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Elastic connecting assembly for aero-engine

An aero-engine, elastic connection technology, applied in aircraft parts, aircraft power unit components, aircraft power units, etc., can solve problems such as stress concentration, poor rigidity, fatigue cracks, etc.

Active Publication Date: 2019-11-19
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The disadvantage of the existing elastic components is that the rigidity is poor, and it is easy to produce a Stress concentration, fatigue cracks after a certain flight time

Method used

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  • Elastic connecting assembly for aero-engine
  • Elastic connecting assembly for aero-engine
  • Elastic connecting assembly for aero-engine

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Embodiment Construction

[0024] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the pr...

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Abstract

The invention belongs to the technical field of aero-engine design, and relates to an elastic connecting assembly for an aero-engine. The elastic connecting assembly is arranged between a jet nozzle of an engine and a tail fairing, and comprises an inner shell, a modified inner shell and an outer shell, wherein the outer shell is provided with a notch, and the left part and the right part of the notch are both attached to the inner shell and the modified inner shell. The middle part of the inner shell and the middle part of the modified inner shell are provided with screw holes connected withthe jet nozzle of the engine, and box-shaped structures which protrude relative to the surface of the inner shell and the surface of the modified inner shell are arranged at the parts of the screw holes. The stress distribution of the elastic connecting assembly is improved through the box-shaped structures, so that fatigue cracks are avoided.

Description

technical field [0001] The application belongs to the technical field of aero-engine design, and in particular relates to an elastic connection assembly for an aero-engine. Background technique [0002] The elastic connection component is a rectifier that can connect the outer adjustment piece of the engine nozzle and the tail cover of the aircraft. It is generally used when the aero-engine is installed on a fighter jet. The tail nozzle of the fighter jet extends backward from the tail cover of the aircraft. The elastic connection assembly connects the engine tail nozzle and the tail cover to make a smooth transition between the two, eliminating the installation difficulties caused by engine or aircraft processing, and on the other hand, it makes the air flow between the aircraft and the engine continuous, so that the cooling air flow flowing through the engine compartment from Outflow behind to cool nozzle components. [0003] The disadvantage of the existing elastic compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D29/06
CPCB64D29/06
Inventor 吴飞周东旭邵万仁张志学
Owner AECC SHENYANG ENGINE RES INST
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