An engine with no crankshaft, where the pistons float on air? It’s not a dream; it’s a free piston engine and it might be the next major advance in car tech. When we think of automotive technology of ...

Constantly low on oil, getting bad fumes, or is your engine not as peppy as it once was? Your car's engine may be experiencing the dreaded blow-by.

Gearheads might be aware of piston skirts, but their exact function isn't always clear to those outside engineering. Here's ...

Over the roar from a 110-cc, two-cylinder engine, Pinnacle Engines founder James Cleeves (nicknamed Monty), pointed out a window in the block. "You can see the cylinder sleeve moving for the intake ...

Heat is a byproduct of combustion. Both air-cooled and water-cooled engines need to dissipate that heat to keep the engine from running too hot. Can piston rings play a role in managing that heat?

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 ...

Alternative fuels to hydrogen and electricity are growing in popularity, and we’re not just talking about options like (experimental) nitrogen or green ammonia. A group of experts has just presented ...

Some of the world’s most complicated engines were created to achieve a specific objective. These engines were built to ...

Pistons play the ultimate role in an engine, but despite that, it's still hard to fully wrap your head around all the forces involved. There are plenty of moving parts in an internal combustion engine ...

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 ...

The earliest piston engines typically had only one cylinder, and at best, produced horsepower measured in single digits. But once you have a working engine, it’s a relatively short step to adding ...