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:
Feb. 15, 2005
Filed:
Mar. 21, 2003
Phillip James Bradbury, Poway, CA (US);
Phep Xuan Nguyen, Lahabda, CA (US);
Chalmers R. Jenkins, Scottsdale, AZ (US);
Scott H. Frankel, Gilbert, AZ (US);
Phillip James Bradbury, Poway, CA (US);
Phep Xuan Nguyen, Lahabda, CA (US);
Chalmers R. Jenkins, Scottsdale, AZ (US);
Scott H. Frankel, Gilbert, AZ (US);
Minebea Co., Ltd., Nagano, JP;
Abstract
Method for determining the camber line and thickness distribution for blades used in a cooling fan with counter-rotating impellers. The camber lines and thickness distributions for the blades of each of the impellers are determined through use of Bezier curves and chosen to reduce boundary layer separation of airflow across the blades. The Bezier control points are altered to produce a set of distributions of the camber lines and thickness distributions, and the most favorable set is found with increased cooling efficiency.