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:
Oct. 29, 2019

Filed:

Jan. 12, 2016
Applicant:

United Technologies Corporation, Farmington, CT (US);

Inventors:

Christopher Treat, Manchester, CT (US);

Alexander Broulidakis, Tolland, CT (US);

Andrew D. Burdick, Somers, CT (US);

Assignee:

United Technologies Corporation, Farmington, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 9/06 (2006.01); F01D 25/24 (2006.01); F02C 7/32 (2006.01); F02C 7/20 (2006.01); F01D 25/14 (2006.01); F02C 3/04 (2006.01);
U.S. Cl.
CPC ...
F02C 7/32 (2013.01); F01D 9/065 (2013.01); F01D 25/243 (2013.01); F02C 3/04 (2013.01); F01D 25/14 (2013.01); F01D 25/24 (2013.01); F02C 7/20 (2013.01); F05D 2300/501 (2013.01);
Abstract

A gas turbine engine component has an engine case structure surrounding an engine center axis. A plurality of holes are formed in the engine case structure, wherein the holes are circumferentially spaced apart from each other about the engine center axis. The plurality of holes includes at least one balance hole and at least one service hole that is configured to allow another engine component to pass through the at least one service hole. At least one cover is configured to cover at least one balance hole such that air is prevented from passing through the at least one balance hole.


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