^BAWG
W46
Description
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Did you know
- The Wärtsilä W46 engine was introduced in 1988, building on generations of Wärtsilä's expertise in four-stroke engine design.
- The W46 is a medium-speed engine that filled a power gap in Wärtsilä's portfolio between the Vasa 32 and the more powerful W64 designs. The W46F, a later iteration, increased speed from 500 rpm to 600 rpm to maintain competitiveness and meet IMO Tier II NOx emission regulations.
- The Wärtsilä W46 is often chosen for its reliability, low operating costs, and excellent combustion performance across various fuel types, including heavy fuel oil. Its design also prioritizes easy maintenance with features like a three-piece connecting rod and modular camshaft.
| Model | Cylinder Bore (mm) | Piston Stroke (mm) | Power/Cylinder (kW) | Engine Speed (rpm) |
|---|---|---|---|---|
| W46 | 460 | 580 | 975-1050 | 500-514 |
| W46F | 460 | 580 | 1200 | 600 |
| W32 | 320 | 400 | 580 | 750 |
| W50DF | 500 | 580 | 950-975 | 500-514 |
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Code map
^B A W G │ │ │ └── Model: W46 │ │ └───── Make: Wärtsilä │ └──────── Equipment: Aux Engine └─────────── System: Aux Engine Power Generation