Multi-tube detonation lateral wave ignition device

An ignition device and transverse wave technology, applied in rocket engine devices, jet propulsion devices, intermittent jet devices, etc., can solve the problems of insufficient specific impulse, inability to keep up with the working frequency, difficulties, etc., and achieve the effect of shortening the length.

CN101858278BInactive Publication Date: 2012-08-29SHANGHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2012-08-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a multi-tube detonation lateral wave ignition device comprising a plurality of parallel detonation tubes, lateral flame tubes and flame check valve assemblies, wherein the lateral flame tubes are connected with the adjacent detonation tubes and form lateral flame channels of which the tails and the heads are communicated in a system, and the flame check valve assemblies are arranged in the lateral flame tubes. Not only flames in the upstream detonation tubes move to the exit of a spray tube, the branches of the flames also enter the lateral flame tubes, and lateral combustion waves in the tubes move to the adjacent downstream detonation tubes by the flame check valve assemblies to ignite premixed fuels in the downstream detonation tubes to realize combustion; the process is circulated in cycles among the detonation tubes to realize the deflagration to detonation transition (DDT) process of the ignition self-sustaining of a detonation tube system. The inventionhas simple structure, can meet the demands of high frequency and high-energy ignition and overcome the difficulties of continuous ignition and deflagration to detonation transition. The invention canbe used as the ignition realizing mode of a multi-tube pulse detonation engine.
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Description

technical field

[0001] The invention relates to a multi-tube detonation transverse wave ignition device. It can be used as an ignition device for a multi-tube pulse detonation engine, and can be used in the fields of power or aerospace. Background technique

[0002] The present invention arose out of the creation of a similar need for multi-tube pulse detonation engine ignition.

[0003] It is generally believed that the development of engines has roughly experienced two major historical stages. The first stage was before 1950, mainly the use of piston engines. In the second stage, after World War II, the turbo engine developed rapidly and has always occupied the dominant position. It has many variants, such as turbofan engine, turboprop engine, turboshaft engine, etc., but its core technology is compressor- Combination of turbines, i.e. gas turbines.

[0004] It was asked very early on whether there will be a follow-up model after the turbo engine has passed its peak per...

Examples

Embodiment Construction

[0030] Preferred embodiment of the present invention is described in detail as follows in conjunction with accompanying drawing: See figure 1 and figure 2 , the multi-tube detonation transverse wave ignition device comprises a plurality of parallel parallel detonation tubes 1, a transverse flame tube 2 and a flame check valve assembly 3, adjacent detonation tubes 1 are formed by a transverse flame tube near the entrance thereof 2 are connected; a flame check valve assembly 3 is arranged in the horizontal flame tube 2; each group of detonation tube 1, horizontal flame tube 2 and flame check valve assembly 3 is arranged in a chain and connected end to end. The premixed fuel that has been charged in the detonation tube 1 is ignited by the ignition device set near the entrance of the detonation tube 1 to generate an initial flame, and the flame propagates in two ways, one is to propagate toward the outlet nozzle of the detonation tube, To generate thrust, the other path passes t...