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. 02, 2021

Filed:

Dec. 10, 2018
Applicant:

Raytheon Technologies Corporation, Farmington, CT (US);

Inventors:

Gregory A. Kohlenberg, Kensington, CT (US);

Sean P. Zamora, Conventry, CT (US);

Assignee:

RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02K 1/18 (2006.01); F02K 1/30 (2006.01); F02K 1/72 (2006.01); B64D 33/04 (2006.01); B64D 31/00 (2006.01); F01D 5/06 (2006.01); F01D 25/24 (2006.01); F02K 3/06 (2006.01); F04D 29/32 (2006.01); F04D 29/38 (2006.01); F04D 29/52 (2006.01); F04D 29/56 (2006.01); B64D 27/16 (2006.01); F02C 7/36 (2006.01);
U.S. Cl.
CPC ...
F02K 1/18 (2013.01); B64D 27/16 (2013.01); B64D 31/00 (2013.01); B64D 33/04 (2013.01); F01D 5/06 (2013.01); F01D 25/24 (2013.01); F02C 7/36 (2013.01); F02K 1/30 (2013.01); F02K 1/72 (2013.01); F02K 3/06 (2013.01); F04D 29/321 (2013.01); F04D 29/325 (2013.01); F04D 29/38 (2013.01); F04D 29/522 (2013.01); F04D 29/563 (2013.01); F05D 2220/323 (2013.01); F05D 2220/36 (2013.01); F05D 2230/50 (2013.01); F05D 2240/128 (2013.01); F05D 2260/40311 (2013.01); F05D 2270/3015 (2013.01);
Abstract

A turbofan engine according to an example of the present disclosure includes, among other things, a fan section including a plurality of fan blades, a gear train, a low pressure turbine driving the fan section through the gear train, a fan nacelle and a core nacelle, the fan nacelle at least partially surrounding the core nacelle, a fan bypass flow path defined between the core nacelle and the fan nacelle, and a fan variable area nozzle in communication with the fan bypass flow path, and defining a fan nozzle exit area between the fan nacelle and the core nacelle. The fan variable area nozzle includes a first fan nacelle section and a second fan nacelle section, the second fan nacelle section movably mounted relative the first fan nacelle section and moveable axially along an engine axis of rotation relative the first fan nacelle section, defining an auxiliary port that extends between the first fan nacelle section and the second fan nacelle section.


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