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Detuned fan blade apparatus and method

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F01D-005/10
출원번호 US-0058077 (1998-04-08)
발명자 / 주소
  • Brafford Perry W.
  • Gebre-Giorgis Yoseph
  • Murthy Durbha V.
출원인 / 주소
  • AlliedSignal Inc.
대리인 / 주소
    Desmond, Esq.
인용정보 피인용 횟수 : 30  인용 특허 : 9

초록

A propulsion engine fan incorporates two sets of blades with recessed portions formed along the surface of each blade. One set of blades has a higher resonant frequency than the other set of blades. In an illustrative embodiment of the invention, first and second blade groups each comprise an airfoi

대표청구항

[ What is claimed is:] [1.] In a gas turbine engine having a rotating component with a plurality of blades extending therefrom, said component comprising:a first group of blades, each of said blades in said first group of blades having a first resonant frequency;a second group of blades, each of sai

이 특허에 인용된 특허 (9)

  1. Ellis ; Delmar H., Composite reinforcement of metallic airfoils.
  2. 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.
  3. Smith M. Lawrence (Orlando FL), Freestanding mixed tuned blade.
  4. Chou Rudy S. T. (Liverpool NY) Bushnell Peter R. (Cazenovia NY), Impeller for transverse fan.
  5. Heinig Roger W. (Cocoa Beach FL), Method and apparatus for reducing vibration in a turbo-machine blade.
  6. Ferleger Jurek (Longwood FL) Hofer Douglas C. (Orlando FL), Method of making a row of mix-tuned turbomachine blades.
  7. Evans David H. (Lake Mary FL), Turbine blades having alternating resonant frequencies.
  8. Kulina ; Mark R., Turbine rotor and blade configuration.
  9. Rossmann Axel (Karlsfeld DEX), Turbomachine rotor.

이 특허를 인용한 특허 (30)

  1. Kurt-Elli, Hilmi, Aerofoil assembly and a method of manufacturing an aerofoil assembly.
  2. Fulayter, Roy David; Ong, James, Fan.
  3. Fulayter, Roy David; Fanton, Bradley T., Fan assembly.
  4. Matthew Montgomery ; Marc Samit ; John A. Orosa, Frequency-mistuned light-weight turbomachinery blade rows for increased flutter stability.
  5. Martin,Nicholas Francis; Tipton,Thomas Robbins, Frequency-tuned compressor stator blade and related method.
  6. Schoenenborn, Harald, Gas turbine.
  7. Burdgick,Steven Sebastian; Lin,Wendy Wen Ling; Makinde,Adegboyega; Lanaud,Christophe; Bansal,Amitabh, Hybrid blade for a steam turbine.
  8. Burdgick,Steven Sebastian, Hybrid bucket and related method of pocket design.
  9. Burdgick,Steven Sebastian; DeLeonardo,Guy W.; Lin,Wendy W.; Lanaud,Christophe, Hybrid turbine blade and related method.
  10. Kelly, Frank; Heikurinen, Kari; Fazari, Edward; Wu, Yuhua, Intentionally mistuned integrally bladed rotor.
  11. Gronsfelder, Thomas; Walkenhorst, Jan; de Lazzer, Armin, Method for detuning a rotor-blade cascade.
  12. Schoenenborn, Harald, Method for machining an integrally bladed rotor.
  13. Ahmad, Fathi, Method for the production of coated turbine moving blades and moving-blade ring for a rotor of an axial-throughflow turbine.
  14. Kuehhorn, Arnold; Klauke, Thomas, Method of manufacturing integrally designed rotor wheels to exhibit an essentially identical natural frequency and mass using chemical etch machining.
  15. Theratil, Ignatius; Balike, Krishna Prasad; Ivakitch, Richard; Kelly, Sean Michael; Townsend, Peter; Dutton, Ronald; Stone, Paul; Venditti, Robert; Fudge, Daniel; Kojovic, Milica; Abate, Aldo, Mistuned fan.
  16. Burdgick,Steven Sebastian; DeLeonardo,Guy W.; Lin,Wendy W.; Barb,Kevin Joseph, Mixed tuned hybrid blade related method.
  17. Barb, Kevin Joseph, Mixed tuned hybrid bucket and related method.
  18. Stone,Paul, Natural frequency tuning of gas turbine engine blades.
  19. Ghizawi,Nidal A., Profiled blades for turbocharger turbines, compressors, and the like.
  20. Matthew Montgomery, Quadrant rotor mistuning for decreasing vibration.
  21. Duong, Loc Q.; Gupta, Shiv C.; Hu, Xiaolan, Radial compressor of asymmetric cyclic sector with coupled blades tuned at anti-nodes.
  22. Duong, Loc Q.; Gupta, Shiv C.; Hu, Xiaolan, Radial compressor with blades decoupled and tuned at anti-nodes.
  23. Ruba, Daniel; Scott, Matthew; Bowman, Thomas, Retaining and sealing ring assembly.
  24. Fulayter, Roy D.; Rivers, Jonathan M.; Jordan, Matthew; Molnar, Daniel E., Rotor for a gas turbine engine.
  25. Rowley, Henry A.; Baluja, Shumeet, Transportation routing.
  26. Rowley, Henry Allan; Baluja, Shumeet, Transportation routing.
  27. Rowley, Henry; Baluja, Shumeet, Transportation routing.
  28. Rowley, Henry; Baluja, Shumeet, Transportation routing.
  29. Rowley, Henry; Baluja, Shumeet, Transportation routing.
  30. Lecuyer, Daniel J; Shapiro, Andrew, Turbine blade for a gas turbine engine.
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