| 摘要 |
The device comprises a chamber (3) having at least three ports (4, 5, 6) two of which can be closed off by valves (9, 10) carried by a main thermostatic element (7) housed partially in the chamber, one valve moving away from its seat when the other moves towards its own seat. A pipe (1) entering the chamber (3) via one of the two seats contains a thermostatic threshold-setting element (17) carrying a moveable compensator (21) provided with a moveable stop (16) for the main thermostatic element (7); the thermostatic setting element (17) has electrical heating means which can be connected to an electrical power supply that can be selectively activated and deactivated in order, when deactivated, to decrease the distance between the stop (16) and the seat (14) in the pipe and thus the temperature for which this seat is released. The device can be used in the cooling circuits of internal combustion engines.
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