Subject:
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Pneumatic Questions
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 17 Nov 2005 03:54:22 GMT
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Viewed:
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4570 times
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I am comtemplating the purchase of one of those one-way valves from the old
pneumatic sets. I was wondering, if you set up a system in which one tank was
pressure and one was vacuum, and applied both to a 2-cyl engine, would it turn
with more power than a regular engine? What I mean to describe is an engine that
is similar to the 90d phase shift 2 cyl engine that you can find on Dr. C.S.
Soh's pneumatics page, reworked so that when one side of a cylinder had pressure
applied, the other would be connected to vacuum. I realise this would involve
two switches per cyl, instead of one, which is why I am asking in the first
place. Would the extra power from the cyl be enough to drive the extra
resistance of the added switches, and end up with more power than a traditional
engine, or would I be better off just sticking to the traditional engine and
just feeding it more air faster? Sorry if this post is confusing, I am writing
it at 21:35 CST, and I've had the month of my life this week. Five days without
sleep...
Andrew Meyer
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Message has 2 Replies:
 | | Re: Pneumatic Questions
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| (...) This is a good question. When using traditional pressure only, the force producde by the air pressure on the faces of the pistons is enough to flip a switch. Just yesterday someone asked me "If instead of using pressure, you used vaccume" (...) (19 years ago, 17-Nov-05, to lugnet.technic)
| | | Re: Pneumatic Questions
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| (...) Sort of like a DPDT reversing switch arrangement? However, if you study how the LEGO pneumatic valve is built you know it's not going to work. Namely, it has a fourth exhaust port that's inaccessible. You'll have to plug up this port for your (...) (19 years ago, 18-Nov-05, to lugnet.technic, FTX)
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