Easy flaps to form a variable vortex of the engine induction system

摘要

The present invention allows the noise generated when the flow of air supplied from the outside through the air duct collides with the resistor to be eliminated, and at the same time, the mixing of the injected fuel with the injected fuel is made uniform. In an EGR flap installed to adjust the amount of intake air through the air duct on the intake manifold inlet side of the engine, a plurality of blade assemblies for controlling the amount of air in the air duct are in contact with each other. Are positioned opposite to each other, the blade is provided with a vacuum retainer which provides an acting force for rotation and is located outside the air duct, and the vacuum retainer is connected with a second professional solenoid providing a working vacuum pressure. The second professional solenoid has an ECU for transmitting a command. It is characterized in that the connection.