[Diy_efi] Re: sequential injection timing

[Greg Hermann]

At 10:50 PM 7/30/02, Steve Neese wrote:
>Gerg Herman wrote:
>> Vaporized fuel in the inlet tract:
>
><snip>
>
>Guess what else it does!!  From Heywood:
>
>"Experimental data show that the decrease in air temperature that
>accompanies liquid fuel evaporation more than offsets the reduction in
>air partial pressure due to the increased amount of fuel vapor: for the
>same heating rate, VE with fuel vaporization is higher by a few
>percent." p.211
>
>Speaking of Heywood, did any of yall catch him on The History Channel
>the other day?  He was an interviewee on Modern Marvels for the show
>about engines.
>
>Steve N.

First, he's only talking about adiabatic fuel evaporation to the point of
reaching the saturation pressure with respect to fuel vapor in the inlet
tract--NOT about adding enough heat to evaporate all of the fuel !

Second, if it had been an interview with Sir Harry or Vittorio Jano, or
even Keith Duckworth, Edward Obert, Rudi Uhlenhaut, or Zora Duntov, it
might have been worth watching !

Greg



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