| 摘要 |
A system for dispensing liquid fuel to a motor vehicle fueling station in which fuel from an underground storage tank is pumped to the motor vehicle fueling station and in which the underground storage tank has a vertical riser pipe extending upwardly therefrom through which fuel is pumped, the system including a vessel having a partition therein dividing it into an upper and a lower zone, the vessel being removable attached to the riser pipe and providing closed communication between fuel pumped from the underground storage tank into the vessel upper zone, one or more filter cartridges positioned in the vessel upper zone and having communication through the filter cartridges into the vessel lower zone, a removable lid closing the vessel top, fuel flowing from the storage tank passing upwardly through the riser pipe and into the interior vessel upper zone, through the filter cartridge and into the vessel lower zone and through an outlet opening communicating with the vessel lower zone and through piping to a motor vehicle fueling system. In a preferred arrangement a vent pipe is provided in the interior of the upper zone, the vent pipe communicating by way of a vent valve to the riser pipe through an internal passageway in the vessel bottom so that gases within the interior of the vessel are conveyed to the underground storage tank. The integrated filtration unit is attachable as a complete unit to the upper end of the riser pipe extending from the underground storage tank.
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