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. 08, 2020
Filed:
Apr. 03, 2013
Lcdrives Corp., Goshen, CT (US);
Russel Hugh Marvin, Goshen, CT (US);
LCDRIVES CORP., Goshen, CT (US);
Abstract
A rotary electric machine includes a stator having a circumferentially spaced series of axially extending teeth defining winding slots therebetween. Stator windings are at least partially disposed in each winding slot and electrically connected to form a plurality of phases. One or more slots contain the same magnitude of current at substantially all times for each phase. Structure defines a plurality of elongated coolant passageways disposed in each winding slot. A subset of the coolant passageways contained in the slots for a single phase is an even number. Fluid flows in one direction for half of the subset of coolant passageways and in the opposite direction for the other half of the subset of coolant passageways. At least two of the coolant passageways in the machine are fluidly connected in parallel. At least one of the coolant passageways is located circumferentially between two windings in the same slot.