Open Source Piston Engine Conceptual Design

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  • Exhaust gas recirculation - reduces peak in-cylinder temperatures, reducing NOX [1]
  • Electronic valves - eliminates need for camshaft and rockers, allowing higher simplicity, and 30% efficiency gain.
  • DIY campless - [2]
  • Camless engines are not yet available, outside of some large diesels. [3]
  • Free piston engine - drives a working fluid directly, without crankshaft
  • Stelzer engine - 2 opposing combustion chambers with middle pumping chamber. [4]


References