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:
Sep. 19, 2017
Filed:
Feb. 08, 2016
Alstom Transport Technologies, Saint-Quen, FR;
Andry Randria, Besancon, FR;
Bruno Raguin, Beure, FR;
Alstom Transport Technologies, Saint-Ouen, FR;
Abstract
A motor includes a frame defining an internal volume in which are housed a rotor and a stator; at least one cooling circuit, which includes a primary inlet and a primary outlet in fluidic communication with the outside of the frame; at least one cooling device outside the frame, which includes a secondary air inlet and a secondary air outlet, and a conduit; at least one secondary cooling circuit, separate from the primary circuit, crossing the rotor and in fluidic communication with the secondary inlet and the secondary outlet of the cooling device. The secondary cooling circuit is crossed by a channel of the primary cooling circuit supplying the stator with the gas fluid from the outside of the frame.