F - Mech Eng,Light,Heat,Weapons – 02 – P
Patent
F - Mech Eng,Light,Heat,Weapons
02
P
317/5.35
F02P 5/155 (2006.01)
Patent
CA 1132653
D-3140 C-3155 AN INTERNAL COMBUSTION ENGINE ELECTRONIC IGNITION SYSTEM HAVING AN ENGINE SPEED SENSITIVE VARIABLE IGNITION SPARK RETARD FEATURE Abstract of the Disclosure During the presence of a selected internal combustion engine operating parameter such as a coolant temperature range, the alternating current timing signals induced in the output coil of an electrical generator assembly having at least a rotor member rotated in timed relationship with the engine are overridden by the output signal of a circuit combina- tion that produces the output signal during the positive going portion of each of the timing signals and main- tains the output signal for a period of time that varies inversely in duration as the potential level with respect to ground of an engine speed variable potential signal varies directly with engine speed to provide an engine speed ignition spark retard that diminishes substantially linearly in value from maximum to minimum between selected first lower and second higher engine speeds.
352776
General Motors Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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