SUBSTRATE TRANSPORT APPARATUS
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United States of America
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Issued Date -
Mar 13, 2025
app pub date -
Sep 6, 2024
filing date -
Sep 6, 2024
priority date (Note) -
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Abstract
A brushless electrical machine includes: a frame; an electric machine stator connected to the frame and having a phase coil disposed in an atmospheric volume holding an atmospheric environment; an electric machine rotor cooperatively coupled to the electric machine stator so as to generate an output under stimulation from the electric machine stator, the electric machine rotor being disposed in a sealed environment sealed from and different than the atmospheric volume; and a seal that seals the electric machine rotor from the electric machine stator. The electric machine rotor and electric machine stator are disposed in an axial gap arrangement with an axial gap between the electric machine rotor and electric machine stator disposed astride the electric machine stator, and the seal is arranged in the axial gap so as to seal each electric machine stator from each electric machine rotor stimulated by the electric machine stator across the seal.
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