Patent ID: 9014877
Filing Date: 2015-04-21
Classification: B64C,Y02T

Abstract:
1. An aircraft with aerofoils comprising a main wing and at least one control flap that is arranged so as to be adjustable relative to the main wing, and comprising at least one adjustment flap, with the aircraft comprising: an actuator for operating the at least one control flap, as well as a sensor device for acquiring a set position of the control flap, at least one arrangement of flow-influencing devices, which extends in at least one surface segment of the main wing, wherein the surface segment extends in a wingspan direction, and/or of at least one adjustment flap of each said aerofoil, for influencing a fluid that flows over the surface segment, and wherein one or more outlet openings are provided over portions of the surface segment for ingesting and/or blowing out the fluid, at least one arrangement of flow-state sensor devices for measuring a flow state on a respective surface segment, wherein the aircraft further comprises: a flight control device which on an input side is functionally connected to the sensor device for acquiring the set position of the control flap and to the flow-state sensor devices and the flight control device for transmitting actuating commands on an output side is functionally connected to the actuator and the flow-influencing devices, a flight-state sensor device for acquiring flight states of the aircraft, wherein the flight-state sensor device is functionally connected to the flight control device for transmitting the flight states, and a specifying device for generating desired commands, which correspond to the flight states of the aircraft, the specifying device being functionally connected to the flight control device for transmitting the commands as input signals of the flight control device, wherein the flight control device comprises a function for optimizing local lift coefficients on the aerofoil depending on the respective acquired flight state carries out a selection of the flow-influencing devices that are to be operated, wherein the flow-influencing device of the main wing or of the adjustment flap comprises: a pressure chamber, arranged in the main wing and/or in the adjustment flap, for receiving compressed air; an outlet chamber with the outlet openings arranged on the surface of the main wing and/or on the adjustment flap, one or several connecting lines for connecting the pressure chamber to the outlet chamber; and at least one valve device integrated in the connecting line, wherein the valve device functionally communicates with the flight control device, wherein the flight control device controls the valve device by current control signals in order to let compressed air present in the pressure chamber either not flow or flow at a corresponding speed through the outlet openings according to the actuating values of the then current control signals in order to influence the flow around the surface of the main wing or of the adjustment flap.