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US 4,300,699 AGranted
Fuel tank for motor vehicles
AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorSigmund Anhegger
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AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorSigmund Anhegger
Estimating the term…
A fuel tank for motor vehicles of the type having a filler neck, a fuel tank vent line and a receptacle for insertion of a pump nozzle connected therein is improved by constructing the receptacle so as to at least partially surround a pump nozzle inserted therein in close proximity thereto and by having the receptacle create a hollow space in conjunction with a wall of the filler neck that is closed on a side facing into the fuel tank but has openings on an opposite side communicating outwardly from the tank, the fuel tank vent line terminating in the hollow space. In accordance with the above concept, preferred embodiments of the invention enable air vented by the vent line to pass directly into the filler neck upstream of an outlet of the pump nozzle so that entrainment of fuel particles in air vented therefrom, including associated splattering thereof, is effectively precluded.
In a fuel tank for motor vehicles of the type having a filler neck, a fuel tank vent line and a receptacle for insertion of a pump nozzle connected therein, the improvement wherein the receptacle is constructed to at least partially surround a pump nozzle inserted into said filler neck in close proximity thereto, said receptacle comprises an insert which delimits a hollow space between sides of said insert and a wall portion of said filler neck, said hollow space being closed except for openings communicating outwardly from said hollow space in a direction away from said fuel tank and said fuel tank vent line which terminates in said hollow space, whereby air vented by said vent line is directed into said filler neck upstream of an outlet of said pump nozzle inserted into the filler neck.
Dependencies are inferred from the claim text.