| 摘要 |
The present invention secures smooth and stable workability of an engine by enabling a movement disturbance phenomenon of a valve flap not to be generated by freezing water while air mixed with EGR gas passes through a throttle valve in an engine applied with EGR; and moreover, prevents filling efficiency of the engine from unnecessarily declining by preventing the air passing through the throttle valve from being overheated. According to the present invention, a temperature control device for an engine comprises: an air heater provided to heat air flowing into a throttle valve; and a valve means blocking a flow of engine cooling water passing through the air heater. |
