| 摘要 |
Auxiliary cooling circuit comprising at least two primary heat exchangers (8,9,10), in which heat is transferred from various primary fluids to a secondary fluid, and a secondary heat exchanger (11) in which heat is transferred from the secondary fluid to the atmosphere. The thermal powers received by the various primary fluids (engine oil, supercharging air, air-conditioning fluid) vary according to the operating conditions of the vehicle, and the maximum value of their sum, which defines the size of the secondary exchanger, is lower than the sum of their maximum values. The circuit according to the invention can be connected or not to the main cooling circuit (2-6) of the engine (1) of the vehicle. <IMAGE>
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