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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. Click to enlarge.

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Achates Power continues development of opposed-piston technology for US Army vehicles

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The family of engines strategy uses a common power cylinder system across several different engine variants to address a range of power and torque requirements in order to serve multiple military vehicles with a common architecture. In December 2020, Achates Power announced that their 10.6L

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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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Concept: Downsized and Supercharged Hybrid Pneumatic Engine for 30%+ Reduction in Fuel Consumption

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Before realizing the design of a hybrid pneumatic engine (HPE) in hardware, the researchers evaluated the different pneumatic engine modes (motor mode and pump mode) associated with both two-stroke and four-stroke implementations of the pneumatic concept. The hardware concept. Dönitz et al. Test bench setup.

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Grail Engine Adopts Enerpulse Pulse Plugs for Forced Semi-Homogeneous Charged Compression Ignition in Concept Two-Stroke Engine

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HCCI is a combustion regime in which well-mixed fuel, exhaust gas and air are compressed to the point of auto-ignition. Unlike a spark ignition gas engine or diesel engine, HCCI produces a low-temperature, flameless release of energy throughout the entire combustion chamber.

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Scuderi Releases Video Footage of Running Split-Cycle 1L Prototype

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The two-minute video, the first to show the naturally-aspirated one-liter gasoline prototype engine in operation, provides a view of the engine as it undergoes testing, proving the concept of Firing After Top Dead Center. A split-cycle engine is essentially an air compressor on one side with a combustion chamber on the other.

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Start-up Eco-Motive developing dual-fuel “H” engine; parallel, independently fueled piston banks

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The engine was invented by Herns Louis, veteran of more than 30 years in the parts manufacturing industry ranging from automotive to aerospace, specializing in computerized parts machining. The technology can be easily adapted to existing engines, making the implementation very cost effective. Concept Engines Engines Natural Gas'

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