Subject:
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Re: Pneumatic Questions
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Newsgroups:
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lugnet.technic
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Date:
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Sat, 19 Nov 2005 01:58:04 GMT
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Viewed:
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4737 times
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In lugnet.technic, Andrew Meyer wrote:
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In lugnet.technic, Andrew Meyer wrote:
“...if you set up a system in which one tank was pressure and one was vacuum,
and applied both to a... 90d phase shift 2 cyl engine... so that when one
side of a cylinder had pressure applied, the other would be connected to
vacuum... this would involve two switches per cyl, instead of one...”
In lugnet.technic, Chio Siong Soh replied:
“...if you study how the LEGO pneumatic valve is built you know it’s not
going to work... else compressed air and vacuum (?) would be leaking from the
tanks all the time.”
Thank you Dr. Soh. I started drawing various diagrams of this hypothetical
circuit, and quickly found that it was becoming a perpetual motion machine.
Not, or course, in design or mechanics, but in impossibility. I was chasing a
chimera. The faster I drew new ideas, the faster they refuted themselves. It
was a nice dream, but it requires things that Lego just doesn’t have, namely
the sealed switch that has been longed for previously on this site. Thank
you, everybody, for your ideas on this mind exercise.
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It is possible to combine multiple switches into a release-free switch, but they
would probably be more load than a single switch used on dual ported piston.
Kevin
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Message has 1 Reply:
Message is in Reply To:
 | | Re: Pneumatic Questions
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| In lugnet.technic, Andrew Meyer wrote: "...if you set up a system in which one tank was pressure and one was vacuum, and applied both to a... 90d phase shift 2 cyl engine... so that when one side of a cylinder had pressure applied, the other would (...) (19 years ago, 18-Nov-05, to lugnet.technic, FTX)
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