Patent ID: 8534402
Filing Date: 2013-09-17
Classification: B60K

Abstract:
1. A motor-vehicle, comprising: a main cooling system, including an engine cooling circuit passed through by a liquid having a relatively high temperature, and including a first front radiator for cooling the liquid coming from the engine, arranged at the front part of the motor-vehicle, and first valve means for enabling the passage of the liquid through said first front radiator only when the temperature of the liquid exceeds a first threshold value, said main cooling circuit comprising one of more auxiliary radiators, for cooling the liquids of the main circuit, each of said auxiliary radiators of the main circuit interposed in a main line of said main cooling circuit, parallel to the first front radiator, said first valve means enabling the passage of the liquid of the main circuit through said first front radiator only when the temperature of the liquid of the main circuit exceeds a third threshold value exceeding said first threshold value, an auxiliary cooling system, including an auxiliary cooling circuit independent from the engine cooling circuit and entirely outside the engine, said auxiliary cooling circuit being passed through by a liquid having a relatively low temperature and including one or more heat exchangers, for cooling one or more auxiliary systems of the motor-vehicle, said auxiliary circuit further including a second front radiator also arranged at the front part of the motor-vehicle, for cooling the liquid of the auxiliary circuit, said auxiliary cooling circuit comprising one or more auxiliary radiators, for cooling the liquid of the auxiliary circuit, each of said auxiliary radiators comprising a body component of an exterior structure of the motor-vehicle, each of said auxiliary radiators interposed in a main line of said auxiliary cooling circuit, parallel to the abovementioned second front radiator of the auxiliary circuit, and said auxiliary circuit comprising second valve means that enable the passage of the liquid of the auxiliary circuit through said second front radiator only when the temperature of the liquid of the auxiliary circuit exceeds a second threshold value.