Rotary knocking ramjet engine and hypersonic aircraft

Abstract

The invention discloses a rotary knocking ramjet engine and a hypersonic aircraft. The rotary knocking ramjet engine comprises an outer shell and further comprises a central cone, wherein the outer shell takes the shape of a hollow cylinder, and two ends of the hollow cylinder communicate with each other; the rear body of the central cone extends into the outer shell from the air inlet end of theouter shell and is connected with the outer shell; a flow guide channel used for the introduction of air into the outer shell is formed in a gap between the outer shell and the rear body; a knocking room and an exhaust pipe are formed in a cavity between the rear end surface of the rear body and the inner wall of the outer shell; the knocking room communicates with the flow guide channel; an nozzle of the exhaust spray pipe communicates with the exhaust spray pipe; a plurality of outer nozzles are processed on the outer wall of the outer shell, and two ends of each outer nozzle communicate with a fuel source and the flow guide channel correspondingly; and / or a plurality of inner nozzles are processed on the outer wall of the rear body, and two ends of each inner nozzle communicate with thefuel source and the flow guide channel correspondingly. According to the rotary knocking ramjet engine disclosed by the invention, the rotary knocking combustion organization capability is strong andthe flame combustion stability is high, so that the stable combustion of the rotary knocking of low-activity hydrocarbon fuels such as liquid kerosene and acetylene can be easier achieved.

Description

technical field [0001] The invention relates to the field of aero-engines, in particular to a rotary detonation ramjet engine. In addition, the present invention also relates to a hypersonic aircraft comprising the above-mentioned rotary detonation ramjet engine. Background technique [0002] Hypersonic aircraft is a strategic high-tech that achieves high-speed defense penetration, 2-hour global reach, and low-cost space entry. Its development will change the shape of future warfare. It is a new commanding height of aerospace technology in the 21st century. Its core is hypersonic propulsion technology. Continuous rotary detonation is a form of realization of detonation engine, which usually adopts an annular combustion chamber, only needs one ignition to work continuously, can provide stable thrust, and has broad application prospects. Recently, Liu Shijie, Wang Chao, etc. passed the direct-connection test (【Liu Shijie, Wang Chao, Jiang Luxin, Liu Weidong, Lin Zhiyong, Cont...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a rotary detonation ramjet and a hypersonic aircraft to solve the technical problems of the existing rotary detonation ramjet, which have poor combustion organization ability and poor engineering applicability of low-activity hydrocarbon fuel

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