One of the distinguishing features is that they don't need valves to operate. That's to say, the Wankel rotary engine design doesn't have valves -- but quite a few rotary engine designs have ...

This is a category that is pretty rapidly going away. You'll be hard-pressed to find an overhead valve — also known as a pushrod — engine in anything outside of a General Motors LS/LT V8 or ...

Cummins engine is built for power and reliability, but even the toughest engines need maintenance. One critical component ...

While that makes me a little sad, it helps me appreciate the revival of this ancient Willys-Knight sleeve valve engine all the more as this guy in 2025 got it going after it had sat for more than ...

The installation of an incorrect valve in a pipe to a diesel oil tank ... On Jan. 8, 2024, a fire broke out in the engine room aboard the cargo vessel Stride during bunkering, or fueling ...