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:
Jun. 09, 2020
Filed:
Feb. 08, 2016
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Scott D. Lewis, Vernon, CT (US);
Kyle C. Lana, Portland, CT (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/06 (2006.01); F01D 5/14 (2006.01); F02C 3/04 (2006.01); F04D 29/32 (2006.01); F04D 29/68 (2006.01); F01D 5/20 (2006.01); F01D 11/08 (2006.01);
U.S. Cl.
CPC ...
F01D 5/145 (2013.01); F01D 5/06 (2013.01); F01D 5/141 (2013.01); F01D 5/20 (2013.01); F01D 11/08 (2013.01); F02C 3/04 (2013.01); F04D 29/324 (2013.01); F04D 29/681 (2013.01); F05D 2220/32 (2013.01); F05D 2240/305 (2013.01); F05D 2240/307 (2013.01); F05D 2240/35 (2013.01); F05D 2250/711 (2013.01); F05D 2250/712 (2013.01);
Abstract
A rotor blade for a gas turbine engine is provided. The rotor blade having: an attachment; an airfoil extending from the attachment to a tip; and a tip shelf located in a surface of the tip proximate to a pressure side of the airfoil, wherein the tip shelf has a ledge portion extending from the pressure side to a wall portion extending upwardly from the ledge portion to the tip and wherein the wall portion is configured to have a convex portion with respect to the pressure side of the airfoil as it extends from a leading edge to a trailing edge of the airfoil.