Vehicle-use generator with reduced fan noise

Details Vehicle-use generator with reduced fan noise Vehicle-use generator with reduced fan noise

2006-07-28

2009-11-17

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S058000, C310S085000

Reexamination Certificate

active

07619336

ABSTRACT:
The vehicle-use generator driven by a vehicle engine at a rotating shaft thereof includes a rotor rotatably mounted to the rotating shaft, a stator fixedly located radially outward of the rotor, a cooling fan fixed to the rotor to rotate together with the rotating shaft in order to generate cooling air for cooling the stator, and a housing that houses the rotor and the stator and rotatably supports the rotating shaft. The housing is provided with ribs arranged in a circumferential direction of the rotating shaft so as to form cooling air outlet windows. The ribs are inclined with respect to a radial direction of the rotating shaft, and shaped such that widths of the ribs are gradually changed cyclically in the circumferential direction.

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European Search Report issued Nov. 30, 2007.

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