Ignition system for a spark ignited internal combustion engine

Details Ignition system for a spark ignited internal combustion engine Ignition system for a spark ignited internal combustion engine

1991-09-25

1992-08-18

Wolfe, Willis R.

Internal-combustion engines

High tension ignition system

Current or voltage sensing in coil primary

123609, F02P 305, F02P 3045

Patent

active

051390043

ABSTRACT:
An ignition system for a spark-ignited internal combustion engine has a transistor connected in series with the primary winding of an ignition coil. The transistor is switched ON and OFF in synchronism with rotation of the crankshaft of the engine. Primary winding current is sensed by a resistor and the voltage developed across the resistor is fed back into an error amplifier which causes the transistor to be biased into a current-limiting mode when primary winding current increases to a predetermined level. The feedback loop has a capacitor which is a feedback compensation element. This capacitor, together with a resistor form an RC timing circuit which is operative at times to prevent the transistor from being biased back ON for a predetermined time period after it has been biased OFF.

REFERENCES:
patent: 3838672 (1974-10-01), Richards et al.
patent: 3854466 (1974-12-01), Steinberg et al.
patent: 4041912 (1977-08-01), Sessions
patent: 4064415 (1977-12-01), Blackington
patent: 4082075 (1978-04-01), Davis
patent: 4106447 (1978-08-01), West
patent: 4176644 (1979-12-01), Hellberg et al.
patent: 4248200 (1981-02-01), Sugiura et al.
patent: 4329970 (1982-05-01), Mowery
patent: 4402299 (1983-09-01), Nakao et al.
patent: 4799471 (1989-01-01), Lasagna et al.
patent: 4899715 (1990-02-01), Koiwa et al.
patent: 4977883 (1990-12-01), Koiwa

Affiliated with

Also associated with

Rating

Ignition system for a spark ignited internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ignition system for a spark ignited internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ignition system for a spark ignited internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1241439