Comments by "John Burns" (@johnburns4017) on "This 3D Printed Rotary Engine Is Genius - Mazda RX-7" video.

It is a visual medium.
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The one power pulse per rev can be improved upon by altering the gear ration between the rotor and output shaft. Then maybe inefficient power sapping & space consuming gearboxes may not be used by just adding rotors to the engine.
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Oshe Shango With a rotary?
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@blitzwing1 Using hydrogen it is 23% more efficient. If we move over to hydrogen for heavy vehicles like: ships, trains, buses, trucks, etc, then the Wankel must the first choice. Also near zero emissions.
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If you double the displacement of a 1.3 litre rotary engine on paper to 2.6 litres because it has twice the power pulses per revolution, then the same should be done for two-stroke piston engines.
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@GoldSrc_ Did you take any notice of the vid? Hydrogen overcomes the disadvantages of the gasoline rotary. All the fuel is burnt.
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OK hydrogen solves the rotary problem of not all the fuel is burnt with unburnt fuel being pushed into the exhaust. This gives poor emissions as well as poor economy as all the fuel is not being burnt, in short wasted. Hydrogen is quicker to ignite and with the flame propagating very fast burning all the hydrogen fuel in the combustion chamber. Also it only needs a simple ignition and injection system. But as yet hydrogen is not freely available. Does LPG or compressed Natural Gas also solve the rotaries problems as well. These fuels are readily available. I don't think Jason mentioned these fuels.
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???
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Pistons are silly.
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