| 摘要 |
In a cooling system for a combustion engine(10)which is cooled with liquid coolant and is arranged in a circuit having a coolant cooler,(12) to which circuit there is connected by means of a change-over valve (23 or 24 )< at least one heat exchanger (20 or 21 )of an additional device,such as vehicle heater or oil cooler, provision is made for a thermostatic working element that is biassed by a restoring spring (46) and acted upon by the coolant and provided with an electrical heating device (47) to act as switching element for changing over the valve element, wherein the housing 41 the thermostatic working element contains an expandable wax material which is rated for a switching temperature that is higher than a maximum operating temperature of the coolant flowing to the thermostatic working element.
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