02GF74
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 posted on 7/11/06 at 01:54 PM |
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petrol pump nozzles
How do pertol pump nozzles work?
In particualr, how do they know when to stop?
some sort of sensor but how full is the tank before the sensoe kicks in? I know the nozzle end isn;t immeersed in petrol nor as far as I can see, the
filler tube is not full either? (soemthing to do with rate of flow?)
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StevieB
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| posted on 7/11/06 at 01:59 PM |
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I've often wondered the same - the little things that keep an active mind awake at night.
I concluded it's magic 
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greggors84
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| posted on 7/11/06 at 02:07 PM |
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Air pressure I reckon.
When you get a strong enough pressure coming back up the nozzle it trips the switch.
Would like to know for sure though!
Chris
The Magnificent 7!
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Sacal
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| posted on 7/11/06 at 02:34 PM |
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Straight dope
Sorry StevieB  I wont tell you about santa as well, that would really ruin your day 
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Catpuss
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| posted on 7/11/06 at 07:33 PM |
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quote:
Originally posted by Sacal
Straight dope
Sorry StevieB I wont tell you about santa as well, that would really ruin your day
I always thought it was dodgy being that overweight and only doing any exersize once a year 
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