METHOD OF CONNECTION OF FAN TO ELECTRIC MOTOR AND MOTOR FAN UNIT MADE BY SAID METHOD Russian patent published in 2007 - IPC F04D29/64 

FIELD: ventilation systems.

SUBSTANCE: invention relates to method of connection of rotor 20 with electric motor 1. Electric motor 1 includes drive shaft 3 projecting from electric motor along longitudinal axis of rotation X-X, and rotor 20 including bushing 38 to receive drive shaft 3. Method includes stage of supporting of motor 1 and rotor 20, pushing drive shaft 3 along axis of rotation X-X thrust against axial stop 37 located in preset coordinate (X₀) on axis of rotation X-X, axial fixing of drive shaft 3 and moving rotor 20 along axis of rotation X-X- through preset length L and attaching said rotor 20 to drive shaft 3 with interference fit. Length L of attachment depends on preset coordinate (X₀) and length (X_A) of drive shaft 3.

EFFECT: provision of reliable fastening of fan motor.

4 cl, 3 dwg