Solid-liquid scramjet engine

Abstract

The invention discloses a solid-liquid scramjet engine, and belongs to the technical field of engines. The engine comprises an air inlet channel, a combustion chamber, a tail spray pipe, a fuel gas generator, an oil tank system, a control system and the like. The oil tank system comprises a high-pressure gas cylinder, a pressure reducing valve, a safety valve, fuel oil, an oil filter, a leather bag and the like, and the control system provides fuel oil flow meeting requirements for the scramjet engine according to set requirements. The fuel gas generator is mainly composed of a heat insulation combustion chamber, a wrapped grain, a long tail pipe spray pipe component and an igniter. The fuel gas generator is fixedly arranged in the oil tank system, and a long tail pipe of the fuel gas generator penetrates through the head portion of the combustion chamber and stretches into the combustion chamber. The solid-liquid scramjet engine can keep the advantages that the specific impulse of the liquid fuel scramjet engine is high, and the solid fuel scramjet engine is not prone to being shut down under a large attack angle, and meanwhile the defects that the liquid scramjet engine is prone to being shut down under the large attack angle, the thrust of the solid fuel scramjet engine is hard to adjust, and the specific impulse is low are overcome.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a ramjet engine. Background technique [0002] In order to realize long-distance, high-performance, high-Mach number flight, a long-distance, high-speed aircraft suitable for large maneuvering flight is required. This kind of aircraft can take off from the platform of the aircraft and the ground, and can fly at a supersonic speed for a long distance, and can perform large maneuvering flight. [0003] For aircraft, it is necessary to adapt to different flight trajectories and fly under different angles of attack. To meet this requirement, the performance level of the aircraft propulsion system must be improved accordingly, because it is an important technical basis reflecting the performance of the aircraft. A range of mission parameters such as vehicle speed, altitude, range and maneuverability play a key role. Future aircraft will put forward higher requirements in...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is exactly in order to overcome the above-mentioned shortcoming that existing ramjet exists, has proposed solid-liquid ramjet, can keep liquid fuel ramjet high specific impulse and the advantage that solid fuel ramjet is difficult to flameout under high angle of attack, overcomes at the same time Eliminates the shortcomings of liquid ramjet engines that are prone to flameout at high angles of attack, solid fuel ramjet thrust that is difficult to adjust, and low specific impulse

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