How does the air compressor which fills up my bicycle tyres 'compress' the air?

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Offline Chemistry4me

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How does the air compressor which fills up my bicycle tyres 'compress' the air?
So how does it do it?  [:-\]

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lyner

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c4m
Are you waiting for someone to shoot themselves in the foot? Do you have some alternative slant? (Before I give the 'obvious' answer).

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Offline Chemistry4me

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Opps sorry, I didn't explain myself properly.

I don't mean one of these:



Or this:



I mean something like this:



Apologies for the misunderstanding. [:I]

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Offline Bored chemist

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By the look of it, it's a diaphragm pump or a piston pump
http://en.wikipedia.org/wiki/Diaphragm_pump
The piston pump is much the same as the ones you have pictured, but it uses a motor and a crank to drive the piston.A bit like this steam engine,
http://en.wikipedia.org/wiki/File:Steam_engine_in_action.gif
but in reverse.
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lyner

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A lot of short strokes (limited by the diameter of the crank) rather than a few long ones.

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Offline Bored chemist

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A lot of short strokes (limited by the diameter of the crank) rather than a few long ones.
As the actress said to the bishop.
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lyner

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There's always ONE!

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Offline Bored chemist

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Please disregard all previous signatures.

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lyner

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I couldn't disagree with you BC.

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lyner

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I also mentioned a crank, earlier, BC.

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Offline Bored chemist

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I couldn't disagree with you BC.
Past evidence suggests that you jolly well can.
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lyner

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I do my best. But, in this case even I can't manage it!