Back to results
US 12,497,161 B2Granted
Airfoil with augmented lift
AssigneeAmonyx Aps
InventorAllan Molbech
Life of this patent
Estimating the term…
Abstract
An airfoil having a leading-edge and a trailing edge as well as a suction side and a pressure side is provided. The suction side including an injector slot towards the leading-edge. There may be at least one additional slot towards the trailing edge. The airfoil may be configured for an aircraft. A method of operating an aircraft using such airfoil is also provided.
Claims10
An airfoil configured for an aircraft, comprising:
- a leading edge;
- a trailing edge;
- a suction side having an injector slot towards the leading edge;
- at least one additional slot towards the trailing edge;
- a pressure side;
- a leading edge part with a leading edge chord line;
- a trailing edge part with a trailing chord line;
- an injector flap configured to operate on the suction side and to open, close, and/or regulate the opening of the injector slot;
- and
- a plurality of internal structures arranged in a span direction of the airfoil for supporting the injector flap, said internal structures having multiple airflow openings for ensuring airflow in the airfoil;
- wherein the leading edge part and the trailing edge part together form the airfoil depending on their relative position,
- wherein the injector flap is hinged by a hinge arrangement towards a trailing edge of the injector flap,
- wherein the leading edge part and the trailing edge part are configured and arranged relative to each other so as to form the at least one additional slot with an opening in the leading edge body of the airfoil, and
- wherein the trailing edge part is configured to open, close and/or regulate the opening of the at least one additional slot, by rotating such that the trailing edge is moved towards the pressure side, wherein the additional slot opening in the leading edge body opens for supplying additional airflow from the leading edge part to the trailing edge of the airfoil.
11 more elements
A method of operating an aircraft the method comprising:
- providing an airfoil having a leading edge, a trailing edge, a suction side having an injector slot towards the leading edge, at least one additional slot towards the trailing edge, the at least one additional slot having an opening in the leading edge body of the airfoil, a pressure side, a leading edge part, a trailing edge part, a plurality of internal structures arranged in a span direction of the airfoil for supporting the injector flap, said internal structures having multiple airflow openings for ensuring airflow in the airfoil, and an injector flap configured to operate on the suction side and to open, close, and/or regulate the opening of the injector slot, wherein the leading edge part and the trailing edge part together form the airfoil depending on their relative position, wherein the injector flap is hinged by a hinge arrangement towards a trailing edge of the injector flap, wherein the leading edge part and the trailing edge part are configured and arranged relative to each other so as to form the at least one additional slot, wherein the trailing edge part is configured to open, close, and/or regulate the opening of the at least one additional slot, by rotating such that the trailing edge is moved towards the pressure side, wherein the additional slot opening in the leading edge body opens to supply additional airflow from the leading edge part to the trailing edge of the airfoil;
- and
- generating slot flow to the respective injector slot and at least one additional slot.
Dependencies are inferred from the claim text.