Internal-combustion engines – Charge forming device – Having fluidic logic control means
Patent
1988-04-01
1989-05-30
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Having fluidic logic control means
123489, 123520, 123589, F02D 4122, F02M 724, F02M 2508
Patent
active
048340502
ABSTRACT:
An air-fuel ratio control device comprising an electric air bleed control valve which controls the amount of air fed into the fuel passage of the carburetor so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio. The degree of opening of the air bleed control valve is increased as an electric current fed into the air bleed control valve is increased. Fuel vapor is fed into the intake passage from the canister. An auxiliary air is also fed into the intake passage via an electric auxiliary air bleed control valve. When the supply of fuel vapor to the intake passage is started, if the electric current fed into the air bleed control valve increases and reaches the upper limit, the auxiliary air bleed control valve is opened. As a result, the electric current fed into the air bleed control valve is lowered and can move up and down so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio.
REFERENCES:
patent: 4633840 (1987-01-01), Saito et al.
patent: 4641623 (1987-02-01), Hamburg
patent: 4763634 (1988-08-01), Morozumi
Itou Takaaki
Uranishi Kouji
Argenbright Tony M.
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Air-fuel ratio control device of an internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air-fuel ratio control device of an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-fuel ratio control device of an internal combustion engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2144650