An integrated supply and regulation system of rbcc gas generator based on liquid oxygen

Abstract

The invention provides a liquid oxygen-based RBCC gas generator integrated supply and adjustment system, including a booster unit, a supply unit, an engine body and a connecting pipeline unit; the booster unit is used to boost the supply unit; the supply unit The connecting pipeline unit is connected with the engine body and supplies propellant to the engine body. The present invention overcomes the disadvantages of complex and bulky systems caused by separate supply of fuel oil for rocket thrust chambers and ram combustion chambers, and combines the respective advantages of liquid oxygen, hydrogen peroxide and kerosene propellants. The specific impulse and density specific impulse of the engine are high, satisfying Combined engine integrated fuel supply and integrated cooling structure design requirements, the system maintenance technology is mature, the system composition is relatively simple and easy to implement.

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. It combines the high thrust-to-weight ratio of the rocket engine and the high specific impulse of the ramjet engine. The full-speed field work capability 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 application of the engine; on ...

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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