Intake pipe arrangement for an internal combustion engine having individual arc-shaped cylinder intake pipes

Claim 1

An intake pipe arrangement for an internal combustion engine having a cylinder head comprising a plurality of individual arc-shaped cylinder intake pipes communicating with corresponding inlet channels in the cylinder head, each of the intake pipes having an arc-shaped portion with an enlarged inner wall region facing the cylinder head, a corresponding plurality of fuel-supplying injection valves having injection end regions projecting toward recesses in the inlet channels in the cylinder head to supply fuel thereto, a plurality of recesses in the enlarged inner wall regions of the arc-shaped intake pipes coaxial to the cylinder head recesses in which the opposite ends of the fuel-injection valves are received, and an intermediate flange having through-bores axially aligned with the inlet channel recesses to receive the injection end regions of the injection valves adjacent to the cylinder head after insertion of the injection valves into the recesses on the cylinder head-side ends of the intake pipes, the intermediate flange, the plurality of intake pipes and the plurality of fuel-injection valves forming a subassembly mountable as a unit on the cylinder head of an internal combustion engine.