…The Francis wheel is a typical example of this type of reaction wheel, and over 80% of the water wheels in Japan are Francis wheels. The reaction wheel had already been invented in America around 1740, but it was extremely insufficient. It was later studied by the Frenchman Benoît Fourneyron (1802-67), who completed a practical reaction wheel in 1832. The Fourneyron wheel is the basis of modern water wheels, but it had drawbacks such as the fact that the inside of the runner was not always filled with water, because energy was exchanged when the radially outward flow passed through a rotating runner. … *Some of the terminology that mentions "Fourneyron, B." is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…フランシス水車はこの反動水車の代表的なもので,日本における水車の80%以上はフランシス水車である。反動水車は1740年ころ,すでにアメリカで考案されていたが,きわめて不十分なものであり,その後フランスのフルネーロンBenoît Fourneyron(1802‐67)により研究され,1832年に実用的反動水車が完成した。フルネーロンの水車は現代の水車の基礎をなすものであるが,半径方向外向きの流れが回転するランナーを通過するときにエネルギー交換を行うようにしていたため,水がランナー内部を常に充満しないなどの欠点があった。… ※「Fourneyron,B.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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