초록 ▼

A sealing assembly is provided for use in a filler neck sized to receive a fuel-dispensing nozzle. The sealing assembly includes an elastic seal member between the filler neck and a fuel-dispensing nozzle and a seal retainer for clamping the seal member in the filler neck to define in the filler nec

A sealing assembly is provided for use in a filler neck sized to receive a fuel-dispensing nozzle. The sealing assembly includes an elastic seal member between the filler neck and a fuel-dispensing nozzle and a seal retainer for clamping the seal member in the filler neck to define in the filler neck an outer chamber communicable with the atmosphere and an inner chamber. The seal is configured to admit the fuel-dispensing nozzle into the inner chamber without coupling the inner and outer chambers in vapor communication. The sealing assembly partitions a fuel-conducting passageway in the filler neck to limit flow of vapors and gases through the passageway during dispensing of fuel into the filler neck and past the sealing assembly.

대표청구항 ▼

A filler neck seal assembly adapted to seal a fuel nozzle in a fuel filler neck comprising an elastic seal member having an annular fuel nozzle-sealing portion and an annular filler neck-mounting portion surrounding the annular fuel nozzle-sealing portion in radially outwardly spaced relation, a sea

A filler neck seal assembly adapted to seal a fuel nozzle in a fuel filler neck comprising an elastic seal member having an annular fuel nozzle-sealing portion and an annular filler neck-mounting portion surrounding the annular fuel nozzle-sealing portion in radially outwardly spaced relation, a seal retainer including means adapted for engaging a filler neck containing the elastic seal member and means adapted for unyieldingly clamping the annular filler neck mounting portion of the elastic seal member to the filler neck to establish a fixed circumferentially extending liquid fuel and fuel vapor seal between the elastic seal member and the filler neck and adapted to also cantilever the annular fuel nozzle-sealing portion for movement relative to the clamped filler neck-mounting portion in response to engagement with a fuel nozzle during movement of the fuel nozzle in the filler neck, and wherein the annular fuel nozzle-sealing portion includes an annular, radially inwardly facing, perimeter end wall defining a nozzle-receiving aperture, and inclined annular outer sealing face adapted to face in an axially outwardly direction toward a mouth of the filler neck to engage the nozzle in sealing relation during insertion of the nozzle into the nozzle-receiving aperture, and an inclined annular inner sealing face adapted to face in an axially inwardly facing direction away from the filler neck mouth to engage the nozzle in sealing relation during withdrawal of the nozzle from the nozzle-receiving aperture, and the outer and inner sealing faces are interconnected by the annular, radially inwardly facing, perimeter end wall and diverge in a radially outwardly extending direction away from the perimeter end wall and toward the filler neck-mounting portion.