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:
Jan. 08, 2019

Filed:

Sep. 22, 2017
Applicant:

United Technologies Corporation, Farmington, CT (US);

Inventors:

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

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

Assignee:

UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02K 3/075 (2006.01); F02K 1/18 (2006.01); B64D 33/04 (2006.01); F02K 1/30 (2006.01); F02K 1/72 (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 includes fan section including a plurality of fan blades, a gear train, a low spool including a low pressure turbine and a low pressure compressor, the low pressure turbine driving the plurality of fan blades through the gear train, and a high spool including a high pressure turbine driving a high pressure compressor. A fan nacelle at least partially surrounds a core nacelle to define a fan bypass flow path. A fan variable area nozzle is in communication with the fan bypass flow path and defines a fan nozzle exit area between the fan nacelle and the core nacelle. The fan variable area nozzle varies the fan nozzle exit area.


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