AXIAL FAN AND METHOD OF ASSEMBLING SAME Russian patent published in 1996 - IPC

FIELD: fan engineering. SUBSTANCE: inner side of the housing is axially alined, intersected cylinder and sphere. All members of the bushing with projections are positioned inside the sphere. The outer side of the projections is spherical and in contact with the spherical surface of the housing. The maximum overall size of the bushing is less than the diameter of the cylindrical surface of the housing at least in one of positions of the bushing. In assembling, before setting the bushing, it is rotated to a position wherein its maximum overall size is less than the diameter of the cylindrical surface of the housing, axes of spherical surfaces of the bushing and the housing are brought in coincidence, and the bushing is rotated to bring the longitudinal axis spherical projections of the bushing into coincidence with the longitudinal axis of the housing. EFFECT: enhanced reliability. 3 cl, 5 dwg