Diluted oil regeneration in internal combustion engine

摘要: An internal combustion engine ( 10 ) for a vehicle comprises fuel injector 12 which supplies to chamber formed in piston 1 ), and an oil pan stores below the ). With regard phenomenon whereby is diluted with injected by controller 90 determines whether or not needs be regenerated (S 13 When regenerated, switches cooling water path controlling electrically controlled thermostat 74 raises temperature of over predetermined time period 15 , S 17 As result this increase, vaporized, thereby reducing dilution ratio oil, thus regenerated.