Fuel injection system for multi-cylinder internal combustion eng

Details Fuel injection system for multi-cylinder internal combustion eng Fuel injection system for multi-cylinder internal combustion eng

1993-12-06

1995-08-15

Kamen, Noah P.

Internal-combustion engines

Charge forming device

Auxiliary air or gas used to inject fuel

123585, F02B 300

Patent

active

054410320

ABSTRACT:
In a fuel injection system for an internal combustion engine, engine cylinders are divided into a plurality of cylinder groups. An air passage is provided for supplying mixing air to areas near injection holes of fuel injection valves so as to facilitate atomization of fuel injected from the respective fuel injection valves. The air passage is opened synchronously with a fuel injection of each fuel injection valve such that the mixing air is selectively distributed to the above-noted areas per cylinder group. The mixing air is distributed for such a cylinder group that includes the engine cylinder being injected with the fuel from the corresponding fuel injection valve. The air passage includes a branch portion for the distribution of the mixing air to the above-noted areas. Capacities of the air passage from the branch portion to the respective fuel injection valves may be set substantially equal to each other so as to further facilitate the atomization of the injected fuel.

REFERENCES:
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patent: 4465050 (1984-08-01), Igashira et al.
patent: 4475486 (1984-10-01), Kessler
patent: 4756293 (1988-07-01), Suzuki et al.
patent: 5121716 (1992-06-01), Takahashi et al.
patent: 5148788 (1992-09-01), Saikalis et al.
patent: 5150692 (1992-09-01), Trombley et al.

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