Subject:
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Re: SSClagorpion - Compressor
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Newsgroups:
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lugnet.technic
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Date:
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Mon, 17 May 2004 21:57:08 GMT
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Viewed:
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18168 times
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In lugnet.technic, Kevin L. Clague wrote:
> In lugnet.technic, Steve Hassenplug wrote:
> The large pumps expand and contract more slowly than small pumps.
> Certainly the circumference of the seals is longer on large pistons than
> small pistons, therefore increasing friction, but I don't think that is
> enough to explain the difference.
Airflow is what causes this. The two pumps both hook up to the same size hoses
with the same size nipples, but an identical length of stroke on the larger pump
is pushing quite a bit more air than the small pump. There's a limit to how
fast air will flow through that nipple, so the larger the pump's bore, the
slower it will close when the same force is applied to the shaft.
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Message has 1 Reply:
 | | Re: SSClagorpion - Compressor
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| (...) That is absolutely right. Nice one David. It makes me think we could have high preformance pistons by playing with the variables at both ends. In practice, a boring out of the nipple hole diameter is like what boosted the horse power in my (...) (20 years ago, 20-May-04, to lugnet.technic)
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Message is in Reply To:
| | Re: SSClagorpion - Compressor
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| (...) Hi Steve, Were you able to come up with anything in your compressor experiments? The topic of compressors is an interesting one. As you know there are many many solutions to this problem. The most popular is Ralph Hempel's design that you can (...) (20 years ago, 17-May-04, to lugnet.technic)
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