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. 10, 2018
Filed:
Apr. 23, 2015
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventor:
Enzo Macchia, Kleinburg, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, Quebec, unknown;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/12 (2006.01); F01D 25/24 (2006.01); F01D 5/28 (2006.01); F01D 25/26 (2006.01); F01D 5/14 (2006.01); F01D 5/20 (2006.01); F01D 25/06 (2006.01); F01D 5/26 (2006.01);
U.S. Cl.
CPC ...
F01D 11/122 (2013.01); F01D 5/143 (2013.01); F01D 5/145 (2013.01); F01D 5/20 (2013.01); F01D 5/26 (2013.01); F01D 5/28 (2013.01); F01D 25/06 (2013.01); F01D 25/24 (2013.01); F01D 25/246 (2013.01); F05D 2250/292 (2013.01);
Abstract
A rotor assembly having a wear member secured to an inner surface of the outer wall of the flow path. The wear member is made of material abradable by the blades. The wear member is located upstream of the blades. A downstream end of the wear member is abradably shaped by the blades upon rotation. An inner surface of the wear member is directed radially inwardly along a direction of flow in the flow path for deflecting a boundary layer of the flow into the annular blade path. A gas turbine engine and a method reducing tip vortices in a rotor assembly are also discussed.