Internal cooling fan with a non-repeating blade configuration

Details Internal cooling fan with a non-repeating blade configuration Internal cooling fan with a non-repeating blade configuration

2008-04-29

2008-04-29

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S061000, C310S062000, C310S063000

Reexamination Certificate

active

11260136

ABSTRACT:
An internal cooling fan assembly for use with a claw-pole segment of a rotor assembly is provided that maximizes air flow while providing a reduced sound signature. The fan assembly includes a base portion that contacts the claw-pole segment when the fan assembly is mounted to the claw-pole segment. The fan assembly also includes a number of blades extending from the base portion such that the blades project outward from a plane normal to the rotor. The plurality of blades have a geometry that aligns with roots of the claw-pole segment. In addition, a first blade of the number of blades is of a first configuration and a second blade of the number of blades is of a second configuration different from the first configuration.

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