Patent ID: 11933251
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Transport (Mechanical engineering)
Classification: CPC F  B | IPC F

Claim 13:
14. An apparatus comprising:
a filler neck adapted to receive a refueling nozzle that dispenses fuel into the filler neck;
a fuel tank that receives fuel from the filler neck through an inlet check valve, wherein the inlet check valve defines a vent opening having a diameter of between 1.4 mm and 1.8 mm in diameter;
a fuel limiting vent valve in the fuel tank;
a grade limit venting valve in the fuel tank;
a fuel vapor cannister that collects fuel vapor and selectively supplies fuel vapor to an intake manifold of a vehicle; and
a fuel vapor recirculation manifold that receives fuel vapor only from the fuel limiting vent valve in the fuel tank and the grade limit vent valve in the fuel tank, wherein the fuel vapor recirculation manifold supplies fuel vapor to the fuel vapor cannister.