Engine control system for multi-valve engine

Details Engine control system for multi-valve engine Engine control system for multi-valve engine

1991-03-26

1992-06-09

Okonsky, David A.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

Air or combustible mixture entering the combustion chamber...

F02M 3900

Patent

active

051197847

ABSTRACT:
An intake system, for use with an internal combustion engine having a plurality of intake valves for each cylinder, includes a plurality of intake ports, opening into the combustion chamber side of the internal combustion engine at different distances from a spark plug of the cylinder. The intake valves are controlled to keep an intake port located at the shortest distance from the spark plug opened only slightly in an early intake cycle stage while opening the other intake ports at their desired timings. The intake port located at the shortest distance from the spark plug is subsequently opened at a desired timing, thereby aspirating a substantial quantity of air through the closest intake port at a later time than through the other intake ports.

REFERENCES:
patent: 3186388 (1965-06-01), Bricout
patent: 3416502 (1968-12-01), Weiss
patent: 3964451 (1976-06-01), Goto
patent: 4114371 (1978-09-01), Matsuda
patent: 4614174 (1986-09-01), Tanigawa et al.
patent: 4834048 (1989-05-01), Adamis et al.
patent: 4926823 (1990-05-01), Kishi et al.
patent: 4955347 (1990-09-01), Toyoda

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