[Diy_efi] LPG injection

[Mike]

At 10:33 AM 18/11/2002 -0500, you wrote:
>Third-- Conventional propane carburetor systems absolutely do NOT draw gas
>off of the top of the tank !! They use a dip tube and draw LIQUID off of
>the bottom of the tank. The liquid then goes through the "vaporizer"--which
>uses warm engine coolant to vaporize the liquid before it goes to the
>carburetor. The tank would turn into an ice ball (again, from atmospheric
>humidity) if one even TRIED to draw the quantity of gas off of it that even
>a small engine uses under load !! ) (Not to mention that you simply would
>NOT get ENOUGH gas out of the tank to let the engine run !!

Greg, Although I agree with your first 2 comments/observations, there is
a sheer and blatant error of logic in your last para above !

Whether you draw off liquid from the bottom or gas from the top, the
tank will reduce its pressure therefore it will get cooler, it doesnt
turn into an ice ball...

To suggest you wouldnt get enough to run the engine if drawing gas from
the top yet its enough to turn it into an 'ice ball' versus drawing more
gas (as a liquid) from the bottom is preposterous !

If anything the tank is going to get cooler the more you draw from it
a the presure will drop - so clearly if you draw less then the engine
needs by drawing gas from the top instead of liquid from the bottom
then its shouldnt run colder <sigh>

rgds

mike


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