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Motiv Engines introduces 2nd-generation split-cycle concept; MkII Clarke-Brayton heavy-duty engine being designed for LNG

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Section of the MkII Clarke-Brayton split-cycle engine. Motiv Engines, LLC introduced the second-generation of its engine concept dubbed the MkII Clarke-Brayton Engine, which it intends to develop into a heavy-duty on-highway engine fueled by liquid natural gas (LNG). Note the three different cylinder sizes.

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GM reveals new Ultium Drive EV motors designed and developed in-house with GM propulsion software

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At the 2021 Mackinac Policy Conference, General Motors President Mark Reuss revealed GM’s group of three all-new motors that will power its Ultium-based EVs. Designed by GM, the 180kW front-drive motor, 255kW rear- and front-drive motor and 62kW all-wheel drive assist motor are part of Ultium Drive. Stator family. —Mark Reuss.

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CPT launching water-cooled electric supercharger for commercial diesel engines

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At the 17 th Supercharging conference this week in Dresden, Controlled Power Technologies (CPT) will launch what it says is the first water-cooled electric supercharger developed for “quasi-continuous” boosting of commercial diesel engines, including those developed for off highway applications. Cobra electric supercharger.

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LiquidPiston unveils 70cc rotary gasoline engine prototype embodying HEHC; power dense, low-vibration

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LiquidPiston X1 engine features three separate combustion chambers creating 3 power strokes per revolution for high power density. Dr. Alexander Shkolnik, President and Co-Founder of LiquidPiston, is presenting the engine in a paper at the SAE International/JSAE 2014 Small Engine Technology?Conference Source: LPI. " x 6.2"

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MAHLE Powertrain wins IMECHE’S Dugald Clerk Prize for innovative pre-chamber ignition technology; Active MJI

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An author partnership from MAHLE Powertrain in the US has been recognized for its work on pre-chamber ignition, presented at the Institute of Mechanical Engineers’ Internal Combustion Engines and Powertrain Systems conference in December 2019. Active MJI has previously demonstrated 20-30% improvements in engine efficiency.

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Scottish Enterprise project converting train to hydrogen power

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Scottish Enterprise, Transport Scotland and the Hydrogen Accelerator, based at the University of St Andrews, have appointed Arcola Energy and a consortium of industry leaders in hydrogen fuel cell integration, rail engineering and functional safety to deliver Scotland’s first hydrogen powered train.

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MIT team developing 1MW motor for electric aviation

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A team of MIT engineers is developing a 1MW motor that could be a key stepping stone toward electrifying larger aircraft. The motor under design is a 1-MW, air-cooled, outer-rotor, Halbach-array PMSM. Electric Machine Design Specifications Metric Value Units Power 1 MW Specific power 17 kW/kg Speed 12500 RPM Shear stress 5.3

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