EP4189217A1 - Hydraulisches axiallager für eine gasturbineneinheit zur schaufelspalteinstellung - Google Patents
Hydraulisches axiallager für eine gasturbineneinheit zur schaufelspalteinstellungInfo
- Publication number
- EP4189217A1 EP4189217A1 EP21777237.5A EP21777237A EP4189217A1 EP 4189217 A1 EP4189217 A1 EP 4189217A1 EP 21777237 A EP21777237 A EP 21777237A EP 4189217 A1 EP4189217 A1 EP 4189217A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- hydraulic units
- rotor
- axial
- moved
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 14
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 239000003570 air Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- RLQJEEJISHYWON-UHFFFAOYSA-N flonicamid Chemical group FC(F)(F)C1=CC=NC=C1C(=O)NCC#N RLQJEEJISHYWON-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
- F01D11/14—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing
- F01D11/20—Actively adjusting tip-clearance
- F01D11/22—Actively adjusting tip-clearance by mechanically actuating the stator or rotor components, e.g. moving shroud sections relative to the rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
- F01D25/166—Sliding contact bearing
- F01D25/168—Sliding contact bearing for axial load mainly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/02—Sliding-contact bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/26—Brasses; Bushes; Linings made from wire coils; made from a number of discs, rings, rods, or other members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/50—Bearings
- F05D2240/52—Axial thrust bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/40—Transmission of power
- F05D2260/406—Transmission of power through hydraulic systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/50—Control logic embodiments
- F05D2270/56—Control logic embodiments by hydraulic means, e.g. hydraulic valves within a hydraulic circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/60—Control system actuates means
- F05D2270/64—Hydraulic actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/23—Gas turbine engines
Definitions
- the present invention relates to a bearing with an annular bearing body, on whose axially opposite end faces two axial bearings are provided, each comprising a plurality of bearing elements which are distributed over the circumference, protrude in the axial direction and have a bearing surface.
- the invention also relates to a gas turbine unit with a stator, a rotor accommodated in the stator and mounted for rotation about an axis of rotation, and a plurality of stages of moving blades held on the rotor and guide vanes held on the stator, at least one bearing of the aforementioned type being provided for the rotor bearing .
- the invention relates to a method for increasing the efficiency of a gas turbine unit with a stator, a rotor accommodated in the stator and rotatably mounted about an axis of rotation, and several stages of rotor blades held on the rotor and guide vanes held on the stator.
- gas turbine units comprise a stator, a rotor accommodated in the stator and rotatably mounted about an axis of rotation and several stages of rotor blades held on the rotor and guide vanes held on the stator, which are passed by a working medium in one direction of flow during operation of the gas turbine unit, as a result of which the Working medium gradually relaxed and the rotor is driven to rotate.
- the gap dimensions of the radial gaps between the free ends of the rotor blades and the stator are as small as possible in order to avoid flow losses.
- a movement of the rotor beyond one of the stops is also not provided. Accordingly, an HCO system is activated once when the stationary operating state is reached to shift the rotor. However, this operating state only occurs after several hours, which is why the gas turbine unit can only work with limited efficiency up to that point. It is also not possible to activate the HCO system earlier, since you have to wait until the maximum gap size, for which the HCO system is designed to compensate, occurs. Earlier activation of the HCO system would result in the blades colliding with the stator.
- the present invention creates a bearing with an annular bearing body, on whose axially opposite end faces two axial bearings are provided, each of which has a plurality of bearing elements distributed over the circumference, projecting and movable in the axial direction and having a bearing surface
- each axial bearing is assigned a first set of hydraulic units with a plurality of hydraulic units distributed over the circumference and which can be subjected to a uniform pressure
- the pistons of which act on the bearing elements of the corresponding axial bearing in such a way that the bearing elements are moved outwards by a predetermined uniform first amount of movement in the axial direction
- each axial bearing is assigned at least one second set of hydraulic units with a plurality of hydraulic units arranged distributed over the circumference and which can be subjected to a uniform pressure, the pistons of which are in such a way on the bearing elements of the assigned Axial bearing act that the bearing elements are also moved outwards by a predetermined uniform second degree of movement in the axial direction
- Such a bearing positioned between two shaft shoulders of a rotor enables the rotor to be moved back and forth in two or more stages in the axial direction.
