Reliable direct quotations by Rudolf Diesel are difficult to verify in primary sources.
ルドルフ・ディーゼルの直接的な言葉は、信頼できる一次資料での確認が困難なものが多い。

Inventors
Rudolf Diesel
Rudolf Diesel (1858-1913) was a German mechanical engineer and inventor who designed the compression-ignition internal combustion engine that bears his name. Grounded in the theoretical framework of the Carnot cycle, the diesel engine achieved dramatically higher thermal efficiency than the steam engine, transforming the power source for shipping, railways, and electricity generation. Diesel disappeared from a steamship crossing the English Channel in 1913; his body was found in the North Sea ten days later.
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