Porous single-column fuel supply structure for supersonic aircraft ramjet engine

Abstract

The invention provides a porous single-column fuel supply structure for a supersonic aircraft ramjet engine. The structure comprises a cylindrical structure and a base, wherein the cylindrical structure is composed of a porous outer shell and a hollow supporting rod, the porous outer shell is made of porous materials sintered by metal particles, the porous outer shell is wrapped around the top ofthe hollow supporting rod and is sintered into a whole cylindrical structure, the hollow supporting rod penetrates out of the base, an injection channel is longitudinally formed inside the hollow supporting rod, an injection port is formed in the bottom of the hollow supporting rod, and fuel enters the injection channel through the injection port and then is injected into a cavity of the cylindrical structure. According to the porous single-column fuel supply structure for the supersonic aircraft ramjet engine, the problem that a fuel supply structure, which is based on the central combustionstabilization technology, in a combustion chamber of the ramjet engine cannot be cooled is solved, the metal particle sintered porous single-column fuel supply structure for the supersonic aircraft ramjet engine is provided, the metal particle sintered porous single-column structure is adopted for fuel supply, and meanwhile, full-coverage sweat cooling of the structure is realized by utilizing thefuel.

Description

technical field [0001] The invention relates to a metal particle sintered porous single-column fuel supply structure for a ramjet engine of a supersonic aircraft, which is used in the ramjet engine of a supersonic aircraft to supply hydrocarbon fuel for a combustion chamber, and belongs to the technical field of ramjet. Background technique [0002] Supersonic aircraft is one of the key points of aircraft propulsion technology research in various countries in the world, and it is also one of the technical fields that are currently prioritized in the military development of various countries. The thermal protection system is an essential part of a high-speed sonic aircraft, which can ensure the normal operation of the aircraft in an extreme thermal environment. With the development of high-speed sonic aircraft, the maximum heat load faced by the aircraft has far exceeded the cooling capacity provided by traditional cooling technologies, especially the cooling of key component...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the fuel supply structure in the combustion chamber of the ramjet cannot be cooled based on the center-stabilized combustion technology, the present invention proposes a metal particle sintered porous single-column fuel supply structure for supersonic aircraft ramjet. The structure is fueled, and the fuel is used to achieve full-coverage sweat cooling of the structure

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