The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2006
Filed:
Sep. 17, 2003
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);
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);
General Electric Company, Schenectady, NY (US);
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.