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:
Jul. 27, 2021
Filed:
Nov. 20, 2017
Nissan Motor Co., Ltd., Yokohama, JP;
Karim Mikati, Paris, FR;
Emmanuel Motte, Saint Jean du Cardonnay, FR;
Fabrice Bernardin, Vaux sur Seine, FR;
NISSAN MOTOR CO., LTD., Yokohama, JP;
Abstract
A wound rotor () has a structure defining a circumferential alternation of teeth and grooves. The teeth respectively receives longitudinal windings. The rotor () has longitudinal ends (') and the windings defining, at the longitudinal ends of the rotor (), protruding coil heads (). A collar (′) for mechanically holding the windings is installed at one of the longitudinal ends (′) of the rotor () so as to define a central opening (′). A nozzle (′) projects a liquid coolant through the central opening (′) onto the coil head (). The collar (′) has an escape duct (′) allowing escape of the liquid coolant projected onto the coil heads () to an outside of the collar (′). A longitudinal end of the collar (′) has a constant reduction in an outer diameter.