UNDERWATER SYSTEM FOR PRESSURE COMPENSATION Russian patent published in 2014 - IPC B63C11/52 

FIELD: transport.

SUBSTANCE: invention relates to underwater pressure compensators to be used with electrical or mechanical. Proposed system comprise jacket 1 filled with fluid and arranged around chamber 3, first pressure compensator 10 with first chamber 11 and second chamber 12. Note here that first chamber 11 communicates with chamber 3. It has also second pressure compensator with third chamber 21 and fourth chamber 22. Second pressure compensator third chamber 21 communicates with first compensator second chamber 21. First compensator first chamber 11 is separated from second chamber 12 by first bellows 13. Second compensator third chamber 21 is separated from second compensator fourth chamber 22 by second bellows 23. Jacket 1 filled with fluid is enclosed is extra jacket 2 filled with fluid. Note here that extra jacket 2 surrounds extra chamber 4 filled with second fluid. Second compensator third chamber 21 communicates with extra chamber 4 of said extra jacket 2 so that first and second pressure compensators can compensate for pressure and/or volume of both jackets filled with fluid.

EFFECT: higher reliability of pressure compensation.

8 cl, 3 dwg