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:
Dec. 16, 2003
Gerard Anthony Rinck, Cleves, OH (US);
Jonathan Philip Clarke, West Chester, OH (US);
Mark Edward Stegemiller, Franklin, OH (US);
Hardev Singh, Mason, OH (US);
Steven Robert Brassfield, Cincinnati, OH (US);
Gerard Anthony Rinck, Cleves, OH (US);
Jonathan Philip Clarke, West Chester, OH (US);
Mark Edward Stegemiller, Franklin, OH (US);
Hardev Singh, Mason, OH (US);
Steven Robert Brassfield, Cincinnati, OH (US);
General Electric Co., Schenectady, NY (US);
Abstract
A gas turbine engine turbine blade includes a hollow airfoil extending radially from a blade root to a radially outer airfoil tip. The airfoil includes an airfoil outer wall having transversely spaced apart pressure and suction side walls meeting along chordally spaced apart leading and trailing edges of the airfoil. A radially extending cooling air supply channel within the airfoil includes a bank of pins integral with and extending transversely between the pressure and suction side walls. The bank of the pins is tuned such that a natural frequency of the blade associated with an engine forced driving mode of the blade is sufficiently away from a steady state engine operating frequency to substantially avoid natural frequency resonance of the blade during steady state engine operation. The bank of the pins is tuned by locations of the pins within the cooling air supply channel.