| 民机发动机驱动泵的长寿命设计技术 |
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| 引用本文： | 陈金华,郭生荣,卢岳良.民机发动机驱动泵的长寿命设计技术[J].液压与气动,2021,0(8):160-170. |
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| 作者姓名： | 陈金华 郭生荣 卢岳良 |
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| 作者单位： | 1.航空工业南京机电液压工程研究中心, 江苏南京 211106; 2.航空机电系统综合航空科技重点实验室, 江苏南京 211106 |
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| 摘 要： | 针对民用飞机特点,提出了民机发动机驱动泵长寿命设计技术。分析了入口内置涡轮增压泵、出口集成压力脉动衰减缓冲瓶、壳体回油腔设置主动抽油泵对发动机驱动泵寿命的影响,并进行了仿真分析和试验验证。结果表明:入口腔内置涡轮增压泵可将入口压力增加0.15 MPa,出口集成缓冲瓶可将液压泵压力脉动控制在额定输出压力±3%以内,且缓冲瓶容积越大,对压力脉动衰减越明显,壳体回油腔设置主动抽油的摆线齿轮泵可将液压泵壳体回油相对入口的温升控制到小于6 ℃,壳体回油温度甚至低于泵出口温度。
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| 关 键 词： | 民用飞机 发动机驱动泵 涡轮增压泵 压力脉动衰减 壳体回油泵 |
| 收稿时间： | 2021-02-22 |
Long Life Design Technology of Civil Aircraft Engine Driven Pump |
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| CHEN Jin-hua,GUO Sheng-rong,LU Yue-liang.Long Life Design Technology of Civil Aircraft Engine Driven Pump[J].Chinese Hydraulics & Pneumatics,2021,0(8):160-170. |
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| Authors: | CHEN Jin-hua GUO Sheng-rong LU Yue-liang |
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| Affiliation: | 1. AVIC Nanjing Engineering Institute of Aircraft Systems, Nanjing, Jiangsu 211106; 2. Aviation Science and Technology Key Laboratory of Aero Electromechanical System Integration, Nanjing, Jiangsu 211106 |
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| Abstract: | According to the characteristics of civil aircraft, a long life design of engine driven pump for civil aircraft is proposed. The influence of the inlet oil suction built-in turbo pump, the outlet integrated pressure pulsation attenuation buffer bottle, and case drain cavity pump on the life of the engine driven pump is analyzed. The simulation analysis and the verification test are carried out. The test results show that the inlet pressure can be increased by 0.15 MPa, and the outlet integrated buffer bottle can control the pressure pulsations of the hydraulic pump within ±3% of rated discharge pressure. The larger the volume of the buffer bottle, the more obvious the attenuation of the pressure pulsations. The case drain temperature rise relative to the inlet of the hydraulic pump can be controlled to less than 6 ℃ by the gear pump, and the case drain temperature is even lower than outlet temperature. |
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| Keywords: | civil aircraft engine driven pump turbo pump pressure pulsation attenuation case drain pump |
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