paraska at oasys.dt.navy.mil
Mon Jul 25 11:38:56 GMT 1994
dave.williams at chaos.lrk.ar.us (Dave Williams) replied:
> As chamber pressure goes up it becomes harder for a spark to jump the
>gap. SAAB might be doing that... but you'd actually have to send a
>spark, which wouldn't be a good idea before the intended ignition event.
>They're probably watching for ionization from detonation combustion.
>The resistance across the gap will change if the mixture is burning.
I just read in Automotive Industries (AI) annual engine report that Dave is
right on the money - they are keying to ionization. They didn't mention how
they where getting a reading on that, but Dave cleared that up - resistance.
The system is call Trionic Ignition or some such.
Thanks (again) Dave, for giving us the right stuff.
~~~~~~~~ Pete (paraska at oasys.dt.navy.mil) IZCC#15 ~~~~~~~~~
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