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Mark Benson (born Mark Müller) was a Bohemian German engineer, best known as the inventor of a supercritical boiler. Benson was born in the Sudetenland, and his original name was Müller (he changed his name during World War I to hide his German origin). He emigrated to the United States,〔Sadik Kakaç: ''Boilers, Evaporators, and Condensers'', Wiley-IEEE, 1991, ISBN 978-0-471-62170-6〕 then returned to Europe to work for the English Electric Company in Rugby.〔(J.W. Smith: ''Supercritical (Once Through) Boiler Technology'', Barberton, Ohio, U.S.A., 1998 )〕 For ''English Electric'' he designed a relatively small steam generator (3 tons/hr), but with—for the time—very high pressure (supercritical) and without any drum.〔(Sebastian Teir: ''The History of Steam Generation'', Helsinki University of Technology, 2002 )〕 In 1922 Benson was granted a patent for this type of boiler.〔http://www.siemens.com/history/en/innovations/power.htm〕 In 1924, Siemens acquired the right to use Benson's patent, and in 1926–27 built the first large Benson boiler in Berlin-Gartenfeld.〔 Siemens improved the technology and developed it as an internationally acknowledged standard for large steam generators.〔(Joachim Franke: ''The Benson Boiler Turns 75'', Siemens Power Journal Online, Mai 2002 )〕 Since 1933 (until today) Siemens do not manufacture their own Benson boilers any more, but instead license the technology to others. After his patent, Mark Benson did not make any further public appearances, but Siemens continued to use ''Benson'' as a registered trademark for this successful type of boiler, so the name is renowned worldwide in boiler engineering, although relatively little is known about the inventor behind it. == References== 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mark Benson (engineer)」の詳細全文を読む スポンサード リンク
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