FUEL SUPPLY DEVICE OF INTERNAL COMBUSTION ENGINE

Japanese Patent JP3867508

B2

PROBLEM TO BE SOLVED: To prevent the deterioration of startability and exhaust of unburnt gas by sticking of fuel to an intake air passage when atomization air reduces at starting cranking time in the constitution provided with injection valves arranged in respective cylinders of an internal combustion engine and the upstream high atomization injection valve.
SOLUTION: The constitution provided with the injection valves arranged in the respective cylinders of the internal combustion engine and the air assist type high atomization injection valve in the upstream intake air passage, is provided with an injection control means for injecting fuel by the injection valves arranged in an intake air port at starting cranking time, and is constituted by having a fuel vaporizing heater in the intake air passage, and is provided with the injection control means for injecting the fuel by the injection valves arranged in the respective cylinders at starting cranking time and injecting the fuel by the upstream injection valve after increasing rotation. Thus, the deterioration of the startability and the exhaust of the unburnt gas at starting cranking time can be prevented while improving combustion after starting.

Takanobu Ichihara
Masami Nagano
Toshiharu Nogi

JP2001094559A

January 10, 2007

March 29, 2001

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株式会社日立製作所

F02D41/06; F02M31/12; F02D41/04; F02D41/34; F02M31/135; F02M37/00; F02M69/00; (IPC1-7): F02D41/06; F02D41/04; F02D41/34; F02M31/135; F02M31/12; F02M37/00; F02M69/00

JP59147866A
JP5125974A
JP6010805A
JP687669U
JP6026427A
JP61200436U
JP4292573A

US5894832

Manabu Inoue

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