Aero-engine jet pipe throat area adjusting mechanism

An aero-engine and area adjustment technology, which is applied in the direction of machines/engines, jet propulsion devices, etc., can solve the problems of low adjustment efficiency, complex structure, and large space occupation, and achieve small space occupation, high load transmission efficiency, and high adjustment efficiency. Effect

Inactive Publication Date: 2021-05-07
AECC SHENYANG ENGINE RES INST
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) The structure is complex and needs to occupy a large space;
[0005] 2) In order to synchronize the adjustment of each convergent piece, a complex synchronization mechanism is designed, the load is large, the adjustment efficiency is low, and the adjustment of the convergent piece is hysteresis, which makes the adjustment of the throat area of ​​the nozzle lag behind, limiting the engine performance improvement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aero-engine jet pipe throat area adjusting mechanism
  • Aero-engine jet pipe throat area adjusting mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028]In order to make the technical solutions and advantages of the present application, the technical solutions of the present application will be further clarified, and the specific embodiments described herein will be appreciated that the specific embodiments described herein are only part of the present application. EXAMPLES, which is intended to explain the present application, not the limitation of the present application. It should be noted that in order to facilitate the description, only the portion related to the present application is shown, and other related portions can be referred to usual design, in the case of unlafred, the techniques in the present application and the embodiments Features can be combined with each other to obtain a new embodiment.

[0029]Moreover, unless otherwise defined, the technical terms or scientific terms used in this application description should be generally meanings that the art will appreciate the general artper of the present application...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of aero-engine jet pipe throat area adjusting design, and particularly relates to an aero-engine jet pipe throat area adjusting mechanism. The mechanism comprises: a plurality of supporting beams, wherein the supporting beams are used for being connected to the outer wall of a jet pipe connecting cylinder and distributed in the circumferential direction; a plurality of rocker arms, wherein each rocker arm is correspondingly hinged to one supporting beam; a plurality of pull rods, wherein one end of each pull rod is correspondingly hinged to one rocker arm, and the other end of each pull rod is correspondingly hinged to the outer wall of one convergence piece; and a plurality of actuating cylinders, wherein a cylinder body of each actuating cylinder is used for being hinged to the outer wall of a jet pipe connecting cylinder, and a piston rod is correspondingly hinged to one rocker arm so as to drive the corresponding rocker arm to rotate around the hinged part of the rocker arm and the corresponding supporting beam, so that the corresponding convergence piece is driven to move through the corresponding pull rod, and the throat area of a jet pipe is adjusted.

Description

Technical field[0001]The present application belongs to the technical field of avionics nozzle, and more particularly to an aviation engine nozzle larynet area regulating mechanism.Background technique[0002]The nozzle is an important part of the aerospace engine to discharge the body after high temperature, high pressure gas expansion, resulting in engine thrust, which mainly includes: nozzle connection, plurality of convergent sheets, multiple expansion sheets, where At one end of each of the convergent sheets hinged to the outlet end of the nozzle connection, in the circumferential distribution, the adjacent convergence sheet is sealed between the contact, constitute the air-forward size of the nozzle convergence section, and the radial dimension of the nozzle convergence section is away from the nozzle The connection barrier is gradually contracted, constitutes the nozzle throat; one end of each expanded sheet corresponds to the other end of one convergence sheet, and the adjacen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F02K1/15F02K1/82F02K1/78
CPCF02K1/15F02K1/78F02K1/82
Inventor 王殿磊周东旭丛明辉
Owner AECC SHENYANG ENGINE RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap