Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2006-05-09
2006-05-09
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S062000, C310S052000, C310S058000, C310S064000
Reexamination Certificate
active
07042121
ABSTRACT:
The invention relates to a cooling fan for use in a motor vehicle. To achieve improved cooling of an electric motor it is proposed that the motor housing enclosing the electric motor be used as a heat sink for emitting waste heat into a cooling air flow. The cooling air flow for cooling the electric motor is routed here through the interior of the motor housing and subsequently along the outside of the motor housing over cooling elements in the areas of the air inlet openings and in the area or an air exit gap between fan wheel hub and front part of the motor housing. The cooling air flow is created in this case by the fan wheel hub of the fan wheel driven by the electric motor.
REFERENCES:
patent: 6682320 (2004-01-01), Gold et al.
patent: 2002/0187059 (2002-12-01), Gold et al.
patent: 100 44 066 (2002-04-01), None
patent: 1 050 682 (2000-11-01), None
Derwent Abstract—DE-100 44 066 A1; Apr. 4, 2002; Electric ventilator has cooling body for control unit mounted on at least one ventilation opening of common housing for electric motor for driving fan and control unit for controling motor; Stribel GmbH, D-72636 Frickenhausen (Germany).
De Filippis Pietro
Egerland Markus
Kemmer Detlef
McLennan Paul Stephen
Redelberger Harald
Eisenberg J.
Pham Leda
Schuberg Darren
Siemens Aktiengesellschaft
Siemens AG
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