Thermal insulation/explosion-proof integrated thermal protection structure for combustion chamber wall surface of rotary detonation engine

Abstract

The invention discloses a thermal insulation / explosion-proof integrated thermal protection structure for a combustion chamber wall surface of a rotary detonation engine. According to the thermal protection structure, an explosion-proof layer is arranged on the outer surface of the outer wall of an engine combustion chamber, an ablation-resistant protection layer, a thermal insulation layer and an ablation-resistant coating are sequentially arranged on the inner surface, the thermal protection structure is beneficial for improving the thermal insulation efficiency of the thermal protection structure of the combustion chamber wall surface, meanwhile, the combustion chamber wall surface structure is protected against impact damage of detonation waves, the thermal insulation and explosion-proof integrated protection effect is achieved, and the defects that in the prior art, a thermal protection structure for a combustion chamber wall surface of a rotary detonation engine is low in thermal insulation efficiency, large in structural weight and prone to being impacted by detonation waves to cause structural damage are overcome.

Description

technical field [0001] The invention relates to a wall surface protection structure of an engine combustion chamber, in particular to an integrated heat insulation / explosion-proof thermal protection structure for the wall surface of a rotary detonation engine combustion chamber, and belongs to the technical field of aeroengine cooling structure design and thermal protection. Background technique [0002] Rotating detonation engine (RDE) is a new concept engine. It uses the detonation wave to propagate continuously along the circumferential direction at one end of the annular combustion chamber, and the high-pressure detonation products are discharged at high speed from the other end to generate continuous thrust. Compared with traditional engines, it has the advantages of simple structure, low development cost, high specific impulse, and high thrust-to-weight ratio. It has a good development prospect and has gradually become a hot spot in the research and development of new...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an integrated thermal protection structure suitable for the wall of the rotary detonation engine combustion chamber for heat insulation / explosion protection, which helps to improve the heat insulation efficiency of the wall structure of the combustion chamber , while protecting the wall structure of the combustion chamber from the impact damage of the detonation wave, it has the integrated protection effect of heat insulation and explosion protection, and overcomes the low heat insulation efficiency, heavy structure weight, and easy Defects caused by structural damage caused by the impact of detonation waves

Images