The invention belongs to the field of engines, and particularly relates to an underwater gas-liquid two-phase ramjet engine based on phase change and a working method thereof.The underwater gas-liquid two-phase ramjet engine based on phase change comprises a liquid nitrogen injector, a diffusion cavity and a spraying cavity, the spraying cavity is of a gradually-shrunk structure, one end of an inlet of the spraying cavity communicates with the diffusion cavity, and the sectional area of the inlet of the spraying cavity is smaller than that of the diffusion cavity; a water inlet is formed in the diffusion cavity; the liquid nitrogen injector is used for injecting liquid nitrogen into the spraying cavity, and the range of the mass ratio of water entering from the water inlet to the liquid nitrogen injected by the liquid nitrogen injector is 1000-300000. The underwater gas-liquid two-phase ramjet engine based on phase change is a novel thrust driving mode based on phase change, and has the characteristics of high specific impulse, low energy consumption, cost saving and environmental protection.
本发明属于发动机领域,具体涉及到一种基于相变的水下气液两相冲压发动机及其工作方法,其中基于相变的水下气液两相冲压发动机包括液氮喷注器以及依次连通的扩压腔和喷腔;喷腔为渐缩型结构,且喷腔的入口一端与扩压腔连通,喷腔的入口截面面积小于扩压腔的截面面积;扩压腔内设置有入水口;液氮喷注器用于向喷腔内注入液氮,入水口进入的水与液氮喷注器注入的液氮的质量比范围为1000‑300000。本发明基于相变的水下气液两相冲压发动机为基于相变的新型推力驱动方式,具有高比冲、低耗能、节省成本环保特性。
Underwater gas-liquid two-phase ramjet engine based on phase change and working method of underwater gas-liquid two-phase ramjet engine
一种基于相变的水下气液两相冲压发动机及其工作方法
2025-02-07
Patent
Electronic Resource
Chinese
NTIS | 1965
Springer Verlag | 2021
|NTIS | 1979
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