https://www.merriam-webster.com/dictionary/Wankel%20engine
WANKEL ENGINE Definition & Meaning - Merriam-Webster
The meaning of WANKEL ENGINE is an internal combustion rotary engine that has a rounded triangular rotor functioning as a piston and rotating in a space in the...
wankel enginedefinitionmeaningmerriamwebster
https://everything2.com/node/e2node/Wankel%20rotary%20engine
Wankel rotary engine
The last mainstream production automobile with a rotary engine was the Mazda RX-7. The 'R' stood for 'Rotary.' These were excellent engines, light,...
wankel rotaryengine