Input flange for connecting exhaust manifold`s curved conduit to cylinder head`s exhaust side, has massive part whose height varies in conduit median plane between maximum and minimal heights of conduit`s inner and outer sides, respectively

摘要

The flange (20) has a central orifice for receiving an end of a curved conduit (11) in a direction of flow of exhaust gas, and a base (21) surmounted around the central orifice around which a massive part (22) is provided. The massive part has height varying in a median plane of the conduit between a maximum height of an inner side of the conduit and a minimal height of an outer side of the conduit. Two stiffening ribs (23, 24) are positioned on both sides of a housing (25) in the flange.