Reinforced airfoil shaped body
AssigneeBladena ApS
InventorFind Mølholt Jensen
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Abstract
The present invention relates to an airfoil shaped body with a leading edge and a trailing edge extending along the longitudinal extension of the body and defining a profile chord, the airfoil shaped body comprising an airfoil shaped facing that forms the outer surface of the airfoil shaped body and surrounds an internal volume of the body, a distance member that is connected to the facing inside the body and extends from the facing and into the internal volume of the body, and at least one reinforcing member that operates in tension for reinforcing the facing against inward deflections and that is connected to the facing inside the internal volume of the body at the same side of the profile chord as the connection of the distance member to the facing and to the distance member at a distance from the facing.
Claims19
An airfoil shaped body with a leading edge and a trailing edge extending along a longitudinal direction of the airfoil shaped body and defining a profile chord, the airfoil shaped body having a suction side and a pressure side, both of which extend between the leading edge and the trailing edge, the airfoil shaped body comprising:
- an airfoil shaped facing that forms an outer surface of the airfoil shaped body and surrounds an internal volume of the airfoil shaped body,
- at least one reinforcing member that is connected to the airfoil shaped facing with a first connection inside the internal volume only adjacent a first side of the airfoil shaped body, the first side being one of the suction side and the pressure side, and extends transversal to the longitudinal direction of the airfoil shaped body;
- and
- a distance member that is in contact with airfoil shaped facing, at a substantially flat part of the airfoil shaped facing inside the internal volume of the airfoil shaped body at a same side of the profile chord as the first connection, and at a lateral distance from the first connection and extends from the airfoil shaped facing and into the internal volume of the body, wherein
- the at least one reinforcing member is in contact with the distance member at a second connection at a distance from the airfoil shaped facing inside the internal volume of and only adjacent the first side of the airfoil shaped body and operates in tension for reinforcing the airfoil shaped facing against inward deflections, and
- the at least one reinforcing member is further connected to the airfoil shaped facing with a third connection only adjacent the first side of the airfoil shaped body and at a side of the distance member opposite the first connection and on a same side of the profile chord as the connection of the distance member to the airfoil shaped facing.
A method for manufacturing an airfoil shaped body, the airfoil shaped body having a leading edge and a trailing edge extending along a longitudinal direction of the airfoil shaped body and defining a profile chord, the method comprising:
- providing at least a part of an airfoil shaped facing of the airfoil shaped body,
- providing a distance member,
- contacting the distance member to an internal surface of the airfoil shaped facing,
- providing at least one reinforcing member,
- connecting the at least one reinforcing member to a first position at the internal surface of the airfoil shaped facing at a distance from the distance member and at the same side of the profile chord as the contact of the distance member with the airfoil shaped facing and only adjacent a first side of the airfoil shaped body, the first side being one of a suction side and a pressure side,
- contacting the at least one reinforcing member to the distance member at a distance from the airfoil shaped facing only adjacent the first side of the airfoil shaped body, and
- connecting the at least one reinforcing member to a second position at the internal surface of the airfoil shaped facing at a distance from the distance member and at a side of the distance member opposite from the first position and at a same side of the profile chord as the contact of the distance member with the airfoil shaped facing and only adjacent the first side of the airfoil shaped body.
Dependencies are inferred from the claim text.