Patent ID: 8127722

Claim:
A cooling circuit for a motor vehicle combustion engine, comprising a main loop comprising: a first exchanger that collects the heat from a first heat source, a first radiator and a pump which are connected in series using hoses through which a liquid coolant can flow, a temperature of the coolant being, under normal operating conditions, kept at a temperature lower than or equal to a predetermined threshold value, a first bypass of the main loop arranged in parallel with the first radiator, the first bypass comprising, in succession, in a direction in which the coolant flows, a second exchanger collecting heat from a second heat source and a second radiator, the second radiator and the second exchanger being connected in series by hoses through which the coolant can flow, a second exchanger coolant temperature of the coolant leaving the second exchanger being, under normal operating conditions, raised to a temperature higher than or equal to the predetermined threshold value.