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Achates Power continues development of opposed-piston technology for US Army vehicles

Green Car Congress

JANUARY 28, 2021

Achates Power was recently awarded a $5-million contract from the US Army to expand the family of opposed-piston engines for military vehicles. The project, awarded in late-2020, builds upon the success of the Advanced Combat Engine (ACE). Major, vice president, Achates Power. Achates Power is partnered with Cummins, Inc.

Power

Power Powered Vehicles Exhaust

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

Green Car Congress

OCTOBER 18, 2012

Expected realized brake efficiency for the X2 is 58% (peak) and 50% at partial load; power density is targeted to be around 2 hp/lb. Other features of the X2 include: Quiet operation: engine lacks poppet valves and over-expansion minimizes exhaust noise. Internal cooling with air or water (Rankine). Click to enlarge.

Engine

Engine Power Powered Isuzu

EV Driven

Achates Power continues development of opposed-piston technology for US Army vehicles

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

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