Achates Apr 2026

The Second Coming of the Opposed-Piston Engine: A Look at Achates Power

By removing the head, the engine drastically reduces heat loss. Achates

Its inherently low NOx emissions allow for smaller, less expensive exhaust systems. Efficiency by the Numbers The Second Coming of the Opposed-Piston Engine: A

The primary draw of Achates technology is a "step-function" improvement in efficiency. By combining a two-stroke cycle with the opposed-piston architecture, the engine achieves: or rocker arms.

There are no valves, camshafts, or rocker arms.