Concept Engine Diesel Engine 
Green Car Congress
OCTOBER 25, 2010
Turbocharged HCPC engine scheme. A team from Universita degli Studi di Pisa (Italy) and Rolf Reitz at the University of Wisconsin-Madison are proposing a novel combustion concept—Homogenous Charge Progressive Combustion (HCPC)—based on a split-cycle principle to control HCCI combustion in diesel-fueled engines.
Green Car Congress
MAY 8, 2014
Section of the MkII Clarke-Brayton split-cycle engine. Motiv Engines, LLC introduced the second-generation of its engine concept dubbed the MkII Clarke-Brayton Engine, which it intends to develop into a heavy-duty on-highway engine fueled by liquid natural gas (LNG). Note the three different cylinder sizes.
Green Car Congress
MAY 7, 2009
Rendering of the Ilmor 5-stroke concept engine. Ilmor Engineering will present a new cutaway version of the Ilmor 5-stroke concept engine at the upcoming Engine EXPO 2009, 16-18 June, in Stuttgart, Germany. The 5-stroke concept engine is a self-funded proof of concept. Click to enlarge.
Green Car Congress
MARCH 14, 2011
FEV) a leading developer of advanced powertrain and vehicle technologies, will exhibit a lean burn engine concept at the SAE 2011 World Congress that has been modified to run on Compressed Natural Gas (CNG). FEV developed ATAC more than a decade ago, targeting large-bore engines in stationary and heavy-duty applications.
Green Car Congress
APRIL 17, 2013
The OP4 light-duty opposed-piston diesel. Achates Power, which is developing a family of two-stroke, compression-ignition (CI) opposed-piston (OP) engines, has designed and is developing a light-duty diesel concept engine, the OP4. Achates started with a 1.06L/cylinder engine configuration, then moved up to a 1.6L/cylinder
Green Car Congress
OCTOBER 31, 2009
Schematic model of a wave disk engine, showing combustion and shockwaves within the channels. The wave disc engine, a new implementation of wave rotor technology, was earlier developed by the Michigan State group in collaboration with researchers from the Warsaw Institute of Technology. The Wave Disc Engine. Source: MSU.
Green Car Congress
OCTOBER 18, 2012
Isuzu D201 35 hp diesel engine (left) and the LiquidPiston 40 hp X2 Prototype (right). Other features of the X2 include: Quiet operation: engine lacks poppet valves and over-expansion minimizes exhaust noise. HEHC thermodynamic advantages relative to the diesel and the Otto cycles. Click to enlarge. LiquidPiston, Inc.
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