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. 16, 2019
Filed:
Apr. 27, 2016
Siemens Energy, Inc., Orlando, FL (US);
Christian Xavier Campbell, Charlotte, NC (US);
Anand A. Kulkarni, Charlotte, NC (US);
Daniel M. Eshak, Orlando, FL (US);
Allister William James, Chuluota, FL (US);
Phillip Behling, Palm Beach Gardens, FL (US);
Ahmed Kamel, Orlando, FL (US);
SIEMENS ENERGY, INC., Orlando, FL (US);
Abstract
A gas turbine engine blade (), including a base portion () having a cast wall, and a tip portion () attached to the base portion and having a wall () formed by an additive manufacturing process. The tip portion wall may be formed to be solid and less than 2 mm in thickness, or it may be corrugated and be greater than 2 mm in thickness. Openings () defining the wall corrugations may be semi-circular, rectangular, trapezoidal, or elliptical in cross-sectional shape. The resulting blade has lower tip mass while retaining adequate mechanical properties. The tip portion may be formed to have a directionally solidified grain structure on a base portion having an equiaxed grain structure.