摘要
针对一体化电动燃油泵的热源分布和传热作用机制,设计其双螺旋冷却壳体,并采用数值模拟研究双螺旋对电机散热效果的影响和电动燃油泵的最佳燃油分配比。对电动燃油泵电机—冷却壳体进行流固耦合数值模拟,获得流道内的温度场分布;计算不同工况燃油分配比的电动燃油泵,得到冷却壳体的温度和进出口压差的随燃油分配比变化情况。结果表明,双螺旋冷却壳体使电机温度场的温度分布更均匀;流通的燃油使电机定子温度降低,但同时也增加了燃油的消耗。
Aiming at the heat source distribution and heat transfer mechanism of the integrated electric fuel pump, designed the double spiral cooling shell. The optimum fuel distribution ratio of the pump, as well as the influence of double spiral on the heat dissipation of the motor in the pump, was studied by numerical simulation. Fluid-solid coupling numerical simulation on the cooling shell of electric fuel pump was carried out to obtain the temperature distribution in the flow passage. The temperature inside the cooling shell and the pressure difference across the shell were changed with calculating the fuel distribution ratio of the electric fuel pump under different conditions. The results show that, the temperature throughout the cooling shell is generally even. Higher fuel distribution ratio induces lower temperature of the motor stator and higher consumption of fuel across the cooling shell.
作者
魏仁凤
王彬
叶志锋
Wei Renfeng;Wang Bin;Ye Zhifeng(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Jiang Su Province Key Laboratory of Aerospace Power Systems,Nanjing University of Aeronautics and Astronau-tics,Nanjing 210016,China)
出处
《航空科学技术》
2018年第11期66-71,共6页
Aeronautical Science & Technology
基金
航空科学基金(2015ZB52017)
国家自然科学基金(51575257)~~
关键词
电动燃油泵
双螺旋流道
流固耦合
冷却壳体
燃油分配比
electric fuel pump
double spiral passage
fluid-solid coupling
fuel cooling shell
fuel distribution ratio
