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 ...

Wankel engines first saw use in production cars as early as 1964 -- and not even in a Mazda, but rather in an NSU. That little single-rotor powerplant quickly evolved into the more typical two-rotor ...

Since its U.S. release in 2000, the Toyota Prius has been the subject of both mockery and admiration. While some deride the hybrid for its inconspicuous look and lack of traditional power, others ...

The X-Engine technology used in the XTS-210 is a direct drive rotary approach that can be viewed as an "inverted" Wankel engine. It has a trochoidal rotor with a three-lobed housing, but it utilizes a ...

As we begin the last article in this series on the basics of the internal combustion engine, let's stop to review what we've covered during the last five articles. We began last May by detailIing the ...

How Does an Engine Work? Before digging into this significant expense, it’s important to outline how an engine works. The engine is the heart of the car, truck, or SUV. The vehicle’s full function is ...

A fundamental difference between gasoline and diesel engines is that a gasoline engine uses spark ignition while a diesel engine uses compression ignition. Before we delve deeper, let's understand how ...