Plasma Jet Ignition

Raymond C Drouillard cosmic.ray at juno.com
Mon Feb 22 23:21:12 GMT 1999


It'll go away when the capaciter discharges - the same as a xenon flash
tube.

Ray


On Sun, 21 Feb 1999 22:12:29 -0700 Marc Piccioni
<mpiccioni at attcanada.net> writes:
>Just a quick question, if you get the high current flowing how are you 
>planning on terminating it?
>
>----------
>From: 	Chris Conlon[SMTP:synchris at ricochet.net]
>Sent: 	February 21, 1999 1:00 PM
>To: 	diy_efi at efi332.eng.ohio-state.edu
>Subject: 	Re: Plasma Jet Ignition
>
>At 06:50 PM 2/21/99 GMT, Robert Harris wrote:
>
>>Re-reading my Heywood and have become re-in-love with the concept of 
>plasma
>>jet ignition.   Essentially, a normal CD ignition fires the plug in a 
>cavity
>>connected to the main chamber by an orifice.  Once the arc is 
>established, a
>>second low voltage high current capacitive discharge is routed into 
>the
>arc.  
>
>Hmm. Electrically, this is exactly the kind of ignition I'm trying to
>build. Or rather, trying to get a buddy of mine who's already doing a
>DIY coil-per-plug system, to try and build for me. My plate's too damn
>full already. I figured, why should you have to choose between a 
>short,
>hot spark and a longer, less hot one? But I have not read the book you
>mention, guess I'd better try and get a copy.
>
>It's a lot like building a power supply for a flash lamp, which detail
>it took me embarassingly long to realize.
>
>Do you have info or speculations on the benefits of just the 
>electrical
>aspect of this idea, vs. just the mechanical aspects. (the cavity and
>orifice)  In other words, does either part of the system get you any
>gain over a normal setup? I'm just wondering about the mechanisms
>involved.
>
>   Chris C.
>
>
>
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>end
>
>

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