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 Technic / 10528
10527  |  10529
Subject: 
Re: Reversible pneumatic engine
Newsgroups: 
lugnet.technic
Date: 
Mon, 2 Jun 2003 01:44:58 GMT
Viewed: 
3741 times
  
In lugnet.technic, Kevin L. Clague wrote:
> In lugnet.technic, Paul Krieg wrote:
> > In lugnet.technic, Kevin L. Clague wrote:
> > > Besides bipeds, I also love LEGO pneumatics.
> > > 
> > > 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.
> > 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.

I used a variation of stephenson valve gear for my adjustable 4 wheel steering
concept here http://www.lugnet.com/~469/projects/steer4

ROSCO



Message is in Reply To:
  Re: Reversible pneumatic engine
 
(...) 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 (...) (23 years ago, 1-Jun-03, to lugnet.technic)

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