Fuel supply control device for an engine

Details Fuel supply control device for an engine Fuel supply control device for an engine

1996-02-08

1997-02-04

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123698, 123520, F02M 2508, F02D 4114

Patent

active

055988288

ABSTRACT:
A fuel supply control device for an engine comprises a canister in which fuel vapor is temporarily stored and from which fuel vapor is purged into the engine. When the throttle valve is in the idling position and when the engine speed N is higher than the first reference speed N1, the fuel injection and the purging operation are stopped. During the stoppage of the fuel injection and the purging operation, if the throttle valve is out of the idling position or if the engine speed N is lower than the second reference speed N2, the fuel injection and the purging operation are restarted. The reference speeds N1 and N2 are set to become higher when the storing capacity of the canister becomes lower.

REFERENCES:
patent: 4630581 (1986-12-01), Shibata
patent: 4961412 (1990-10-01), Furuyama
patent: 5216991 (1993-06-01), Lida et al.
patent: 5216997 (1993-06-01), Osanai et al.
patent: 5406927 (1995-04-01), Kato et al.
patent: 5425349 (1995-06-01), Nagaishi et al.
patent: 5465703 (1995-11-01), Abe
patent: 5501206 (1996-03-01), Takebayashi

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