16), a passage opening (17) which connects the inlet opening (14) and the outlet opening (16) for allowing mass flow. There is valve seat (18) in the passage opening (17), which can be closed by a valve element (19). At least one actuating element (31) acts between the valve element (19) or valve seat (18) and the housing (12), the actuating element (31) being configured to self-lock in two defined end positions (32, 37). In one end position (32), the valve element (19) or valve seat (18) is fixed an open position (34) with respect to the valve seat (18) or valve element (19), and in the other end position (37), the valve element (19) or valve seat (18) is fixed in a closed position (36) with respect to the valve seat (18) or valve element (19). The valve element (19) or the valve seat (18) is in contact with an actuating member (28) which, depending on temperature of the mass flow, generates at least one switching movement of the valve element (19) or valve seat (18) and moves the valve element (19) into the first end position (32) or the second end position (37).

EFFECT: design of a thermostatic valve for controlling mass flow, which is in form of a safety valve and indicates faults, for example, exceeding a given operating temperature.

21 cl, 14 dwg