Gas distribution manifold in the cylinder head of an engine, set comprising a distribution manifold and an engine cylinder head

An assembly of a cylinder head of a heat engine of a motor vehicle and of a gas distribution manifold in the cylinder head, the assembly comprising:

• a tubular injection duct for injecting a flow of recirculated exhaust gases from the engine into the flow of intake gas formed by two complementary parts,
• the injection duct comprising a first part defined by the manifold and a second part defined by the cylinder head, the first or the second part of the injection duct comprising an open face configured to be closed by said other complementary part so as to form the tubular injection duct,
• wherein the manifold comprises a manifold housing, the manifold housing having a through orifice that passes the recirculated exhaust gases that merge and flow into the cylinder head,
• wherein the cylinder head comprises an injection channel that opens into said through orifice, and
• wherein the injection channel is perpendicular to the tubular injection duct.