Patent ID: 7721703
Filing Date: 2010-05-25
Classification: F02B,F02D,F02M,F02P,Y02T

Abstract:
1. An internal combustion engine comprising: a first fuel injector that supplies a first fuel to a first predetermined region in a combustion chamber; a second fuel injector that supplies a second fuel to a second predetermined region in the combustion chamber, the second fuel having an octane number that is different than an octane number of the first fuel, the second predetermined region being different from the first predetermined region; an ignition device configured to start ignition of one of the first and second fuels based on an ignition signal; an operation condition detector that detects at least one engine operating condition; and a controller configured determine which one of the first and second fuels to ignite by the ignition device based on the engine operation condition and to then provide the ignition signal to the ignition device.