Fuel Air Diesel engine induction

Gordon Couger gcouger at ceatlabs.okstate.edu
Sat Sep 21 03:24:53 GMT 1996


>> Dirty little diesel secret.  Propane.  Since a diesel runs with an 
>> excess of oxygen, with the right fuel, you can make more power.  
>> Lots more power - like 25% more without busting a wrench. 
>> (Check BI FUEL references on the internet). 
>> 
>> You merely meter propane to the intake air of a diesel engine in 
>> proportion to the EXTRA power you would like to make - like a 
>> throttle plate NOS system, without the NOS.  Since the auto
>> inanition temp of propane is ridiculously high, it won't ignite
>> until you introduce it to the fire from the injected fuel.  Since it
>> requires a relatively rich mixture to sustain combustion ( 
>> compared to gasoline) a lean mixture is not prone to backfiring.
>
It works great. Just watch your exuast gas temperture. You can melt down
a turbo or and engin this way. I don't know if it is still being done
but in the 60's & 70's it was used to get you through the "hard spots"
by some folks. If they didn't over use it they seemed to get by pretty 
well.

It would be interesting to see what you could do with propane injection 
and water injection to keep the temperatures under control.

One thing I wonder about with water injection is high pressure steam is
pretty corosive stuff. I would worry about piston, valve and turbo 
errosion.

Gordon


Gordon Couger Senior Software Specialist
Biosystems & Agricultural Engineering Dept.  Oklahoma State Univ.
114 Ag Hall Stillwater, OK 74075
gcouger at master.ceat.okstate.edu



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