| 摘要 |
PURPOSE: A device for warming up engine oil with exhaust heat is provided to improve fuel efficiency by reducing a warm-up time as cooling water heated by exhaust heat warms up the engine oil. CONSTITUTION: A device for warming up engine oil with exhaust heat comprises a first heat exchanger(110) and a second heat exchanger(120). The first heat exchanger is supplied with cooling water, and discharge cooling water heated by exhaust heat. The first heat exchanger heats the cooling water in a cold coolant line(111) by the exhaust heat discharged from an engine block. The first heat exchanger discharges the cooling water heated by a hot coolant line(112). The second heat exchanger warms up the engine oil by the cooling water heated in the first heat exchanger. |
