| 摘要 |
In a valve-controlled internal combustion engine having a cylinderhead with an exhaust gas passage extending from a combustion chamber and a secondary air duct for supplying secondary air to the exhaust gas passage downstream of an exhaust valve opening, the exhaust gas passage includes a projection just downstream of the exhaust valve opening, which projection extends in the direction of flow of the exhaust gases and forms, with the exhaust passage wall, a pocket which is open towards the exhaust passage and into which the secondary air passage opens for supplying secondary air to the exhaust gas.
|
