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. 22, 2005
Filed:
Aug. 13, 2003
Steven Eric Tomberg, Simpsonville, SC (US);
Marvin Luther Neeley, Mauldin, SC (US);
Steven Eric Tomberg, Simpsonville, SC (US);
Marvin Luther Neeley, Mauldin, SC (US);
General Electric Company, Schenectady, NY (US);
Abstract
A turbine bucket airfoil has a conical fillet about the intersection of the airfoil tip and tip shroud having a nominal profile in accordance with coordinate values of X and Y, offset, offsetand Rho set forth in Table I. The shape parameters of offset, offsetand Rho define the configuration of the fillet at the specified X and Y locations about the fillet to provide a fillet configuration accommodating high localized stresses. The fillet shape may be parabolic, elliptical or hyperbolic as a function of the value of the shape parameter ratio ofat each X, Y location where Dl is a distance between an intermediate point along a chord between edge points determined by offsets Oand Oand a shoulder point on the fillet surface and D2 is a distance between the shoulder point and an apex location at the intersection of the airfoil tip and tip shroud.