Chamber structure

Details Chamber structure Chamber structure

1998-11-24

2000-08-29

Rivell, John

Fluid handling

Systems

Plural tanks or compartments connected for serial flow

137576, 123514, B60K 1506, F02M 3714

Patent

active

061092991

ABSTRACT:
A chamber structure is provided which is able to flow down fuel smoothly at a desired flow rate. A chamber main body is fixed onto an inner bottom 1a of a fuel tank of a vehicle, and a suction port of a fuel pump is inserted into an inside of the chamber main body. A through hole is formed in a peripheral wall of the chamber main body. A fuel tank side through hole for connecting an inside of the fuel tank and a negative pressure chamber being connected to the first through hole is arranged in a vicinity of the inner bottom of the fuel tank. An inlet port for passing return fuel into the inside of the fuel tank is faced to the negative pressure chamber. A recirculation funnel which has an upper end opening directed to the inside of the chamber main body at a position lower than an upper edge of the chamber main body is formed to extend upward from the negative pressure chamber.
A peripheral length of the upper end opening of the recirculation funnel is set longer than that of the lower edge opening of the recirculation funnel directed to the negative pressure chamber.

REFERENCES:
patent: 4503885 (1985-03-01), Hall
patent: 4842006 (1989-06-01), Scheurenbrand et al.
patent: 4886031 (1989-12-01), Scheurenbrand et al.
patent: 4899784 (1990-02-01), Woodgate et al.
patent: 5029611 (1991-07-01), Sasaki
patent: 5070849 (1991-12-01), Rich et al.
patent: 5111844 (1992-05-01), Emmert et al.
patent: 5341842 (1994-08-01), Chih et al.
patent: 5396872 (1995-03-01), Ruger et al.
patent: 5941279 (1999-08-01), Frank et al.

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