A ramjet-turbojet composite aeroengine

Abstract

The invention discloses a stamping-turbine air injection composite aero-engine and aims to solve the problems that the existing gas turbine engine is complicated in structure and limited in running speed range, and a ramjet engine cannot voluntarily start, cannot run at a low speed, is difficult in cooling, and has higher requirements for the high temperature resistance of a complete machine. The stamping-turbine air injection composite aero-engine comprises a stamping air inflow cone, an outer duct engine case, an inlet guide blade, a liquid oxygen regulating valve, a liquid nitrogen regulating valve, an inner duct engine case, a rectifying blade, a fuel oil regulating valve, a centrifugal compressor, a diffuser, a combustor, a concentric shaft, a worm wheel, an inner duct rectifying nozzle, a starting dynamo and the like. The stamping-turbine air injection composite aero-engine effectively utilizes the stamping effect and advantages of a turbojet engine, participates in precooling treatment, effectively solves the problems that the ramjet engine takes air in the starting and high-speed states, and the engine power is limited, is simple in structure, low in cost, high in efficiency, wide in running speed range and low in running speed of the complete machine, and has a better application prospect.

Description

Technical field [0001] The invention relates to the field of aviation, in particular to the field of aeroengines, in particular to a ram-turbojet composite aeroengine. As a low-cost ram-turbojet composite aeroengine, the invention has good application prospects. Background technique [0002] The aero engine is a highly complex and precise thermomechanical engine that provides the power required for flight. As the heart of the aircraft, the aero engine is known as the "flower of industry". It directly affects the performance, reliability and economy of the aircraft and is an important manifestation of a country's technological, industrial and national defense capabilities. Due to the high technical threshold of aero engines, only a few countries in the world, such as the United States, Russia, the United Kingdom, and France, can independently develop high-performance aero engines. [0003] According to different operating mechanisms, aero engines are divided into three categories:...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to address the existing gas turbine engine with complex structure and limited operating speed range, while the ramjet engine cannot start by itself, cannot run at low speed, is difficult to cool, and has high requirements for the high temperature resistance of the whole machine problem, a ramjet-turbojet composite aeroengine is provided

The invention effectively utilizes the advantages of the ramjet effect and the turbojet engine, adds pre-cooling treatment, and effectively solves the problems of ramjet startup, high-speed air intake, and engine power limitation

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