Patent ID: 6571781
Filing Date: 2003-06-03
Classification: F02B,F02M,Y02T

Abstract:
An exhaust gas assisted fuel injection apparatus for an internal combustion engine, comprising:a fuel injector installed in a suction port for supplying fuel to a combustion chamber of the engine; an EGR line installed between one side of an exhaust manifold of the engine and said fuel injector so that a portion of exhaust gas released from the engine surrounds fuel injected from said fuel injector thereby promoting the fine particle formation and vaporization of injected fuel; an exhaust gas injection apparatus or EGR valve installed in one side of said EGR line for regulating exhaust gas within said EGR line to thereby permit a portion of the exhaust gas to be injected with the fuel into the internal combustion engine to assist in quenching of NOx gas therein; and a control unit for opening/shutting said exhaust gas injection apparatus or EGR valve according to operating conditions of the engine.