PRESSURE COMPENSATOR AND METHOD OF MANUFACTURING A PRESSURE COMPENSATOR
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United States of America Patent
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Aug 18, 2016
app pub date -
Dec 17, 2015
filing date -
Dec 17, 2015
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Abstract
A pressure compensator for providing pressure compensation for a subsea device is provided. The pressure compensator has a compensator wall enclosing a compensation chamber and at least one bellows assembly. The bellows assembly includes a metal bellows that forms part of the compensator wall. The metal bellows is deformable to change the inner volume of the compensation chamber. The bellows assembly further includes an elastomeric bellows provided on the compensator wall and covering at least the metal bellows. A seal seals the space between the metal bellows and the elastomeric bellows. The space between the metal bellows and the elastomeric bellows is provided with a vacuum.
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