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US 10,760,582 B2Granted
Stabilizing arrangement for a rotating vertical shaft of a machine, machine and stabilizing method
AssigneeNuovo Pignone S.p.A.
InventorsAndrea Massini, Leonardo Tognarelli, Carlo Maria Martini
Life of this patent
Estimating the term…
Abstract
A stabilizing arrangement for a rotating shaft including a shaft being arranged substantially vertically in a machine so as to rotate during machine operation, first pressure delivery system for delivering a fluid pressure, in particular of a fluid circulating inside the machine, at a first location of the machine. First location is close to the shaft and part of first pressure delivery system is arranged at first location so as to exert a lateral pulling or pushing action on the shaft.
Claims9
A stabilizing arrangement comprising:
- a rotatable shaft arranged substantially vertically in a machine so as to rotate during machine operation;
- a first pressure delivery system for delivering a first fluid pressure at a first location proximate the rotatable shaft;
- a second pressure delivery system for delivering a second fluid pressure at a second location proximate the shaft, wherein the second location is axially spaced from the first location relative to the rotational axis of the rotatable shaft;
- at least a first pressure delivery opening located at the first location;
- a first sealing device surrounding the at least first pressure delivery opening and adhering to a first surface area of the rotatable shaft;
- at least a second pressure delivery opening located at the second location;
- and
- a second sealing device surrounding the at least a second pressure delivery opening and adhering to a second surface area of the rotatable shaft,
- wherein the first and the second pressure delivery systems each comprise a bleeding system of a working fluid of the machine, one bleeding system connected to a suction flange of the machine to generate the first fluid pressure and the other bleeding system connected to a discharge flange of the machine to generate the second fluid pressure, the first and second fluid pressures acting on the shaft to stabilize the shaft when rotating.
6 more elements
A machine, comprising
- a stabilizing arrangement for a rotatable shaft comprising:
- a rotatable shaft arranged substantially vertically in the machine so as to rotate during machine operation;
- a first pressure delivery system for delivering a first fluid pressure at a first location proximate the rotatable shaft;
- a second pressure delivery system for delivering a second fluid pressure at a second location proximate the shaft, wherein the second location is axially spaced from the first location relative to the rotational axis of the rotatable shaft;
- at least a first pressure delivery opening located proximate to the first location;
- a first sealing device surrounding the at least first pressure delivery opening and adhering to a first surface area of the rotatable shaft;
- at least a second pressure delivery opening located proximate to the second location;
- a second sealing device surrounding the at least a second pressure delivery opening and adhering to a second surface area of the rotatable shaft,
- wherein the first and the second pressure delivery systems each comprise a bleeding system of a working fluid of the machine, one bleeding system connected to a suction flange of the machine to generate the first fluid pressure and the other bleeding system connected to a discharge flange of the machine to generate the second fluid pressure, the first and second fluid pressures acting on the shaft to stabilize the shaft when rotating.
6 more elements
Dependencies are inferred from the claim text.