Fuel vapor control system

Details Fuel vapor control system Fuel vapor control system

1996-10-24

1998-05-12

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123198D, 123518, F02M 3704

Patent

active

057493499

ABSTRACT:
An electrically controlled vacuum operated valve controls flow of fuel vapors from a collector canister to the engine intake manifold. A pressure regulator controls fuel vapor flow from the canister to the inlet of the electric valve and is normally closed. During engine operation, if the control valve maintains a threshold level of vacuum at the regulator outlet, the regulator will permit fuel vapor flow from the canister to the control valve, otherwise the regulator is closed.

REFERENCES:
patent: 4951637 (1990-08-01), Cook
patent: 5083546 (1992-01-01), Detweiler
patent: 5115785 (1992-05-01), Cook
patent: 5191870 (1993-03-01), Cook
patent: 5199404 (1993-04-01), Cook
patent: 5277167 (1994-01-01), DeLand et al.
patent: 5429099 (1995-07-01), Deland
patent: 5499614 (1996-03-01), Busato
patent: 5603349 (1997-02-01), Harris

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