Internal combustion engine ignition system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 6, 1990
Grant Date -
N/A
app pub date -
Nov 15, 1989
filing date -
Nov 15, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ignition timing circuit controls operational amplifiers 41, 42 associated with respective engine cylinders in accordance with relative voltage levels, V1, V2 and V3 established by resistive dividers in response to timing signals from pulse coil windings 21, 22 and the output of an operating circuit 39, thereby avoiding the use of flip flops.
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