Unit for supplying combustion air to the cylinders of an endothermic engine

摘要

Unit (1) for supplying combustion air to the cylinders of an endothermic engine is provided with a manifold (2) having an air inlet orifice (4) and a plurality of supply ducts (3); each supply duct (3) extends between a first opening (5) communicating with the manifold (2) and an outlet orifice (7), and has a second opening (6) arranged between the first opening (5) and the outlet orifice (7); the supply unit (1) being equipped with a bulkhead (10) that can move between the first opening (5) and the second opening (6) in order to close alternately the first opening (5) and the second opening (6).