LPG vehicles applied LPi engine system, which directly inject LPG fuel, has been used fuel pump to supply liquid LPG fuel though fuel-rail. This study is the analysis results of fluid flow and pressure characteristic inner the fuel pump to analyze per...
LPG vehicles applied LPi engine system, which directly inject LPG fuel, has been used fuel pump to supply liquid LPG fuel though fuel-rail. This study is the analysis results of fluid flow and pressure characteristic inner the fuel pump to analyze performance of the turbine type fuel pump. Numerical analysis is used the commercial CFD code. The results of fluid flow showed the secondary circulatory flow inner the vane of impeller. This phenomenon by fast rotational impeller influence on the performance of the fuel pump. And the results of pressure distribution showed pressure drop inner the edge of the vane. Also the pressure change showed through the channel of impeller, and this results are conformed the experiment results. Therefore, change of various geometric parameter need to improve performance of the turbine type fuel pump.