This looks interesting.
Cummins developing revolutionary new diesel engine for U.S. Army | Fox News
VIDEO at link >>> https://www.youtube.com/watch?v=JoQkTIfAB2U
Cummins developing revolutionary new diesel engine for U.S. Army | Fox News
VIDEO at link >>> https://www.youtube.com/watch?v=JoQkTIfAB2U
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The Advanced Combat Engine (ACE) project is a joint venture between Cummins and California-based Achates Power, who has designed an opposed-piston engine that works on a two-stroke combustion cycle and eliminates the need for a valvetrain.
There are two pistons in each cylinder that compress the air-fuel mixture between them. The movement of the pistons exposes intake ports at the bottom of their strokes, while a direct fuel injection system adds ads diesel as the piston heads come together. A series of gears connect cranks at the top and bottom of the engine to a common output.
According to Achates, eliminating the head reduces heat loss and improves the thermal efficiency of the engine. Cummins says it is targeting a 21 percent reduction in thermal rejection, along with a 50 percent increase in power density and a 13 percent jump in fuel efficiency compared to engines currently in use.
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