atomization enhancement

[Robert Harris]

Its not.  The back side of the intake valve under medium load can exceed 600F
( Vizard ) and this is one of the reasons that simply ceramic coating the face
of the intake can drop the charge temperature 60 degrees or more.  It has long
been used in constant flow systems like the hilborn to greatly aid
accelerations.  The hot valve simply transfers its heat to the fuel.   Member
that the intake valve has just been exposed to 360 degrees of intense heat
during combustion and exhaust by simply being in the chamber.  



Date: Sun, 02 May 1999 12:21:01 -0400
From: "David A. Cooley" <n5xmt at bellsouth.net>
Subject: Re: atomization enhancement

At 10:10 AM 5/2/99 -0400, you wrote:
>There has been some recent research that indicates the best atomization
>occurs when the exhaust hits the puddled fuel behind the intake valve when
>the valve opens.  Atomization of fuel as it leaves the injector is not
>terribly important.

Yes, but that's not atomization, that's vaporization... and if it's caused
by the exhaust hitting the puddled fuel, that means it's being blown back
into the intake runner causing intake dilution and fuel distribution problems.
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           David Cooley N5XMT           Internet: N5XMT at bellsouth.net
     Packet: N5XMT at KQ4LO.#INT.NC.USA.NA   T.A.P.R. Member #7068
   Sponges grow in the ocean... Wonder how deep it would be if they didn't?!
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