Subject:
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Re: pneumatic cylinder: why not hydraulic ??
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 8 Apr 2004 07:21:04 GMT
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Viewed:
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4942 times
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purpledave@maskofdestiny.com (Purple Dave) wrote in
<Hvtrvs.sBv@lugnet.com>:
> In lugnet.technic, Harro de Jong wrote:
> > 7. if you used hydraulics, a cylinder would extend or retract fully
> > with one stroke of the pump.
>
> Not necessarily. Assuming both cylinders are the same size, a full pump
> cylinder stroke will only result in a full working cylinder stroke if
> the working cylinder doesn't have significantly more resistance than the
> pump cylinder. If the working cylinder is trying to lift a heavy load,
> two or more pumps might be required to generate enough psi to lift the
> load.
And where would you leave all that fluid? Fluids aren't compressible (yeah,
they are, but so much less than air that I'm close enough for government
work).
--
Harro de Jong
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Message is in Reply To:
 | | Re: pneumatic cylinder: why not hydraulic ??
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| (...) Not necessarily. Assuming both cylinders are the same size, a full pump cylinder stroke will only result in a full working cylinder stroke if the working cylinder doesn't have significantly more resistance than the pump cylinder. If the (...) (22 years ago, 7-Apr-04, to lugnet.technic)
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