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Date:         Mon, 6 Apr 2009 19:51:20 -0700
Reply-To:     neil N <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         neil N <musomuso@GMAIL.COM>
Subject:      Re: digifant injection
Comments: To: Allan Streib <streib@cs.indiana.edu>
In-Reply-To:  <m1eiw56xl3.fsf@cs.indiana.edu>
Content-Type: text/plain; charset=ISO-8859-1

On Mon, Apr 6, 2009 at 6:50 PM, Allan Streib <streib@cs.indiana.edu> wrote: > Another post got me curious, and I read a bit about how Digifant works. > From what I read it seems that all 4 injectors fire together, which > confuses me -- I would have guessed that each injector fired just as the > intake stroke was starting for that cylinder.  Does the fuel vapor just > sort of accumulate behind the intake valve until the intake stroke for > that cylinder?  Surely 3/4 of the injection cycles are not "wasted" > fuel??

An interesting question, that appears to have been answered.

FWIW, I googled using the term "batch fire" and found that the correct term (or possibly one of them) is "simultaneous injection".

Neil. -- Neil Nicholson '81 VanaJetta 2.0 "Jaco"

http://tubaneil.googlepages.com/

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines


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