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Machine translation
1. (WO2016091596) STABILIZING ARRANGEMENT FOR A ROTATING VERTICAL SHAFT OF A MACHINE, MACHINE AND STABILIZING METHOD
Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

CLAIMS :

1. A stabilizing arrangement for a rotating shaft (12) comprising:

a shaft (12) being arranged substantially vertically in a machine (10) so as to rotate during machine operation,

first pressure delivery system (22, 23, 30) for delivering a fluid pressure, in particular of a fluid circulating inside the machine (10), at a first location (1) of the machine (10),

wherein said first location (1) is close to the shaft (12) and part of said first pressure delivery system (22, 23, 30) is arranged at said first location (1) so as to exert a lateral pulling or pushing action on the shaft (12).

2. The arrangement of claim 1 , wherein said first pressure delivery system comprises at least a first pressure delivery opening (23) located at said first location (1) close to the shaft (12) and a sealing device (30) surrounding said at least first pressure delivery opening (23), the sealing device (30) being close to the shaft (12).

3. The arrangement of claim 1 or claim 2, comprising further :

second pressure delivery system (24, 25, 30) for delivering a fluid pressure, in particular a fluid circulating inside the machine (10), at a second location (2) of the machine (10),

wherein said second location (2) is close to the shaft (12) and part of said second pressure delivery system (24, 25, 30) is arranged at said second location (2) so as to exert a lateral pulling or pushing action on the shaft (12).

4. The arrangement of claim 3, wherein said second pressure delivery system comprises at least a second pressure delivery opening (25) located at said second location (2) close to the shaft (12) and a sealing device (30) surrounding said at least a second pressure delivery opening (25), the sealing device (30) being close to the shaft (12).

5. The arrangement of claim 2 or 4, wherein said sealing device (30) comprises a pad embodying a seal of a labyrinth type.

6. The arrangement of claim 3, wherein said first location (1) and said second location (2) are remote from each other, in particular are at substantially opposite ends of the shaft (12).

7. The arrangement of claims 2 or 4, wherein said first and/or second pressure delivery systems comprise bleeding system or systems (21 ; 26) of a working fluid of the machine (10), the bleeding system or systems (21 ; 26) being in fluid connection (22; 24) to said pressure delivery openings (23; 25).

8. The arrangement of any of the preceding claim, wherein said bleeding system or systems comprise a first bleeding conduit (21) fluidly connecting a suction flange (19) of the machine (10) and the first pressure delivery opening (23), and/or a second bleeding conduit (26) fluidly connecting a discharge flange (20) of the machine (10) and the second pressure delivery opening (25).

9. A machine, comprising an arrangement according to any of the preceding claims.

10. The machine of claim 9, comprising a single or multi phase pump or a compressor, in particular for subsea applications.

1 1. The machine of claim 9 or 10, being a machine for processing oil and/or natural gas and/or sea water.

12. A method for stabilizing a rotating shaft (12) of a machine (10) being arranged substantially vertically, wherein a lateral pulling or pushing action is applied to the rotating shaft (12) at least at a first position (1) close to the shaft (12).

13. The method of claim 12, wherein lateral actions are applied to the rotating shaft (12) at a first position (1) and at a second position (2) close to the shaft (12), in particular said first position (1) and said second position (2) being remote from each other.

14. The method of claim 12 or 13, wherein the or each lateral action is generated directly or indirectly by a fluid under pressure in the machine (10), in particular a working fluid of the machine (10).

15. The method of claim 12 or 13, wherein the or each lateral pulling or pushing action is generated directly or indirectly by a fluid under pressure through delivery of a fluid pressure or a fluid flow.

16. The method of claim 14 or 15, wherein the lateral actions are provided by a working fluid of the machine (10) bled from points of the machine (10) at different pressures.