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:
Feb. 18, 2014
Filed:
Jun. 02, 2011
Evan Andrew Sewall, Simpsonville, SC (US);
James William Vehr, Easley, SC (US);
Frederic Woodrow Roberts, Jr., Simpsonville, SC (US);
Evan Andrew Sewall, Simpsonville, SC (US);
James William Vehr, Easley, SC (US);
Frederic Woodrow Roberts, Jr., Simpsonville, SC (US);
General Electric Company, Schenectady, NY (US);
Abstract
A turbine vane or blade segment includes at least one airfoil extending radially outwardly from a radially inner band. A plurality of cooling passages are formed in the radially inner band in fluid communication with an internal plenum in the airfoil and exiting the inner band via a plurality of exit holes in the one of the axially-extending side edges of the inner band. The plurality of exit holes are confined to a region along the one of the axially-extending side edges where static pressure Palong the one of the substantially axially-extending side edges lies in a pressure range substantially between the stage inlet total pressure Pand a pressure that is substantially about 1.5 times the dynamic pressure range ΔP, below the stage inlet total pressure.