Venturi liquid evacuator system for maintaining clear vapor path

Details Venturi liquid evacuator system for maintaining clear vapor path Venturi liquid evacuator system for maintaining clear vapor path

1986-05-19

1987-08-18

Marcus, Stephen

Fluent material handling, with receiver or receiver coacting mea

Diverse fluid containing pressure filling systems involving...

Filling with exhausting the receiver

141 44, B65B 5714, B67D 506

Patent

active

046870334

ABSTRACT:
In a coaxial hose system for a fuel distribution system, a product delivery hose is centrally located within a vapor recovery hose, whereby the area between the product and vapor hoses provides a return path for vapors developed at a nozzle during refueling of a vehicle. A venturi pump is located in the product hose, and operable over a range of flow rate of the fuel through the product hose, for sucking fuel back into the product hose from an area of the vapor path where fuel may accumulate due to backflow from the nozzle, thereby substantially insuring a clear vapor path and more complete delivery of metered fuel.

REFERENCES:
patent: 3863687 (1975-02-01), Alquist
patent: 3913633 (1975-10-01), Hiller
patent: 3952781 (1976-04-01), Hiller et al.
patent: 3981335 (1976-09-01), Deters
patent: 4057086 (1977-11-01), Healy
patent: 4095626 (1978-06-01), Healy
patent: 4253503 (1981-03-01), Gunn
patent: 4566504 (1986-01-01), Furrow et al.

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