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Rotary
ロータリー
Principle
A triangular rotor turns inside an epitrochoid housing; each flank completes intake, compression, combustion and exhaust as it sweeps around — no pistons, no valves.
On record
- 1967
The Mazda Cosmo, produced from 1967, launched Mazda's Wankel rotary engine and was, along with the NSU Ro80, one of the first production cars with a two-rotor Wankel engine.
Mazda Cosmo — Wikipedia (English) - 1991
The Mazda 787B No. 55, driven by Johnny Herbert, Volker Weidler and Bertrand Gachot, won the 1991 24 Hours of Le Mans; it was the first Le Mans win by a Japanese manufacturer and remains the only win by a car without a reciprocating engine.
Mazda 787B — Wikipedia (English)