RBCC fuel gas generator integrated supplying and adjusting system based on liquid oxygen

Abstract

The invention provides an RBCC fuel gas generator integrated supplying and adjusting system based on liquid oxygen. The system comprises a pressurization unit, a supply unit, an engine body and a connecting pipeline unit. The pressurization unit is used for conducting pressurization on the supply unit. The supply unit is connected with the engine body through the connecting pipeline unit, and supplies propellants to the engine body. According to the RBCC fuel gas generator integrated supplying and adjusting system based on the liquid oxygen, the defect that an original system is complex and large due to the fact that a rocket thrust chamber and a ramjet combustion chamber are independently supplied with fuel oil is overcome, the respective advantages of the liquid oxygen, hydrogen peroxide and kerosene propellants are combined, the engine specific impulse and density specific impulse are high, the requirement for the combined engine integrated fuel oil supply and integrated cooling structural design is met, the system using and maintaining technology is mature, the system composition is relatively simple, and implementation is easy.

Description

technical field [0001] The invention belongs to the field of mechanical engines and relates to an engine fuel system, in particular to an RBCC gas generator integrated supply and adjustment system suitable for long-time work and based on liquid oxygen. Background technique [0002] The Rocket Based Combined Cycle (RBCC) engine is an advanced propulsion system based on a reusable single-stage orbiting vehicle, which combines the high thrust-to-weight ratio of the rocket engine and the high specific impulse of the ramjet engine. The ability to work in the full airspace and full speed domain has been researched with the support of the General Armament Department. [0003] At present, the RBCC engine is mainly composed of the air inlet, the rocket thrust chamber, the ram combustion chamber, the tail nozzle, and the fuel supply and regulation system; The components are supplied separately. On the one hand, the system is complex and huge, which greatly restricts the engineering a...

AI Technical Summary

Problems solved by technology

[0003] At present, the RBCC engine is mainly composed of the air inlet, the rocket thrust chamber, the ram combustion chamber, the tail nozzle, and the fuel supply and regulation system; The components are supplied separately. On the one hand, the system is complex and huge, which greatly restricts the engineering application of the engine; on the other hand, for the combined engine, under the limited propellant flow rate, the cooling of the overall structure cannot be achieved by supplying it separately. , the cooling structure of the overall design must be considered, in this case, the use of an integrated fuel supply system is the only option

[0004] Therefore, there is an urgent need for an RBCC gas system that can overcome the separate fuel supply and regulation system of the existing combined engine rocket thrust chamber and ramjet combustion chamber, and solve the shortcomings of separate supply and regulation, complex systems, and inability to perform integrated cooling.

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