Title:
GAS TURBINE WITH OPTIMIZED AIRFOIL ELEMENT ANGLES
Document Type and Number:
WIPO Patent Application WO/2013/103409
Kind Code:
A3
Abstract:
A turbine airfoil assembly for installation in a gas turbine engine. The airfoil assembly includes an endwall and an airfoil extending radially outwardly from the endwall. The airfoil includes pressure and suction sidewalls defining chordally spaced apart leading and trailing edges of the airfoil. An airfoil mean line is defined located centrally between the pressure and suction sidewalls. An angle between the mean line and a line parallel to the engine axis at the leading and trailing edges defines gas flow entry angles, α, and exit angles, β. Airfoil inlet and exit angles are substantially in accordance with pairs of inlet angle values, α, and exit angle values, β, set forth in one of Tables 1, 3, 5 and 7.
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Inventors:
MALANDRA ANTHONY J (US)
LEE CHING-PANG (US)
BROWN BARRY J (US)
MUNOZ ERIC (US)
LEE CHING-PANG (US)
BROWN BARRY J (US)
MUNOZ ERIC (US)
Application Number:
PCT/US2012/058934
Publication Date:
September 06, 2013
Filing Date:
October 05, 2012
Export Citation:
Assignee:
SIEMENS ENERGY INC (US)
International Classes:
F01D5/14
Foreign References:
| US20050220625A1 | 2005-10-06 | |||
| US20110150659A1 | 2011-06-23 | |||
| US4900230A | 1990-02-13 | |||
| EP2317077A2 | 2011-05-04 |
Attorney, Agent or Firm:
SWANSON, Erik C. et al. (170 Wood Avenue SouthIselin, New Jersey, US)
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