Ganesh N. Kumar
Engineering in Hamilton, OH
License number
Louisiana PE.0022210
Issued Date
Feb 25, 1986
Expiration Date
Mar 31, 2011
Category
Civil Engineer
Type
Mechanical Engineer
Address
Address
7311 Pebble Crk, Hamilton, OH 45044
Professional information
Teardrop Film Cooled Blade
US Patent:
7008186, Mar 7, 2006
Filed:
Sep 17, 2003
Appl. No.:
10/664649
Inventors:
Robert John Heeg - Cincinnati OH, US
Brian Alan Norton - Blue Ash OH, US
Scott Joseph Schmid - Cincinnati OH, US
Ganesh Nagab Kumar - Liberty Township OH, US
Brian Alan Norton - Blue Ash OH, US
Scott Joseph Schmid - Cincinnati OH, US
Ganesh Nagab Kumar - Liberty Township OH, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
F01D 5/18
US Classification:
416 97R, 415115
Abstract:
A turbine blade includes an airfoil having an internal cooling circuit with a first flow passage disposed directly behind the leading edge followed by a second flow passage separated therefrom by a corresponding bridge. The bridge includes a row of impingement apertures for cooling the leading edge. The suction sidewall of the airfoil includes a row of diffusion film cooling first holes extending in flow communication with the first passage. The first holes have a compound inclination angle, with a quadrilateral cross section forming a generally teardrop shaped outlet in the convex contour of the suction sidewall.