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:
Dec. 23, 2008
Filed:
Aug. 16, 2005
Robert A. Charbonneau, Meriden, CT (US);
Kenneth P. Botticello, West Suffield, CT (US);
Shawn J. Gregg, Wethersfield, CT (US);
Kirk David Hlavaty, East Hartford, CT (US);
Jeffrey R. Levine, Wallingford, CT (US);
Kenneth A. Lonczak, Meriden, CT (US);
Craig R. Mcgarrah, Southington, CT (US);
Dominic J. Mongillo, West Hartford, CT (US);
Lisa P. O'neill, Manchester, CT (US);
Edward Pietraszkiewicz, Southington, CT (US);
Richard M. Salzillo, Plantsville, CT (US);
Heather Ann Terry, Middletown, CT (US);
Robert A. Charbonneau, Meriden, CT (US);
Kenneth P. Botticello, West Suffield, CT (US);
Shawn J. Gregg, Wethersfield, CT (US);
Kirk David Hlavaty, East Hartford, CT (US);
Jeffrey R. Levine, Wallingford, CT (US);
Kenneth A. Lonczak, Meriden, CT (US);
Craig R. McGarrah, Southington, CT (US);
Dominic J. Mongillo, West Hartford, CT (US);
Lisa P. O'Neill, Manchester, CT (US);
Edward Pietraszkiewicz, Southington, CT (US);
Richard M. Salzillo, Plantsville, CT (US);
Heather Ann Terry, Middletown, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
The present invention provides a turbine blade having a revised under-platform structure including a unique coating combination that reduces mechanical stress factors within the turbine blade. The turbine blade includes a platform with an airfoil extending upwardly from the airfoil and a root portion extending downwardly from the platform. Two suction side tabs extend a first distance outward from a suction side of the root potion. Two pressure side tabs extend outward from a pressure side of the root portion. One of the two pressure side tabs extends outward a distance similar to the first distance, however, the other of the two pressure side tabs extends outward a distance much smaller than the first distance, which reduces stresses acting on the turbine blade. In addition, a plurality of coatings are systematically applied to the turbine blade to further reduce mechanical stress factors and improve cooling.