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       #Post#: 901--------------------------------------------------
       Dual Cylinder Lynx Boxer Engine
       By: lynx wind Date: November 27, 2013, 1:39 pm
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       This is an engine I designed years ago and I never built.  The
       goal was to design as simple an engine as I could, fewest parts
       and simplest machining.  Many of the parts are one pass cut from
       sheet aluminum.  If anyone is interested I could develop the
       plans with dimensions and explain a bit more.
       The valve is a "bash valve" actuated by the momentum of the
       piston's side to side motion flinging it into the "penny valve".
       The engine uses a Scotch Yoke, so there is no wrist pin and the
       pistons are thin.  The engine's crankcase is sealed and can
       contain a lubricant.  Exhaust is by uniflow at the end of the
       stroke.
       The hardest part of this engine is machining the cylinder which
       would need to be done at a machine shop from steel or cast iron.
       Its not a good idea to make the cylinder from aluminum due to
       its expansion when hot.
       #Post#: 903--------------------------------------------------
       Re: Dual Cylinder Lynx Boxer Engine
       By: burnit0017 Date: November 28, 2013, 6:26 am
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       Hi, looks great, I would like to try to fabricate it. The bash
       valve solves the size scaling problem created by the spool valve
       with the design I found.
       I have all the parts needed to fabricate. Is it ok to use brass
       pipes for the cylinders with a aluminum piston and silicone o
       rings?
       [img]
  HTML http://www.anotherpower.com/board/index.php?action=dlattach;topic=869.0;attach=2736;image[/img]
       So 1 inch bore, with a about a 2 inch stroke?
       Can you post a better view of the bash valve.
       Today I am starting to fabricate the cylinder end blocks for the
       brass pipes. They should look like small hydraulic piston
       cylinders.
       #Post#: 904--------------------------------------------------
       Re: Dual Cylinder Lynx Boxer Engine
       By: lynx wind Date: November 28, 2013, 6:59 am
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       You'll want a much shorter stroke for fast running and power.
       Use teflon O-rings.  A diagonal slice with a razor will allow
       them to be installed.  Brass for cylinders is good, aluminum
       piston is perfect for lightweight.
       Give me a few days to dimension the drawings and I will post on
       the Lynx website as a fullsize pdf or I can email you.  This
       design will still require some precision machining.  No way
       around the fact that steam engines require precise machining to
       work well.
       #Post#: 906--------------------------------------------------
       Re: Dual Cylinder Lynx Boxer Engine
       By: burnit0017 Date: November 28, 2013, 9:28 am
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       Hi, I purchased a edge finder, the conical point locates the
       hole location really well. My skills are improving. 8) I am
       ordering a mill end vise today.
       I look forward to your update, Thanks for the help. Scotch
       Boxer, nice marketing name??? Need 0.5 to 1 HP, that is all my
       buck circuit can handle, 15 amps at 12 volts.
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