Eugen Langen

(redirected from Nicolaus Otto)
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Langen, Eugen


Born Oct. 9, 1833, in Cologne; died there Oct. 2, 1895. German engineer; one of the inventors of the internal combustion engine.

Together with another German inventor, N. Otto, Langen developed a silent gas engine, which became known and accepted after the Paris Exposition of 1867. The efficiency attained by the engine was 14–15 percent, significantly exceeding that of other, similar engines.


Radtsig, A. A. Istoriia teplotekhniki. Moscow-Leningrad, 1936.
“Eugen Langen.” Engineering, 1933, vol. 136, no. 3533, pp. 359–60.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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Some of them are merely annoying and do not seriously undermine the overall narrative: the United States had far more than 8,000 motor vehicles in 1904; Nicolaus Otto's first four-stroke internal combustion engine was not fuelled by gasoline; overhead valve engines did not become the industry standard shortly after Buick began to manufacture them; the French Panhard firm did not 'fade into oblivion' in the early 1900s; the Grumman Wildcat did not have an Allison engine.
The magneto, which looks like a small, black accordian, was the invention of Nicolaus Otto, who also invented the "four-stroke principle" engine, called the Otto engine in his honor.