MONITORING A HYDRAULIC FLUID FILTER
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United States of America Patent
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Jan 1, 2015
app pub date -
Jun 27, 2014
filing date -
Jun 27, 2013
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Abstract
A hydraulic circuit for supplying hydraulic fluid to a subsea control module of a control system for an underwater hydrocarbon well, the hydraulic circuit including an input for hydraulic fluid, a filter connected with the input for filtering hydraulic fluid from the input, an output for supplying hydraulic fluid from the filter to the subsea control module, first sensing means for sensing pressure of hydraulic fluid from the input upstream of the filter, second sensing means for sensing pressure of hydraulic fluid downstream of the filter, and a subsea electronics module in the subsea control module, the subsea electronics module being coupled with the first and second sensing means and being adapted to produce an indication related to a hydraulic fluid pressure differential across the filter.
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