Re: LPG in cars
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Re: LPG in cars



On Sun, 8 May 2005 mail@xxxxxxxxxxxx wrote:

Saw a post on using LPG in cars, and there are many
advantages to it. The main dis advantage is where to
fill up. Can't you just fill up at home? There is a
company that has produced a home filling station that
basically just lowers the pressure coming out of the
home line. Couldn't you just set up a "T" and use that
to hook up your filling station.....Russ

Nahh, it's gotta be pumped into the car tank. The reason is that when you connect two tanks together, fuel will flow from the fuller one to the emptier one only until the pressure equalizes.

Plus home (propane, not natural gas) tanks dispense gas, and auto
systems dispense liquid. For BBQs and stoves gas it picked off the
top of the tank, for LP car systems liquid is taken off the bottom
of the tank.

Think of it as a sealed tank filled with boiling liquid; off the
top is steam (gas) at the bottom is liquid. In fact this is almost
exactly what's going on with LP -- it boils to "steam" (LP gas) at
-22F.


(You can make a "gas can" for LP cars with a 5-gallon BBQ can with the internal safety valve removed; with a special double-ended hose (1-3/4" acme to POL) you connect a TOTALLY FULL 5-gal can to a TOTALLY EMPTY car tank, tip the 5-gal upside down, then open the valve. About 4 of the 4.5 gallons the can will fill the big empty tank, at which time the pressures equalize.

(New BBQ cans have a safety valve that prevents overfilling and
also prevents dispensing liquid when turned upside down. It's a
good idea, except for use as a gas can :-)







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