Patent ID: 7637462

Claim:
A wing with at least one airfoil comprising: a span, a chord, an upper surface, a lower surface, a leading edge, a trailing edge and a wing tip with a side face; said span longer than said chord at said wing tip and said wing curvilinearly traveling at an angle to said span; a volume formed by an enclosure of said upper surface of said airfoil, said lower surface of said airfoil on said leading edge and said trailing edge of said airfoil, with said wing tip forming a span-wise closing of said volume; an inlet to at least one duct, located on said lower surface of said airfoil, at a chord-wise distance less than one tenth of the chord length of said airfoil from said leading edge; said duct positioned within said volume lengthwise and formed as a space curve; an outlet to said duct opening flush with the outer side of said side face of said wing tip; said outlet to said duct located at a chord-wise distance more than one tenth of the chord length of said airfoil from said leading edge; said outer side of said side face of said wing tip being a normal plane to said space curve; said inlet to said duct, located on said lower surface of said airfoil, allowing the air at high pressure near said inlet to enter said duct, travel through said duct and to exit from said outlet to said duct opening flush with the outer side of said side face of said wing tip; and said duct is dielectric and is lined with triboelectric material or with at least one high-voltage-supplied electrode, with said triboelectric material or said high-voltage-supplied electrode to produce at least one static-charged wing tip side face jet to effect a reduction in the vortex produced by said wing tip by momentarily decelerating the air near said wing tip to delay vortex rollup and to early diffuse the core of said vortex by promoting interlayer movement of said vortex due to static charge difference.