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AssigneesHitachi, Ltd., Hitachi Car Engineering Co., Ltd.
InventorsTakanobu Ichihara, Masami Nagano, Kozo Katogi, Hiroaki Saeki
Estimating the term…
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 valve 16 is installed near the intake port 10 of the main air passage 3, and the main air control valve is closed or throttled at the time of start-up or additional injection from the port injection valve 5 is 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 valve 6 is 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 valve 5 in 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.
A starting apparatus of an internal combustion engine comprising:
A starting method of an internal combustion engine comprising:
A control method of an internal combustion engine equipped with a starting apparatus comprising a main air passage including an intake manifold for supplying air to each cylinder of the engine, a bypass air passage provided in parallel to the main air passage and connected close to the intake port of each cylinder, a vaporization fuel supply means for supplying vaporized fuel to the bypass air passage, and a bypass air control valve capable of controlling the incoming air quantity into the bypass air passage and in which main air control valves for the main air passage are provided near intake ports in respective pipes of the intake manifold, the control method comprising:
A control method of an internal combustion engine equipped with a starting apparatus comprising a main air passage including an intake manifold for supplying air to each cylinder of the engine, a bypass air passage provided in parallel to the main air passage and connected close to the intake port of each cylinder, a vaporization fuel supply means for supplying vaporized fuel to the bypass air passage, and a bypass air control valve capable of controlling the incoming air quantity into the bypass air passage, in which main air control valves for the main air passage are provided near intake ports in respective pipes of the intake manifold, and in which the vaporization fuel supply means comprises an auxiliary fuel injection valve and a heater for heating the fuel injected from the auxiliary fuel injection valve, the control method comprising:
Dependencies are inferred from the claim text.