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. 23, 2025
Filed:
Mar. 18, 2022
Rivian Ip Holdings, Llc, Irvine, CA (US);
Venkata Harish Kumar Kunatharaju, Irvine, CA (US);
Dang Dinh Dang, Garden Grove, CA (US);
Rivian IP Holdings, LLC, Irvine, CA (US);
Abstract
Rotor channels extend axially in a rotor to provide flow of coolant in opposite directions to provide a more uniform thermal gradient. The rotor channels include a first rotor channel coupled to a first feed hole via an annulus and extending axially in a first direction to a first side hole, and a second rotor channel coupled to a second feed hole via an annulus and extending axially in the opposite direction to a second side hole. The rotor includes a first end plate arranged at a first axial position that includes the first side hole, and a second end plate arranged at a second axial position that includes the second side hole. The first and second end plates are identical and are arranged azimuthally at an angle to each other. Fluid flows through the channels, cooling the rotor, and then flows past end windings for stator cooling.