| 摘要 |
A feed system for the air-fuel mixture formation and inlet into the combustion chamber of aspirated or supercharged, internal-combustion Otto engines with a 5-valve head per cylinder, characterized by a single-spray electroinjector (1) having such a spray angle and such a direction as to hit only the intake duct of the central intake valve (Vasp.C), a timing of the central intake valve (Vasp.C) delayed with respect to the lateral intake valves (Vasp.S, Vasp.D), and an overlap angle between the openings of the intake valves and the exhaust valves (Vscar.) which is large in the lateral intake valves (Vasp.S, Vasp.D) and small or null in the central intake valve (Vasp.C). <IMAGE>
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