Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A lobe-type backward step structure, a lobe-type concave cavity device and a supplementary combustion chamber

A supplementary combustion chamber and wave lobe technology, applied in combustion chambers, continuous combustion chambers, combustion methods, etc., can solve the problems of slow shear layer development, poor air mixing effect, small flame propagation range, etc., and achieve increased quality Effect of exchange rate, increased turbulence, increased residence time

Active Publication Date: 2022-05-13
NAT UNIV OF DEFENSE TECH
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for solid rocket scramjet engines, mixing has a greater impact on its performance. Due to the compressibility of supersonic airflow, the shear layer of the device develops slowly. Therefore, the traditional concave cavity flame stabilizer has poor airflow mixing effect. , the problem of small flame spread range

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
  • A lobe-type backward step structure, a lobe-type concave cavity device and a supplementary combustion chamber
  • A lobe-type backward step structure, a lobe-type concave cavity device and a supplementary combustion chamber
  • A lobe-type backward step structure, a lobe-type concave cavity device and a supplementary combustion chamber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038]It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, in th...

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 discloses a lobe-type backward step structure, a lobe-type concave cavity device and a supplementary combustion chamber. The stepped structure includes several lobe grooves and backward steps interlacedly distributed along the span direction of the wall surface of the solid rocket supernatural ramjet; the lobe-type concave cavity device includes a concave cavity, a forward step, and the lobe-shaped backward step structure; The lobe-type backward step structure is arranged on the concave cavity at one end of the engine internal airflow upstream, and the forward step is arranged on the concave cavity at one end of the engine internal airflow downstream. By adopting the above-mentioned lobe-shaped concave cavity device, the flame can be effectively stabilized, and the mixed combustion of the fuel-rich gas and the incoming air in the supplementary combustion chamber can be enhanced, and at the same time, the simple structure is suitable for the solid rocket scramjet.

Description

technical field [0001] The invention relates to the technical field of solid rocket scramjet, in particular to a lobe-type backward step structure, a lobe-type concave cavity device and a supplementary combustion chamber. Background technique [0002] The solid rocket scramjet uses the fuel-rich gas produced by the gas generator to mix and burn with air to produce high-temperature gas, which is then expanded by the nozzle to generate thrust. Compared with liquid scramjet, it has the advantages of simple structure, low cost, short combat response time, good maneuverability and safety, and long storage time. Compared with solid fuel scramjet, it has the advantages of easy flow adjustment and no ignition The flame stability problem, the working process of the combustion chamber is less affected by the flow parameters, and the working time is long. Therefore, the solid rocket scramjet has a good application prospect. [0003] At present, the research on solid rocket scramjet at...

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 Patents(China)
IPC IPC(8): F23R3/58
CPCF23R3/58
Inventor 杨鹏年马立坤夏智勋陈斌斌冯云超赵翔李潮隆赵李北
Owner NAT UNIV OF DEFENSE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com