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:
Apr. 28, 2015
Filed:
Jun. 28, 2013
Ching-pang Lee, Cincinnati, OH (US);
Kok-mun Tham, Oviedo, FL (US);
Eric Schroeder, Loveland, OH (US);
Jamie Meeroff, Cincinnati, OH (US);
Samuel R. Miller, Jr., Port St. Lucie, FL (US);
John J. Marra, Winter Springs, FL (US);
Christian X. Campbell, Charlotte, NC (US);
Ching-Pang Lee, Cincinnati, OH (US);
Kok-Mun Tham, Oviedo, FL (US);
Eric Schroeder, Loveland, OH (US);
Jamie Meeroff, Cincinnati, OH (US);
Samuel R. Miller, Jr., Port St. Lucie, FL (US);
John J. Marra, Winter Springs, FL (US);
Christian X. Campbell, Charlotte, NC (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
An outer rim seal arrangement (), including: an annular rim () centered about a longitudinal axis () of a rotor disc (), extending fore and having a fore-end (), an outward-facing surface (), and an inward-facing surface (); a lower angel wing () extending aft from a base of a turbine blade () and having an aft end () disposed radially inward of the rim inward-facing surface to define a lower angel wing seal gap (); an upper angel wing () extending aft from the turbine blade base and having an aft end () disposed radially outward of the rim outward-facing surface to define a upper angel wing seal gap (); and guide vanes () disposed on the rim inward-facing surface in the lower angel wing seal gap. Pumping fins () may be disposed on the upper angel wing seal aft end in the upper angel wing seal gap.