Fuel injection system and method

Details Fuel injection system and method Fuel injection system and method

2005-11-01

2005-11-01

Huynh, Hai (Department: 3747)

Internal-combustion engines

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

Having a single combustible mixture inlet combined with...

C123S299000, C123S491000, C123S304000, C123S576000, C123S578000

Reexamination Certificate

active

06959693

ABSTRACT:
A fuel injection system includes a first fuel injector that injects a lower-octane fuel into a combustion chamber of an internal combustion engine, and a second fuel injector that injects a higher-octane fuel into an intake passage of the engine. When the engine temperature is equal to or lower than a predetermined temperature during a start-up period of the internal combustion engine, fuel having the lower octane is injected via the first injector while prohibiting injection of the higher octane fuel via the second fuel injector.

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