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:
Oct. 08, 2024
Filed:
Jun. 23, 2020
Pukyong National University Industry-university Cooperation Foundation, Busan, KR;
Hansang Kwon, Busan, KR;
Abstract
This application relates to a method of manufacturing a cooling pipe for a powertrain of an electric vehicle. The method may include preparing a powdered composite material by ball-milling aluminum alloy particles and carbon nanotube particles. The method may also include preparing a multilayer billet containing the powdered composite material and comprising a core layer and two or more shell layers surrounding the core layer. The method may further include extruding the multilayer billet to produce a pipe-shaped extrusion. The core layer is made of the powdered composite material or an aluminum alloy, the outermost shell layer of the two or more shell layers is made of an aluminum alloy, and the remaining shell layers are made of an aluminum alloy. This application also relates to a cooling pipe manufactured by the method, an electric vehicle motor and an electric vehicle battery pack casing including the cooling pipe.