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특허 상세정보

Radial compressor of asymmetric cyclic sector with coupled blades tuned at anti-nodes

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F03D-011/00    B64C-011/04    B63H-001/26    B63H-007/02   
미국특허분류(USC) 415/119; 416/241R; 416/500; 416/228
출원번호 US-0387535 (2009-05-04)
등록번호 US-8172510 (2012-05-08)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Kinney & Lange, P.A.
인용정보 피인용 횟수 : 1  인용 특허 : 22

A gas turbine engine includes a radial compressor having first and second blades. The first blade has a tuned leading edge that prevents either blade from exciting at a natural frequency at speeds within an expected operating speed range.


1. A radial compressor for use in a gas turbine engine operating in an expected operating speed range, the radial compressor comprising: a first radial compressor blade having a first leading edge with a first normal portion and a first tuned portion, wherein the first tuned portion has a thickness different than that of the first normal portion;a second radial compressor blade having a substantially different shape from the first radial compressor blade; anda substantially frusto-conical disc connecting the first radial compressor blade to the second ra...

이 특허에 인용된 특허 (22)

  1. Schwaller Peter J. G. (Horsley Woodhouse GB2) Newby David R. (Allestree GB2). Arrangement for minimizing buzz saw noise in bladed rotors. USP1988034732532.
  2. Chiang, Chung-Ping; Chen, Jiing Fu; Chow, Yung-Lo; Yen, Cheng-Chung. Centrifugal impeller. USP2010097789627.
  3. Faulkner Dennis T. (Rockford IL) Glennon Timothy F. (Rockford IL) Markunas Albert L. (Roscoe IL). Compressor load control for an auxiliary power unit. USP1983014370560.
  4. Griffin,Jerry H.; Feiner,Drew M.. Determination of damping in bladed disk systems using the fundamental mistuning model. USP2007047206709.
  5. Brafford Perry W. ; Gebre-Giorgis Yoseph ; Murthy Durbha V.. Detuned fan blade apparatus and method. USP2000036042338.
  6. Hein,Jeffrey M.; Williams,Nicholas A.; Sheoran,Yogendra Y.; Lam,Cecilia S.; Cowans,Ora M.; Higuera,Benjamen K.; Peduchi,Andrew S.; Sellahewa,Ravisha P.; Brown,Daniel. Dual action inlet door and method for use thereof. USP2006037014144.
  7. Matthew Montgomery ; Marc Samit ; John A. Orosa. Frequency-mistuned light-weight turbomachinery blade rows for increased flutter stability. USP2002106471482.
  8. Schuh Paul A. (San Diego CA). Gas turbine engine/load compressor power plants. USP1986124627234.
  9. Schuh Paul A. (San Diego CA). Gas turbine engine/load compressor power plants. USP1989054834622.
  10. Vershure ; Jr. Roy W. (Escondido CA) Rodgers Colin (San Diego CA) Shekleton Jack R. (San Diego CA). Integrated power unit. USP1989034815277.
  11. Schwaar Pierre G. (Monroe CT) O\Connor John A. (Orange CT). Low noise blades for axial flow compressors. USP1977034012172.
  12. Neely Michael J. (Dayton OH) Brendel Michael (Centerville OH) Savage John R. (Kettering OH). Low-noise, high-efficiency fan assembly combining unequal blade spacing angles and unequal blade setting angles. USP1997105681145.
  13. Dupeux,J��r��me; Dupont,Christian; Lombard,Jean Pierre; Seinturier,Eric. Method for introducing a deliberate mismatch on a turbomachine bladed wheel and bladed wheel with a deliberate mismatch. USP2009037500299.
  14. Decker, David; Roby, Stephen I.. Method of making turbocharger including cast titanium compressor wheel. USP2005066904949.
  15. Rodgers Colin (San Diego CA). Multipurpose auxiliary power unit. USP1990044916893.
  16. Stone,Paul. Natural frequency tuning of gas turbine engine blades. USP2007087252481.
  17. Matthew Montgomery. Quadrant rotor mistuning for decreasing vibration. USP2002046379112.
  18. Shapiro Benjamin. Rotors with mistuned blades. USP1999115993161.
  19. John Zhiqiang Wang ; Paul Francis Norton ; Kevin Joseph Barb ; Ariel Caesar-Prepena Jacala. Turbine bucket natural frequency tuning rib. USP2002116481972.
  20. Napier James C. (San Diego CA) Thompson Robert G. (San Diego CA). Turbine inlet silencer. USP1992085140819.
  21. Napier James C. (San Diego CA) Thompson Robert G. (San Diego CA). Turbine inlet silencer. USP1996025491308.
  22. Wagner ; John T.. Vibratory tuning of rotatable blades for elastic fluid machines. USP1978084108573.