| 摘要 |
A fuel pump of an LPI(Liquefied Petroleum Gas Injection) vehicle is provided to prevent the inflow of LPG fuel in the LPG tank into the pump chamber through the connecting hose, by opening the exhaust part of the connecting hose only when discharging the internal pressure of the connecting hose. A fuel pump of an LPI vehicle includes a connecting hose(80) interconnecting a pump chamber and an LPG tank. The connecting hose comprises an exhaust part(81) with two sides which elastically contact in order to seal the connecting hose and open when the pressure in the connecting hose is high in order to keep the pressure balance, and a buffer unit(82) which is flexibly deformed by the pressure difference.
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