Cylinder head for a multi-cylinder in-line combustion engine having secodary air supply system

摘要

The invention relates to a cylinder head (10) for a multi-cylinder in-line combustion engine comprising a longitudinal channel (13) provided with a secondary air supply by a valve from which lead stub lines (14) to each cylinder's exhaust channel, these flow into the cylinder head flange mounted exhaust gas manifolds (12A,12B), whereby at least two separately carried, at least as regards the gas flow, exhaust gas manifolds (12A,12B) are provided, in each respectively the exhaust channel is connected to at least two cylinders. The invention lies in the dividing of the longitudinal channel (13) into a number of sub-channels (13A,13B), the number being the same as the number of exhaust gas manifolds, whereby the respective gas flows are arranged from the valve to the sub-channels such that each sub-channel provides via the exhaust gas manifolds (12A,12B) the interconnected cylinder exhaust channels with secondary air. IMAGE