A Study for Numerical Analysis of Flow Variation on Low Pressure Fuel Pump Fluid using Excavator Engine

굴삭기 엔진용 저압연료펌프 유체의 유동변화에 대한 수치해석적 연구

Lee, IL Kwon;Kim, Seung Chul

  • Received : 2015.09.16
  • Accepted : 2015.11.20
  • Published : 2015.12.31


This paper is to study applying for numerical analysis method for flow field, velocity and pressure of fuel on the low pressure pump using excavator. The pressure distribution of fuel pump certified the linear variation according to rotation angle of rotor. Especially, it knew the fact that the pressure in rotation angle $40^{\circ}$ appeared high outlet and low inlet of fuel pump. Also, this range angle can seek the fact that the leakage flow and velocity are the most increasing. And the more rotor rotation of fuel pump, the more mean outlet flow rate increased in linear. Whenever the gap size decrease with rotor and housing, the discharge flow rate could seek the approaching 0.0712kg/s that consider with theory discharge flow rate calculated from displacement between rotor gear and idle gear.


excavator;gear pump;velocity;pressure;numerical analysis;discharge flow rate


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