Basket type igniter of rotary solid rocket engine

A solid rocket and igniter technology, which is applied in rocket engine devices, machines/engines, mechanical equipment, etc., to achieve the effects of compact structure, good sealing performance and reliable ignition performance

Pending Publication Date: 2020-07-10
XIAN MODERN CHEM RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a rotating solid rocket motor basket igniter to solve the technical problem of how to improve the anti-ablation ability of the basket igniter

Method used

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  • Basket type igniter of rotary solid rocket engine
  • Basket type igniter of rotary solid rocket engine

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Embodiment Construction

[0020] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Present embodiment proposes a kind of rotating solid rocket motor basket type igniter, and its structure is as follows figure 1 and 2 shown. The igniter mainly includes ignition top cover 1, top cover hard insulation layer 2, top cover soft insulation layer 3, front insulation sleeve 4, slotted screw 5, O-ring 6, rear insulation sleeve 7, putty 8, Igniter housing 9 and pilot cartridge 10 .

[0022] When assembling, first put the top cover hard heat insulation layer 2 into the ignition top cover 1, and then paste the top cover soft heat insulation layer 3 on the surface of the top cover hard heat insulation layer 2, so as to perform heat insulation and anti-burning on the ignition top cover 1 corrosion protecti...

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Abstract

The invention provides a basket type igniter of a rotary solid rocket engine. The basket type igniter comprises an ignition top cover, a top cover hard heat insulation layer, a top cover soft heat insulation layer, a front heat insulation sleeve, an O-shaped sealing ring, a rear heat insulation sleeve, an igniter shell and an ignition gunpowder box. The top cover hard heat insulation layer is placed in the ignition top cover, and the top cover soft heat insulation layer adheres to the top cover hard heat insulation layer. The ignition gunpowder box is connected with inner threads of the igniter shell, the igniter shell is provided with the O-shaped sealing ring in a sleeving manner, and the igniter shell is connected with the ignition top cover through outer threads of the igniter shell and is abutted to the top cover soft heat insulation layer. The front heat insulation sleeve adheres to an end face of the ignition top cover, and the rear heat insulation sleeve adheres to the front heat insulation sleeve. The basket type igniter is high in structural quality performance, compact in ignition structure, low in negative mass, good in sealing performance, good in manufacturability, high in reliability, capable of being applied to an ignition system of the rotary solid rocket engine, low in machining precision, convenient to install, high in connection reliability, reliable in ignition performance and capable of being used for the solid rocket engine which is ignited from the head.

Description

technical field [0001] The invention belongs to the technical field of solid rocket motors, in particular to a compact basket-type igniter for rotating solid rocket motors. Background technique [0002] Rotary solid rocket motors are often used in the upper stage of launch vehicles, which can increase the ballistic stability of launch vehicles. When the solid rocket motor is rotating, the flow field of the engine head changes, forming a vortex, which intensifies the ablation of the front head and the ignition device. Therefore, it is necessary to specially design the ignition device of the rotating solid rocket motor to ensure the anti-air flow of the ignition device. Scour ablative capability, while ignition device passive mass cannot be significantly increased. The basket-type ignition device has the advantages of simple structure and reliable ignition, and is widely used in the ignition of small and medium-sized solid rocket motors, but the basket-type ignition device ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K9/95F02K9/08
CPCF02K9/95F02K9/08
Inventor 龚建良李文凤邓哲张正泽庞维强边城
Owner XIAN MODERN CHEM RES INST
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