摘要 |
Improvement is to follow successive profiles of waved blades, along displacement of fluid in mobile wheel, floor after floor, blade after blade, whilst respecting angular conformity of blade frames relative to median line; and to give degree of freedom to two consecutive floors of turning assembly. Liberty allows easier regulation of radial equilibrium Conformity of successive attack edges and escape edges relative to meridian planes is not ensured. Escape and attack edges, when brought mentally together, form capital letters X or V.
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