Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2006-08-22
2006-08-22
Denion, Thomas (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S274000, C060S297000
Reexamination Certificate
active
07093426
ABSTRACT:
To improve startability and reduce the amount of HC emission at start-up with the aid of a construction where vaporized fuel is supplied to the bypass passage that bypasses the main passage.The main air control valve16is installed near the intake port10of the main air passage3,and the main air control valve is closed or throttled at the time of start-up or additional injection from the port injection valve5is given in the beginning of start-up cranking. With a apparatus equipped with the main air control valve, vaporization of the fuel injected from the auxiliary injection valve6is facilitated in the beginning of cranking and also intake delay of the vaporized fuel is reduced, and hence startability can improve and the amount of HC emission at the time of start-up can decrease. With a apparatus where additional injection is given from the port injection valve5in the beginning of cranking, fuel supply into the cylinder is achieved quickly, and hence startability can improve and the amount of HC emission at the time of start-up can decrease.
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Ichihara Takanobu
Katogi Kozo
Nagano Masami
Saeki Hiroaki
Crowell & Moring LLP
Denion Thomas
Hitachi , Ltd.
Hitachi Car Engineering Co. Ltd.
Tran Diem
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