oikosulkumoottori

The oikosulkumoottori, often translated as a "rotary combustion engine," is a type of internal combustion engine that uses a rotor instead of pistons. Unlike a traditional piston engine where reciprocating motion is converted into rotational motion, the oikosulkumoottori directly produces rotational motion through the movement of a triangular rotor within a specially shaped housing. This housing typically has a epitrochoidal shape. The rotor has three faces, and as it rotates, its faces create separate chambers within the housing. These chambers perform the four strokes of the Otto cycle: intake, compression, combustion (power), and exhaust. The continuous rotation of the rotor means that the engine has a smoother power delivery compared to a piston engine, which experiences distinct power pulses. Oikosulkumoottorit are known for their compact size and high power-to-weight ratio. They also tend to have fewer moving parts than piston engines. However, they can be more challenging to seal effectively, which can lead to issues with emissions and fuel efficiency. The most well-known application of this engine design is the Wankel engine, developed by Felix Wankel.