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New split-cycle concept to control diesel HCCI combustion

Green Car Congress

Pollutant emission behavior vs. engine speed.confirms the validity of the HCPC combustion concept. Emissions are almost independent of the engine speed. Soot and HC are orders of magnitude lower than the ones of a diesel engine. emissions are almost constant and similar to those of a diesel engine.

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LiquidPiston introduces latest X-series version of HEHC rotary engine; targeting 58% peak BTE, 2 hp/lb power density

Green Car Congress

(LPI), the developer of engines based on its High Efficiency Hybrid Cycle (HEHC)( earlier post ), introduced the latest version of its X-series of rotary engines embodying HEHC at the US Department of Energy’s (DOE) 2012 Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Dearborn, Michigan.

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

Green Car Congress

Any combustible fuel can work in the Reinhardt Turbine, the limiting factor is emissions control. 2007) A review of free-piston engine history and applications. Applied Thermal Engineering , Volume 27, Issues 14-15, Pages 2339-2352. 1957) The automotive free-piston-turbine engine (SAE 570051). Mikalsen R.,

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