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:
Mar. 26, 2013
Filed:
Nov. 30, 2011
Reinhard Beatty, Blacksburg, VA (US);
Bradley A. Trago, Blacksburg, VA (US);
Gerald W. Brown, Radford, VA (US);
Ian Hovey, Christiansburg, VA (US);
Ron Bishop, Radford, VA (US);
Reinhard Beatty, Blacksburg, VA (US);
Bradley A. Trago, Blacksburg, VA (US);
Gerald W. Brown, Radford, VA (US);
Ian Hovey, Christiansburg, VA (US);
Ron Bishop, Radford, VA (US);
Kollmorgen Corporation, Radford, VA (US);
Abstract
The stator of a fluid cooled electric machine, such as a motor, a generator, or a motor/generator assembly, includes an annular stator core including inwardly projecting teeth and external grooves in an outer surface of the core that are radially aligned with the teeth. Electrically conductive windings are mounted on the inwardly projecting teeth, and a pipe assembly for coolant has a pipe formed into a serpentine shape. The pipe includes axially extending pipe portions received in the external stator core grooves, and end turns interconnecting adjacent pairs of the axially extending pipe portions. Heat conduction elements are secured to the end turns of the coolant pipe, and a housing surrounding the outer surface of the stator core retains the axially extending pipe portions within the external grooves.