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:
May. 05, 2020
Filed:
Apr. 06, 2018
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Russell J. Bergman, South Windsor, CT (US);
Alan W. Stoner, Manchester, TN (US);
Assignee:
United Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/08 (2006.01); F01D 5/20 (2006.01); F01D 5/18 (2006.01); F01D 5/22 (2006.01); F01D 5/14 (2006.01);
U.S. Cl.
CPC ...
F01D 5/20 (2013.01); F01D 5/147 (2013.01); F01D 5/187 (2013.01); F01D 5/225 (2013.01); F05D 2230/21 (2013.01); F05D 2240/11 (2013.01); F05D 2240/307 (2013.01); F05D 2240/55 (2013.01); F05D 2260/20 (2013.01); F05D 2260/202 (2013.01);
Abstract
A blade for a gas turbine engine includes an airfoil that includes an internal passage. A shroud is arranged at an end of the airfoil and has a shroud perimeter. Axially spaced knife edges extend radially from the shroud. An area is provided between the knife edges. A pocket is recessed into the area and is circumscribed by a perimeter edge that is arranged interiorly of the shroud perimeter. An outlet fluidly connects the internal passage to the pocket.