Achates Power addresses commercial truck mileage and emission standards

In a private interview with Torque News at the CAR Management Business Seminars 2011, David Johnson, President and CEO of Achates Power, discussed the role that its engine technologies using opposed pistons will contribute toward lower emissions and better fuel economy for commercial trucks.

In a timely interview one week before President Obama announces the first U.S. CO2 emission rules for heavy trucks in Springfield, VA today, Achates Power, showed why it participated in the 2011 CAR Management Business Seminars in Traverse City, Michigan. Based in San Diego, California, Achates develops radically improved internal combustion engines.

Its mission, according to CEO and President, David Johnson, is to build fundamentally better engines to respond directly to the critical environment and economic needs of the global transportation industry. When asked about brake thermal efficiency, he noted that gasoline IC engines are in the 30-33% range; diesel engines are in the 35-40% range; and the Achates engine is in the 45-50% range.

When asked whether Achates' focus was on autos or trucks, his reply was that the commercial truck industry has the greater need; and it stands to gain the most in efficiency, mileage and emission reductions.

Achates Power Engine Technology

According to Achates website, and based on J.-P. Pirault, and M. Flint, Opposed Piston Engines: Evolution, Use, and Future Applications, SAE International, 2009, throughout the 20th century, when the utmost fuel, weight and volume efficiencies were required to propel aircrafts, ships and vehicles, an unconventional type of compression ignition engine was used: opposed-piston engines.

However, the Achates engine is described as a two-stroke diesel; hence, the natural inclination toward trucks. That also makes it a compression-ignition engine, but one that that depends on uniflow scavenging.


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