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Concept Engine: Ilmor Engineering to Show Cutaway of 5-Stroke Engine at Engine EXPO

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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.

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New split-cycle concept to control diesel HCCI combustion

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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. —Musu et al., SAE 2010-01-2107.

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ECONAMIQ: Flexible over-expansion with cylinder deactivation can reduce ICE fuel consumption by up to 20%

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The new ECONAMIQ technology builds on existing concepts such as cylinder deactivation and variable valve timing with a unique patented combination of routing gasses for increased system efficiency. The company presented its first results at the annual ASME ICEF (Internal Combustion Engine Fall) conference in Chicago.

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Achates Power developing light-duty two-stroke opposed-piston diesel engine: the OP4

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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. liter OM651 Euro 5 engine, said Fabien Redon VP, Technology Development at Achates Power, the OP4 design shows a modeled 13.5%

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DOE to award $55.8M for advanced vehicle technologies; $35M for fuel cell and hydrogen

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The component materials must be capable of being manufactured at a lower cost and with a smaller environmental footprint when compared to present technologies. Engines must be capable of meeting current emission standards and technologies developed must be demonstrated on an engine.

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Motiv Engines introduces 2nd-generation split-cycle concept; MkII Clarke-Brayton heavy-duty engine being designed for LNG

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It expands all the way to ambient pressure before the exhaust stroke. The power is produced in almost a 50-50 split between the combustion (central) and exhaust (largest) pistons. Transfer from the combustion cylinder to the exhaust cylinder takes place when the exhaust cylinder volume is minimal. and O’Malley, E.

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ORNL Researchers Find Thermochemical Exhaust Heat Recuperation In Internal Combustion Engines Could Provide Substantial Boosts in Second-Law Efficiency

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When reforming is not used, the fuel and exhaust pass through CV2 unchanged. The basic concept of TCR involves using exhaust heat to promote on-board reforming of hydrocarbon fuels into syngas (a mixture of carbon monoxide and hydrogen). The syngas is then burned in the engine in place of some or all of the original fuel.

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