Achates Power

  • Achates 2.7-liter opposed-piston gasoline compression-igntion engine in Ford F-150 test pickup truck

    One year ago at the Detroit auto show, a company called Achates Power unveiled models of a new kind of internal-combustion engine. With opposed pistons in the middle and crankshafts at either end, it was sufficiently different to startle most visitors who paid attention. That engine came with some audacious claims, too: How about an EPA combined fuel-economy rating of 37 mpg when fitted in a full-size Ford F-150 pickup truck? DON'T MISS: Full-size pickup truck that gets 37 mpg? Achates says yes One year later, at this week's 2018 North American International Auto Show in Detroit, Achates...

  • Achates opposed-piston two-stroke diesel engine, as it would be packaged for truck installation
    Full-size diesel pickup truck that gets 37 mpg? Achates says yes

    Could a full-size pickup truck ever get a fuel-economy rating of 37 mpg? California-based Achates Power believes it can, and its novel engine uses a design that dates back to the earliest days of internal combustion to do so. The company announced its two-stroke, opposed-piston diesel engine for...

  • Achates opposed-piston two-stroke diesel engine, as it would be packaged for truck installation
    Achates Closer To Production Of Radically Efficient Two-Stroke Truck Diesel

    Suppose you could take an old engine concept discarded in the 1970s, add modern fuel metering and injection control hardware and software, and offer a compact powerplant that cuts the fuel consumption of today's diesel truck engines by a third.. That's the promise of Achates Power, which has been...

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