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:
Feb. 11, 2020
Filed:
Feb. 06, 2014
Applicant:
United Technologies Corporation, Hartford, CT (US);
Inventors:
Ken F. Blaney, Middleton, NH (US);
Todd M. LaPierre, Middleton, NH (US);
Assignee:
United Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/22 (2006.01); F01D 25/24 (2006.01); F02C 7/28 (2006.01);
U.S. Cl.
CPC ...
F01D 11/22 (2013.01); F01D 25/24 (2013.01); F02C 7/28 (2013.01); F05D 2220/32 (2013.01); F05D 2240/55 (2013.01); F05D 2260/42 (2013.01); F05D 2270/60 (2013.01);
Abstract
An active clearance control system of a gas turbine engine includes a radially adjustable blade outer air seal system movable between a radially contracted Blade Outer Air Seal (BOAS) position that defines a first air volume and a radially expanded Blade Outer Air Seal (BOAS) position that defines a second air volume, the second air volume different than the first air volume. An accumulator system accommodate a difference in air volume between the first air volume and the second air volume.