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. 06, 1988
Filed:
Feb. 24, 1987
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A cooling system for an internal combustion engine, which includes a fan having a boss coupled to an input member, a plurality of blades projecting substantially radially from the boss and a thin cylindrical ring coaxial with the boss and integrated around the blades, and a shroud arranged around the fan with a clearance therebetween. The ring has a cylindrical portion in its intake side and is bent, with a curvature, outwardly toward its exhaust side. The relative arrangement of the fan with the ring and the shroud is such that a maximum diameter of the ring/(the diameter of the cylindrical portion of the ring+the clearance.times.2) is established in the range of 0.97 to 1.04, that the curvature/the diameter of the cylindrical portion of the ring is established in the range of 0.05 to 0.08, and that overlapping length of the shroud with the ring is established in the range of 0.17 to 0.70.