Not pretty, but we’ve done worse ourselves. By 12 minutes in, we were worried it wasn’t going to work again, but it did work although it wasn’t terribly reliable to start. Still, when it worked, it ...

It would have been revolutionary: an internal combustion engine without oil. And it might have worked. But lots of real-world issues got in the way.

V8 Engine Model In this video, discover how to construct a fully operational V8 engine model featuring an accelerator pedal, ...

The opposed-piston (OP) engine is an old invention that has mostly been used in heavy-duty machines like tanks and ships, but proponents believe it could revolutionize the internal combustion engine.

If you are a motorhead, an unusual engine will immediately get your attention. Most vehicles today have either an inline or V-shaped configuration, so anything peculiar will immediately stick out. If ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

Since Michigan has a stay-at-home order due to the coronavirus, I've been partaking in what I am now officially dubbing Wrenchfest 2020—an all-out repair assault on my various broken cars. Last ...

Free-piston engine generators and linear machines represent an innovative departure from conventional rotary systems, offering high thermal efficiency and operational flexibility by eliminating the ...