The rotary engine is a type of reciprocating internal combustion engine, usually designed with an odd number of cylinders per row in a radial configuration. In most designs, the engine's crankshaft re
An 80 horsepower (60 kW) rated Le Rhône 9C, a typical rotary engine of WWI. The copper pipes carry the fuel-air mixture from the crankcase to the cylinder heads acting collectively as an intake manifold.
This Le Rhône 9C installed on a Sopwith Pup fighter aircraft at the Fleet Air Arm Museum. Note the narrowness of the mounting pedestal to the fixed crankshaft (2013), and the size of the engine
Megola motorcycle with rotary engine mounted in the front wheel
An 1897 Félix Millet motorcycle
The Wankel engine is a type of internal combustion engine using an eccentric rotary design to convert pressure into rotating motion. The concept was proven by German engineer Felix Wankel, followed by
Rotary engine
…moving around a fixed crankshaft, several different engine designs are also called rotary engines. The most notable pistonless rotary engine, the Wankel rotary engine has been used by NSU in the Ro80 car, by Mazda in a variety of cars such as the RX-series, and in some aviation applications. In the late 1970s a concept…
The first Wankel engine designed by Felix Wankel, the DKM 54 (Drehkolbenmotor), at the Deutsches Museum in Bonn
Modern KKM Wankel engine with rotor and geared output shaft
The first KKM Wankel engine based on a design by Hanns-Dieter Paschke, the NSU KKM 57P (Kreiskolbenmotor), at Autovision und Forum
The first production Wankel engine as installed in an NSU Spider