A solid-liquid ramjet combination engine

Abstract

The invention discloses a solid-liquid ram jet combined engine, which belongs to the technical field of aerospace power. The invention discloses a solid-liquid ramming combination engine, which comprises a high-pressure gas cylinder, a pressure reducer, a first valve, a liquid oxidant storage tank, a second valve, a nozzle, a combustion chamber and a nozzle pipe connected in sequence; the combustion chamber Including solid fuel, the engine also includes an intake port connected to the combustion chamber; compressed gas enters the liquid oxidant storage tank after passing through the pressure reducer and squeezes the liquid oxidant into the nozzle, and the liquid oxidant After being atomized, it enters the combustion chamber; the solid fuel and the oxidant are ignited and combusted, and the combustion products flow through the nozzle and are sprayed out. The solid-liquid ramjet combined engine controls the start and stop of solid fuel combustion by switching nozzles, can adjust the thrust of the engine in a wide range, has high safety, reduces the amount of oxidant storage, reduces the quality of the aircraft, and improves the performance of the aircraft.

Description

technical field [0001] The invention belongs to the technical field of aerospace power, in particular to the combination of a solid-liquid hybrid rocket engine and a ramjet, and relates to a solid-liquid ramjet combined engine. Background technique [0002] With the development of aerospace round-trip transportation platforms and deep space exploration vehicles, higher requirements are put forward for aerospace power technology in terms of "full airspace, wide speed range, intelligence, and strong adaptation". Due to the bottleneck in the development of conventional power and its own shortcomings, rocket engines are not limited in airspace and speed domain, but their performance is relatively low; turbine engines have high performance, but can only work at lower Mach numbers; ramjets have a simple structure, High performance, but can only work under high speed conditions. Turbine engines and ramjets require oxygen in the air as an oxidant and cannot carry out spaceflight. ...

AI Technical Summary

Problems solved by technology

Combining the solid rocket motor and the ramjet motor into a solid rocket ramjet combination motor has the advantages of low cost and high reliability, but the thrust adjustment and multiple starts cannot be realized after the solid rocket motor starts working, and the controllability is low

Images