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:
Jun. 12, 2018

Filed:

Apr. 01, 2015
Applicant:

United Technologies Corporation, Hartford, CT (US);

Inventors:

Michael J. Murphy, Windsor, CT (US);

Robert E. Malecki, Storrs, CT (US);

Assignee:

United Technologies Corporation, Framington, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/24 (2006.01); B64D 29/02 (2006.01); F02C 3/10 (2006.01); F01D 25/28 (2006.01);
U.S. Cl.
CPC ...
F01D 25/24 (2013.01); B64D 29/02 (2013.01); F02C 3/10 (2013.01);
Abstract

A nacelle for a turbofan propulsion system that extends along a centerline includes a forward cowling and an aft cowling. To improve the fit of a turbofan propulsion system in the space between the wing and ground of a fixed-wing aircraft, the aft cowling of the nacelle is modified. The aft cowling has a non-circular cross-sectional geometry disposed in a plane substantially perpendicular to the centerline. The non-circular cross-sectional geometry includes a radially recessed section disposed between first and second curved sections. The first and the second curved sections each have a radius that is greater than a radial distance between the centerline and a center point of the radially recessed section.


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