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:
Aug. 09, 2022

Filed:

Aug. 04, 2020
Applicant:

Raytheon Technologies Corporation, Farmington, CT (US);

Inventors:

Dmitriy B. Sidelkovskiy, Ellington, CT (US);

Steven H. Zysman, Amston, CT (US);

Assignee:

Raytheon Technologies Corporation, Farmington, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02K 1/72 (2006.01); B64D 27/16 (2006.01); F02K 3/06 (2006.01); F02K 1/80 (2006.01); B64D 29/00 (2006.01); B64D 29/06 (2006.01); B64D 33/02 (2006.01); B64D 33/04 (2006.01); F01D 25/24 (2006.01); F02C 3/04 (2006.01);
U.S. Cl.
CPC ...
F02K 1/72 (2013.01); B64D 27/16 (2013.01); B64D 29/00 (2013.01); B64D 29/06 (2013.01); B64D 33/02 (2013.01); B64D 33/04 (2013.01); F01D 25/24 (2013.01); F02C 3/04 (2013.01); F02K 1/80 (2013.01); F02K 3/06 (2013.01); B64D 2033/0286 (2013.01); F05D 2220/323 (2013.01); F05D 2260/50 (2013.01);
Abstract

A nacelle may comprise an inlet cowling defining an inlet of the nacelle, wherein the inlet cowling comprises an inlet cowling maximum point and an inlet cowling aft edge, wherein the inlet cowling aft edge comprises an aft edge length; and a boat tail cowling disposed aft of the inlet cowling, wherein the boat tail cowling comprises a boat tail cowling forward edge having a forward edge length, and wherein the boat tail cowling forward edge is disposed adjacent to the inlet cowling aft edge. The forward edge length may be smaller than the aft edge length, forming a step, the step being defined by a portion of the inlet cowling aft edge that is radially outward of the boat tail cowling forward edge.


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