Patent ID: 8721406
Filing Date: 2014-05-13
Classification: B64D,Y02T

Abstract:
1. An air duct for supplying ambient air in an aircraft, comprising: an air inlet, a flow duct portion extending downstream of the air inlet, a feed device that is devised to feed ambient air through the air inlet and the flow duct portion, and a flow control flap comprising a first surface portion extending from a first terminal end to a junction point and a second surface portion extending from a second terminal end to the junction point, the flow control flap movable to at least first, second, and third positions via rotation about a pivot axis, with the pivot axis located between the first and second surface portions such that the pivot axis is positioned between a first plane defined through the first and second terminal ends and a second plane parallel to the first plane and defined through the junction point, wherein in the first position, the flow control flap closes the air inlet; in the second position, the flow control flap releases a first flow cross section of the air inlets; and in the third position, the flow control flap releases a second flow cross section that is larger than the first flow cross section, wherein the flow control flap is so designed and disposed that