Abstract In an internal combustion engine, an electronic system comprising an ignition coil adapted to energize the sparking plugs upon application of an electric pulse on a semiconductive member, said system including an oscillating system controlled by said semiconductive member and constituted by an induction coil and a condenser together with two diodes adapted to prevent the discharge of the latter. The semiconductive member is constituted by a transistor or a thyristor incorporated with said circuit so that the ignition-controlling pulses reaching said transistor or thyristor allow the condenser to discharge into the primary of the ignition coil and to thereby release the ignition. The induction coil can possibly control the injection of fuel in which case two semiconductive members are used which control respectively injection and ignition.
Inventors
👤 Louis Monpetit
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-26 13:10
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/005
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
33 words
The improved ignition system of claim 1 including means connected between said energy storage means and said inductance to prevent the transfer of energy stored in said energy storage means to said inductance.
Claim 2
Dependent Claim
27 words
The improved ignition system of claim 1 wherein said switching means and said means for transferring the energy stored in said energy storage means comprises a transistor.
Claim 3
Dependent Claim
39 words
The improved ignition system of claim 1 wherein said switching means comprises a transistor connected in series with said inductance and said means for transferring comprises a thyristor connected between an electrode of said transistor and said ignition coil.
Claim 4
Dependent Claim
40 words
The improved ignition system of claim 1 wherein said switching means comprises a thyristor connected in series with said inductance and said means for transferring comprises a transistor connected in series with said ignition coil and said energy storage means.
Claim 5
Dependent Claim
50 words
The improved ignition system of claim 1 including second energy storage means connected in parallel with said energy storage means; a thyristor connected between said energy storage means and said inductance and wherein said switching means and said means for transferring comprise a transistor connected in series with said inductance.