Novel high-pressure ratio large-flow turbocharging device for air turbine rockets

Abstract

The invention belongs to the technical field of air turbine rocket combined engines, and particularly relates to a novel high-pressure ratio large-flow turbocharging device for air turbine rockets. When the novel high-pressure ratio large-flow turbocharging device for the air turbine rockets works, the fuel gas generated by a fuel gas generator is discharged through a convergent-divergent type drilling hole inclined nozzle to drive a symmetrical blade type pure impact turbine to rotate, and a working wheel drives a compressor impeller to pressurize the incoming flow air in an axial air inlet;and then the air flows through a diffuser in a compressor shell assembly, and the direction of the air is changed from radial direction to axial direction by a turning section in the outer wall of thediffuser, and finally the air flow is rectified by a flow-guiding cascade in the diffuser. The air flow discharged from the turbine working wheel and the compressor flow-guiding cascade is mixed andcombusted behind the turbo charger. The novel high-pressure ratio large-flow turbocharging device for the air turbine rockets provides a core power device capable of generating large thrust and high specific impulse performance for the air turbine rocket combined engines.

Description

technical field [0001] The invention belongs to the technical field of an air turbine rocket (ATR) combined engine, and in particular relates to a novel high-pressure ratio and large-flow turbocharging device for an air turbine rocket. Background technique [0002] Driven by new mission requirements, the concept of propulsion system is constantly updated, and the combined power derived from traditional power plants has become a research hotspot in various countries. Among them, the air turbo rocket (Air Turbo Rocket, ATR) using solid propellants is considered to be an advanced air-breathing propulsion system that can be applied to aircraft. It can generate static thrust, and can realize low-thrust cruise, high-thrust acceleration and terminal attack through gas flow adjustment. It has the advantages of high specific impulse, wide working envelope, high technology maturity and wide thrust adjustment range. As the core component of the ATR engine, the gas turbocharger device ...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no precedent for the successful development of a gas turbocharging device suitable for ATR in China, especially for the emergence of engineering prototypes with large flow and high boosting ratio, and the development of a gas turbo pump supercharging device that can meet the needs of ATR Technical problems urgently needed to ensure reliable and stable operation of ATR

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