Patent ID: 8403264

Claim:
An air intake valve for an aircraft, comprising: an opening region for letting ambient air through into a fuselage inner region of the aircraft, a flap for opening and closing the opening region, wherein the opening region and the flap each have a shape which forms air vortices on edges of the opening region when ambient air flows through the air intake valve, the flap being attached upstream of the aircraft fuselage to a first transverse side of a side frame which is disposed transversely to the fuselage longitudinal axis, which flap is mounted rotatably in the region of the attachment site, an ancillary flap being attached to a second transverse side, the rotatably mounted edge of said ancillary flap being arranged on the longitudinal side region, directed towards the opening region, of the transverse side, such that it is possible for the surface of the ancillary flap to be pivoted in the direction of the fuselage outer region as far as outside the opening region, by which, in the pivoted-out position of the ancillary flap, ambient air is additionally guided into the opening region, and recesses around an outer edge of the flap are adapted to the cross section of the ancillary flap in the unpivoted position of the ancillary flap.