Intake device for an internal combustion engine having impulse charging

摘要

An intake head device for an internal combustion engine, which is suitable for impulse charging and/or residual exhaust gas purging, including a pressure accumulator ( 24 ) which may apply overpressure to the pressure passage via a pressure passage, so that this produces residual exhaust gas purging of the cylinder ( 16 ) when the inlet valve ( 18 ) is open and the impulse flap ( 21 ) is closed. The impulse charging is performed by a partial vacuum which is generated in the accumulator passage ( 22 ) by the air intake of the cylinder ( 16 ). The pressure accumulator arrangement of the invention has the advantage that the closing time of the flap ( 21 ) may be longer.