Straight-twelve engine
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A straight-12 engine or inline-12 engine is a twelve-cylinder internal combustion engine with all twelve cylinders mounted in a straight line along the crankcase.
Land use
A straight-12 is a very long engine, and therefore straight-12 engines are extremely rare in automobiles, the first recorded being the Corona[1] made available in France in 1920. It displaced 7,238 cubic centimetres (441.7 cu in), but it is not known if any were sold. Packard also experimented with an automobile powered by an inline 12 in 1929.[2] The straight-12 has also been used for large military trucks.
Marine use
Some Russian firms built straight-12s for use in ships in the 1960s and 1970s. MAN Diesel & Turbo 12K98ME and 12S90ME-C and the Wärtsilä-Sulzer RTA96-C are examples of contemporary marine engines in L-12-cylinder configuration. These are popular for propulsion in container ships.[3][4] Wärtsilä-Sulzer has even made the world's so far only L-14 configuration.[5]
References
- ^ Burgess Wise, David (1979). The Illustrated Encyclopedia of Automobiles. New Burlington Books. p. 131. ISBN 0-906286-16-6.
- ^ "The Long-Lost Experimental Packard Straight Twelve - The Old Motor". theoldmotor.com.
- ^ "World's Largest Diesel: MAN's Record-Breaking 12S90ME-C". Archived from the original on 2017-06-14. Retrieved 2017-05-31.
- ^ "Archived copy" (PDF). Archived from the original (PDF) on 2017-05-17. Retrieved 2017-05-31.
{{cite web}}: CS1 maint: archived copy as title (link) - ^ "Wartsila Sulzer RTA96-C - Engine".
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