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Snow Holly Works double acting internal combustion engines?

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  • Snow Holly Works double acting internal combustion engines?

    While browsing YT I came across a couple of rather interesting large stationary engines right at the end of THIS VIDEO The two big Snow Holly Works engines pretty well finish up the video from 8:40 and on.

    Also a rather nice motorcycle made from two P&W cylinders with a custom crankcase starting at 2:40.

    The idea of a twin opposed engine that uses the double acting cylinders to generate more like a four cylinder struck me as being pretty darn slick. In particular I love how the camshaft and rocker arms are arranged around the long cylinder assembly almost like valving on a flute, clarinet or saxophone. Brian, have I found your next project engine?

  • #2
    Believe that this is the same type and manufacturer of the engine in the above post.
    https://www.youtube.com/watch?v=dhpwbBwSIAs

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    • #3
      Same engine as this model built from plans in HSM by Doug Kelly;

      https://www.youtube.com/watch?v=XOFZwxIVapg
      Jim H.

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      • #4
        Jeez!!!---What a monster.
        Brian Rupnow

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        • #5
          The guys at Northwest Michigan Engine and Threshers Club (Buckley, Mi) have an 1,100hp Snow that they are restoring. I do not believe it is yet operational, but they did have it turning over on compressed air last year.

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          • #6
            Richard Pearse of NZ built an aero engine in 1903 with double acting cyclinders....

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            • #7
              It must have a pretty good muffler system because I can't hear it run.

              JL.....

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              • #8
                Originally posted by JCHannum View Post
                Same engine as this model built from plans in HSM by Doug Kelly;

                https://www.youtube.com/watch?v=XOFZwxIVapg
                Thanks for the link JC. It's every bit as great a design in model form as I thought it might be.

                And Thanks to you too Reggie for the extra video.

                They sure didn't think small back in that time frame did they......

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                • #9
                  Originally posted by BCRider View Post
                  They sure didn't think small back in that time frame did they......
                  This one might be a bit bigger than the Snow Engine: https://www.youtube.com/watch?v=F8T1hRliDLA
                  William Tod Engine 500 tons? Currently preserved in the Sharron/Youngstown Ohio area.

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