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. 27, 2018
Filed:
May. 20, 2014
Siemens Energy, Inc., Orlando, FL (US);
Charles M. Evans, Tequesta, FL (US);
Andrew R. Narcus, Loxahatchee, FL (US);
John Pula, Jupiter, FL (US);
SIEMENS ENERGY, INC., Orlando, FL (US);
Abstract
A turbine blade tip shroud (C,D) with a seal rail (C,D) oriented in a circumferential direction of rotation () relative to a turbine axis, and extending radially outward from the tip relative to the turbine axis. A first tooth () and a second tooth () form respective downstream and upstream lateral departures or bumps on the seal rail. Each tooth has a sharp top leading edge () and a smoothly curved side surface (). A back portion () of the seal rail may span linearly from a lateral peak () of the second tooth to a back end () of the seal rail that is centered on an extended centerline () of a front portion () of the seal rail. The teeth may be disposed proximate or over a stacking axis () of the blade.