Supersonic velocity detonation engine and propelling system thereof

Abstract

The invention discloses a propelling system. The propelling system comprises an air inlet passage and a burning chamber; and a slope assembly used for guiding oblique detonation waves is installed in the burning chamber and comprises a sloping plate used for changing incoming flow directions, and the oblique angle of the sloping plate can be adjusted. According to the propelling system provided by the invention, by arranging the sloping plate in the slope assembly into an angle-adjustable sloping plate, when the flow velocities of incoming flows are different, the incoming flows with different flow velocities can be adapted by adjusting the oblique angle of the sloping plate, incoming flow detonation is ensured to be smoothly conducted, induced oblique detonation waves are prevented from forward passing, and using reliability of the engine is improved. The invention further discloses a supersonic velocity detonation engine including the propelling system.

Description

technical field [0001] The invention relates to the field of detonation engine equipment, in particular to a propulsion system. In addition, the present invention also relates to a supersonic detonation engine comprising the above propulsion system. Background technique [0002] With the development of hypersonic vehicles, the efficiency of the propulsion system has become one of the bottlenecks restricting the further improvement of engine thrust, while the detonation combustion thermodynamic cycle has high efficiency and fast heat release, and the supersonic propulsion system based on detonation combustion has a compact layout and a simple structure , therefore, detonation-based engines can be used as a potential solution for hypersonic propulsion systems. [0003] In the prior art, under hypersonic conditions, the detonation combustor organizes combustion through slope-induced detonation. In the integrated supersonic detonation engine, the fuel is injected into the precu...

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Problems solved by technology

[0004] However, since the existing detonation-based engine considers the use of a slope with a fixed angle to induce the formation of detonation waves to organize detonation combustion, when the incoming flow conditions change, the slope angle is fixed, and the combustion wave surface will be congested so that the induced oblique explosion Before the shock wave

[0005] At the same time, in the propulsion system in the prior art, the combustion chamber and the expansion nozzle are arranged separately. Since the combustion chamber needs to mix fuel, the length of the combustion chamber is generally long, resulting in a large volume of the entire propulsion system and a complex structure of the engine.

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