Combustion flow stabilizing device of solid propellant and solid engine combustion generator

A solid propellant and solid engine technology, which is applied in jet propulsion devices, machines/engines, rocket motor devices, etc., can solve problems affecting the stability of solid engine thrust output, etc., to suppress the impact of erosion and combustion, ensure combustion speed, and improve The effect of stability

Active Publication Date: 2021-11-16
BEIJING MECHANICAL EQUIP INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Especially under micro-scale conditions, the erosion and combustion of the inner-porous solid propel

Method used

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  • Combustion flow stabilizing device of solid propellant and solid engine combustion generator
  • Combustion flow stabilizing device of solid propellant and solid engine combustion generator

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] Such as figure 1 with figure 2 As shown, the gas stabilizing device for solid propellant, the gas stabilizing device includes a gas guide channel 3, and a plurality of gas holes 3-1 are arranged in an array on the gas guide channel 3; wherein, the gas guide channel 3 is arranged in the inner hole of the solid propellant 2, and there is a guide gap 3-2 between the gas guide channel 3 and the inner hole wall of the solid propellant 2, and the solid propellant 2 burns The generated gas flows into the gas guide channel 3 through the guide gap 3 - 2 and the gas hole 3 - 1 and is guided to the nozzle of the solid motor through the gas guide channel 3 . A plurality of gas holes 3 - 1 are evenly arranged along the gas flow direction ...

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Abstract

The invention discloses a combustion flow stabilizing device of a solid propellant and a solid engine combustion generator. The combustion flow stabilizing device of the solid propellant comprises a fuel gas flow guide channel, and a plurality of fuel gas holes are arranged on the fuel gas flow guide channel in an array mode; wherein the fuel gas flow guide channel is arranged in an inner hole of the solid propellant, and a flow guide gap is formed between the fuel gas flow guide channel and the wall of the inner hole of the solid propellant; and fuel gas generated by combustion of the solid propellant flows into the fuel gas flow guide channel through the flow guide gap and the fuel gas holes and is guided to a spray pipe of the solid engine through the fuel gas flow guide channel. The fuel gas flow guide channel is arranged in the inner hole of the solid propellant, the fuel gas generated during combustion of the solid propellant is guided to the spray pipe of the solid engine through the fuel gas flow guide channel, the erosion combustion influence of the solid propellant can be effectively restrained, it is ensured that the combustion speed of the solid propellant is stable, and the thrust output stability of the solid engine can be improved.

Description

technical field [0001] The invention relates to the technical field of solid motors, in particular to a solid propellant combustion stabilizing device and a solid motor combustion generator. Background technique [0002] Solid rocket motors are widely used due to their simple structure and high reliability. In order to meet the stable thrust output requirements of solid motors, a certain configuration of inner-porous solid propellants is usually used. Restricted by its own structural characteristics, the inner-porous solid propellant often erodes and burns during the combustion process of the propellant, which disturbs the designed combustion law of the solid propellant, resulting in a large deviation between the actual thrust output and the theoretical value. Erosion combustion specifically refers to the influence of the gas flow state parallel to the solid propellant combustion surface on the charge burning rate. In general, erosive combustion results in an increase in t...

Claims

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Application Information

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IPC IPC(8): F02K9/26F02K9/34
CPCF02K9/26F02K9/34
Inventor 季朦许诺高辉李晨轩
Owner BEIJING MECHANICAL EQUIP INST
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