- the rotor of a gas turbine unit can be moved at least once into an intermediate position between the start-up of the gas turbine unit and the attainment of the stationary operating state, in which the radial gap dimensions between the moving blades and the rotor are reduced, as a result of which the efficiency of the gas turbine unit is already significantly increased will . From this intermediate position, the rotor can then be moved further in the axial direction when the stationary operating state is reached in order to set the optimum gap dimension for this stationary operating state. The same applies, of course, in reverse order when shutting down the gas turbine unit.
- the hydraulic units of the first set of hydraulic units assigned to an axial bearing and the hydraulic units of the second set of hydraulic units assigned to the same axial bearing are preferably arranged alternately to one another in the circumferential direction, so that the hydraulic units of each set can act as uniformly as possible on the bearing elements and thus on the rotor. If another set of hydraulic units is provided, the hydraulic units of the individual sets are preferably arranged in the circumferential direction in such a way that they also form a regularly recurring pattern.
- Each set of hydraulic units is preferably assigned a separate oil supply system which has oil channels which connect the pistons to a hydraulic oil source.
- the pistons of the hydraulic units of the first set of hydraulic units assigned to an axial bearing and the pistons of the hydraulic units of the second set of hydraulic units assigned to the same axial bearing are each accommodated in a recess of the bearing body and fixed via a bushing inserted into the recess from the outside and fastened to the bearing body , wherein the bearing body and the bushes form stops in the axial direction, which define the predetermined first degree of movement and the predetermined second degree of movement.
- the pistons of the hydraulic units of the first set which can be extended by 1mm, move the bearing elements by 1mm.
- the pistons of the hydraulic cylinders of the other set which can each be extended by 3mm, then move the bearing elements positioned on the same end face of the bearing by a further 2mm.
- the pistons of the hydraulic units of both sets of hydraulic units assigned to an axial bearing are each accommodated in a recess in the bearing body, the pistons of the hydraulic units of the first set of hydraulic units assigned to this axial bearing being held at their free end on a bearing body by the second predetermined amount of movement axially movable piston ring, and wherein the pistons of the hydraulic units of the second set of hydraulic units assigned to this axial bearing each rest at their free end on a guided through an assigned axial through-opening of the piston ring cylindrical pressure element, which when the Hydraulic units of the second set of hydraulic units are pressurized from a position not protruding axially outwardly from the piston ring to about the predetermined first amount of movement is moved axially outward from the piston ring protruding position.
- the piston ring is preferably accommodated on the bearing body so that it can move axially back and forth between two stops, with the piston ring forming a stop for the pistons of the hydraulic units of the second set of hydraulic units. In this way a simple structure is achieved.
- the bearing has a radial bearing on the inner circumference, as a result of which an axial-radial bearing is formed overall.
- the present invention creates a gas turbine unit with a stator, a rotor accommodated in the stator and rotatably mounted about an axis of rotation and several stages of rotor blades held on the rotor and guide vanes held on the stator, characterized in that at least one bearing according to the invention is used for the rotor bearing is provided .
- the present invention creates a stationary gas turbine with a gas turbine unit according to the invention.
- the present invention creates a method for increasing the efficiency of a gas turbine unit with a stator, a rotor accommodated in the stator and rotatably mounted about an axis of rotation via bearings, and a plurality of stages of moving blades held on the rotor and guide vanes held on the stator, in particular a gas turbine unit of a stationary gas turbine, in which the rotor can be moved hydraulically axially in the flow direction of a working medium flowing through the gas turbine unit in at least two stages, each by a predetermined amount of movement, and in which the rotor can be moved axially counter to the flow direction in at least two stages, each by a predetermined The amount of movement can be moved hydraulically, in particular using a bearing according to the invention.
