Air Products to supply industrial gases to INEOS Bioenergy waste-to-ethanol plant
Embraer and GE successfully conclude bio-jet fuel tests; potential to explore higher blend levels

Achates Power to present fuel efficiency results of its two-stroke opposed piston engine at SAE 2011 Commercial Vehicle Engineering Congress

Achates Power, the developer of a two-stroke, compression-ignition (CI) opposed-piston (OP) engine (earlier post), will detail the Achates Power two-stroke opposed-piston (OP) engine architecture and reveal its performance and emissions results in a medium-duty application in a paper to be presented at SAE the 2011 Commercial Vehicle Engineering Congress (paper 2011-01-2221).

During his presentation, CEO David Johnson will discuss OP engine advantages and challenges, describe methods used to leverage the advantages and minimize challenges, highlight test and analytical methods, and provide cost, weight and complexity reductions of the engine.

Highlights include testing, analysis and results that conclude the Achates Power engine:

  • is more efficient, demonstrating a fuel efficiency improvement by more than 19% compared to today’s best diesel engines;

  • is clean, with engine-out emissions that are compatible with current and future standards; and

  • reduces costs, weight and overall complexity of the engine with 40% fewer parts due to elimination of the cylinder head and valvetrain

During the same session, Dr. Randy Herold, Achates Power senior staff engineer, will present the thermodynamic benefits of opposed-piston two-stroke engines (paper 2011-01-2216).

The SAE ComVEC is the first of several conferences this fall where Achates Power executives will present their demonstrated results. Achates Power will also speak at the upcoming Der Arbeitsprozess des Verbrennungsmotors (Working Process of the Internal Combustion Engine), ASME Internal Combustion Engine Fall Technical Conference, and Directions in Engine-Efficiency and Emissions Research (DEER) Conference.



For a company that has been around since 2004, it's pretty remarkable how they have yet to provide any actual products for people to see.


IT's about time!

I originally advocated doing exactly this to power a genset about ten years ago.

OEMs are slowly catching up to my proposals.


Would it work as a small genset for PHEVs?


"Would it work as a small genset for PHEVs?"

Why not?, but you dont need much torque for a genset engine in a serial hybrid.


You can design the engine and generator to be highly efficent if they run at a constant speed. There is the potential for a 100+ mpg car here if done right. (With no loss of performance.)

The comments to this entry are closed.