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Concept: Compact Two-Cycle, Co-generating Piston-Driven Turbine to Deliver 60+% Efficiency

Green Car Congress

The engine components are contained within a sphere. The first cycle is a “conventional” combustion engine process using a combustible fuel with the crankless (i.e., free) pistons converting their linear motion to rotary via a sinus disc. 2007) A review of free-piston engine history and applications. Mikalsen R.,

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