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Volkswagen continues to optimize its EA888 workhorse engine; fourth evolution in 2022 Golf GTI and R

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Volkswagen has continued to evolve its small displacement turbocharging technology with each new engine generation. In 2022, the fourth evolution of the EA888 pushes state-of-the-art turbocharged engine design further still; it is one of the most advanced Volkswagen engines ever built. liters (1,984 cc). 1 for the GTI.

Engine 397
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Toyota implements Atkinson cycle in non-hybrid ESTEC engine; up to 38% thermal efficiency and improved fuel economy

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Performance of the new ESTEC engine (1NR-FKE) compared to the current 1NR-FE engine applied in the Yaris. Engineers at Toyota have developed an approach to applying the Atkinson cycle—used in the engines in Toyota hybrids since 1997—for engines in conventional, non-hybrid vehicles. Yamada et al.

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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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At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 Cost of the new engine relative to gasoline baseline. Earlier post.). l/100 km) for a vehicle of that size.

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ORNL-developed ACMZ aluminum alloy promises better fuel economy

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Researchers at ORNL, in partnership with FCA US and Nemak USA, have developed a new suite of aluminum-based alloys that could give automakers a boost in achieving ambitious fuel economy goals. Current alloys inhibit engine efficiency because they soften at the peak temperatures present in highly efficient advanced engines.

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Pinnacle’s opposed-piston scooter engine can meet NOx target with lean operation and ignition delay; little fuel economy hit

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Further, Pinnacle noted, recently developed hardware designed for additional lean limit extension is under test. For the target market (the Asian scooter market), the low NO x capability of the Pinnacle engine provides a significant cost benefit to manufacturers.

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Sandia, TUD optical diagnostic helps reduce emissions while improving fuel economy

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Initially, the researchers have focused on the combustion of liquid fuel sprays found in engines, where the extreme pressures and temperatures create an environment that is optically challenging. Imaging flames at temperatures and pressures found in engines can be difficult because of a phenomenon called “beam steering.”

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ORNL-developed ACMZ aluminum alloy promises better fuel economy

Green Car Congress

Researchers at ORNL, in partnership with FCA US and Nemak USA, have developed a new suite of aluminum-based alloys that could give automakers a boost in achieving ambitious fuel economy goals. Current alloys inhibit engine efficiency because they soften at the peak temperatures present in highly efficient advanced engines.