FUEL FILL SYSTEM WITH FUEL VAPOR RECIRCULATION

摘要

A fuel fill system includes a funnel (18, 70) having an inlet port (20) configured to receive a nozzle (22) from an external fuel source, a fuel filler tube (16) coupled to an outlet port (24) of the funnel (18, 70), and a vapor recirculation tube (30) coupled to the funnel. Fuel vapor entering the funnel (18, 70) from the vapor recirculation tube (30) is directed toward the outlet port (24) at a first angle less than 90° from a longitudinal axis (34) of the funnel (18, 70). The fuel vapor entering the funnel (18, 70) may also be directed at a second angle less than 90° from a line (50) tangent to an inner surface of the funnel (18, 70) at a point where fuel vapor enters the funnel. The second angle is in a plane perpendicular to the longitudinal axis (34) of the funnel (18, 70).