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US 12,763,641 B2Granted
Rotating electrical machine balance ring
AssigneeBorgWarner Inc.
InventorsKirk Neet, Matthew R. Conner
Life of this patent
Estimating the term…
Abstract
A balance ring assembly for coupling to a rotor assembly of a rotating electrical machine, including a balance ring, configured to couple to a rotor assembly, formed from a ferromagnetic material, that is axially spaced from the rotor assembly by a pre-defined amount.
Claims16
A balance ring assembly for coupling to a rotor assembly of a rotating electrical machine, comprising:
- a balance ring, configured to couple to a rotor assembly, formed from a ferromagnetic material, that is axially spaced from the rotor assembly by a pre-defined amount;
- and
- a magnetically-insulating spacer coupled to a radial face of the balance ring and configured to couple to an end face of the rotor assembly;
- wherein the axial length of the magnetically-insulating spacer ring is equal to or greater than a radial distance between an inner diameter of a stator assembly and an outer diameter of the rotor assembly.
1 more element
A balance ring assembly for coupling to a rotor assembly of a rotating electrical machine, comprising:
- a monolithic balance ring, having a substantially circular inner diameter and a substantially circular outer diameter, configured to couple to an end face of the rotor assembly;
- a plurality of protuberances formed on one surface of the monolithic balance ring in between the inner diameter and the outer diameter, configured to abut the end face of the rotor assembly and axially space the monolithic balance ring from the end face by an axial length of the protuberances, wherein the axial length of the plurality of protuberances is equal to or greater than a radial distance between an inner diameter of a stator assembly and an outer diameter of the rotor assembly.
A balance ring assembly for coupling to a rotor assembly of a rotating electrical machine, comprising:
- a balance ring, having a substantially circular inner diameter and a substantially circular outer diameter;
- an magnetically-insulating spacer, having an inner diameter and an outer diameter, coupled to the balance ring such that a first radial face of the magnetically-insulating spacer abuts a radial face of the balance ring, and a second radial face of the magnetically-insulating spacer is configured to abut an end face of the rotor assembly, wherein the axial length of the magnetically-insulating spacer ring is equal to or greater than a radial distance between an inner diameter of a stator assembly and an outer diameter of the rotor assembly.
Dependencies are inferred from the claim text.