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:
Jul. 17, 2007
Filed:
Sep. 30, 2003
Applicants:
Tao Hong, Farmington Hills, MI (US);
John R. Savage, Rochester Hills, MI (US);
Inventors:
Tao Hong, Farmington Hills, MI (US);
John R. Savage, Rochester Hills, MI (US);
Assignee:
Valeo Electrical Systems, Inc., Auburn Hills, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 17/03 (2006.01); H02K 9/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrically powered axial-flow fan has a hub to house the motor and support the fan blades. Small blades or vanes on the inside of the hub function as a radial-flow blower to draw cooling air through cooling ports on the electric motor housing. The vanes inside the hub cooperate with a flange surrounding the motor to form a low pressure chamber under the hub to improve cooling flow through the motor. This motor cooling air flow is then ejected into the exhaust stream of the axial-flow fan.