Air inlet device for carrying air to engine has opening for inhibiting noise emitted from air inlet opening, noise isolation wall inhibiting emission of noise passing through transmissive element

摘要

The device (1) has an air inlet opening (30) that opens outwards, an air inlet path suitable for connecting the opening to an engine combustion chamber, an opening for inhibiting noise emitted from the air inlet opening, a transmissive element (8) for closing the opening and a noise isolation wall attached outside the transmissive element to inhibit the emission of transmission noise passing through the element.