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Drag reduction systems having fractal geometry/geometrics

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B64C-021/00
  • F01D-005/14
  • B63B-001/34
  • B64C-021/10
  • F03D-001/06
출원번호 US-0247958 (2014-04-08)
등록번호 US-10001015 (2018-06-19)
발명자 / 주소
  • Shelman-Cohen, Alexander J.
출원인 / 주소
  • Shelman-Cohen, Alexander J.
대리인 / 주소
    McDermott Will & Emery LLP
인용정보 피인용 횟수 : 0  인용 특허 : 43

초록

Airfoil and hydrofoil systems include structures having a surface texture defined by fractal geometries. Raised portions or fractal bumps can be included on the surfaces, forming a surface texture. The surface textures can be defined by two-dimensional fractal shapes, partial two-dimensional fractal

대표청구항

1. A drag reduction system comprising: an airfoil or a hydrofoil with a body having a fluid-contact surface operative for movement within a first fluid, wherein the body has a longitudinal axis and, is asymmetrical in cross-section about the longitudinal axis; anda plurality of discrete fractal-base

이 특허에 인용된 특허 (43)

  1. Rist, Ulrich; Knoll, Andreas, Aerodynamic body, regulating flap or main wing or fin of an aircraft as well as a structural component with such an aerodynamic body.
  2. Ording,Andrew; Poertner,Joshua R., Aerodynamic surfaced bicycle wheel.
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  4. Werle Michael J. (W. Hartford CT) Presz ; Jr. Walter M. (Wilbraham MA) Paterson Robert W. (Simsbury CT), Airfoil trailing edge.
  5. Shih I-Fu (Los Alamitos CA) Chang David B. (Tustin CA) Moise Norton L. (Pacific Palisades CA), Analog optical processing for the construction of fractal objects.
  6. Harris B. Waylon (826 E. Harmont Dr. Phoenix AZ 85020), Apparatus and method for reducing drag on bodies moving through fluid.
  7. Litchfield, Lonnie, Apparatus for reducing drag on a vehicle.
  8. Loebert Gerhard (Baldham DEX), Apparatus for reducing turbulent drag.
  9. Grose Ronald D. (Omaha NE), Cascaded micro-groove aerodynamic drag reducer.
  10. McKeon, Beverley J., Control of aerodynamic forces by variable wetted surface morphology.
  11. Mangiarotty Rudolph A. (Seattle WA), Control of laminar flow in fluids by means of acoustic energy.
  12. Cohen,Nathan, Cylindrical conformable antenna on a planar substrate.
  13. Glen P. Barker, Dimpled marine seismic fairing.
  14. Yee Norman D. (955 14th Ave. Honolulu HI 96816), Drag reducing surface depressions.
  15. Marentic Francis J. (St. Paul MN) Morris Terry L. (St. Paul MN), Drag reduction article.
  16. Drews Hilbert F. P. (5640 S. 76th St. Greendale WI 53129), Driven craft having surface means for increasing propulsion efficiencies.
  17. Rogers,Ernest O.; Imber,Robin D.; Abramson,Jane S.; Donnelly,Martin J., Dual jet emerging lift augmentation system for airfoils and hydrofoils.
  18. Kloker, Markus; Messing, Ralf, Flow surface for a three-dimensional boundary-layer flow, especially on a swept wing, a swept tail plane or a rotor.
  19. Nathan Cohen, Fractal antennas and fractal resonators.
  20. Ogden Joan M. (Somerset County NJ), Fractal generation, as for video graphic displays.
  21. Blood Charles L. (No. 1 Farview Ave. Atlantic Highlands NJ 07716), Friction reducing surface and devices employing such surfaces.
  22. Krastel Norman W., Gas or fluid de-organizers for moving objects.
  23. Kobayashi Masashi (Matsudo JPX), Golf ball.
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  28. Aoyama Steven (Glendale Heights IL), Golf ball with uniform land configuration.
  29. Occhipinti Anthony C. (1353 Lake Ave. Apt. 5 Metairie LA 70005), Hydrofoils and airfoils.
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  32. Munro,Alexander S.; Mazurkiewicz,Andrew J., Method and apparatus for reducing drag and noise for a vehicle.
  33. Keefe Laurence R., Method and apparatus for reducing the drag of flows over surfaces.
  34. Blackwelder Ron F. (30531 Rue Langlois Rancho Palos Verdes CA 90274) Gad-el-Hak Mohamed (15275 Hunting Ridge Trail Granger IN 46530), Method and apparatus for reducing turbulent skin friction.
  35. Whitmore, Stephen A.; Saltzman, Edwin J.; Moes, Timothy R.; Iliff, Kenneth W., Method for reducing the drag of blunt-based vehicles by adaptively increasing forebody roughness.
  36. Kiknadze,Gennady Iraklievich; Gachechiladze,Ivan Alexandrovich, Method of conversion of continuous medium flow energy and device for conversion of continuous medium flow energy.
  37. Dionnet Vincent (Montrouge FRX) Heliodore Frederic (Paris FRX) Le Mehaute Alain R. P. (Gif Sur Yvette FRX) Andre Jean Claude (Nancy FRX), Method of manufacturing a fractal object by using steriolithography and a fractal object obtained by performing such a m.
  38. Lang, Amy Warncke, Passive micro-roughness array for drag modification.
  39. Blood Charles L. (No. 1 Farview Ave. Atlantic Highlands NJ 07716), Projectile having a matrix of cavities on its surface.
  40. Bonnet, Laurent, Rotor blade for a wind turbine having aerodynamic feature elements.
  41. Hwang Danny P., Skin friction reduction by micro-blowing technique.
  42. Brennan, Anthony B; Baney, Ronald H.; Carman, Michelle L.; Estes, Thomas G.; Feinberg, Adam W.; Wilson, Leslie H.; Schumacher, James F., Surface topographies for non-toxic bioadhesion control.
  43. Brennan,Anthony B.; Baney,Ronald H.; Carman,Michelle L.; Estes,Thomas G.; Feinberg,Adam W.; Wilson,Leslie H.; Schumacher,James F., Surface topography for non-toxic bioadhesion control.
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