Patent ID: 7503167
Filing Date: 2009-03-17
Classification: F01N,F02B,F02D,Y02T

Abstract:
1. An internal combustion engine, comprising, a gasoline fuel injection system; a plurality of combustion cylinders, each being configured to receive gasoline from the gasoline fuel injection system and combust a mixture of air and gasoline in either a spark ignition mode or a sparkless homogeneous charge compression ignition (HCCI) mode; and a fuel vapor purge system fluidly coupled to the plurality of combustion cylinders, where the internal combustion engine is configured to operate in a first purge state, in which fuel vapors are permitted to be received from the fuel vapor purge system only into combustion cylinders that are operating in the spark ignition mode, and in a second purge state, in which fuel vapors are permitted to be received from the fuel vapor purge system into combustion cylinders operating in the spark ignition mode and into combustion cylinders operating in the HCCI mode.