Fuel feed control device for internal combustion engine

Details Fuel feed control device for internal combustion engine Fuel feed control device for internal combustion engine

1975-06-24

1978-03-14

Cox, Ronald B.

Internal-combustion engines

Noncompression

361160, F02B 300

Patent

active

040785289

ABSTRACT:
A fuel feed control device for an internal combustion engine comprising an electromagnetic valve for controlling the fuel quantity to be fed to the internal combustion engine according to the opening duration of the valve, in which the valve is adapted to be energized to be held in its open state with a holding current, the holding current being large enough to hold the valve in its open state after the valve has been once rendered open but not enough to render the valve open from its closed state and having been applied to the valve before the valve is rendered open from its closed state, and energized to be rendered open from its closed state with a valve opening current along with the holding current, the valve opening current being applied to the valve for a pregiven duration so as to additionally co-operate with the holding current, and, further, when the valve is rendered closed from its open state, the valve is energized with a control current, for a desired duration from the instant when the holding current is cut off, so as to produce backward magnetic flux to cancel the forward magnetic flux induced at the instant when the holding current is cut off, whereby the control device may be improved in the responsiveness in the opening and closing operation of the injection valve.

REFERENCES:
patent: 2077259 (1937-04-01), Planiol
patent: 3021454 (1962-02-01), Pickens
patent: 3396314 (1968-08-01), Corson
patent: 3433207 (1969-03-01), Bassot et al.
patent: 3465731 (1969-09-01), Bassot
patent: 3702425 (1972-11-01), Hoffmann
patent: 3942485 (1976-03-01), Suda

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