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:
Apr. 19, 1994
Filed:
Sep. 30, 1992
Stephen E Lindquist, Boylston, MA (US);
Douglas A Bailey, Concord, MA (US);
Digital Equipment Corporation, Maynard, MA (US);
Abstract
An apparatus is disclosed for fluid dynamically augmenting a heat sink to displace a boundary layer in the cooling fluid adjacent to the surfaces of the heat sink cooling fins. Ribs with a thickness slightly less than the thickness of the boundary layer cause secondary flow in the cooling fluid downstream from the rib in the form of vortices which displace hotter slower moving fluid by drawing in cooler fluid farther from the surface of the fins. The ribs are constructed on the surface of the cooling fins in an inverted V-shaped configuration. The angle of the ribs in the inverted V-shaped configuration is optimized to intersect the entire flow of the fluid through the heat sink forming a means for efficient dissipating heat from the heat sink over its entire surface area.