Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1997-04-21
1998-06-09
Laballe, Clayton E.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 62, 310 63, 416203, H02K 900, H02K 906
Patent
active
057639680
ABSTRACT:
An alternator has front and rear cooling fans to effectively cool the stator windings and field coil of the alternator. The front cooling fan has a first number (e.g. six) of diagonal-flow type blades for cooling mainly the field coil and a second number (e.g. five) of centrifugal-flow-type blade for cooling the stator windings which are disposed between the diagonal-flow-type blades. The combination of the first and second numbers is designed to suppress noise level caused by the cooling fan.
REFERENCES:
patent: 5028826 (1991-07-01), Kitamura
Hayashi Yoshinori
Irie Hitoshi
Denso Corporation
LaBalle Clayton E.
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