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Axial flow fan 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F04D-029/32
  • F04D-029/66
출원번호 US-0378839 (1982-05-17)
발명자 / 주소
  • Thode Herbert W. (Oradell NJ)
출원인 / 주소
  • General Dynamics Corp. (Avenel NJ 02)
인용정보 피인용 횟수 : 37  인용 특허 : 3

초록

An axial flow fan has a plurality of impeller blades spaced around a hub assembly. The leading edge of each blade overlaps completely the trailing edge of the preceding blade, and the angular spacing between the radial center lines of the blades is unequal, preferably varying in a sinusoidal pattern

대표청구항

An axial flow fan comprising: a hub assembly rotatable about an axis; a plurality of impeller blades mounted on said hub assembly and spaced circumferentially about said axis, wherein said blades are completely overlapped, viewed in the axial direction, with adjacent blades of said fan, and wherein

이 특허에 인용된 특허 (3)

  1. Macauley William T. (West Bloomfield MI), Contoured sheet metal airfoil fans.
  2. Parkes George Robertson (Streetly EN), Fan assembly with blades secured between two hub members.
  3. Segawa Yorihide (Hitachi JPX) Fujisawa Fumio (Mito JPX) Shiohata Koki (Hitachi JPX), Wheel or rotor with a plurality of blades.

이 특허를 인용한 특허 (37)

  1. Manzi ; Jr. Robert J. ; Mathews Douglas C. ; Slomski Soter P. ; van Achterberg Johan, Acoustically improved gas turbine blade array.
  2. Usab, Jr.,William J.; Bilanin,Alan J., Apparatus and method for enhancing lift produced by an airfoil.
  3. Bradbury Phillip James ; Nguyen Phep Xuan ; Jenkins ; Jr. Chalmers R., Axial flow fan having a compact circuit board and impeller blade arrangement.
  4. Bradbury, Phillip James; Nguyen, Phep Xuan; Jenkins, Chalmers R.; Frankel, Scott H., Axial flow fan having counter-rotating dual impeller blade arrangement.
  5. Hall, Craig R.; Shoemaker, Nathan K.; Adamski, Stephen A., Blower assembly and method.
  6. Duke, Connor R.; Dybenko, Jesse T., Centrifugal blower with asymmetric blade spacing.
  7. Duke, Connor R.; Dybenko, Jesse T., Centrifugal blower with asymmetric blade spacing.
  8. Duke, Connor R.; Dybenko, Jesse T., Centrifugal blower with asymmetric blade spacing.
  9. Feldhausen Joseph E. ; Radtke David E., Die cast housing for welding machine generator.
  10. Parks, Robert, Ducted spinner for engine cooling.
  11. Pennington, Donald R.; Hext, III, Richard G., Fan assembly and method.
  12. Hext, III, Richard G.; Pennington, Donald R.; Shelby, Richard R.; Zeng, Ling-Zhong, Fan blade.
  13. Zeng, Ling-Zhong, Fan blade.
  14. Savage, John R., Fan shroud supports which increase resonant frequency.
  15. Ebihara Yoshio,JPX, Fluid supply device having irregular vane grooves.
  16. Yaeger Karl J. (Coventry CT) Duke Douglas E. (Ellington CT) Sunamoto James A. (Glastonbury CT) Greene ; Jr. William Henry (South Windsor CT), Flutter resistant blades, vanes and arrays thereof for a turbomachine.
  17. Kesel Bruno (Bhl DEX) Zink Gerhard (Bhl DEX) Winter Karin (Gaimersheim DEX), Impeller.
  18. Bradbury,Phillip James; Nguyen,Phep Xuan; Jenkins, Jr.,Chalmers R., Impeller blade.
  19. Bradbury, Phillip James; Nguyen, Phep Xuan; Jenkins, Chalmers R.; Frankel, Scott H., Impeller blade for axial flow fan having counter-rotating impellers.
  20. Otsuka, Shuichi, Impeller for axial flow type blower.
  21. Parks,Robert, Inbound transition control for a tail-sitting vertical take off and landing aircraft.
  22. Nadeau, Sylvain; Kurbatskii, Konstantin, Low tone axial fan structure.
  23. Bradbury, Phillip James; Nguyen, Phep Xuan; Jenkins, Jr., Chalmers R., Method of designing an Impeller blade.
  24. Henning, Thomas Richard; Mickol, John Douglas; Mollmann, Daniel Edward; Schneider, Michael Harvey, Methods and apparatus for assembling rotatable machines.
  25. Henning,Thomas Richard; Mickol,John D.; Mollmann,Daniel E.; Schneider,Michael H.; Breeze Stringfellow,Andrew; Horejs,Timothy J., Methods and apparatus for assembling rotatable machines.
  26. Henning,Thomas Richard; Mickol,John Douglas; Mollmann,Daniel Edward, Methods and apparatus for assembling rotatable machines.
  27. Henning,Thomas Richard; Mickol,John Douglas; Mollmann,Daniel Edward; Schneider,Michael Harvey; Breeze Stringfellow,Andrew; Farson,Max, Methods and apparatus for assembling rotatable machines.
  28. David W. Crall ; Steven R. Manwaring, Periodic stator airfoils.
  29. Wilhelm Hans-Dieter,DEX ; Schmidt Christoph,DEX ; Werner Thomas,DEX, Peripheral pump.
  30. Michael E. Slipper ; Yu-Tai Lee, Quiet and efficient high-pressure fan assembly.
  31. Delvaux, John McConnell, Rotary machine having grooves for control of fluid dynamics.
  32. Delvaux, John McConnell; Potter, Brian Denver, Rotary machine having non-uniform blade and vane spacing.
  33. Sawalski, Michael M., Soft-surface remediation device and method of using same.
  34. Parks,Robert, System and method for controlling a roll rate of a torsionally-disconnected freewing aircraft.
  35. Parks,Robert; Led��,Jean Charles; Drela,Mark, System and method for controlling engine RPM of a ducted fan aircraft.
  36. Tolgos Sokrates,DEX, Tandem turbine-blade cascade.
  37. Parks, Robert; Ledé, Jean-Charles, Vibration isolation engine mount system and method for ducted fans.
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