Negative, I will assume you are speaking of a Wankle type engine. A rotary engine is a radial engine where the crankshaft is bolted to thefirewall and the engine spins (don't ask me why, it's a French idea, kinda figures). A wankle or a "rotary" engine is a horse of a completely different colour. It combines a two and four stroke in one engine. It has 2 ports just like a 2 stroke. But uses a four stroke cycle. It uses a triangular shaped rotor(or piston) in a roughly hourglass shaped combustion chamber. There is a shaft at the center that the rotor "wobbles around" and supplies the power. Each side of the rotor acts like a cylinder on a conventional engine. Intake ports and exhaust ports are directly above one another on opposite side of the glow plug. Fuel is drawn in and compressed in the upper half of the hourglass. At the other side across from the intake the fuel is ignited. As the rotor spins into the lower half the fuel burns and produces power. As the rotor tip sweeps by the exhaust port the spent fuel and exhaust is pushed out. Kinda simple but not. All you need is to see a diagram and it will be very clear how one works.

Having said that a rotory engine makes tremendous horsepower. The only limits on the engine are how fast you can spin it and how much fuel you can get in and out. They tend to run hotter than standard engines. And they are more delicate than standard engine technology. The rotor tip seals are a sore spot in the design. They are also fuel hogs. They love fuel. But for their size and weight only a gas turbine can make more power.

I hope this explains it for you.

Mark Shuman