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Thread: Fuel economy measurement across the globe
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face picon face BY : M. Adam Davis email (remove spam text)



On 7/11/08, Olin Lathrop <olin_piclistspamspamspam_OUTembedinc.com> wrote:
> Some pumps shut down the internal pump, but of course
> it is turned on again when the nozzle is removed by the next customer.

The modern gas stations where I've seen the 'back room' have a
variable frequency drive pump for each storage tank of fuel.  The
pumps feed all the dispensers.  This method is less expensive overall
and easier to stop in case of emergency.  Generally they don't buy a
large enough pump to feed all the dispensers at once, so when lots of
people are fueling you can tell it's fuelling more slowly than usual.
further, some stations buy smaller pumps for the less frequently used
fuels.

The dispensors aren't much more than payment machines with meters (and
ads) and safety equipment...

-Adam

--
EARTH DAY 2008
Tuesday April 22
Save Money * Save Oil * Save Lives * Save the Planet
http://www.driveslowly.org
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