D.E. Klimenko - Evolution of hydrometric propellers in Russia and abroad

Written by Iskander Beglov

Wednesday, 24 July 2013

Despite of a seeming completeness of development of hydrometric propellers, there are indeterminate problems. To their number refer to: • àbsence of an optimum relationship “sensitivity-componentivity” at which raise of sensitivity of the device would not conduct to an essential decline of componental qualities and on the contrary (the question is solved configuration of a revolving object by several replaceable rotors); • àbsence of a common opinion about agency of relative diameter of the screw and its blade-area ratio on componental properties of the device; • ðendency of a question of a trouble-free operation of the device in complex conditions (a frost, the raised mineralization, etc.); • ðendency of a question of stability of blade screw parameters for the period of maintenance of the device. Download (pdf, 1274 kB, in Russian)

 

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