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:
Sep. 22, 1998
Filed:
May. 12, 1997
John R Savage, Kettering, OH (US);
Michael J Neely, Dayton, OH (US);
ITT Automotive Electrical Systems, Inc., Auburn Hills, MI (US);
Abstract
A vehicle fan assembly for circulating air to cool an engine. The fan assembly has a central hub; an outer, circumferential ring with an inner surface disposed around the hub; a plurality of blades, each blade having a root connected to the hub, a tip connected to the inner surface of the ring, and a span between the root and the tip, the blades extending generally radially outward from the hub to the ring; and at least one bladelet having a base connected to the inner surface of the ring, a free end, and a span between the base and the free end. Preferably, a plurality of bladelets are disposed alternately with the blades on the inner surface of the ring around the circumference of the ring. The span of each bladelet is about 40% to 50% of the span of the blades. The tips of the blades and the bases of the bladelets are connected to the ring over the full width of the blades and the bladelets, respectively. Finally, each bladelet has a planform with an elliptical profile.