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A swirl torch igniter based on 3D printing

A torch igniter and 3D printing technology, applied in combustion methods, lighting and heating equipment, continuous combustion chambers, etc., can solve the problems of difficult miniaturization design, narrow adaptability to variable working conditions, and easy ablation of spark plug ends , to achieve the effect of solving thermal protection problems, shortening body length and prolonging gas residence time

Active Publication Date: 2021-12-03
XIAN AEROSPACE PROPULSION INST
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  • Abstract
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Problems solved by technology

[0009] In order to overcome the problems existing in the existing torch igniter such as low ignition reliability, easy ablation of the spark plug tip, narrow adaptability to variable working conditions, poor thermal protection performance, serious welding deformation, and difficulty in realizing miniaturized design, the present invention provides a A swirl torch igniter based on 3D printing

Method used

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  • A swirl torch igniter based on 3D printing
  • A swirl torch igniter based on 3D printing
  • A swirl torch igniter based on 3D printing

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Embodiment

[0049] Such as figure 1 , figure 2 As shown, the basic structure of the 3D printing-based swirl torch igniter of the present invention includes an electric spark plug rod 1, a torch ignition tube 2 and a copper sealing gasket 3;

[0050] The spark plug rod 1 and the torch ignition tube 2 are connected through threads, and rely on the copper sealing gasket 3 to realize high-pressure sealing;

[0051] The torch ignition tube 2 includes a head section 4, a body section 5, a throat nozzle section 6 and a tail section 7 integrally formed by 3D printing;

[0052] Such as figure 2 , 3 , 4, the head pipe section 4 includes a central hole 8, an oxidizer interface 9, an oxidant annular gas collection chamber 10, an oxidant nozzle 11, a fuel interface 12, an ignition fuel annular gas collection chamber 13, an ignition fuel nozzle 14 and a body pipe section 5. The chamber pressure measurement interface 15 connected to the front end;

[0053] The central hole 8 is opened axially alo...

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Abstract

The invention discloses a swirl torch igniter based on 3D printing, which includes an electric spark plug rod, a torch ignition tube, and a copper sealing gasket; the torch ignition tube includes a head section and a body section integrally formed by 3D printing , throat nozzle section and tail pipe section; its main working principle is: ignition and combustion in the ignition chamber in the head pipe section, secondary combustion in the secondary combustion chamber of the body pipe section, and three times mixing in the throat nozzle section Combustion, so that the ignition process is stable and the combustion process is sufficient, which greatly improves the reliability of the igniter's combustion work, and can form an oxidant swirl in the head pipe section to protect the electric spark plug rod, and form a swirl flow in the secondary combustion chamber The air film protection is formed on the body pipe section, the connection and fastening parts with the thrust chamber are reasonably designed, the shape and structure of the torch igniter are simplified, the miniaturization design of the torch igniter is realized, the process complexity and cost are reduced, and the production cycle is shortened .

Description

technical field [0001] The present invention relates to a torch igniter, in particular to a swirling flow torch igniter based on 3D printing, which can be applied to liquid oxygen methane engine ignition, high-performance attitude and orbit control propulsion power, or other combustion chambers that require miniaturization. Background technique [0002] It is difficult to control the transient start process of the liquid oxygen / methane engine, and the mechanism of the ignition process is complicated, which is one of the technical difficulties in the development of the liquid oxygen / methane engine. In order to quickly adapt to the development needs of liquid oxygen / methane engines, a lot of experimental research work has been done on ignition technology at home and abroad: the United States aims at the power development of the Altair lunar lander and the service module of the Orion spacecraft, mainly focusing on the LOX / LCH4 Two ignition methods, electric spark and glow plug,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23R3/28F23R3/38
CPCF23R3/283F23R3/286F23R3/38
Inventor 王勇陈宏玉李舒欣刘占一陈鹏飞杨尚荣周康
Owner XIAN AEROSPACE PROPULSION INST
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