Vent valve for a fuel tank

Details Vent valve for a fuel tank Vent valve for a fuel tank

2007-05-08

2007-05-08

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

C137S588000

Reexamination Certificate

active

11316690

ABSTRACT:
A compact venting valve for the fuel tank of a motor vehicle comprises a valve housing with at least one switchable element for providing at least two switching positions and with at least three connections, a first connection to the fuel tank or to a fuel vapor filter connected downstream thereof, a second connection to a filling pipe of a fuel tank and a third connection to atmosphere. The valve housing includes at least one first filter chamber enclosing a second fuel vapor filter, wherein a first switching position provides for operational venting of the fuel tank in which a flow path between the first and second connections is enabled and a second switching position provides for refuelling venting of the fuel tank in which a flow path between the first and second connections is enabled with the second fuel vapor filter being bypassed.

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