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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.:

US 11767789 B1

PDFFull Text
Date of Patent:
Sep. 26, 2023

Filed:

Sep. 24, 2021

Turbofan gas turbine engine

Applicant:

Rolls-royce Plc, London, GB;

Inventors:

Natalie C Wong, Bristol, GB;

Thomas S Binnington, Bristol, GB;

David A Jones, Bristol, GB;

Daniel Blacker, Bristol, GB;

Assignee:

ROLLS-ROYCE plc, London, GB;

Attorney:

Oliff PLC

Primary Examiner:

Gerald L Sung

Assistant Examiner:

Alyson Joan Harrington

Int. Cl.
CPC ...
F02C 7/04 (2006.01); F02C 7/18 (2006.01); B64D 27/10 (2006.01); B64D 33/02 (2006.01); B64D 33/04 (2006.01); B64D 33/08 (2006.01); B64D 27/20 (2006.01); B64D 33/10 (2006.01); F02K 3/06 (2006.01); F02K 3/075 (2006.01); F02C 7/08 (2006.01); F02C 7/12 (2006.01); F01D 9/06 (2006.01); F02C 7/14 (2006.01); F02K 3/115 (2006.01);
U.S. Cl.
CPC ...
F02C 7/04 (2013.01); B64D 27/10 (2013.01); B64D 27/20 (2013.01); B64D 33/02 (2013.01); B64D 33/04 (2013.01); B64D 33/08 (2013.01); B64D 33/10 (2013.01); F01D 9/065 (2013.01); F02C 7/08 (2013.01); F02C 7/12 (2013.01); F02C 7/18 (2013.01); F02K 3/06 (2013.01); F02K 3/075 (2013.01); B64D 2033/024 (2013.01); B64D 2033/0286 (2013.01); F02C 7/14 (2013.01); F02K 3/115 (2013.01); F05D 2220/323 (2013.01); F05D 2220/36 (2013.01); F05D 2260/213 (2013.01);
Abstract

A turbofan gas turbine engine comprises, in axial flow sequence, a heat exchanger module, a fan assembly, a compressor module, and a turbine module. The fan assembly comprises a plurality of fan blades defining a fan diameter (D). The heat exchanger module comprises a plurality of heat transfer elements. The heat exchanger module is in fluid communication with the fan assembly by an inlet duct. The inlet duct has a fluid path length along a central axis of the inlet duct between a downstream-most face of the heat transfer elements and an upstream-most face of the fan assembly. The fluid path length is less than 10.0*D.

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