Patent ID: 8517198

Claim:
A vehicular fuel tank fuel filler orifice device provided with a fuel filler orifice in an upper wall of a vehicular fuel tank for storing ethanol fuel as fuel for an engine comprising: a fuel filler guide tube extending from the fuel filler orifice to a distal end extending within an interior of the fuel tank, said fuel filler guide tube having a predetermined diameter; a mounting plate secured on the distal end of the fuel filler guide tube and extending outwardly beyond the predetermined diameter of the fuel filler guide tube; a flame arrestor being secured to the mounting plate and having a predetermined diameter larger than the predetermined diameter of the fuel filler guide tube, said flame arrestor being made of a metal mesh and covering a lower opening of the fuel filler guide tube for allowing a flow of the fuel but preventing the entrance of flame, said flame arrestor being formed into a bowl shape having a depth that is smaller relative to the predetermined diameter of the flame arrestor; and a skirt having a proximal end secured to the mounting plate and a distal end extending within the interior of the fuel tank, said flame arrestor being secured to the mounting plate with the skirt extending downwardly to surround at least a portion of the flame arrestor; said mounting plate being connected to the distal end of the fuel filler guide tube, the mounting plate having a larger diameter than that of the fuel filler guide tube, and an outer peripheral end part of the flame arrestor is mounted on an outer peripheral end part of the mounting plate, the flame arrestor having a bowl shape with an open upper face.