Fuel tank

摘要

The invention relates to a fuel tank having at least one filler pipe (2) enclosing a refueling duct (13), at least one operational venting valve (11), at least one refueling venting valve (8) and at least one venting line (9), which is connected to a filler head (3) of the filler pipe (2). The filler head (3) comprises a valve, which when refueling closes a flow path from the venting line (9) into the refueling duct (13). One of outstanding features of the fuel tank is that the venting line (9) is embodied as a collective venting line for the refueling and operational venting and that in any switching position of the valve it communicates with a downstream fuel vapor filter (10) connected to the filler head (3).

主权项

1. Fuel tank comprising:
at least one filler pipe enclosing a refueling duct, at least one operational venting valve, at least one refueling venting valve and at least one venting line, which is connected to a filler head of the filler pipe, the filler head having at least one switching valve, which is switchable by initiating the refueling process and which, in a first switching position as a refueling position, the switching valve is configured to close a flow path from the venting line into the refueling duct and, in a second switching position as a operational position, the switching valve is configured to open the flow path from the venting line into the refueling duct, wherein the venting line is a collective venting line comprising a refueling venting line when the at least one switching valve is in the first switching position and an operational venting line when the at least one switching valve is in the second switching position, and wherein, in either the first switching position or the second switching position of the switching valve, the collective venting line remains open to a flow of fuel vapors from the fuel tank to a downstream fuel vapor filter connected to the filler head.