Vapor recovery system for motor vehicles

Details Vapor recovery system for motor vehicles Vapor recovery system for motor vehicles

1992-12-07

1994-01-04

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123516, 123525, 123456, F02M 3704

Patent

active

052751457

ABSTRACT:
A system for automotive vehicles carrying a fuel tank for volatile fuels which is directed to avoiding the escape to atmosphere of fuel vapors which rise from the liquid fuel. The system includes a collector dome on the fuel tank and a storage canister for vapors. A vapor pump is provided for reducing the stored vapor to liquid before directing it from a high pressure tank into the fuel supply leading to the engine of the vehicles. The vapor pump is powered by an electrical source or, alternatively, by the vehicle engine. A pressure responsive switch controls the initiation of the vapor pump action. A standard fuel pump in the fuel tank delivers liquid fuel to the fuel injection system of the engine.

REFERENCES:
patent: 3957025 (1976-05-01), Heath
patent: 4059081 (1977-11-01), Kayanuma
patent: 4070828 (1978-01-01), Barres
patent: 4499885 (1985-02-01), Weissenbach
patent: 4617904 (1986-10-01), Pagdin
patent: 4760832 (1988-08-01), Smith
patent: 4829968 (1989-05-01), Onufer
patent: 4876993 (1989-10-01), Slattery
patent: 4982715 (1991-01-01), Foster
patent: 5080078 (1992-01-01), Hamburg

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