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US 3,941,112 AGranted
Ignition device for internal combustion engines
AssigneeDucellier et Cie
InventorRoger Jean Habert
Life of this patent
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Abstract
An ignition device for an internal combustion engine of the kind having an ignition coil comprising a primary winding and a secondary winding, a current limiting resistance connected in series with the primary winding and a contact breaker, wherein there is provided means which shunt said current limiting resistance for a predetermined time at each closure of the contacts of said contact breaker.
Claims5
An ignition device for an internal combustion engine comprising:
- a contact breaker;
- an ignition coil having a low voltage primary winding adapted to be connected to an electrical battery through said contact breaker;
- and
- a high voltage secondary winding adapted to be connected consecutively to engine spark plugs through a distributor;
- a current limiting resistance connected in series with said primary winding;
- and
- electronic means connected in parallel with said resistance for shunting out said resistance for a specific predetermined time interval of the total time of closure of said contact breaker, independently of ambient temperature and engine speed.
4 more elements
Dependencies are inferred from the claim text.