Continuous rotation detonation ramjet engine capable of supplying oil and gas in radial direction

Abstract

The invention provides a continuous rotation detonation ramjet engine capable of supplying oil and gas in the radial direction, and belongs to the technical field of aero-engines, the continuous rotation detonation ramjet engine comprises an oxidant injection mandrel used for oxidant inflow, a fuel pressure stabilization cavity used for fuel pressure stabilization and a combustion chamber, and a pressure stabilization space is formed in the oxidant injection mandrel; a plurality of first gaps are evenly distributed in the oxidizing agent injection mandrel, oxidizing agents enter the combustion chamber through the first gaps, and a plurality of second gaps used for introducing fuel into the combustion chamber are evenly distributed in the radial direction of the fuel pressure stabilizing cavity. According to the ramjet engine, the feeding direction of fuel is changed into the radial direction, so that the fuel and an oxidizing agent are subjected to radial hedging in the combustion chamber, and good mixing is achieved; the oxidant and the fuel cavity are respectively provided with a pressure stabilizing structure, and gap flow channels which are uniformly distributed at 360 degrees also play a role in flow equalization; and the combustion chamber is self-cooled by adopting fuel required by the combustion chamber, so that stable work of the detonation combustion chamber in a long-time detonation state is realized, and the problem of long-time reliable work of the detonation ramjet engine is solved.

Description

technical field [0001] The invention belongs to the technical field of aero-engines, and in particular relates to a continuous rotary detonation ramjet engine for radially supplying oil and gas. Background technique [0002] The competition in the aerospace field is becoming more and more fierce, and the research on key innovative technologies in the aerospace field has attracted more and more attention from various countries. In recent years, with the continuous deepening of research on hypersonic vehicles and single-stage orbiting power systems, new continuous rotating detonation engine technology has been rapidly developed. Studies have shown that the propulsion technology based on detonation combustion can greatly reduce fuel consumption and greatly improve the specific impulse characteristics of the power plant. meaning. As a leading technology that can overtake on a curve, its comprehensive and in-depth research is more urgent. [0003] The continuous rotary detonat...

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Problems solved by technology

However, whether it is air film cooling or water cooling, additional cooling medium, pipelines and accessories are required, which is contrary to the compact layout and lightweight design of the engine required by cutting-edge technology

[0004] The current research on the continuous rotation detonation engine has achieved more results and accumulated more experience, but the fuel injection hole diameter of the current detonation combustion chamber is not adjustable, and the pressure is unstable. The working temperature of the combustion chamber is too high, exceeding 1500K. Generally, stainless steel materials cannot work for a long time, and the diameter of the fuel injection hole cannot be adjusted. Different sizes of injection holes require different parts to be processed correspondingly.

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