- the bearing elements of an axial bearing arranged on one end face of a bearing are moved by a predetermined uniform first amount of movement in the axial direction in such a way that the rotor is moved by the predetermined first amount counter to the direction of flow of a working medium flowing through the gas turbine unit Movement is moved relative to the stator, and when a predetermined operating state is reached, the bearing elements of the same axial bearing are moved by a predetermined uniform second movement in the axial direction in such a way that the rotor is moved further relative to the stator by the predetermined second movement counter to the direction of flow.
- bearing elements of an axial bearing arranged on the opposite end face of the same bearing are preferably moved by a predetermined uniform second amount of movement in the axial direction in such a way that the rotor is moved by the predetermined second amount of movement in the direction of flow relative to the stator, and when a predetermined operating state on the same end face of the same axial bearing arranged bearing elements are moved further by a predetermined uniform first amount of movement in the axial direction such that the rotor is further moved by the predetermined first amount of movement in the direction of flow relative to the stator.
- FIG. 1 is a longitudinal sectional view of a stationary gas turbine according to an embodiment of the present invention
- FIG. 2 shows an enlarged view of the section designated by the reference number II in FIG. 1, which shows a bearing according to an embodiment of the present invention
- FIG. 3 shows a perspective view of the bearing shown in FIG. 2;
- FIG. 4 is a perspective view of the bearing shown in FIG. 3 with an element carrier carrying bearing elements removed;
- Figure 5 is an end view of the assembly shown in Figure 4.
- FIG. 6 shows a sectional view along the line VI-VI in FIG. 5;
- FIG. 7 shows a sectional view along the line VI I-VI I in FIG. 5;
- Figure 8 is a perspective sectional view of the assembly shown in Figure 7;
- FIG. 9 shows an end view of the arrangement shown in FIG. 4 from the other side, with an element carrier receiving bearing elements also being removed here;
- Figure 10 is a sectional view taken along the line X-X in Figure 9;
- Figure 11 is a perspective sectional view of the assembly shown in Figure 10;
- Figure 12 is a sectional view along the line XI I-XI I in
- FIG. 13 shows an end view of the arrangement illustrated in FIG. 4, which shows an example of the positioning of oil channels of an oil supply system
- FIG. 14 shows a sectional view of the arrangement shown in FIG.
- Figure 1 shows a stationary gas turbine 1 with a rotor 5 rotatably mounted about an axis of rotation 2 via bearings 3 and 4, along which an intake housing 6, a compressor 7, a torus-like annular combustion chamber 8 with a plurality of burners 9 arranged rotationally symmetrically to one another, a gas turbine unit 10 and a Exhaust housing 11 are positioned.
- the compressor 7 comprises a ring-shaped compressor channel 12 with cascaded successive compressor stages consisting of blade and guide blade rings.
- the compressor channel 12 opens out into a plenum 14 via a compressor outlet diffuser 13 .
- the annular combustion chamber 8 is provided with its combustion chamber 15 which communicates with an annular hot gas duct 16 of the turbine unit 10 .
- turbine stages 17 connected in series are arranged in the turbine unit 10 , each of which consists of a ring of moving blades 18 held on the rotor and a guide vane held on the stator 19 surrounding the rotor 5 .
- a generator not shown in detail here, or a working machine, not shown in detail, is coupled to the rotor 5 .
- the compressor 7 draws in ambient air through the intake housing 6, which is compressed in the compressor 7.
- the compressed air is conducted through the compressor outlet diffuser 13 into the plenum 14 , from where it flows into the burner 9 .
- Fuel also reaches the combustion chamber 15 via the burners 9 .
- There the fuel is mixed with the addition of compressed air combusted into a hot gas which forms the working fluid of the gas turbine unit 10 .
