Regenerated cooling liquid oxygen methane torch igniter

A torch igniter, regenerative cooling technology, applied in machine/engine, rocket engine device, jet propulsion device, etc., can solve the problems of poor thermal protection performance and easy ablation of the igniter, and achieve the effect of improving easy ablation

Pending Publication Date: 2022-03-08
航天科工火箭技术有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This application provides a regenerative cooling liquid oxygen methane torch igniter, which solves the technical problems of easy ablation and poor thermal protection performance caused by violent combustion in the igniter in the related art

Method used

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  • Regenerated cooling liquid oxygen methane torch igniter
  • Regenerated cooling liquid oxygen methane torch igniter

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Embodiment Construction

[0022] The embodiment of the present application provides a regenerative cooling liquid oxygen methane torch igniter, which solves the technical problems of easy ablation and poor thermal protection performance caused by violent combustion in the igniter in the related art.

[0023] The technical solution in the embodiment of the present application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0024] A regenerative cooling liquid oxygen methane torch igniter, including an ignition tube, a methane shell and a regenerative cooling assembly, an ignition chamber is arranged in the ignition tube, a methane nozzle is arranged in the ignition tube, the methane shell is arranged outside the ignition tube, and a liquid methane shell is provided in the methane shell Inlet, the methane casing and the ignition tube are enclosed to form a methane cavity, the liquid methane inlet is connected to the methane cavity, the methane cavity is connected ...

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Abstract

The invention discloses a regenerative cooling liquid oxygen methane torch igniter, relates to the technical field of ignition devices, and solves the technical problems of ablation and poor thermal protection performance caused by severe combustion in the igniter in the related technology. The ignition tube is provided with a methane nozzle, the methane shell is arranged outside the ignition tube, a methane cavity is defined by the methane shell and the ignition tube, and the methane cavity is communicated with the ignition chamber through the methane nozzle; the regeneration cooling assembly is arranged in the methane cavity and arranged on the peripheral wall of the ignition tube, and a regeneration cooling channel is formed in the regeneration cooling assembly. By means of the scheme, during working, liquid methane flows in from the liquid methane inlet of the methane shell, passes through the methane cavity and the regeneration cooling assembly and enters the ignition chamber of the ignition tube through the methane nozzle, on one hand, the wall face of the high-temperature ignition tube is cooled, on the other hand, liquid fuel enters the ignition chamber at the high temperature, and energy regeneration is achieved; according to the scheme, the problems that a torch igniter is easy to ablate and difficult in thermal protection are solved.

Description

technical field [0001] The invention relates to the technical field of ignition devices, in particular to a regenerative cooling liquid oxygen methane torch igniter. Background technique [0002] Regarding the torch igniter, from the development experience of liquid oxygen methane and hydrogen-oxygen engine ignition technology, methane is more difficult to ignite than other low-temperature propellants, with longer ignition delay time and higher ignition energy requirements. Intense combustion in a limited space will heat the inner wall of the torch igniter to a higher temperature, and there are problems such as easy ablation of the inner wall of the igniter and poor thermal protection performance. Contents of the invention [0003] The application provides a regenerative cooling liquid oxygen methane torch igniter, which solves the technical problems of easy ablation and poor thermal protection performance caused by violent combustion in the igniter in the related art. ...

Claims

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Application Information

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IPC IPC(8): F02K9/95
CPCF02K9/95Y02E20/34
Inventor 邵艳姬威信刘鑫鹏孙晓伟张召磊
Owner 航天科工火箭技术有限公司
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