The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 2006
Filed:
Jun. 24, 2005
Pietro DE Filippis, Milan, IT;
Markus Egerland, Gerbrunn, DE;
Detlef Kemmer, Alterheim, DE;
Paul Stephen Mclennan, London, CA;
Harald Redelberger, Kürnach, DE;
Pietro De Filippis, Milan, IT;
Markus Egerland, Gerbrunn, DE;
Detlef Kemmer, Alterheim, DE;
Paul Stephen McLennan, London, CA;
Harald Redelberger, Kürnach, DE;
Siemens Aktiengesellschaft, Munich, DE;
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.