Solid-liquid hybrid engine and aircraft

Abstract

The invention is applicable to the technical field of aircraft power, and provides a solid-liquid hybrid engine and an aircraft. A nozzle; a combustion chamber; a propellant; a gas tank; the oxidant storage tank is connected with the gas storage tank through a first pipeline; the oxidant nozzles are connected with the oxidant storage tank; the solid fuel storage tank is provided with an inner cavity, an extrusion plate dividing the inner cavity into a fuel cavity and an air cavity is movably arranged in the solid fuel storage tank, solid fuel is arranged in the fuel cavity and is close to the combustion chamber, and the air cavity is connected with the gas storage tank through a second pipeline; the multiple fuel nozzles are distributed in the solid fuel storage box in an array mode and communicate with the fuel cavity. According to the solid-liquid mixing engine, the heat feedback principle of the combustion chamber is ingeniously utilized to achieve accurate adjustment of the flow of solid fuel, the amount of the solid fuel sprayed out of the fuel nozzle and the supply amount of an oxidizing agent are in a proper chemical ratio all the time, the energy generated by combustion and the utilization efficiency of the fuel are improved, and waste of the fuel is reduced.

Description

technical field [0001] The invention relates to the technical field of aircraft power, in particular to a solid-liquid hybrid engine and an aircraft. Background technique [0002] The engine of aircraft (such as rockets and missiles), as the main power source of aircraft, has always been a hot research topic in various countries. At present, the engines of aircraft with many practical applications can be divided into three categories: solid engines, liquid engines and solid-liquid hybrid engines. Among them, the solid-liquid hybrid engine has been the focus of research in recent years because it takes into account the advantages of the liquid engine with high specific impulse, adjustable thrust, multiple shutdowns and starts, and the solid engine is easy to store, simple in structure, and high in reliability. However, the solid-liquid hybrid rocket engine also has the problem that it is difficult to match the combustion rate of solid fuel and the supply of oxidant, resultin...

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Problems solved by technology

[0004] The invention provides a solid-liquid hybrid engine, aiming to solve the problem that the combustion rate of the solid fuel in the prior art solid-liquid hybrid engine does not match the supply of oxidant, and cannot achieve a chemically proper ratio, resulting in low energy generation and the engine running out of power. The problem of large fuel surplus and serious fuel waste

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