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new models at carmakers

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rotary mechanism   I'll introduce you an amusing mechanism.

 

Coates Spherical Rotary Valve engine World's most advanced combustion engine is the Coates Spherical Rotary Valve Combustion Engine. The Coates engine eliminates: poppet valves, guides, springs, cotters, cam followers, rockers, camshafts and engine oil from the valve train .....


The Buffer Chamber Engine And Its Valve Timingit adds an intake buffer chamber and an exhaust buffer chamber


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