Rotor assembly for an electric motor
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United States of America
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Feb 11, 2025
Grant Date -
Jan 25, 2024
app pub date -
Jul 19, 2022
filing date -
Jul 19, 2022
priority date (Note) -
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Abstract
A rotor assembly includes a shaft defining a lubricant inlet channel for receiving a lubricant and a lamination stack. The lamination stack is rotatably coupled to the shaft, extends between first and second lamination stack ends, and defines a lubricant cooling channel in fluid communication with the lubricant inlet channel. The rotor assembly also includes a first end cap adjacent to the first lamination stack end and a second end cap adjacent to the second lamination stack end. One of the first end cap and the second end cap defines an end cap inlet at a first radial distance from the shaft, a lubricant outlet channel defined to extend at least partially radially inward toward the shaft, and an end cap outlet at a second radial distance from the shaft which is less than the first radial distance for expelling the lubricant.
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