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. 27, 2018
Filed:
Jan. 16, 2015
Applicant:
United Technologies Corporation, Hartford, CT (US);
Inventors:
Thomas J. Praisner, Colchester, CT (US);
Eric A. Grover, Tolland, CT (US);
Renee J. Jurek, Colchester, CT (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); F01D 25/06 (2006.01); F01D 9/04 (2006.01); F01D 5/12 (2006.01); F01D 25/24 (2006.01); F04D 29/52 (2006.01); F04D 29/68 (2006.01); F04D 29/54 (2006.01); F04D 27/02 (2006.01);
U.S. Cl.
CPC ...
F01D 25/06 (2013.01); F01D 5/12 (2013.01); F01D 5/143 (2013.01); F01D 9/041 (2013.01); F01D 25/24 (2013.01); F01D 5/145 (2013.01); F04D 27/02 (2013.01); F04D 27/0207 (2013.01); F04D 29/526 (2013.01); F04D 29/547 (2013.01); F04D 29/685 (2013.01); F05D 2220/32 (2013.01); F05D 2240/12 (2013.01); F05D 2240/24 (2013.01); F05D 2250/70 (2013.01); F05D 2260/941 (2013.01); F05D 2260/96 (2013.01); Y02T 50/673 (2013.01);
Abstract
A turbomachine includes an annular flow path section between a plurality of radially extending stator vanes and a plurality of radially extending rotor blades. At least a first portion of the flow path section has a circumferentially varying outer periphery which includes a recess circumferentially alternating with axisymmetric surfaces.