Fuel tank-filler pipe particularly for motor vehicles
AssigneeFord Motor Company
InventorsEgon Rump, Wolfgang Franzen
Life of this patent
Estimating the term…
Abstract
A fuel tank-filler neck is provided for avoiding the return of fuel from a fuel tank during the filling process. The fuel tank-filler neck is adapted to be disposed sloping upwards from the fuel tank at an oblique angle and comprises a filler pipe having an air vent in a lower portion of the filler pipe adapted to the disposed within the fuel tank; a mouth at the upper end of said filler pipe adapted to receive a fuel pump nozzle; a Venturi-type neck of reduced diameter extending the aforesaid lower portion of the filler pipe below the air vent; and an air vent pipe extending within the filler pipe from the mouth to the air vent.
Claims5
A fuel tank-filler neck for avoiding the return of fuel from a fuel tank during the filling process, said fuel tank-filler neck being adapted to be disposed sloping upwards from said fuel tank at an oblique angle, comprising a filler pipe, an air vent being provided in a lower portion of said filler pipe adapted to be disposed within said fuel tank;
- a mouth at an upper end of said filler pipe adapted to receive a fuel pump nozzle;
- a Venturi-type neck of reduced diameter extending said lower portion of said filler pipe below said air vent;
- and an air vent pipe extending within said filler pipe from said mouth to said air vent in said lower portion of said filler pipe.
Dependencies are inferred from the claim text.