一种微型涡喷发动机快速起动独立供油点火系统

By designing independent fuel supply and oxygen replenishment units, the problem of unstable ignition during the start-up of micro turbojet engines has been solved, achieving rapid start-up and high-altitude stability, expanding application scenarios, and meeting the needs of in-flight start-up and multiple start-stop operations.

CN120667259BActive Publication Date: 2026-07-17西安觉天动力科技有限责任公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
西安觉天动力科技有限责任公司
Filing Date
2025-07-31
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing micro turbojet engines have strict requirements for air temperature and speed during the starting process, which results in low ignition head temperature and inability to ignite, unstable starting process, and inability to quickly restart at high altitudes or in the air, thus limiting their application scenarios.

Method used

It adopts an independent fuel supply unit and oxygen supply unit, including an independent fuel pump, an independent solenoid valve, an ignition atomizing nozzle, an oxygen supply tank and a jet ring. Through fuel mist injection and high-pressure oxygen supply, it ensures sufficient oxygen in the combustion chamber, achieving rapid ignition and stable combustion.

Benefits of technology

It has achieved rapid start-up and high-altitude stability of micro turbojet engines, expanded application scenarios, met the requirements of in-flight start-up and multiple start-stop operations, and improved the engine's compatibility and versatility.

✦ Generated by Eureka AI based on patent content.

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Abstract

本申请涉及一种微型涡喷发动机快速起动独立供油点火系统,其包括包括:控制单元,用于执行启动发动机指令;主供油单元,用于实现地面常规启动发动机;点火单元,用于点火;补氧单元,用于给发动机燃烧室补给供氧;以及独立供油单元,用于快速启动发动机;独立供油单元包括:独立油泵,独立于主供油单元进行供油工作;独立电磁阀,控制独立油泵的开启;点火雾化喷嘴,将独立油泵中供油雾化;当需要实现快速 / 空中启动 / 空中二次启动发动机时,需要主供油单元、点火单元、补氧单元以及独立供油单元同时启动。通过独立供油单元、点火单元、补氧单元可同时实现地面常规启动,地面快速启动、高空启动,空中熄火重启或者二次启动的效果。
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