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:
Dec. 31, 1991
Filed:
Sep. 07, 1989
Toshio Hatada, Tsuchiura, JP;
Takayuki Atarashi, Tsuchiura, JP;
Takahiro Daikoku, Ushiku, JP;
Satomi Kobayashi, New York, NY (US);
Shizuo Zushi, Hadano, JP;
Fumiyuki Kobayashi, Sagamihara, JP;
Susumu Iwai, Hadano, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A cooling system for cooling an electronic device by allowing a cooling fluid to flow in contact with heat generating components such as LSI chips of the electronic device arranged in series along the major flow of the cooling fluid. The cooling system has heat radiation fins attached to the heat-generating components, and a cooling duct defining a cooling fluid flow passage in which assemblies composed of the heat-generating components and the heat radiation fins are disposed. The flow passage has, at the upstream end of the upstream end assembly, a cross-sectional area greater than that of the assembly when taken in a plane perpendicular to the direction of the major flow of the cooling fluid. The cross-sectional area of the flow passage progressively decreases towards the downstream end, whereby the flow passage is divided into a main passage through which a main flow component of the cooling fluid directly flows into the series of assemblies and an auxiliary passage through which an auxiliary component of the cooling fluid flows substantially vertically towards the heat-generating component to impinge upon the heat generating component.