Self balancing radial fan wheel - has blades connected to hub by curved spokes each axially spaced to adjacent spokes

摘要

The radial fan wheel has a hub and fan blades arranged concentrically of the hub and connected to it by spokes. The spokes are displaced one from another w.r.t. the radial mid-plane of the fan wheel, each with a fan blade. Each fan blade is connected at one end to a preceding fan blade and at the other end to a succeeding fan blade. The spokes, the fan blades, and connectors are so arranged that, depending on the stresses occuring, the radial length of the spokes is alterable by elastic alteration of the curvature of the spokes while the dia. of the blade ring formed by the fan blades is alterable by elastic twisting and/or bending of the fan blades and/or the connector sections.