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 01:19:26 GMT
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Viewed:
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4561 times
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In lugnet.technic, Andrew Meyer wrote:
> 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.
I'm glad if I saved you some bucks.
The fourth exhaust port is a necessity (for the cylinders to work) and a
nuisance (being inaccessible). I first learned about it from Erik Brok's site.
In real-life pneumatics, this port would be brought out and could be used to
control other parts of the pneumatic circuit for various types of logic
operations. Kevin would have loved that, I'm sure.
You have to constantly remind yourself that this port exists although you cannot
see it!
CSSoh
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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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