In-tank fuel reservoir with fuel vapor separation

Details In-tank fuel reservoir with fuel vapor separation In-tank fuel reservoir with fuel vapor separation

1988-06-02

1989-11-07

Hepperle, Stephen M.

Pumps

One fluid pumped by contact or entrainment with another

Jet pump with motive fluid generating pump

123510, 137566, 137576, 417 87, B60K 1502, F04F 502

Patent

active

048788163

ABSTRACT:
A fuel delivery system for automotive engine and like applications which comprises a canister for positioning within a fuel tank having a lower end with a fuel opening and an internal wall spaced from such lower end dividing the canister into upper and lower fuel chambers. An electric-motor fuel pump is positioned within the upper chamber, has a fuel inlet coupled to the lower chamber through the canister wall and a primary outlet for feeding fuel under pressure to an engine. A fluid conduit separate from the pump inlet extends through the upper and lower chamber-separating wall, with an inlet end being positioned within the lower chamber and an outlet end being positioned within the upper chamber. A secondary outlet from the pump supplies fuel under pressure through a nozzle to the fluid conduit for aspirating vapor and fuel through the fluid conduit into the upper chamber. Any vapors entrained in the fuel fed to the upper canister chamber are thus permitted to vent through the canister top.

REFERENCES:
patent: 2263296 (1941-11-01), Grise
patent: 2707021 (1955-04-01), Harris
patent: 2763281 (1956-09-01), Morgan
patent: 2953156 (1960-09-01), Bryant
patent: 4279232 (1981-07-01), Schuster et al.
patent: 4397333 (1983-08-01), Liba et al.
patent: 4546750 (1985-10-01), Brunell et al.
patent: 4596519 (1986-06-01), Tuckey

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