Volume 31 Issue 9
Sep.  2016
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Article Navigation >  Journal of Aerospace Power  > 2016  >  31(9): 2073-2079
SHAO Lei, LIU Wei-hua, PAN Jun, LIU Wen-yi, FENG Shi-yu. Effect on working characteristic of fuel injection pump in aircrafts of temperature[J]. Journal of Aerospace Power, 2016, 31(9): 2073-2079. doi: 10.13224/j.cnki.jasp.2016.09.004
Citation: SHAO Lei, LIU Wei-hua, PAN Jun, LIU Wen-yi, FENG Shi-yu. Effect on working characteristic of fuel injection pump in aircrafts of temperature[J]. Journal of Aerospace Power, 2016, 31(9): 2073-2079. doi: 10.13224/j.cnki.jasp.2016.09.004
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Effect on working characteristic of fuel injection pump in aircrafts of temperature

doi: 10.13224/j.cnki.jasp.2016.09.004

  • 1. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;

  • 2. Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration, Nanjing Engineering Institute of Aircraft Systems, Jincheng, Aviation Industry Corporation of China, Nanjing 211106, China

  • Received Date: 2014-12-11
  • Publish Date: 2016-09-28
    Abstract
  • A mathematical model of the injection pump was set up and its working characteristic was simulated using numerical computation method, the experiment apparatus was constructed and RP-3 fuel was adopted as the working fluid to verify the validity of this model. The flow ratio under various operating pressures was calculated from -40 degree to 40 degree by employing RP-3 fuel and JET-A fuel as working fluids, respectively. Result shows that if the fuel's temperature is above 0 degree, the effect of the fuel temperature on the working characteristic of injection pumps can be ignored. However, with the decrease of the temperature, the deviation of the performance with that at standard temperature(20 degree) increases definitely, especially the pressure ratio is high. When the temperature is above 0 degree, the performance of injection pump using RP-3 fuel is slightly better than that using JET-A fuel, but if the temperature is extremely low, the performance using RP-3 fuel is much better than that using JET-A fuel. It can be concluded that when the temperature is low and the pressure ratio is high, the effect caused by the temperature on the performance of injection pump should be considered carefully.

     

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