LiquidPiston's "inside-out" rotary X-Engine wins Army research contract
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Rotapower® Generator Prototype
Amazon.com: Rotary Engine Model, Desktop Engine Metal Machinery Model Kit, Mini DIY Assembly Electric Engine Model, Real Reduction Engine, Up to 600 RPM, for Physics Science Experiment : Toys & Games
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FEV Wankel Range Extender presented at SAE 2009 World Congress [5] Rys.... | Download Scientific Diagram
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Revolutionary: Mazda brings back the rotary engine ... in an electric car?
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Mazda MX-30 EV Is Reviving The Rotary Engine As A Power Generator - SlashGear
Realization of a Novel Free-Piston Engine Generator for Hybrid-Electric Vehicle Applications | Energy & Fuels
Revolutionary: Mazda brings back the rotary engine ... in an electric car?