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Bodmer’s Sliding Cylinder Engine

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Dave R14/05/2010 10:42:49
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2 forum posts
I have just got the castings and drawings for the above, has anyone else tried this one?
JasonB14/05/2010 13:23:58
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25215 forum posts
3105 photos
1 articles
Not tried it but its a nice looking engine. If you don't have the original build series articles they are reprinted in his book and worth having.
 
If its of any help this homepage of a german builder has a lot of pictures of constrution if you click the "zum bauburicht" link at the bottom of this page, the other link takes you to photos of the finished engine and a video of it running
 
Jason
Dave R17/05/2010 14:19:00
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2 forum posts
thanks very much, there is nothing like some pictures to follow, the words are less important. Thanks for the reply
Dave
JasonB17/05/2010 14:23:29
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25215 forum posts
3105 photos
1 articles
Just put the web page into a translator like Babblefish, it comes out quite well but a few of the technical terms can be a bit amusing
 
Jason
tony bastick29/04/2012 23:00:15
15 forum posts

Hi,iv just started the restoration and overhall on one of these engines, does anybody know how to set the valve timing? Tony

NJH30/04/2012 10:37:02
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2314 forum posts
139 photos

Hi Tony

Anthony Mount gives details of the valve settings in his book "Historic Engines Worth Modelling : Volume 2 " - click here for info. He usually exhibits at the Bristol Exhibition in August and I'm sure he would be willing to advise you.

Dave I too am attracted to this engine although the practicallity of a design which moves a heavy cylinder rather than a realtively light piston is questionable! Anyway I must first finish some of my outstanding ( or maybe that should be longstanding!! ) projects!

The finish achieved on the example in Jason's link is quite exceptional.

Regards

Norman

Ian S C30/04/2012 11:59:27
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7468 forum posts
230 photos

I wonder if the idea of moving the cylinder was to use gravity to supply the power on the down stroke? Ian S C

NJH30/04/2012 12:17:24
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2314 forum posts
139 photos

Hi Ian

I understand that the steam is fed down the ( hollow) cenral column and directed by a piston valve in the cylinder to either the top chamber or bottom chamber of the cylinder which has a fixed "piston" at its centre. The exhaust is similarly directed to the bottom of the central column.

Norman

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