Patent ID: 9567905
Date: 2017-02-14
CPC Classifications: B64D,F01D,F02C,F05D,Y02T,Y10T

Claim:
1. An aircraft nacelle comprising: a first duct extending from an air intake of the aircraft nacelle to an end portion with a first duct annular ring flange extending away from an exterior surface of the first duct; a second duct surrounding a powerplant and having a first end including a second duct annular ring flange fastened to the first duct annular ring flange, wherein the first duct annular ring flange and the second duct annular ring flange both run in planes that are substantially perpendicular to a longitudinal direction; a hollow section piece connected to the exterior surface of the first duct, the hollow section piece extending over at least part of a circumference of the end portion of the first duct, and wherein the hollow section piece comprises a longitudinal cross section that is a hollow rectangle or a hollow square; a rear frame fastened to the exterior surface of the first duct and, wherein the hollow section piece is connected to the exterior surface of the first duct between the rear frame and the first duct annular ring flange.