Ignition system and method for internal combustion engine

Details Ignition system and method for internal combustion engine Ignition system and method for internal combustion engine

1991-05-21

1992-08-11

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Engine speed reduction by fuel cutoff

F02D 3300

Patent

active

051369966

ABSTRACT:
An ignition system is provided for an internal combustion engine in which an amount of fuel necessary for combustion during one combustion and expansion stroke in one cycle of the internal combustion engine is injected toward respective cylinders, and the fuel is sucked, together with air, into the cylinders during respective suction strokes. The engine has a fuel cut control in which a fuel injection is cut off when the internal combustion engine is working under a predetermined condition. The ignition system includes a first unit for igniting mixtures of fuel and air in the respective cylinders in respective combustion and expansion strokes, and a second unit for detecting a cylinder into which the amount of fuel necessary for combustion has not yet been sucked completely when the fuel cut control ends. Also, the ignition system includes a third unit for controlling the first unit so that the mixture of fuel and air in the cylinder specified by the second unit is prevented from being ignited. There is also provided an ignition method.

REFERENCES:
patent: 4573440 (1986-03-01), Pischke et al.
patent: 5018595 (1991-05-01), Hara et al.
patent: 5025881 (1991-06-01), Poiriar et al.

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