Cooling system for supercharged internal combustion engine of automobile, has valve authorizing flow of fluid from high or low temperature circuit into cooling branch when flow is established or not established in exchanger, respectively

摘要

The system has a branch (51) connecting an inlet branch (22) of an air-liquid exchanger of a high temperature circuit (2) and an inlet branch (36) of a turbocharger (4) of a low temperature circuit (3). Another branch (52) connects an outlet branch (37) of the turbocharger and an outlet branch (23) of the exchanger. A check valve or pilot valve (6) authorizes, flow of fluid e.g. water, into a cooling branch of the turbocharger, from the high temperature circuit when the flow is established in the exchanger or from the low temperature circuit when the flow is not established in the exchanger.