외장형 LPI 연료시스템의 연료충전방법에 관한 연구

LPI Fuel Pump is equipment which is installed inside of cylinder, pressurize LPG fuel 5bar more than saturated vapor pressure to keep liquid phase of LPG throughout Fuel supply system. Installing fuel pump inside of cylinder is more reliable in aspect of fuel supply performance, but cost is expensive and maintenance is poor and dangerous. This paper shows the procedure of optimum design of new LPI fuel supply system which external fuel pump locates on the fuel feed line to improve maintenance quality and reduce cost of system. The purpose of this paper is to make better fuel supply performance of external LPI fuel pump than that of internal LPI fuel pump using Robust Design Method .