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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 .
Two-stroke engines often have a higher power-to-weight ratio than a four-stroke engine, since their power stroke occurs twice as often. Two-stroke engines can also have fewer moving parts, and thus be cheaper to manufacture and weigh less. In countries and regions with stringent emissions regulation, two-stroke engines have been phased out in ...
In the 1950s, MZ was the world leader in two-stroke engines. Especially through the work of their racing engineer and department leader Walter Kaaden their engines became nearly unbeatable and in 1961 they nearly won the world championships in the 125 cc class against Soichiro Honda's four-stroke engines. The championship was lost through one ...
The first B&W two-stroke diesel engine set off to sea in 1930 and the world's largest diesel engine at the time was delivered in 1933 to H. C. Ørsted Power Station. Steady progress and consolidation continued through the period of World War II and the subsequent period of reinvigorated prosperity. The first turbocharged two-stroke diesel ...
DKWs always used two-stroke engines, reflecting the company's position by the end of the 1920s as the world's largest producer of motorcycles. The first DKW car, the small and rather crude Typ P , emerged on 7 May 1928 [ 5 ] and the model continued to be built at the company's Spandau (Berlin) plant, first as a roadster and later as a stylish ...
The Spanish company's two-stroke engine features eight pistons and four cylinders. INNengine sees the small engine serving as a range extender for future EVs.
During World War I, MAN Nürnberg built a six-cylinder, double-acting piston, two-stroke diesel engine with a rated power of 12,400 PS (9,120 kW; 12,230 hp). [6] MAN moved their two-stroke diesel engine department from Nürnberg to Augsburg in 1919. [10]
Since then, the development of four-stroke engines has been carried out in Augsburg, while two-stroke engines are designed in Copenhagen. [11] The marketing name for the largest two-stroke engines still has "B&W" in it. [14] [15] In 1982, the first two-stroke large diesel engine with over 50% efficiency was built. [11]