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Small-displacement two-stroke H2 engine could address performance and emissions cost-effectively for recreational market; potential for Asian motor vehicle fleet

Green Car Congress

Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasoline engines. This is due to raw, externally premixed fresh charge comprising air, fuel and lube oil being short-circuited into the exhaust during the scavenging process. Oh and Plante. Click to enlarge.

Engine 329
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LiquidPiston To Unveil Compact High Efficiency Engine at 2010 SAE World Congress

Green Car Congress

It provides an air-standard analysis of efficiency, including a comparison to conventional engine technologies. For instance, intake/compression, combustion, expansion/exhaust are occurring simultaneously in separate chambers. This combination separates the working mixture into three separate volumes. Stephen Nabours et al.

Congress 268
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Michigan State University Receives $2.5M ARPA-E Award to Build Wave Disc Engine/Generator for Series Hybrid Applications

Green Car Congress

The WDG also can reduce carbon dioxide emissions by as much as 95 percent in comparison to modern internal combustion vehicle engines. In axial-flow configurations, noted Müller and co-authors in a 2004 paper, pure scavenging is a challenging task. Source: Piechna, 2004. Norbert Müller. The Wave Disc Engine. Piechna et al.

Michigan 316
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Behind Audi’s new “rightsized” efficient EA888 Gen.3B family

Green Car Congress

Audi initially deployed its turbocharged, direct injection TFSI technology in 2004; the second generation followed in 2007, followed by the third generation, currently on the market, in 2011. Highlights of the Gen2 TFSI were the Audi exhaust valve lift system and a pressure- and volume-flow-controlled oil pump. In addition to the Gen.3B

Audi 150
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Norway-US Project Developing Diesel/Biodiesel, Cool Flame Reformer and Solid-Acid Fuel Cell APU

Green Car Congress

The conditions whether cool flames can be stabilised or not is related to the heat release of the pre-reactions in comparison to the heat losses of the system. Due to the unit’s high efficiency, CO 2 emissions are substantially lower than in conventional combustion engines, and no other demonstrable exhaust is discharged—i.e.,

Norway 199
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Comparative study finds that B20 increases emission rates of a number of pollutants in both light- and medium-duty diesel engines at idle

Green Car Congress

They found that the level of emissions of regulated and unregulated pollutants in diesel exhaust depends on fuel, load, engine calibration, and exhaust aftertreatment technology. L/2004 calibration engines. L engine was operated under both 2004 and 2007 calibrations. L/2002 calibration and 6.4

Pollution 231
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Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

Green Car Congress

The first such vehicles were introduced by Volkswagen in 2003, and by 2004, they accounted for more than 17% of the Brazilian auto market. The result is more efficient combustion, cooler running engines, lower exhaust temperatures, and increased longevity of engine life.