RADIAL BLOWER Russian patent published in 2018 - IPC F04D29/58 

FIELD: instrumentation; ventilation.

SUBSTANCE: radial blower that comprises the spiral housing with the impeller, which is fixed to the end of the cantilever shaft, supported by two bearing assemblies, which are mounted at the distance from each other, the section of the cantilever shaft that is located between the bearing assemblies is placed in the protective casing, which covers the cantilever shaft in the axial direction, while the protective cover is fully or partially open from both ends, the inner cavity of the protective casing is divided into two separate internal cavities that face the corresponding bearing assemblies, by means of the partition wall provided with the opening that allows for the cantilever shaft to pass through it, through holes are provided on either side of the partition wall in the protective casing, in order to provide air supply to each separate inner cavity of the casing, the impeller is rigidly fixed in each separate inner cavity of the casing, in the respective shaft section, it is designed in order to supply air from through holes to the adjacent bearing assembly through the fully or partially open end of the casing.

EFFECT: technical result, which is achieved by the invention, is the increased cooling efficiency of the bearing assemblies, increased safety.

3 cl, 1 dwg