Multitube pulse detonation combustion chamber communicated with jet deflector

A technology of pulse detonation and detonation combustion, which is applied to machines/engines, jet propulsion devices, rocket engine devices, etc., can solve the problems of hindering detonation frequency, unstable performance, and high-power ignition and detonation devices, etc. Avoid premature ignition and continuous combustion, improve cycle efficiency, and increase the effect of operating frequency

Inactive Publication Date: 2010-06-02
周林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The detonator itself is a complex pulse detonation rocket engine system, which is also inseparable from the electric ignition system and independent gas isolation system, so the pulse detonation engine using the detonator is more complicated
[0006] The second is the resonant cavity pulse detonation system of Russian V.A.Levin et al. The fuel and part of the oxidant enter the pre-combustion chamber and discharge the fuel-rich high-temperature gas through isobaric combustion. After mixing with other oxidants, they enter the resonant cavity through a supersonic nozzle to form a so-called High-frequency detonation, which is actually a hybrid burner, has not been abl

Method used

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  • Multitube pulse detonation combustion chamber communicated with jet deflector
  • Multitube pulse detonation combustion chamber communicated with jet deflector
  • Multitube pulse detonation combustion chamber communicated with jet deflector

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Embodiment 1: (see attached Figure 1.3 ) A detonation transponder 10 connects two sets of detonation units 11 side by side through its two connecting pipes 3 to form a group, and a detonation transponder 10 is located in the detonation chamber of the two parallel detonation units 11 Near the outlet 8, each connecting pipe 3 enters the inner chamber of each set of detonation units 11 from the vicinity of the outlet 8 of the downstream detonation chamber of the two sets of detonation units 11, and an ignition and detonation device 9 is installed on the right side of the set of detonation units. In the detonation chamber 7 of the shock unit 11, the detonation chamber outlet 8 of every set of detonation units 11 is all communicated with the outside world, and the cross-sectional area of ​​the connecting pipe 3 in the same cross section is 20% of the detonation unit 11 cross-sectional area.

[0047] Before starting the detonation, the main propellant air enters the detonati...

Embodiment 2

[0049] Embodiment 2: (see attached Figure 2.1 ) Two sets of detonation units 11 are connected side by side to form a group by two detonation transponders 10 through their connecting pipes 3, and an ignition detonation device 9 is installed in the detonation chamber 7 of one set of detonation units 11, wherein A detonation transfer injector 10 is used for injecting the JP10 fuel of sub-propellant ethylene and atomization, and it is located near the detonation chamber outlet 8 of two sets of detonation units 11 side by side. The two detonation transfer injectors 10 Two connecting pipes 3 enter the inner cavity of each set of detonation units 11 from the vicinity of the detonation chamber outlet 8 located downstream of the two sets of detonation units 11, and the other detonation transfer injector 10 is used for injecting and filling the main propellant air, Near the entrance 6 of the detonation chamber of two sets of detonation units 11 juxtaposed, its propellant inlet 4 commun...

Embodiment 3：( pic 3)810311 1 ， 1 1179，118 and 。 1 10， 1 10，10311811，116，“6”103。 and Embodiment 2， 1 11，，，10， and 2 1 117，、。 1 1 。 Embodiment 4

[0050] Embodiment 3: (see attached image 3 ) Two sets of detonation units 11 are connected side by side to form a group by two detonation transponders 10 that are all located near the detonation chamber outlet 8 through their connecting pipes 3, and the detonation chamber 7 of one set of detonation units 11 is An ignition and detonation device 9 is installed inside, and the detonation chamber outlet 8 of each set of detonation unit 11 is all communicated with the outside world. One of the detonation injectors 10 is used to inject secondary propellant, and the other detonation injector 10 is used to inject and inject main propellant. The set of detonation units 11 near the outlet 8 of the downstream detonation chamber enters the inner cavity of each set of detonation units 11, and the original detonation chamber entrance 6 upstream of the inner cavities of the two sets of detonation units 11 is closed, and the "new detonation chamber The inlet 6" is equivalent to the two conn...

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PUM

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Abstract

The invention relates to a multitube pulse detonation combustion chamber communicated with a jet deflector, mainly comprising at least two detonation units, at least one detonation jet deflector and at least one ignition detonating device. Each detonation unit comprises a detonation unit shell and a detonation unit internal cavity, wherein the detonation unit internal cavity mainly comprises a detonation chamber inlet, a detonation chamber and a downstream detonation chamber outlet which are communicated; each detonation jet deflector mainly comprises a detonation jet deflector shell, a detonation jet deflector internal cavity, at least two communicating pipes respectively communicated with the detonation jet deflector internal cavities and at least one propelling agent inlet positioned in the detonation jet deflector; and the detonation jet deflector can temporarily store and transfer a certain quantity of the propelling agent and can also forcibly and alternately complete the propelling agent refilling and dopping and the detonating process of the detonation units by utilizing energy and a substance which are generated by detonation burning. The invention can ensure stable working performance of a pulse detonation motor and improve the cycle efficiency of the pulse detonation motor.

Description

1. Technical field: [0001] The invention relates to a pulse detonation engine and its operation method, in particular to a multi-tube pulse detonation combustion chamber connected with a detonation transponder. 2. Background technology: [0002] The detonation wave can propagate to the unburned mixture at a speed of several thousand meters per second, and the subsequent combustion process can be regarded as a constant volume combustion process with extremely high combustion efficiency. When the operating frequency of the pulse detonation engine reaches a high level, it can be considered to be able to generate stable thrust, which is generally required to reach above 100 Hz. How to improve the working frequency of the pulse detonation engine is the direction that research institutions are working on. NASA's ongoing Pulse Detonation Engine Technology (PDET) program, also known as the Transform Aerospace Vehicles program, is in its infancy. [0003] Whether it is a rocket pul...

Claims

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Application Information

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IPC IPC(8): F02K9/62
Inventor 周林周天宇
Owner 周林
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