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. 25, 2021
Filed:
Apr. 10, 2019
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/18 (2006.01);
U.S. Cl.
CPC ...
F01D 5/187 (2013.01); F05D 2250/185 (2013.01); F05D 2260/20 (2013.01); F05D 2260/941 (2013.01);
Abstract
A method of reducing creep in an internally cooled turbine blade, comprising: providing a radially extending intermediate wall to continuously join a localized high stress zone of a concave side wall and a convex side wall in an intermediate cooling air channel through the blade. The intermediate wall distributes stress from the localized zone to a zone of lower stress to balance the creep inducing stress and temperature more evenly.