| 摘要 |
PURPOSE:To make it possible to complete warming in a short time by closing a control switch of an electric motor driving circuit for a radiator fan when the temperature of an engine body is lower than a prescribed temperature. CONSTITUTION:While a temperature of the body of an engine 1 that an engine body temperature detector 18 detects is lower than a prescribed temperature set in advance at a warming time after start of the engine, a control switch 15 is made to be conducted to drive a radiator fan 12. The driving power of the radiator fan 12 acts, therefore, as a load on the engine 1 through a generator 2. Accordingly, the engine 1 comes to be operated in a light load condition, so that it is possible to shorten a warming time. |
