Evaporative emission control system for internal combustion engi

Details Evaporative emission control system for internal combustion engi Evaporative emission control system for internal combustion engi

1998-05-27

2000-03-28

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

123520, F02M 3704

Patent

active

060417617

ABSTRACT:
An evaporative emission control system for an internal combustion engine includes of an evaporative fuel passage extending between the fuel tank and the intake system of the engine, and a control valve arranged across the evaporative fuel passage for opening and closing the evaporative fuel passage. The opening of the control valve is controlled such that the interior of the fuel tank is under negative pressure during operation and stoppage of the engine. The opening of the control valve is set to a desired value according to operating conditions of the engine.

REFERENCES:
patent: 5193511 (1993-03-01), Fujino
patent: 5220898 (1993-06-01), Kidokoro
patent: 5460142 (1995-10-01), Denz et al.
patent: 5497754 (1996-03-01), Ito
patent: 5617832 (1997-04-01), Yamazaki et al.
patent: 5647335 (1997-07-01), Scheurenbrand et al.
patent: 5816223 (1998-10-01), Jamrog et al.

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