Canister for vehicles and fuel supply system provided with the same

A fuel supply system comprising:

• a fuel tank connected to a refueling line so as to receive a fuel, exhausting an evaporation gas therein through an evaporation gas line, and supplying the fuel through a fuel supply line;
• an engine connected to the fuel supply line so as to receive the fuel from the fuel tank, and connected to an intake passage so as to receive an air;
• a purge line connected to the intake passage;
• and
• a canister provided with a housing to receive an activated carbon for absorbing the evaporation gas therein through the evaporation gas line, and comprises:
• an evaporation gas supply passage formed to the housing and fluid-connected to the evaporation gas line so as to receive the evaporation gas;
• an air passage connected to an air supply line so as to receive an air from the exterior of the housing;
• and
• a purge passage formed to the housing to be fluid-connected to the purge line, releasing the evaporation gas absorbed at the activated carbon according to a flow of the air received through the air passage, and supplying the evaporation gas to the intake passage,
• wherein the purge passage is provided with a first purge passage formed to the housing to directly fluid-connect the housing to the purge line and a second purge passage formed to the housing and having an end portion positioned in the first purge passage or the purge line so as to be fluid-connected to the purge line.