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 ...

Experience the journey of creating a homemade rotary valve engine, from disassembly and lathe machining of critical parts to ...

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

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 – ...