Fast response two coil solenoid driver

Details Fast response two coil solenoid driver Fast response two coil solenoid driver

1980-10-01

1982-10-26

Lall, P. S.

Internal-combustion engines

Charge forming device

Fuel injection system

123478, 361152, 361154, F02B 300, H01H 4704

Patent

active

043556191

ABSTRACT:
A system for energizing a fuel injector, of a fuel injected engine having a metering chamber and a two coil solenoid operatively situated thereto for permitting a controlled quantity of fuel to flow therein. The system includes a pulse generator for generating a plurality of timing and fuel metering pulse width signals in synchronism with the combustion process within a cylinder of the engine, a voltage boost circuit responsive to timing and metering pulses and means for transferring, in seriatim energy from the boost circuit to a first low inductance pull-in coil and for energizing a second high inductance hold coil.

REFERENCES:
patent: 3170095 (1965-02-01), Goldstein
patent: 3700985 (1972-10-01), Applequist
patent: 3737736 (1973-06-01), Stampfli
patent: 3884195 (1975-05-01), Murtin
patent: 3942485 (1976-03-01), Suda et al.
patent: 4114184 (1978-09-01), Stampfli

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