- the hot gas then flows into the hot gas duct 16 where it expands on the turbine blades of the turbine unit 10 to perform work.
- the energy released during this time is absorbed in the rotor 5 and used on the one hand to drive the compressor 7 and on the other hand to drive the generator or of the work machine used .
- the gap dimensions of radial gaps between the free ends of the blades 18 and the stator 19 are as small as possible in order to avoid flow losses. Since the gap dimensions gradually increase when the stationary gas turbine 1 is started up until a stationary operating state is reached, it is desirable to compensate for this increase in the gap dimensions by a relative movement between the rotor 5 and the stator 19 . In the present case, this relative movement is realized by the bearing 3 on the compressor side, which is firmly connected to the stator 19 on the outside and is shown in FIGS. 2 to 13.
- the bearing 3 comprises an annular bearing body 21 which in the present case is composed of a lower and an upper bearing body shell.
- Two axial bearings 22 , 23 are provided on the opposite end faces of the bearing body 21 .
- a radial bearing 24 is positioned on the inner circumference of the bearing 3 .
- Each of the two axial bearings 22 and 23 comprises a plurality of bearing elements 26 distributed over the circumference, protruding in the axial direction A, having a bearing surface 25 and each arranged on an element carrier 27 that can be moved axially back and forth.
- the axial bearing 22 of the bearing 3 pointing to the left in FIG. 2, which in the present case forms the so-called main track and is shown in more detail in FIGS. rate oil supply systems are fed.
- the hydraulic units 28 of the first set and the hydraulic units 29 of the second set basically have the same structure. They each comprise a piston 30 which is accommodated in a recess 31 of the bearing body 21 extending in the axial direction A and is fixed via a bushing 33 which is inserted into the recess 31 from the outside and is fastened to the bearing body 21 by fastening screws 32 .
- the bearing body 21 and the respectively associated bushing 33 each form stops 34 and 35 in the axial direction A, between which the piston 30 can be moved back and forth in the axial direction A by a predetermined amount of movement.
- the piston 33 is guided within the bushing 33 via guide rings 36 .
- the sealing of the bushing 33 with respect to the bearing body 21 and of the piston 33 with respect to the bushing 33 takes place via sealing rings 37 .
- the main difference between the hydraulic units 28 of the first set and the hydraulic units 29 of the second set of hydraulic units is that the predetermined amount of movement X, by which the pistons 30 can be moved back and forth in the axial direction A, is different from each other.
- the predetermined first amount of movement XI by which the pistons 30 of the hydraulic units 28 of the first set protrude axially outwards over the associated bushings 33 in the extended state is less than a predetermined second amount of movement X2 by which the pistons 30 of the hydraulic units 29 of the second set when extended, project axially outwards beyond the associated bushings 33, with the free ends of all bushings being positioned in a common plane perpendicular to the axial direction A .
- hydraulic units 28 are the first set of hydraulic units and hydraulic units 29 are the second set of hydraulic units arranged alternately to one another in the circumferential direction.
- the axial bearing 23 of the bearing 3 pointing to the right in Figure 2, which in the present case forms the so-called adjacent track and is shown in more detail in Figures 9 to 12, also includes two sets of hydraulic units which are fed independently of one another via separate oil supply systems and their hydraulic units 40 , 41 are again arranged alternately in the circumferential direction, as shown in FIG.
- the pistons 30 of the hydraulic units 40 and 41 of both sets are each accommodated in recesses 31 of the bearing body 21 extending in the axial direction A, guided via guide rings 36 and sealed via sealing rings 37 .
- the pistons of the hydraulic units 40 of the first set of hydraulic units rest at their free end on a piston ring 42 which is accommodated on the bearing body 21 so that it can move axially back and forth between two stops 34 and 35 which define the predetermined second movement dimension X2 of the piston ring 42 , which is 2mm .
