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:
Jan. 28, 2003
Filed:
Sep. 23, 1999
Mark J. Mielke, Blanchester, OH (US);
James E. Rhoda, Mason, OH (US);
David E. Bulman, Cincinnati, OH (US);
Craig P. Burns, Mason, OH (US);
Paul M. Smith, Loveland, OH (US);
Daniel G. Suffoletta, Cincinnati, OH (US);
Steven M. Ballman, West Chester, OH (US);
Richard P. Zylka, Cincinnati, OH (US);
Lawrence J. Egan, Mason, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A gas turbine engine rotor assembly including a rotor having a radially outer rim with an outer surface shaped to reduce circumferential rim stress concentration between each blade and the rim. Additionally, the shape of the outer surface directs air flow away from an interface between a blade and the rim to reduce aerodynamic performance losses between the rim and blades. In an exemplary embodiment, the outer surface of the rim has a concave shape between adjacent blades with apexes located at interfaces between the blades and the rim.