Engine control system

Details Engine control system Engine control system

1993-02-01

1995-08-22

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123 9015, 123681, F02D 4300

Patent

active

054430500

ABSTRACT:
An engine-control system is structured in such a way that a timing for closing the intake valve is retarded and the air-fuel ratio is so set as to become a rich air-fuel ratio richer than, for example, the stoichiometric air-fuel ratio, in a region where the load is low. On the other hand, in a region where the load is high, the timing for closing the intake valve is set earlier and the air-fuel ratio is so set as to become a lean air-fuel ratio leaner than, for example, the stoichiometric air-fuel ratio.

REFERENCES:
patent: 3911873 (1975-10-01), Dave
patent: 4499872 (1985-02-01), Ward et al.
patent: 4759321 (1988-07-01), Matsumoto et al.
patent: 5083533 (1992-01-01), Richeson et al.
patent: 5121733 (1992-06-01), Goto et al.
patent: 5211147 (1993-05-01), Ward
patent: 5309886 (1994-05-01), Hitomi et al.

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