Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1983-07-15
1985-07-16
Nelli, Raymond A.
Internal-combustion engines
Charge forming device
Fuel injection system
123480, 123490, F02D 1306, F02D 500, F02M 5100
Patent
active
045289603
ABSTRACT:
Fuel injection modes including an independent injection mode, group injection mode and simultaneous injection mode are changed over in accordance with an engine operating condition, for example, a load condition. The independent injection mode is selected when the engine is operating in a low load condition, and the fuel injection timing for each cylinder is controlled independently. When the low load condition of the engine changes to an intermediate load condition, the group injection mode is selected and the fuel injection timing is controlled for each group of cylinders formed by grouping the cylinders into at least two groups. The simultaneous injection mode is selected when the intermediate load condition changes to a high load condition, and the fuel injection timing for all the cylinders is controlled to be simultaneous.
REFERENCES:
patent: 4058709 (1977-11-01), Long
patent: 4383514 (1983-05-01), Fiala
patent: 4383515 (1983-05-01), Higashiyama et al.
patent: 4387429 (1983-06-01), Yamauchi et al.
patent: 4404945 (1983-09-01), Fujikawa
patent: 4434770 (1984-03-01), Nishimura et al.
Kinugawa Masumi
Mizuno Toshiaki
Omori Norio
Nelli Raymond A.
Nippondenso Co. Ltd.
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