초록 ▼

A first air dam (60) is disposed chordwise within the rear spar cavity (34) of an airplane wing (10) to block the spanwise flow of air therethrough, thereby reducing the volume of air entering the spar cavity (34) through openings located in higher pressure regions of the wing and exiting through op

A first air dam (60) is disposed chordwise within the rear spar cavity (34) of an airplane wing (10) to block the spanwise flow of air therethrough, thereby reducing the volume of air entering the spar cavity (34) through openings located in higher pressure regions of the wing and exiting through openings located at the lower pressure regions of the wing. The reduction of air flowing into and out of the rear spar cavity (34) results in a decrease in the loss of momentum in the local airflow, thereby achieving a corresponding decrease of the drag on wing (10). A second air dam (102) is positioned between the opening (101) existing between the wing rear spar cavity (34) and a flap track fairing (18c) that depends downwardly from wing (10) to block the flow of air between the fairing and the rear spar cavity, thereby also reducing the drag on the wing.

대표청구항 ▼

Air dam means disposed within the interior of the trailing edge portion of a wing, the wing including a fixed wing structure and movable rear flap extending rearwardly from the fixed wing structure, the fixed wing structure and the rear flap cooperatively defining an interior wing rear cavity extend

Air dam means disposed within the interior of the trailing edge portion of a wing, the wing including a fixed wing structure and movable rear flap extending rearwardly from the fixed wing structure, the fixed wing structure and the rear flap cooperatively defining an interior wing rear cavity extending spanwise along the wing, said air dam means comprising: a first dam in the form of a wall structure having a generally planar shape closely corresponding to the chordwise profile of the interior wing rear cavity, said wall structure stationarily attached to the fixed wing structure in a generally upright, planar position to extend generally transversely chordwise across the interior wing cavity formed by the fixed wing structure and the wing flap to define a rearward marginal edge portion contoured to generally correspond to the adjacent profile of the rear flap; sealing means mounted on said wall structure along said rearward marginal edge portion to seal against the rear flap; and, said wall structure and said sealing means cooperating to block substantially all air from flowing spanwise past air dam means between higher and lower relative pressure regions of the interior wing cavity.