The basic layout of the Achates engine has been around for some time. The German Luftwaffe started using similar Junkers Jumo opposed-piston diesels in large aircraft in 1932.

The opposed-piston motor has been around for almost 100 years, but it's never been put into a land vehicle before, until now. Here's what you need to know.

The Achates Power opposed-piston engine I saw in the Calstart webinar was a heavy-duty diesel for use in 18-wheelers. The 10.6-liter three-cylinder (with six pistons) makes 400 hp at 1700 rpm and ...

Together the three recipients will invest another $4 million to develop a 3-cylinder, 3-liter opposed-piston gasoline compression engine that could improve fuel efficiency by 50% or more on large ...

In this video, I take on an exciting engineering challenge: combining two internal combustion engines into a single ...

Engineering Explained. How Opposed Piston Engines Work (In 60 Seconds) Posted: May 22, 2025 | Last updated: May 31, 2025. Can Opposed Piston Diesel Engines Save The Combustion Engine?

Achates' highly efficient opposed piston engine is set to find a home in the Ford. Brian Cooley explains what makes it special. Radical new engines make a run at reality in the F-150 - CNET ...

The engine you see here has three opposed-piston engines in a chain, forming a triangle. This setup made 3,700 hp when turbocharged. A much simpler bank of six cylinders (12 pistons) could power ...

Opposed-piston engine technology has been touted as a possible alternative to conventional engine designs for years. Now, opposed-piston engine developer Achates Power reports that its 10.6L ...

Several organizations, encompassing companies, research labs, and academia, have formed the Hydrogen Opposed Piston Engine Working Group, a collaborative forum to advance sustainable ...

The opposed-piston concept is hardly revolutionary; the Fairbanks-Morse 38 1/8 has been powering marine vessels since World War II. French engineer Eugene Brillié was designing opposed-piston ...

DETROIT — While Tesla, General Motors, Nissan, BMW and other automakers doggedly push to bring battery-powered vehicles into the mainstream, Achates Power engineers are betting that an old ...