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.

Date of Patent:
Nov. 19, 2019

Filed:

Sep. 11, 2017
Applicant:

United Technologies Corporation, Farmington, CT (US);

Inventors:

David J. Candelori, Glastonbury, CT (US);

Michael F. Blair, Manchester, CT (US);

Assignee:

UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/54 (2006.01); F01D 5/14 (2006.01); F01D 17/14 (2006.01); F01D 9/04 (2006.01); F01D 17/16 (2006.01); F01D 5/18 (2006.01);
U.S. Cl.
CPC ...
F01D 5/148 (2013.01); F01D 5/142 (2013.01); F01D 5/145 (2013.01); F01D 5/186 (2013.01); F01D 9/041 (2013.01); F01D 17/148 (2013.01); F01D 17/16 (2013.01); F01D 17/162 (2013.01); F04D 29/544 (2013.01); F05D 2240/122 (2013.01); F05D 2240/304 (2013.01); F05D 2260/202 (2013.01);
Abstract

Disclosed is a vane stage for a variable area turbine, comprising vane platforms comprising a first vane platform and a second vane platform, one of the vane platforms being a radial inner vane platform and another of the vane platforms being a radial outer vane platform, and a space therebetween defining an air flowpath; a primary vane body secured at opposing radial ends to the first vane platform and the second vane platform, a secondary vane body movably secured at the first vane platform, the secondary vane body being movable between a stowed position, wherein the secondary vane body is outside of the air flow path, and a deployed position, wherein the secondary vane body is extended between the plurality of vane platforms to form a vane trailing edge extension.


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