For REALLY good injection, check this out

Terry Martin terry_martin at mindlink.bc.ca
Sat Aug 23 19:48:33 GMT 1997


Corey L. Cole wrote:
> 
> Terry Martin wrote:
> > I'd better mention really good injectors here or I'll be hissed at. :-)
> > I still think compressing part of the air charge into the injector
> > stream is an idea with merit.... It would also serve to better atomize the injector stream.
> > No?
> >
> > Terry
> 
> How about combining EGR with the compressed air?... As far as adding straight air, sounds good.  You could go direct injection and get real small droplets for complete combustion.  Hmmm,  I think I can drill
> a 9/16 hole right here in my cylinder head :)

I have a hole-saw, if your drill won't accomodate the 9/16 :-0

You could dump just about anything into the injector stream,(except
maybe lumps of coal). That's the beauty of injectors. They do for heat
engines what transistors did for electrical apparatus. It takes an
analog equivalent (carb), and replaces it with digital, (injectors form
discrete packets). All of the fuel charge, (and exhaust), can be
precisely measured and metered, without bothersome interference like
ambient heat, pressure, gas composition, etc,etc. Detectors can
precisely measure every variable, and instantly adjust accordingly. 

One element that nobody seems to pay much attention to is the fact that
roughly 80% of the air component is nitrogen, and does absolutely
bupkiss, except pollute the crap out of everything. Being a diver, I'm
acutely aware of nitrogen saturation of tissue under pressure, and the
effect that compression has on the partial pressures of the various
gasses. I suppose the so called "oxygenation" of fuel has some merit,
but it's still a concept trying to formulate fuel to fit both carbed,
and injected engines. That's just plain stupid. If the gas companies
want to get on the boat, why not formulate a fuel specifically for
injected engines, (like diesel is), and make a serious attempt to
saturate the fuel with oxygen, so that the intake air stream is reduced.
Hell, they could even get into agriculture, and use the oxygen given off
by plants as the source by tapping the enriched air of the massive acres
of greenhouses popping up everywhere. I have no idea what sort of oxygen
absorption a particular liquid hydro-carbon has, (pressure dependant,
among other things), but getting even a small amount of the nitrogen out
of the process in favour of oxygen has big leverage on combustion and
power efficiency, as does recovering lost heat, and moving heat out of
the intake charge. 

Terry




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