IMPELLER ASSEMBLY

摘要

An impeller assembly includes an impeller (10), the impeller (10) having a pair of plate means (12, 14) adapted for individual connection to a drive shaft for rotation by the drive shaft about an axis and vane means (15) disposed intermediate the pair of plate means (12, 14) and adapted for rotation with the pair of plate means (12, 14). The impeller assembly further includes means for applying force parallel to the axis of the impeller (10) to the impeller (10) so as to clamp the pair of plate means (12, 14) and intermediate vane means (15) together.