| 摘要 |
<p>In an exhaust manifold (EM), a plurality of branch pipes (2 to 5) is bent downward from a head flange (1) to form like an L-letter shape, where exhaust-gas upstream side end portions of the pipes are connected with an engine through the head flange (1) and exhaust-gas downstream side end portions thereof are connected with a pipe collecting part (6) which is provided with a sensor (10) for detecting a state of exhaust gas. The pipe collecting part (6) has a reduced diameter portion (6d) where a length of the pipe collecting part (6) in a longitudinal direction (LN) of the head flange (1) is set shorter than that of the pipe collecting part (6) in a thickness direction (LT) of the head flange (1). The sensor (10) is provided on the reduced diameter portion (6d).</p> |
