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1. 

   Joined: Jul 8, 2008
   Posts: 630

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   vrod64

   Member

   from Katy,Texas

   <?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o>
   http://www.engineeringtv.com:80/video/The-Grail-Engine-from-Grail-Eng;Society-of-Automotive-Engineers <o></o>
   
   
   WHO WOULD HAVE THOUGHT TO PUT A VALVE IN THE CENTER OF A PISTON. <o></o>

    

   vrod64, May 26, 2012

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2. 

   Joined: Jan 23, 2006
   Posts: 3,309

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   R Pope

   Member

   from Saskatchewan

   One of the best early aero engines, the French Gnome rotary, had just such a system before WWI.

    

   R Pope, May 26, 2012

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