| 摘要 |
PROBLEM TO BE SOLVED: To provide an intake air heater capable of unifying the temperature of the passed air at each part, and reducing the time to the complete combustion of an internal combustion engine even when a non-heating flow passage to suppress the air pressure loss is provided. SOLUTION: A heating flow passage 12 which is arranged in an intake passage I of an internal combustion engine and passes the heated air HA by a heat radiating body 14, and a non-heating flow passage 13 to pass the non-heated air CA which is not heated by the heat radiating body 14 are arranged. A regulating surface 110 to change the direction of the flow of the non-heated air CA is formed in the non-heating flow passage 13 so that the non-heated air CA can be brought into contact with the heated air HA. |
