Automotive history is full of dead ends that eventually get lost to time. Seventy years ago, the free-piston engine was ...

Ford once sketched a road where an engine's pistons never saw oil and engines ran hotter on purpose. In a late‑1980s patent application filed and granted in Europe, the company described an "uncooled ...

Navistar International Corporation today announced it has reached a development agreement with EcoMotors International in support of the company’s opoc (Opposed-Piston, Opposed-Cylinder) engine ...

A small company called Pinnacle Engines wants to radically change the internal combustion engine. Instead of a cylinder head, combustion pushes two cylinders away from each other in the same cylinder, ...

When we here in the modern age think of an “engine,” we are usually thinking of a four-stroke, four-cylinder, gasoline-fed, internal-combustion engine with the valves on the top. But why must that be ...

Sandia National Laboratory led by Sandia researcher Peter Van Blarigan that has been testing physical components of free-piston engines which could be 50% efficient. This is about twice as good as ...

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

Napier’s two-stroke 18-cylinder diesel engine is one of the most diverse—and insane—combustion engines ever produced.

One of the many challenges facing engine designers is the need to increase power output while simultaneously retaining or improving efficiency. Although a four-cylinder engine is still an engineering ...

Conventional wisdom suggests that our faithful internal combustion (IC) engines are heading the way of the buggy whip. The lithium-ion battery has arrived, emissions standards are tightening, and ...