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. 01, 2022

Filed:

Apr. 14, 2021
Applicant:

Raytheon Technologies Corporation, Farmington, CT (US);

Inventors:

Paul R. Adams, Glastonbury, CT (US);

Shankar S. Magge, South Windsor, CT (US);

Joseph B. Staubach, Colchester, CT (US);

Wesley K. Lord, South Glastonbury, CT (US);

Frederick M. Schwarz, Glastonbury, CT (US);

Gabriel L. Suciu, Glastonbury, CT (US);

Assignee:

RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/36 (2006.01); F02C 3/107 (2006.01); F02C 9/18 (2006.01); F01D 11/12 (2006.01); F01D 5/06 (2006.01); F01D 25/24 (2006.01); F02C 3/04 (2006.01); F02C 7/20 (2006.01); F04D 19/02 (2006.01); F02K 3/075 (2006.01); F02K 3/06 (2006.01); F04D 29/32 (2006.01);
U.S. Cl.
CPC ...
F02C 7/36 (2013.01); F01D 5/06 (2013.01); F01D 11/122 (2013.01); F01D 25/24 (2013.01); F02C 3/04 (2013.01); F02C 3/107 (2013.01); F02C 7/20 (2013.01); F02C 9/18 (2013.01); F02K 3/06 (2013.01); F02K 3/075 (2013.01); F04D 19/02 (2013.01); F04D 29/324 (2013.01); F05B 2250/283 (2013.01); F05D 2220/32 (2013.01); F05D 2220/323 (2013.01); F05D 2220/36 (2013.01); F05D 2240/35 (2013.01); F05D 2240/60 (2013.01); F05D 2250/80 (2013.01); F05D 2260/40311 (2013.01);
Abstract

A turbofan engine according to an example of the present disclosure includes, among other things, a fan including an array of fan blades rotatable about an engine axis, a compressor including a high pressure compressor section and a low pressure compressor section, the low pressure compressor section including a low pressure compressor section inlet with a low pressure compressor inlet annulus area, a fan duct including a fan duct annulus area outboard of the low pressure compressor section inlet, and a turbine having a high pressure turbine section and a low pressure turbine section driving the fan through a speed reduction mechanism, wherein the low pressure turbine section defines a maximum gas path radius and the fan blades define a maximum radius, and a ratio of the maximum gas path radius to the maximum radius of the fan blades is less than 0.6.


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