某型航空发动机空中起动供油规律的研究

王兆铭; 王福德; 左伟; 王晨; 巴德纯

某型航空发动机空中起动供油规律的研究

1.
东北大学机械工程与自动化学院, 沈阳 110004
2.
中国航空工业集团公司沈阳发动机设计研究所, 沈阳 110015
3.
中国人民解放军驻沈阳黎明发动机制造公司军事代表室, 沈阳 110043
4.
大连理工大学能源与动力学院, 大连 116023

基金项目: 航空科学基金(2007ZB06001)

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出版历程
- 收稿日期: 2009-03-10
- 修回日期: 2010-03-18
- 刊出日期: 2010-05-28

Research on fuel supply control law of airstart for an aero-engine

1.
School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China
2.
Shenyang Aeroengine Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China
3.
Customer Representative of Shenyang LimingEngine Manufacturing Corporation, The Chinese People's Liberation Army, Shenyang 110043, China
4.
School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, China

摘要

摘要: 研究某型航空发动机空中起动困难问题,现有自动起动器没有考虑飞行高度对供油规律的影响,发动机在空中起动时存在富油状态.分析了影响起动供油规律的因素,在现有自动起动器结构基础上,设计了高空修正模块来补偿飞行高度对供油规律的影响.建立了自动起动器的数学模型,对改进的自动起动器进行了仿真分析和试验.仿真结果和试验验证了改进方案的可行性,与地面起动相比,空中起动的供油量随着飞行高度的增加而降低.采用改进的空中起动供油规律可补偿飞行高度对供油特性的影响,解决发动机空中起动时的富油状态问题.
- 航空发动机 /
- 燃油调节器 /
- 自动起动器 /
- 空中起动 /
- 供油规律
Abstract: The problem of airstart of an aero-engine was investigated. The enrichment in airstart of an aero-engine exists because the effects of flying height on fuel-feed characteristics are not considered for the original selfstarter. Various factors affecting the fuel-feed characteristics were investigated. A high altitude compensator was added to the original selfstarter to compensate the effects of flying height on fuel-feed characteristics. The mathematical models of original and improved selfstarters were built respectively. The simulations and tests verify the feasibility of the improved selfstarter,e.g.:airstart fuel supply flow decreases as the altitude increases as compared with the ground starter. The improved selfstarter can compensate the effects of flying height on fuel-feed characteristics and resolve the problem of airstart enrichment.
- aero-engine /
- fuel control unit /
- selfstarter /
- airstart /
- fuel supply control law