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Straight-9 engine
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A straight-nine engine or inline-nine engine is a straight engine with nine cylinders. Straight-nine engines are usually diesel engines used for ship propulsion. Rolls-Royce Marine Engines (formerly Bergen Diesel), Pielstick and Wärtsilä (formerly Wichmann) have made this type of engine.
Straight-nine engines in current production include models in the Rolls-Royce Bergen B, C and K series, and the Wärtsilä RT-flex60C-B, RT-flex82C, RTA84T-D, RTA84C, RTA96C, 20, 26, 32, Wasa32LN, 38, 46 and 46F series. The nine cylinder versions of these engines develop power outputs from 1,620 kilowatts (2,200 PS; 2,170 hp) to 51,480 kW (69,990 PS; 69,040 hp).
See Also
| Piston engine configurations v • d • e | |
|---|---|
| Type | Bourke • Controlled combustion • Deltic •Orbital • Piston • Pistonless (Wankel) • Radial • Rotary • Single • Split cycle • Stelzer • Tschudi |
| Inline types | H · U · Square four · VR · Opposed · X |
| Stroke cycles | Two-stroke cycle • Four-stroke cycle • Six-stroke cycle |
| Straight | Single · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 14 |
| Flat | 2 · 4 · 6 · 8 · 10 · 12 · 16 |
| V | 4 · 5 · 6 · 8 · 10 · 12 · 16 · 20 · 24 |
| W | 8 · 12 · 16 · 18 |
| Valves | Cylinder head porting • Corliss • Slide • Manifold • Multi • Piston • Poppet • Sleeve • Rotary valve • Variable valve timing • Camless |
| Mechanisms | Cam • Connecting rod • Crank • Crank substitute • Crankshaft • Scotch Yoke • Swashplate • Rhombic drive |
| Linkages | Evans • Peaucellier–Lipkin • Sector straight-line • Watt's (parallel) |
| Other | Hemi • Recuperator • Turbo-compounding |
