| 单词 |
Savonius |
| 释义 |
Savonius|səˈvəʊnɪəs|
The name of Sigurd J. Savonius (fl. 1930), Finnish engineer, used attrib. to designate a device developed by him consisting of two opposed semicylindrical blades (see quot. 1948), used in various forms to measure the speed of air and water currents and as a windmill rotor in the generation of electricity from wind power.
1925Mech. Engin. Nov. 912 In slow winds the Savenius [sic] wing rotor might have to be provided with an auxiliary motor... In strong winds, however, its own turning moment would be sufficient. 1948P. C. Putnam Power from Wind vi. 101 The Savonius rotor was a vertical cylinder sliced in half from top to bottom, the two halves being pulled apart by about 20 per cent of the diameter... In principle it resembled a cup anemometer... The Savonius design possessed fairly high efficiency. 1955E. W. Golding Generation of Electricity by Wind Power xii. 197 The Savonius rotor has the two halves of the bent sheet displaced so that the wind can pass between them... A number of Savonius type machines were built some years ago but only in small sizes. 1963G. L. Pickard Descriptive Physical Oceanogr. vi. 79 An alternative..is the Savonius rotor which is not sensitive to vertical motion. 1974Undercurrents Mar.–Apr. 3/3 A double Savonius rotor windmill directly driving a screw pump. |
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