Heat dissipating fan for an induction motor

Details Heat dissipating fan for an induction motor Heat dissipating fan for an induction motor

1999-09-07

2000-11-21

Walberg, Teresa

Pumps

Motor driven

Electric or magnetic motor

416224, F04B 1700

Patent

active

061494062

ABSTRACT:
A heat dissipating fan for an induction motor comprises a motor shaft with a circular groove and an end part. A fan has blades and a hollow central shaft with a hole, and tennons are provided on an inner wall of the hole for fitting with the circular groove. A protection cover has an opening being passed through by the motor shaft. Furthermore, heat releasing fins are provided on the protection cover and space apart with each other surrounding the opening. The fan is characterized by that the blades is attached to the fan and is fixed to an annular base plate. The base plate has a slanted curvy surface structure. When said fan is rotating synchronously with said motor shaft, the air current can be directed smoothly and backwards into the motor.

REFERENCES:
patent: 3557772 (1971-01-01), Kofink
patent: 4065233 (1977-12-01), Torigoe et al.
patent: 5156535 (1992-10-01), Budris et al.
patent: 5378124 (1995-01-01), Welch
patent: 5741124 (1998-04-01), Mazzucato et al.
patent: 5814908 (1998-09-01), Muszynski
patent: 5971725 (1999-10-01), de Simon et al.
patent: 5996685 (1999-12-01), Alizadeh

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