| 摘要 |
In an internal combustion engine, an exhaust pipe (13) is connected to an exhaust exit opening (12) of an exhaust manifold integrated type cylinder head (3), and a sensor (15) having a detecting portion (15a), which may be broken by the adhesion of a moisture, is arranged in the exhaust entrance of the exhaust pipe (13). The exhaust ports (9a and 9b) of a cylinder (#2) positioned at the center are so formed that the detecting portion (15a) of the sensor (15) may not be contained in the extending cylindrical planes (Ya and Yb) of openings (Xa and Xb) into the exhaust gang portion (11) of the exhaust ports (9a and 9b) of the cylinder (#2). |
