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

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

123510, 137566, 137576, 417 76, 417 89, B60K 1502, F04F 502

Patent

active

048785180

ABSTRACT:
A fuel delivery systems 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 and has a fuel inlet, a primary fuel outlet for feeding high-volume fuel under pressure to an engine, and a secondary outlet for likewise supplying fuel under pressure at smaller volume than the primary outlet. A fluid conduit extends through the canister internal wall, and has an inlet end in the lower chamber and an outlet end positioned in the upper chamber. A nozzle couples the secondary pump outlet to the conduit for aspirating fuel through the conduit from the lower chamber to the upper chamber. Thus, any vapor collected in the lower chamber is entrained in aspirated fuel and fed to the upper chamber where it is free to vent to the fuel tank through the open upper end of the canister.

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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