Air intake device for direct injection diesel engine, has vertical separation wall dividing intake duct into two parts, up to proximity of rod of valve, where parts have asymmetrical profile and different sections on entire length of parts

摘要

The device has a single intake duct (1) connecting a cylinder head of an internal combustion engine to an intake zone or chamber (2) in a cylinder (3) of the engine. The duct is tangentially opened in the intake zone, and is sealed by an intake valve (4). An internal vertical separation wall (6) divides the duct into two parts (1a, 1b), up to proximity of a rod (4a) of the valve. The parts of the duct have an asymmetrical profile, and different sections on the entire length of the parts.