| 摘要 |
<p>PURPOSE: To introduce properly cool air after the completion of warming-up in an engine wherein a warming-up time is shortened by taking in air near an exhaust manifold. CONSTITUTION: A cool air path 12 opened to the atmosphere and a warming-up path 13 opened to the proximity of an exhaust manifold 3 of an engine 1 are provided in the upstream of an air cleaner 5 in an intake path. In an intake device of the engine provided with a change-over valve 8 for changing over these paths for the air cleaner 5, a temperature sensing section for the changing- over operation of the change-over valve 8 consists of an inside air temperature sensing part 26 for sensing intake temperature and an outside air temperature sensing part 27 for sensing outside air temperature. The engine 1 can supply air of temperature adapted to such condition to controllably sensing both temperatures of the inside air and outside air.</p> |
