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Achates Power developing light-duty two-stroke opposed-piston diesel engine: the OP4

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The OP4 light-duty opposed-piston diesel. Achates Power, which is developing a family of two-stroke, compression-ignition (CI) opposed-piston (OP) engines, has designed and is developing a light-duty diesel concept engine, the OP4. Diesel Engines Fuel Efficiency' Click to enlarge. Click to enlarge.

Light 225
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Grail Engine Adopts Enerpulse Pulse Plugs for Forced Semi-Homogeneous Charged Compression Ignition in Concept Two-Stroke Engine

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HCCI is a combustion regime in which well-mixed fuel, exhaust gas and air are compressed to the point of auto-ignition. Unlike a spark ignition gas engine or diesel engine, HCCI produces a low-temperature, flameless release of energy throughout the entire combustion chamber. Elements of the Grail Engine.

Engine 186
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DOE to award $55.8M for advanced vehicle technologies; $35M for fuel cell and hydrogen

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This new funding opportunity announcement will be available in early February. Area of Interest (AOI) 6: Electric Drive Vehicular Battery Modeling for Commercially Available Software. Battery models for this technical AOI will be made freely available to the public for battery pack design and analysis. turbomachinery.

Fuel 150
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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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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). It expands all the way to ambient pressure before the exhaust stroke.

Engine 345
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Liquid Air Energy Network forms in UK; focus on transportation and energy storage

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Heat recovery could also be achieved using the Ricardo split cycle engine, a novel internal combustion engine design that incorporates liquid nitrogen to capture exhaust heat and increase fuel efficiency. The Dearman engine. Compressed air engines (e.g., Compressed air vs. liquid air. Source: DEC.

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LiquidPiston introduces latest X-series version of HEHC rotary engine; targeting 58% peak BTE, 2 hp/lb power density

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Isuzu D201 35 hp diesel engine (left) and the LiquidPiston 40 hp X2 Prototype (right). Other features of the X2 include: Quiet operation: engine lacks poppet valves and over-expansion minimizes exhaust noise. HEHC thermodynamic advantages relative to the diesel and the Otto cycles. Click to enlarge.

Engine 312