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:
Feb. 17, 2026
Filed:
Nov. 24, 2021
Cummins Generator Technologies Limited, Peterborough, GB;
Robert Rolston, Peterborough, GB;
Anand Odedra, Peterborough, GB;
Jonathan Nutt, Peterborough, GB;
Abhinav P. Tobin, Peterborough, GB;
Cummins Generator Technologies Limited, Peterborough, GB;
Abstract
A rotor () for a rotating electrical machine is disclosed. The rotor comprises a plurality of salient poles () and rotor windings () wound on the salient poles. A cooling vent () is provided through the rotor windings, the cooling vent extending through the rotor windings in an axial direction and a radial direction. The cooling vent () extends in an axial direction from one end of the rotor pole to the other. The cooling vent () may be formed by a plurality of discontinuous spacers (), or by a spacer () which extends continuously around the rotor pole (). Providing a cooling vent which extends through the rotor windings in an axial direction and a radial direction may help to improve the thermal performance of the machine in efficient and cost-effective manner.