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:
Jun. 10, 1997
Filed:
Aug. 16, 1996
Warren L Gawve, Lockport, NY (US);
Duane V Beales, Gasport, NY (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A plate type oil cooler has a louvered cooling fin with corrugations running transverse to the axis of the plates. The plates have central flat areas spaced from each other by a constant thickness, each of which transitions into a marginal edge across a semi-cylindrical area of progressively decreasing thickness. The cooling fin has its height tapered and reduced at the side edges in such a way as to fit between the semi-cylindrical areas of the opposed plates without binding. This is achieved by stamping the side edges of the fin walls with localized indentations which pull the fin height in enough to match the reduced thickness areas of the plates. Therefore, the bypass oil flow areas that would otherwise exist are at least partially blocked, improving thermal efficiency.