CAPLESS FUEL TANK FILLER PIPE ASSEMBLY

摘要

A capless fuel tank filler pipe assembly includes a filler pipe and a bulkhead disposed on the filler pipe. The bulkhead includes a nozzle receiving portion. A flapper door is pivotally disposed on the filler pipe, and is biased to a closed position. The flapper door is configured to compress an annular seal disposed between the bulkhead and the flapper door. The annular seal includes a liquid/vapor sealing material bonded to a substantially impermeable material. The substantially impermeable material substantially blocks emission of hydrocarbon molecules that permeate the liquid/vapor sealing material.