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How a cylinder pump works (30 Frih$)

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Trickster
I want to know precisely how a pump works, like a bike pump..
when you press all air out the end and the way it doesnt gets sucked back in again.. a little animation wouldn't be bad where you can see the air flow Smile
just too lazy to search the answers myself Laughing so this should be easy frih$
Captain Fertile
You can try this.

Go Here: http://www.animatedsoftware.com/pumpglos/tirepump.htm

or even,

Quote:
Bicycle pumps (the ones we use when fixing a flat bicycle tyre) are different from fans because there are no rotating blades to move the air, and the gas becomes pressurised at one end of the pump. Bicycle pumps have a variety of outlets and valves for the passage of air; all of them involve a piston set inside the casing which takes air in at one end and forces the air into the tyre at the other, using a piston that slides inside the pump-housing. A valve allows the air to enter the top of the pump when the piston is pushed down. Another valve allows the new air to enter the bottom of the cylinder, which closes when pressure is applied. The final valve admits the air into the tyre.

Source: http://www.bbc.co.uk/dna/h2g2/A476921
Trickster
hmm i guess with that info and some inspections of a pump i just found.. this will be okay thx
Captain Fertile
Thanks for the donation, as always I am glad to be of service. Very Happy
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