AXIAL BEARING OFFLOADING IN FLUID PROCESSING MACHINES
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United States of America Patent
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Issued Date -
May 11, 2017
app pub date -
Nov 10, 2015
filing date -
Nov 10, 2015
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Abstract
The axial reaction force generated by a subsea pump or compressor is partially counteracted by a pressure differential in a barrier fluid across a thrust element. The pressure differential is created using impellers or other structures on the thrust element that increases the barrier fluid pressure on one side of the thrust element when the main shaft of the pump or compressor is rotated. The pressure differential across the thrust element partially offloads the bearing surface of the thrust element.
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