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특허 상세정보

Stator blades of turbomachines

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F04D-021/00   
미국특허분류(USC) 415/181 ; 415/119 ; 415/DIG ; 1 ; 416/223A
출원번호 US-0658080 (1984-10-09)
발명자 / 주소
인용정보 피인용 횟수 : 28  인용 특허 : 1
초록

In turbomachine apparatus having alternating rows of stator blades and rotor blades, there is provided discontinuities or nonuniformities on the downstream facing surfaces of at least one row of stator blades, the nonuniformities being adapted to disperse pressure waves reflected from downstream rotor blades. The nonuniformities may be an arrangement of grooves, ridges, or a combination of grooves and ridges on the downstream facing blade surfaces; other surface discontinuity configurations are also possible, such as an arrangement of potruding surface e...

대표
청구항

In combination in a turbomachine, a casing, at least one row of spaced stator blades, with stator flow passages therebetween, mounted therein and extending inwardly therefrom, a rotor positioned in said casing for rotation about an axis and having mounted thereon at least one row of spaced rotor blades, with rotor flow passages therebetween, at least one of said rows of stator blades having blade surfaces facing downstream toward one row of said rotor blades, at least some of said downstream facing surfaces having discontinuity groove means positioned ad...

이 특허를 인용한 특허 피인용횟수: 28

  1. Bunker Ronald Scott ; Abuaf Nesim. Airfoil with reduced heat load. USP2001026183197.
  2. Wainauski Harry S. (Simsbury CT) Vaczy Carol M. (Swampscott MA). Airfoiled blade. USP1990074941803.
  3. Odayarkoil N Ramesh GB; Howard P Hodson GB; Neil W Harvey GB. Axial flow turbines. USP2002076416289.
  4. Fiala, Andreas; Gier, Jochen. Blade for a turbo device with a vortex-generator. USP2014088814529.
  5. Huebner, Norbert. Blade with optimized vibration behavior. USP2003016503053.
  6. Straub, Andreas; Petervary, Miklos; Hood, William. Composite rotor having recessed radial splines for high torque applications. USP2003076595751.
  7. Harvey, Neil W.; Bolger, John J.. Compressor aerofoil. USP2015069046111.
  8. Durocher, Eric; Sleiman, Mohamad; Tsifourdaris, Panagiota. Deflector for a gas turbine strut and vane assembly. USP2012058182204.
  9. Berschback, Casey Lauren; Wood, Trevor Howard; Lin, Wendy Wenling; Liou, Lara. Durable riblets for engine environment. USP20181010107302.
  10. Belady, Christian L; Zeighami, Roy M.. Fan blade providing enhanced performance in air movement. USP2003036538887.
  11. Macchia, Enzo; Guglielmin, George; Patel, Bhawan; Lanzino, Joe. Gas turbine stator with winglets. USP20180810060441.
  12. Kao, Alan Lin; Robinson, Lance Travis; Chilcoat, David Wayne. High efficiency impeller. USP2015069046090.
  13. Jones,Michael G.; Parrott,Tony L.; Heidelberg,Laurence J.; Envia,Edmane. Low-noise fan exit guide vanes. USP2008027334998.
  14. Walter,Robert A.; Christensen,David; Granda,Caroline Curtis; Nussbaum,Jeffrey; Wei,Anna; Macrorie,Michael; Chaidez,Tara. Methods and apparatus for reducing vibrations induced to airfoils. USP2009037497664.
  15. Nussbaum, Jeffrey Howard; Wei, Xin; Chaidez, Tara; Macrorie, Michael. Methods and apparatus for reducing vibrations induced to compressor airfoils. USP2005066905309.
  16. Ramakrishnan, Kishore; Wood, Trevor Howard. Noise reduction in a turbomachine, and a related method thereof. USP2013098540490.
  17. Kneeland, Andrew Ray; Garcia-Crespo, Andres Jose; Boyer, Bradley T.; Vandeputte, Thomas William; Pierre, Sylvain. Non-axisymmetric airfoil platform shaping. USP2015059039375.
  18. Varney A. Michael ; Martino John D.. Pump jet rotor housing modification for noise signature spectral control. USP2001086270385.
  19. Jodet, Norman Bruno André; Rolland, Hervé. Rotor blade with reduced acoustic response. USP20180710024176.
  20. Muller Karl-Heinrich,DEX ; Ulm Wilfried,DEX ; Bell Ralf,DEX ; Simon Volker,DEX. Steam turbine and blade or vane for a steam turbine. USP2001046213711.
  21. Lecuyer, Daniel J; Shapiro, Andrew. Turbine blade for a gas turbine engine. USP2017059650914.
  22. Baldauf, Stefan; Händler, Michael; Lerner, Christian. Turbine blade for a gas turbine, use of a turbine blade and method for cooling a turbine blade. USP2010087766616.
  23. Kuefner Gustav,DEX ; Mueller Horst,DEX ; Breindl Martin,DEX ; Sokol Bernd,DEX ; Zeisler Walter,DEX. Turbine blade for use in the wet steam region of penultimate and ultimate stages of turbines. USP1999126004102.
  24. Beeck, Alexander R.. Turbine component including airfoil with contour. USP2015049017030.
  25. Parker, John Frederick. Variable geometry turbine. USP2013128601812.
  26. Martin, Thomas J.; Staroselsky, Alexander; Slavens, Thomas N.; Zelesky, Mark F.; Wagner, Joel H.. Vortex generators for improved film effectiveness. USP2015089109452.
  27. Sauer, Dieter. Wind sail turbine. USP2014128905704.
  28. Sauer, Jr., Dieter. Wind sail turbine. USP2014108864440.