Abstract: 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.

Abstract: 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.

Abstract: In a fuel injection arrangement for a multi-cylinder internal combustion engine including an engine block with a cylinder head defining combustion chambers and a cylinder head cover wherein the cylinder head has cavities receiving fuel injectors which extend downwardly into the combustion chamber for injecting fuel and upwardly into recesses formed in the side wall of the cylinder head, a fuel distribution rail extends over, and is connected to, the fuel injectors, and the cylinder head cover has an extension projecting sidewardly over the fuel injectors and the fuel distribution rail so as to form a protective shield.