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Turbine BOAS with edge cooling

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F01D-011/08
출원번호 US-0975666 (2007-10-19)
발명자 / 주소
  • Liang, George
출원인 / 주소
  • Florida Turbine Technologies, Inc.
대리인 / 주소
    John, Ryznic
인용정보 피인용 횟수 : 19  인용 특허 : 17

초록

A cooling hole having an inlet passage forming an inward spiral flow path and an outlet passage forming an outward spiral flow path in which the two paths are counter flowing in order to improve the heat transfer coefficient. The spiral cooling hole is used in a blade outer air seal (BOAS) for a tur

대표청구항

I claim the following: 1. A shroud segment for use in a gas turbine engine, the shroud segment forming a BOAS with a stage of rotating blades, the shroud segment comprising:an impingement surface area on an opposite side from the hot gas flow surface;an edge of the shroud segment having a plurality

이 특허에 인용된 특허 (17)

  1. Romanov,Dmitriy; Drake,Jeremy, Blade outer seal with micro axial flow cooling system.
  2. Bolms,Hans Thomas; Heselhaus,Andreas; Hoffschmidt,Bernhard, Coolable segment for a turbomachine and combustion turbine.
  3. Pietraszkiewicz Edward F. (Maineville OH) Frey David A. (West Chester OH) Ackerman Robert I. (West Chester OH) Wright Carl D. (Clarksville OH), Cooled shroud.
  4. Camus, Stephane, Cooling circuit for gas turbine fixed ring.
  5. Draper,Samuel David; Blair,Michael; Alahyari,Abbas, Film cooling for microcircuits.
  6. Laurello, Vincent; Yuri, Masanori, Gas turbine having thermally insulating rings.
  7. Shiozaki, Shigehiro; Tomita, Yasuoki, Gas turbine segmental ring.
  8. Fujikawa, Tatsuaki; Tomita, Yasuoki; Torii, Shunsuke; Magoshi, Ryotaro; Kuwabara, Masamitsu; Inoue, Shinichi, Gas turbine split ring.
  9. Lee,Ching Pang, High efficiency fan cooling holes for turbine airfoil.
  10. Lutjen, Paul M.; Grogg, Gary; Joe, Christopher, Multiple cooling schemes for turbine blade outer air seal.
  11. Lee, Ching-Pang; Darolia, Ramgopal, Network cooled coated wall.
  12. Tiemann, Peter, Shaped part for forming a guide ring.
  13. Gregory Alan White ; Ching-Pang Lee, Shroud cooling segment and assembly.
  14. Sloop Robert V. (Jupiter FL) Kelch George W. (Palm Beach Gardens FL) Auxier Thomas A. (Palm Beach Gardens FL) Mack Gregory J. (Palm Beach Gardens FL), Turbine blade outer air seal with optimized cooling.
  15. Lucas, Terrence; B?dard, Dominic; Daniel, Amir; Synnott, Remy, Turbine shroud segment apparatus for reusing cooling air.
  16. Thompson Ralph J. (Tolland CT) Kane Daniel E. (Tolland CT), Turbine shroud segment with serpentine cooling channels.
  17. Thompson Ralph J. (Tolland CT) Kane Daniel E. (Tolland CT) Sunshine Robert W. (Hobe Sound FL), Turbine shroud segment with serpentine cooling channels having a bend passage.

이 특허를 인용한 특허 (19)

  1. Kitamura, Tsuyoshi; Masaki, Shinichiro, Aircraft gas turbine.
  2. Leslie, Nicholas R.; Maalouf, Fadi S.; Zotz, Georg; Humhauser, Werner, Blade outer air seal for a gas turbine engine.
  3. Lutjen, Paul M.; Dabbs, Thurman Carlo, Blade outer air seal for a gas turbine engine.
  4. Clouse, Brian Ellis, Blade outer air seal having anti-rotation feature.
  5. Clouse, Brian Ellis, Blade outer air seal having inward pointing extension.
  6. Clouse, Brian Ellis; Cloud, David F.; Clough, Donna, Blade outer air seal having shiplap structure.
  7. McCaffrey, Michael G., Blade outer air seal with cooling features.
  8. Romanov, Dmitriy A.; Mongillo, Jr., Dominic J.; Devore, Matthew A., Cooling channels for gas turbine engine component.
  9. Romanov, Dmitriy A., Ring-shaped compliant support.
  10. Romanov, Dmitriy A.; Zelesky, Mark F., Self-opening cooling passages for a gas turbine engine.
  11. Dillard, Daniel Jackson; Porter, Christopher Donald, Serpentine cooling of nozzle endwall.
  12. Taylor, Rupert John, Shroud arrangement for a gas turbine engine.
  13. Richardson, Carl S.; Rogers, Mark J.; Earl, Jonathan J.; Carman, Kenneth E.; Hayford, Richard K., Split damped outer shroud for gas turbine engine stator arrays.
  14. Benjamin, Marc Lionel; Lacy, Benjamin Paul; Foster, Gregory Thomas; Nguyen, San Jason, System and method for cooling turbine shroud.
  15. Lee, Ching-Pang; Tham, Kok-Mun; Laurello, Vincent P.; Azad, Gm Salam; Martin, Jr., Nicholas F., Turbine abradable layer with nested loop groove pattern.
  16. Tham, Kok-Mun; Laurello, Vincent P.; Lee, Ching-Pang; Azad, Gm Salam; Martin, Jr., Nicholas F.; Sansom, David G.; Hitchman, Neil, Turbine abradable layer with progressive wear zone multi level ridge arrays.
  17. Lee, Ching-Pang; Tham, Kok-Mun; Azad, Gm Salam, Turbine abradable layer with zig zag groove pattern.
  18. Tham, Kok-Mun; Lee, Ching-Pang, Turbine shroud with abradable layer having dimpled forward zone.
  19. Lee, Ching-Pang; Subramanian, Ramesh; Tham, Kok-Mun, Turbine shroud with abradable layer having ridges with holes.
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