Patent ID: 7634978

Claim:
Device for controlling the temperature of fluids circulating in a heat engine vehicle, of the type comprising a circuit in which a heat-transfer liquid circulates for cooling the heat engine, wherein the device is adapted to control the temperature of first and second fluids formed by lubricating oil of the heat engine of the vehicle and by recirculated exhaust gases, respectively, wherein said device comprises: a first heat-transfer liquid/lubricating oil exchanger, a second heat-transfer liquid/recirculated exhaust gases exchanger, the first and second exchangers being connected to a same heat-transfer liquid circuit, wherein the heat-transfer liquid circuit comprises derivation means from the heat-transfer liquid/oil exchanger, and wherein the heat-transfer liquid circuit comprises derivation means from the engine, wherein said derivation means from the engine bypasses a portion of the heat-transfer liquid circuit including the engine, and wherein the bypassed portion of the heat-transfer liquid circuit also includes the heat-transfer liquid/recirculated exhaust gases exchanger.