Patent ID: 6499456
Filing Date: 2002-12-31
Classification: F02B,F02D,F02F,F02M,F02P,Y02T

Abstract:
A cylinder injection engine comprising:a fuel injector for injecting a fuel into a combustion chamber formed between a cylinder head and a piston; an intake port opening to said combustion chamber; an intake valve engaging with said intake port; a plurality of spark plugs provided for each cylinder for effecting ignition of a mixture formed within said combustion chamber; an external EGR valve having a function of EGR amount control to said cylinder; a gas flow control valve; and means for setting air/fuel ratio modes and for setting mode of switching spark plugs, wherein two spark plugs are provided in each cylinder, fuel is injected in an intake stroke, dual-spark ignition is performed under the condition where EGR is effected, and the mixture is concentrated to one of the spark plugs in stratified charge combustion operation.