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:
Jan. 22, 2019
Filed:
May. 27, 2016
Alstom Transport Technologies, Saint-Ouen, FR;
Andry Randria, Besancon, FR;
Bruno Raguin, Beure, FR;
GĂ©rard Tripot, Chenecey-Buillon, FR;
Benali Boualem, Saone, FR;
Alstom Transport Technologies, Saint-Ouen, FR;
Abstract
This electric motor includes a frame defining an internal volume and comprising a rotor and a stator, a primary cooling circuit comprising at least one primary conduit and in fluidic communication with the outside of the frame for circulating a gas stemming from the outside of the frame in the internal volume of the frame, a secondary cooling circuit extending in the internal volume of the frame and isolated from the outside of the frame, said secondary cooling circuit comprising at least one first cooling channel going through the rotor and at least one second cooling channel going through the stator, wherein it comprises at least one heat insulation channel interposed between the primary conduit of the primary cooling circuit and the second cooling channel of the secondary cooling circuit.