Patent ID: 6857454

Claim:
An evaporated-fuel storage system comprising: a fuel tank having a filler tube extending upwards; a canister for adsorbing an evaporated fuel fed from the fuel tank; a first evaporated-fuel passage connecting the fuel tank to the canister; a second evaporated-fuel passage connecting the fuel tank to the canister or an intermediate portion of the first evaporated-fuel passage; a float valve adapted to close the first evaporated-fuel passage when a liquid surface in the fuel tank becomes a filled-up liquid surface; and a cut valve adapted to close the second evaporated-fuel passage when the liquid surface in the fuel tank becomes a predetermined liquid surface higher than the filled-up liquid surface, wherein a valve chamber of the float valve is disposed separately from the fuel tank above the fuel tank, and an upstream end of the first evaporated-fuel passage leading to the valve chamber opens at a location corresponding to the filled-up liquid surface in the fuel tank.