Rotary engines are compact, smooth, and powerful, so why don't more automakers use them? Well, it's complicated.

Not every engine has a set of pistons that move up and down in a cylinder. The Wankel, or rotary engine, delivers its power with rotational force rather than a reciprocating mass that hammers out ...

It is quite ironic that internal combustion engines (ICEs) have remained basically the same for more than one hundred years. It is only now – when they are allegedly on the verge of disappearing – ...

Ask most people what a rotary engine is, and they'll describe a Mazda RX-7 with a triangular rotor spinning inside a housing, combustion happening in sequence as the rotor moves rather than across a ...

The piston engine may be the most common type of internal combustion engine found in consumer automotive vehicles. That doesn't mean it's the only option drivers have ever had access to. In the 1960s, ...

While a reciprocating engine's pistons force up-and-down motion to convert into rotational motion via a crankshaft, the ...