atomization enhancement

[Gary Derian]

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.

Gary Derian <gderian at oh.verio.com>


> I'd like to propose a simple atomization enhancement strategy.  It is
> well known that higher pressure results in better atomization in a
> fuel injection system.... Caterpillar has carried this to extremes and
> has some diesel engines running ungodly high pressures....I don't know
> the exact figures.
>     I propose changing out the injectors on my vehicle with injectors
> rated for lower flow, and raising the pressure to compensate.
> Pressure would be adjusted in "open loop" mode using an exhaust
> analyzer.  It has been said that most injectors are rated at pressures
> far above what they are operated at.
>     I'm sure this is far from an original idea, and that some of you
> have done it..... How much difference does it make, and what about
> pump load at the higher pressures..... how much increase in pressure
> is required.
>     I'd like to hear about peoples experiences and mishaps doing this
> ;-)
>
>                                                         H.W.
>