W18 engine
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A W18 engine is an eighteen cylinder piston engine in a W configuration. Recent W18 engines powered the Bugatti EB 118, Bugatti EB 218 and Bugatti EB 18/3 Veyron concept cars in the late 1990s. This engine featured three banks of six cylinders set 60 degrees apart.
An earlier example is the Isotta-Fraschini "Asso 750" used to power the Italian Savoia-Marchetti S-55 seaplanes flown by Italo Balbo into Chicago in 1933. This engine used the same layout as the above-mentioned Bugatti - basically a vertical six with two adjacent banks set at 60 degrees each to make a W-18.
| Piston engine configurations | |
|---|---|
| Straight | Single, 2, 3, 4, 5, 6, 8, 9, 10, 12, 14 |
| V | 2, 4, 6, 8, 10, 12, 16, 20, 24 |
| Flat | 2, 4, 6, 8, 10, 12, 16 |
| W | 8, 12, 16, 18 |
| Other inline | H, VR, Opposed, U (Square), X |
| Other | Radial, Rotary, Pistonless (Wankel) |
External links
- [Volkswagen's VR6 and W-engines]
- [Bugatti's official site]
- [The mighty "Asso 750 Isotta-Fraschini" Engines]
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