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Mercedes-AMG entry-level SL 43 features electric exhaust gas turbocharger from Formula 1 for the first time in production vehicle

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The SL 43 features an M139 in-line two-liter, four-cylinder gasoline engine with an electric exhaust gas turbocharger—used for the first time in a production vehicle. This technology comes from Formula 1. In its long history, the SL has repeatedly set technological milestones.

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New Delphi Technologies 500+ bar GDi system cuts gasoline particulate emissions by up to 50%, reduces fuel consumption

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In a paper presented at the 2019 Vienna Motor Symposium this week, Delphi Technologies will unveil a new 500+ bar GDi system that can reduce particulate emissions by up to 50% compared to state-of-the-art 350 bar system without expensive engine design modifications. —Walter Piock, chief engineer, Gasoline Systems, Delphi Technologies.

Emissions 257
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Korean team develops 2L-class direct-injection hydrogen-fueled engine

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The amount of air that flows into the combustion chamber declines because of the space taken up by the gaseous hydrogen fuel, leading to lower fuel efficiency and poorer engine performance due to the backfire of the hydrogen fuel and air. 2022.04.274

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Toyota commissions Yamaha to develop hydrogen-fueled 5.0L V8; follow-on from Nov 2021 announcement

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liter V8 engine for automobiles that is fueled entirely by hydrogen. In Japan, Toyota and other automotive-related companies are about to begin a collaborative effort to expand the range of fuel options for internal combustion engines. Hydrogen: not a stand-in for gasoline. Earlier post.). —Takeshi Yamada.

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Hyundai Motor Group unveils CVVD engine technology; +4% performance, +5% fuel economy, -12% emissions

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Hyundai Motor Group has developed the first Continuously Variable Valve Duration (CVVD) technology to feature in future Hyundai and Kia vehicles. T-GDi—the first engine to feature the technology. CVVD optimizes both engine performance and fuel efficiency while reducing emissions. The technology cuts emissions by 12%.

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Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

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Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.

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FEV testing finds Transient Plasma ignition system increases fuel efficiency and decreases emissions

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liter, direct and port fueled injection, inline 4-cylinder gasoline engine commonly used in the Camry line of vehicles. The “Dynamic Force Engine” achieves one of the world’s best thermal efficiencies of 40% in gasoline powered vehicles according to Toyota.

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