13B rotary engine 4

https://articlegrovey.com/s/GFZmcYYvX3xrnjdbgS5Bf

The 13B rotary engine, a masterpiece of Japanese engineering, uses a unique triangular rotor design instead of conventional pistons to convert pressure into rotating motion. Known for its smooth, high-revving power and compact size, it became iconic in cars like the Mazda RX-7. However, it has challenges with fuel efficiency and emissions.