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

Piston type pulse detonation engine

A pulse detonation, engine technology, applied in mechanical equipment, intermittent injection devices, etc., to achieve the effect of being conducive to heat dissipation, increasing intake pressure, and enhancing convective heat transfer intensity

Inactive Publication Date: 2019-07-16
NORTHWESTERN POLYTECHNICAL UNIV
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve a series of problems such as pressure reverse transmission and energy utilization of the self-breathing pulse detonation engine, the present invention proposes a design scheme of a piston type pulse detonation engine

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
  • Piston type pulse detonation engine
  • Piston type pulse detonation engine
  • Piston type pulse detonation engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and the specific implementation process.

[0023] see figure 1 and figure 2 , The detonation combustion device is evenly distributed at equal angles based on the central axis, the transmission mechanism is installed in the detonation device, and the fan assembly is located at the central axis of the entire system, fixed and restrained by the supporting structure. Part of the energy generated by the detonation combustion device generates thrust by propagating downstream, and the other part propagates upstream and acts on the transmission device. The transmission device drives the fan in the fan assembly to rotate at high speed to generate thrust and improve the heat dissipation capacity of the combustion device. The combustion device, transmission mechanism and fan assembly are fixed and restrained, and the fairing plays the role of rectifying and forming the outer cover...

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 provides a piston type pulse detonation engine. The piston type pulse detonation engine comprises a fairing, a detonation combustion device, a fan assembly, a transmission mechanism anda supporting structure, wherein one part of energy generated by the detonation combustion device is transmitted downstream to form thrust, and the other part of the energy is transmitted upstream to act on a transmission device; the transmission device drives a fan in the fan assembly to rapidly rotate to produce mechanical energy, the energy utilization rate and thrust of a whole engine system are increased, and energy back transmission during detonation combustion is effectively inhibited. The supporting structure achieves the fixing and constraint effects on the detonation combustion device, the fan assembly and the transmission mechanism. The fairing achieves the rectifying and external duct forming effects. Through the piston type pulse detonation engine, a series of problems existingin pressure back transmission, energy utilization and the like of an existing self-priming pulse detonation engine are effectively solved. The piston type pulse detonation engine is suitable for thefield of detonation propulsion.

Description

technical field [0001] The invention relates to the technical field of pulse detonation propulsion, in particular to a piston type pulse detonation engine. Background technique [0002] A Pulse Detonation Engine (PDE) is an engine that uses periodic detonation combustion to generate thrust. Compared with the isobaric combustion of the traditional aviation jet engine, the thermodynamic process of the pulse detonation engine is similar to the isovolumic cycle, which has higher thermal efficiency. Moreover, pulse detonation combustion eliminates complicated rotating mechanisms such as turbines and compressors, so the structural complexity and weight are greatly reduced, and the thrust-to-weight ratio can be greatly improved. Due to these excellent properties and potential advantages, detonation combustion has been researched and discussed by many scholars at home and abroad. [0003] Detonation combustion has great theoretical advantages. However, the application of detonatio...

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): F02K7/02
CPCF02K7/02
Inventor 范玮夏壹斌郑家炜迟烨青赵明皓王之声
Owner NORTHWESTERN POLYTECHNICAL UNIV
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