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Westport and GTI awarded $900,000 to advance natural gas combustion technology; ESI with high frequency corona discharge ignition

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together with the Gas Technology Institute (GTI), has been awarded US$900,000 towards a program to advance state-of-the-art natural gas combustion technology. The technology enables a “downsized” natural gas solution that is cost-competitive while providing similar levels of power, torque, and fuel economy to a larger diesel engine.

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Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

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Resources (DOE will publish Merit Review presentations on its website.). Taking learnings from LTD and LDECC programs to utilize PCCI (pre-mixed charge compression ignition) and high charge flow operation. Michael Ruth (2014) “ATP-LD; Cummins Next Generation Tier 2 Bin 2 Diesel Engine” DOE 2014 Annual Merit Review, Project ACE061.

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

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Schematic of downsized and supercharged four-stroke hybrid pneumatic spark injection engine. The reduction in fuel consumption is obtained mainly through enabling the effective use of a heavily downsized engine, rather than from regenerative efficiency. The major part of this gain is due to downsizing the engine. Earlier post.).

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Co-Optima releases capstone report on first 4 years of work

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compression ratio, extent of downsizing, etc.). The findings indicate that all of the top-performing blendstocks have the potential to reduce life-cycle greenhouse gas emissions by at least 60% compared to petroleum-based fuels. At a 30% blend level, this equates to an 18% reduction in emissions for the finished fuel.

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Ricardo’s “deep” Miller cycle concept: Magma

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In its new report on downsized and boosted gasoline engine technologies ( earlier post ) the ICCT highlighted Ricardo’s work on an “extreme” Miller cycle concept with high (13:1) compression ratio (CR) and central direct injection in a downsized boosted engine. Resources. 1 in the baseline engine to 13.0:1

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KAUST team develops method for reliable prediction of abnormal ignition phenomena

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Advanced low-temperature-combustion (LTC) strategies of downsized and boosted engines are capable of offering ultra-low emissions and higher efficiencies. In a recent study, published in the journal Combustion and Flame , they report that their predictions implicate the composition and temperature of the initial mix of fuel and air.

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MECA report assesses technology feasibility for heavy-duty diesel trucks to meet lower NOx standards by 2024

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g/bhp-hr in low load operation using the proposed low load certification cycle being developed at Southwest Research Institute under a contract from the California Air Resources Board (CARB). The technologies outlined are either commercial or market-ready options that can be deployed on vehicles by model year 2024 to achieve 0.05

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