Flushing of a touchdown bearing
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United States of America Patent
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-
Dec 19, 2023
Grant Date -
Sep 16, 2021
app pub date -
Feb 26, 2021
filing date -
Mar 13, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A compressor with a touchdown bearing and a supply line for injecting a working fluid toward the touchdown bearing, and a vapor compression system incorporating the same are provided. The supply line injects working fluid approximately continuously when the compressor is operational. The compressor includes a magnetic bearing for levitating the rotating shaft when the compressor is operational. The touchdown bearing is used to support the rotating shaft when the compressor is shutdown. The touchdown bearing may be disposed, at least partially, between a pair of races. The injecting of the working fluid may cause the touchdown bearing to rotate between the races. The injecting of the working fluid may help mitigate a buildup of a debris between the touchdown bearing and the races.
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