Patent ID: 9729032
Date: 2017-08-08
CPC Classifications: H02K,Y10T

Claim:
1. A rotor comprising: a shaft; a structure comprising at least one end ring and rotor bars, wherein at least the end ring comprises a material subject to expansion or movement radially outward from the shaft upon a rotor balancing process that involves spinning of the structure; a containment ring positioned on the end ring; a core that at least partially encloses the rotor bars; and a protrusion structure on one of the structure and the core, and a slot structure on another of the structure and the core, wherein a gap initially exists between a radially outermost portion of the protrusion structure and a radially outermost surface of the slot structure, and wherein the expansion or movement radially outward of the structure is limited when the radially outermost portion of the protrusion structure contacts the radially outermost surface of the slot structure.