Wankeltyyppiset

Wankeltyyppiset, also known as rotary or Wankel engines, are a type of internal combustion engine characterized by a rotary design as opposed to the traditional piston-driven mechanism. Developed by German engineer Felix Wankel in the mid-20th century, these engines utilize a rotating triangular rotor within a chamber to convert fuel into mechanical energy.

The core principle of Wankel engines involves an eccentric rotor turning inside an epitrochoidal housing, creating three separate chambers that expand and contract as the rotor spins. This movement facilitates the intake, compression, power, and exhaust processes in a continuous and smooth cycle, resulting in fewer moving parts compared to reciprocating engines. The design allows for high power output relative to engine size and smooth operation due to the continuous rotational motion.

Wankel engines are known for their compact form, lightweight construction, and high rotational speeds, making them suitable for applications where space and weight are critical, such as in automobiles, aircraft, and some motorcycles. Notable advantages include fewer vibrations, fewer mechanical components, and the potential for high-speed operation. However, they also face challenges such as higher fuel consumption, increased emissions, and issues related to sealing and durability of the rotor and housing.

Despite these drawbacks, Wankel engines have been produced by various manufacturers, with Mazda being the most prominent advocate. Mazda’s RX series exemplifies the use of Wankel technology in consumer vehicles. Although not as widely adopted as piston engines, Wankel engines continue to be of interest for specialized applications and research into alternative and sustainable power sources.