Compensated barrier and lubrication fluids pressure regulation system for a subsea motor and pump module

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United States of America Patent

PATENT NO 9435330
APP PUB NO 20140147299A1
SERIAL NO

13806532

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Abstract

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A compensated barrier and lubrication fluids pressure regulation system for a subsea motor and pump module is disclosed. The system comprises a hydraulic fluid supply, a barrier fluid circuit, and a lubrication fluid circuit. Hydraulic fluid in the barrier fluid circuit is pre-tensioned towards a motor by a first separating pressure compensator which is responsive to the pressure in the lubrication fluid circuit and which applies the sum of the pressure in the lubrication fluid circuit and an inherent pre-tensioning pressure to the barrier fluid circuit. Hydraulic fluid in the lubrication fluid circuit is pre-tensioned towards a pump by a second separating pressure compensator which is responsive to a pumped medium pressure at a suction side or at a discharge side of the pump and which applies the sum of the pumped medium pressure and an inherent pre-tensioning pressure to the lubrication fluid circuit.

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Patent Owner(s)

Patent OwnerAddress
VETCO GRAY SCANDINAVIA ASFORSKARGRAND 8 B194 VASTERAS 72226

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tomter, Ole Petter Nesøya, NO 5 11

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