Cross-medium dual-mode ramjet engine based on metal fuel and control method of thereof

Abstract

The invention provides a cross-medium dual-mode ramjet engine based on metal fuel and a control method thereof. A jettisonable ramjet air inlet passage is connected with the cross-medium ramjet engine through an explosive bolt, and a set of cross-medium ramjet engine jettisonable air inlet device is designed. In the air cruising stage, air enters an engine afterburning chamber through the ramjet air inlet passage to further react with burning-rich fuel gas so as to provide the thrust for a navigation body. Before the navigation body enters water, an air inlet passage valve is closed, the whole navigation body is kept sealed, the explosive bolt is ignited and detonated by electric sparks, and the air inlet passage is separated from an engine shell. After the air inlet passage is separated, the resistance borne by the navigation body in the water entering stage and the underwater navigation stage can be greatly reduced, and the reliability is improved. According to invention, the sealing problem of the whole navigation body after the air inlet passage is separated is solved, the stability of the cross-medium ramjet engine in the working process when the cross-medium ramjet engine crosses an air-water interface is improved, the resistance during underwater navigation is reduced, and the comprehensive performance of the engine is greatly improved.

Description

technical field [0001] The invention relates to a metal-fuel-based cross-medium dual-mode ramjet and a control method thereof, belonging to the technical field of cross-medium navigation power systems. Background technique [0002] The high-speed trans-medium vehicle can maintain supersonic flight in the air, and can maintain high-speed navigation underwater after entering the water. This working method can greatly improve the maneuverability and evasion of the vehicle, and enhance the adaptability of the vehicle to the complex working environment. It has broad application prospects in the future trans-medium aircraft. The cross-medium power system is the key to realize cross-medium navigation. Therefore, the study of a new type of trans-medium power system integrating air and underwater power devices is of great significance to the development of future cross-medium navigation. [0003] The high-speed cross-medium vehicle is a new concept vehicle that combines the charact...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that during the deformation process of the trans-medium power system, the existence of four external pressure inlets on the side will greatly reduce the reliability of the vehicle during the water entry stage and the underwater navigation stage, the present invention provides a trans-media power system based on metal fuel. Dual-mode ramjet engine and its control method

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