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The Wärtsilä RT-flex96C is a two-stroke turbocharged low-speed diesel engine designed by the Finnish manufacturer Wärtsilä. It is designed for large container ships that run on heavy fuel oil . Its largest 14-cylinder version is 13.5 meters high, 26.59 meters long, weighs over 2,300 tonnes , and produces 80.08 megawatts .
This is the power rating table generated for the Vasa 32LN engine. Engine power ratings are determined by how the engine is being used. The Vasa engines offer 375 kW/cyl and 410 kW/cyl. As the number of cylinders increase, the power increases. The size of the engine depends on the application it is being used for. [1]
The engine models are identified by the cylinder bore diameter in centimeters, which as of 2024 range from 20 to 46 centimetres (7.9 to 18.1 inches). The smallest engine series, Wärtsilä 20, produces a modest 200 to 220 kW (270 to 300 hp) per cylinder and is available in inline configurations from 4 to 9 cylinders.
The only straight-14 engine known to reach production is part of the Wärtsilä-Sulzer RTA96-C family of 6-cylinder to 14-cylinder two-stroke marine engines. This engine is used in the Emma Mærsk , which was the world's largest container ship when it was built in 2006.
It had a total engine capacity of 71.5 L (4,360 cu in), and a high power-to-weight ratio. The largest reciprocating engine in production at present, but not the largest ever built, is the Wärtsilä-Sulzer RTA96-C turbocharged two-stroke diesel engine of 2006 built by Wärtsilä.
Straight-seven engine with firing order 1-3-5-7-2-4-6. A straight-seven engine or inline-seven engine is a straight engine with seven cylinders. It is more common in marine applications because these engines are usually based on a modular design, with individual heads per cylinder.
English: Edited: Each engine produces an average total power of 76.3 kW at p mi = 11.1 bar and p me = 8.88 bar. Chambers pressure, instantaneous unitary torque, instantaneous and average total torque plotted against shaft rotation angle. Instantaneous and average total power plotted against time. Derived from: Yamamoto, Kenichi (1971). Rotary ...
In the 1990s, Cummins was the world's biggest high-speed diesel-engine producer in the category of 200 horsepower and over. Meanwhile, Wärtsilä NSD, then Wärtsilä Diesel, was focussed on medium-speed engines. Cummins wanted to extend its selection in the upper range and Wärtsilä Diesel in its lower range. [1]