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

Green Car Congress

Using the pressure from the exhaust gas from the active cylinders, the ‘idle’ cylinders could be expanded to extract more work out of the engine during partial load operation. Using the virtual simulation environment GT-Power, this cycle is applied to a 4-cylinder SI engine. —de Jong (2019).

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

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Researchers at ETH Zürich, with partners Robert Bosch GmbH, Wenko Swissauto and the Swiss Federal Office of Energy are developing a downsized and supercharged hybrid pneumatic engine that they say can deliver a fuel consumption reduction of more than 30% compared to a standard engine with the same rated power. Earlier post.).

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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. Exhaust temperature of the OP4 was 410 °C, compared to 246 °C for the baseline; the rate of exhaust enthalpy for the OP4 was 9.0

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

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The objective of this AOI is to research, develop, and demonstrate cost-competitive enabling technologies for Class 8 truck engine systems that can enable the achievement of breakthrough Brake Thermal Efficiency (BTE) using EPA certified diesel fuels while meeting the latest emission standards. turbomachinery.

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Revolutionary engine to make debut

Green Cars News

An engine that provides vehicle manufacturers with an immediate solution for low emission legislation will make its European debut at the Engine EXPO in Stuttgart. The split-cycle engine from the Scuderi Group offers high efficiency standards without the need for large investments to modify existing production processes.

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Liquid Air Energy Network forms in UK; focus on transportation and energy storage

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Air can be turned into a liquid by cooling it to around -196 °C using standard industrial equipment; 700 liters of ambient air becomes about 1 liter of liquid air, which can then be stored in an unpressurised insulated vessel. High efficiency internal combustion engine. The Dearman engine. Compressed air engines (e.g.,