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:
May. 27, 2025

Filed:

Mar. 14, 2024
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Arthur William Sibbach, Boxford, MA (US);

Nicholas Joseph Kray, Mason, OH (US);

Brandon Wayne Miller, Liberty Township, OH (US);

Gary Willard Bryant, Jr., Loveland, OH (US);

Assignee:

General Electric Company, Evendale, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02K 3/06 (2006.01); F01D 9/04 (2006.01); F01D 25/24 (2006.01); F02C 7/045 (2006.01); F02C 7/24 (2006.01); F04D 29/52 (2006.01); F04D 29/54 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F02K 3/06 (2013.01); F02C 7/045 (2013.01); F02C 7/24 (2013.01); F04D 29/526 (2013.01); F04D 29/541 (2013.01); F04D 29/542 (2013.01); F04D 29/664 (2013.01); F04D 29/667 (2013.01); F01D 9/042 (2013.01); F01D 25/24 (2013.01); F05D 2220/36 (2013.01); F05D 2260/14 (2013.01); F05D 2260/96 (2013.01);
Abstract

A gas turbine engine is provided having: a turbomachine; a fan rotatable by the turbomachine, the fan comprising a fan blade, the fan blade defining an outer tip along the radial direction, a trailing edge at the tip, and a length, L, at the tip along the axial direction; and an outer nacelle surrounding the fan and surrounding at least in part the turbomachine, the outer nacelle comprising a stage of pre-swirl inlet guide vanes located upstream of the fan, the stage of pre-swirl inlet guide vanes having a pre-swirl inlet guide vane, the outer nacelle further comprising an inner surface along the radial direction and an acoustic treatment coupled to or integrated with the inner surface.


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