Subject:
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Re: Reversible pneumatic engine
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Newsgroups:
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lugnet.technic
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Date:
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Sun, 1 Jun 2003 18:00:13 GMT
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Viewed:
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2122 times
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In lugnet.technic, Paul Krieg wrote:
> In lugnet.technic, Kevin L. Clague wrote:
> > Besides bipeds, I also love LEGO pneumatics.
> >
> > Doug Carlson and I have been trying to work on techniques for making single
> > piston pneumatic engine with little or no flywheel. Doug has been having better
> > luck than I but neither of us have acheived the goal.
> >
> > In attempt to have a success at something, I decided to work on a project I
> > thought of on Thursday. A reversible pneumatic motor.
>
> > To my knowledge this is the first reversible pneumatic engine.
> >
> > Forward:
> > http://www.brickshelf.com/gallery/kclague/Computing/p5280040.jpg
> >
> > Reverse
> > http://www.brickshelf.com/gallery/kclague/Computing/p5280041.jpg
> >
> > The difference between the two is the positioning of the switch handles on the
> > multiplexers.
> >
> > PLMKWYT
> >
> > Kevin
>
> Kevin,
> This is truly great! At the moment I barely understand it at all. I must build
> one. Reversible valve gears have interested me for some time. This is not the
> first reversible engine. I will soon upload photos to Brickshelf. My version
> is from '93, I think. Anyway, my ambition has been to produce something like a
> Walschaert valve gear. The link and radius rod have been impossible to do (so
> far). :-) Another goal of mine has been to build an engine that can be started,
> stopped, and reversed, all by using one control or lever.
Hi Paul,
I look forward to seeing your reversible engine.
I looked at the Walschaert valve gear. Wow, that is hard for me to
understand, even with animation.
With longer tubes, I could have easily hooked the two multiplexers to the same
linkage which will give you forward, stop and reverse.
> Best regards,
> Paul
Cheers,
Kevin
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Message has 3 Replies:
 | | Re: Reversible pneumatic engine
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| (...) It's here, among Paul's other creations: (URL) I looked at the Walschaert valve gear. Wow, that is hard for me to (...) Yes, it's truly marvellous what the old locomotive engineers could do with just mechanical linkages. (21 years ago, 2-Jun-03, to lugnet.technic)
| | | Re: Reversible pneumatic engine
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| (...) It can be seen here at CSSOH'S LEGO PNEUMATICS PAGE by scrolling down a little... (URL) here at my Brickshelf gallery which is still under construction and may not be public yet... (URL) is based on a very simple reversing gear which can be (...) (21 years ago, 2-Jun-03, to lugnet.technic)
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Message is in Reply To:
| | Re: Reversible pneumatic engine
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| (...) Kevin, This is truly great! At the moment I barely understand it at all. I must build one. Reversible valve gears have interested me for some time. This is not the first reversible engine. I will soon upload photos to Brickshelf. My version is (...) (21 years ago, 1-Jun-03, to lugnet.technic)
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