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:
Mar. 29, 2016
Filed:
May. 07, 2007
Applicants:
Jay A. Morrison, Oviedo, FL (US);
Jay E. Lane, Mims, FL (US);
Gary B. Merrill, Orlando, FL (US);
Inventors:
Assignee:
Siemens Energy, Inc., Orlando, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/30 (2006.01); F01D 11/12 (2006.01);
U.S. Cl.
CPC ...
F01D 11/122 (2013.01); B32B 3/30 (2013.01); F05D 2250/18 (2013.01); F05D 2250/70 (2013.01); F05D 2300/21 (2013.01); F05D 2300/603 (2013.01); Y10T 428/24355 (2015.01);
Abstract
A gas turbine component () with a layer of ceramic material () defining a wear surface (), in which an array of cross-shaped depressions (A,B) formed in the wear surface () define a continuous labyrinth of orthogonal walls () of the ceramic material, and reduce the area of the wear surface () by about 50%. Within a representative area () of the wear surface (), the depressions (A,B) provide a ratio of a lineal sum of depression perimeters () divided by the representative area () of the wear surface of least 0.9 per unit of measurement for improved abradability characteristics of the wear surface ().