Liquid Piston has taken its revolutionary engine out for a spin. The Connecticut-based startup has been developing a tiny new type of rotary engine for several years that’s so innovative it received a ...

Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The “correct” answer is thus to combine both into a single ...

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 ...

According to the official sales specifications of the Mazda MX-30 for the U.S., the small electric SUV will continue to be offered only with an all-electric powertrain. This means that the North ...

Isaac Atienza is a Filipino motoring journalist who joined TopSpeed.com in 2021. He also owns a Filpino motoring website called Go Flat Out PH and is also a contributor to a local newspaper called The ...

The rotary engine, once heralded as a revolutionary alternative to traditional piston engines, has experienced a tumultuous journey through the annals of automotive history. Despite its decline in ...

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If you’re running an army, chances are good that you need a lot of portable power for everything from communications to weapons control systems. When it comes to your generators, every ounce counts.

Imagine an engine that's 30 percent smaller than a traditional piston design of like output, and that runs smoothly, with less noise and vibration. Plus, it burns several types of fuel. That's the ...

While most people might know rotary engines for their use in cars, a pair of companies made use of them in chainsaws — and those chainsaws aren't easy to find.

Rotary engines are already known for their high RPM; the smaller they get, the higher they tend to rev. So what happens when the world’s smallest rotary engine gets put to the test? Well, 30,000 RPM ...