Shell structure of air-breathing stamping rotary knocking engine adopting liquid state fuel

Abstract

The invention relates to an air-breathing engine adopting a liquid state fuel, in particular to a shell structure of an air-breathing stamping rotary knocking engine adopting a liquid state fuel. Theinvention aims to solve the technical problem of quick atomization and relatively large evaporation difficulty in the prior art and provides the shell structure of the air-breathing stamping rotary knocking engine adopting the liquid state fuel. The structure comprises an engine outer shell and a premixed gas shell assembly which comprises an air inlet cone, an isolation section center body and acombustion chamber center body. The isolation section center body is connected to the engine outer shell through a main supporting rod; the air inlet cone is connected to the isolation section centerbody through a front supporting rod, and a circular seam-shaped air inlet channel is formed between the air inlet cone and the isolation section center body; the combustion chamber center body is connected to the isolation section center body through a back supporting rod, and a circular seam-shaped injection channel is formed between the combustion chamber center body and the isolation section center body; a fuel box and a nozzle are arranged in the air inlet cone; and a mixing chamber is arranged in the isolation section center body and the mixing chamber communicates to the nozzle.

Description

technical field

[0001] The present invention relates to an air-breathing engine using liquid fuel, in particular to a shell structure of an air-breathing ram rotary detonation engine using liquid fuel. The engine adopting this shell structure can operate within a wide range of Mach numbers. Reliable work, can be used as the power of drones, and can also be used in other equipment that requires high performance, low-cost air-breathing power. Background technique

[0002] Rotating detonation combustion is different from the isobaric combustion widely used in current engines. It is essentially a supersonic combustion process that achieves an extremely fast chemical reaction with a low entropy increase. It has a fast energy release rate (approximate isovolumic combustion ), high thermal cycle efficiency, etc. In addition, due to the self-supercharging nature of the detonation wave, a certain combustion supercharging ratio can be achieved, and the power system based on detonatio...

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