- the pistons 30 of the hydraulic units 41 of the second set of hydraulic units are each connected at their free end to a cylindrical pressure element 44 guided through an associated axial through-opening 43 of the piston ring 42, which, when the hydraulic units 41 of the second set of hydraulic units are pressurized are moved axially over the pistons 30 from a non-axially outwardly projecting position of the piston ring 42 to a predetermined first amount of movement XI is moved outwards from the piston ring 42 projecting position, the first amount of movement XI is also 1mm here.
- the latter position is determined by the piston ring 42 which serves as a stop for the pistons 30 of the hydraulic units 41 of the second set.
- the oil channels supplying the hydraulic units 40 of the first set with hydraulic oil are each connected to one another, even if this is not shown here, whereby all the hydraulic units
- both the piston ring 42 and the pressure elements 44 are in the fully extended state, so that the pressure elements 44 exert pressure on the rotor shoulder 46 via the associated element carrier 27 and the bearing elements held on it.
- the rotor 5 is positioned in its extreme right position. After a first operating state has been reached, which occurs, for example, after half the time required to reach a stationary operating state, the hydraulic units 41 of the second set of hydraulic units of the right-hand thrust bearing 23 are depressurized and the hydraulic units 28 of the first Set of hydraulic units of the left thrust bearing 22 pressurized.
- the pistons 30 of the hydraulic units 28 press accordingly via the associated element carrier 27 and the bearing elements 26 held thereon against the rotor set 45 , so that the rotor 5 is pressed relative to the stator 19 by the predetermined first amount of movement XI to the left counter to the direction of flow of the working medium flowing through the gas turbine unit 10 .
- the gap dimensions of the radial gaps between the rotor blades 18 of the gas turbine unit 10 and the stator 19, which have increased since the start of the gas turbine unit 10, are reduced again.
- the hydraulic units 40 of the first set of hydraulic units of the right axial bearing 23 are depressurized and the hydraulic units 29 of the second set of hydraulic units of the left axial bearing 22 are pressurized.
- the pistons 30 of the hydraulic units 29 correspondingly press against the rotor shoulder 45 via the associated element carrier 27 and the bearing elements 26 held thereon, so that the rotor 5 is pressed to the left relative to the stator 19 by the predetermined second movement dimension X2.
- the gap dimensions which have increased again since the first operating state was reached until the stationary operating state was reached, are reduced again.
- a very efficient mode of operation of the gas turbine unit 10 is ensured in this way. If the gas turbine unit 10 is shut down again, the stator is moved in an analogous manner first by the predetermined amount X2 and then by the predetermined amount XI in the direction of flow of the working medium flowing through the gas turbine unit.
- a very efficient mode of operation is achieved.
- predetermined movement dimensions XI and X2 can basically be chosen arbitrarily. It should also be clear that the operating states, upon which the rotor 5 is moved relative to the stator 19, can be freely selected. The predetermined movement dimensions XI and X2 only have to be matched to the gap dimensions resulting in the operating conditions.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020212567.8A DE102020212567A1 (de) | 2020-10-06 | 2020-10-06 | Lager, Gasturbineneinheit mit einem solchen Lager sowie Verfahren zum Betreiben einer Gasturbineneinheit |
| PCT/EP2021/074773 WO2022073711A1 (de) | 2020-10-06 | 2021-09-09 | Hydraulisches axiallager für eine gasturbineneinheit zur schaufelspalteinstellung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4189217A1 true EP4189217A1 (de) | 2023-06-07 |
Family
ID=77910764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21777237.5A Withdrawn EP4189217A1 (de) | 2020-10-06 | 2021-09-09 | Hydraulisches axiallager für eine gasturbineneinheit zur schaufelspalteinstellung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20230332507A1 (de) |
| EP (1) | EP4189217A1 (de) |
| DE (1) | DE102020212567A1 (de) |
| WO (1) | WO2022073711A1 (de) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2986431A (en) * | 1958-02-05 | 1961-05-30 | Napier & Son Ltd | Pad type thrust bearings |
| CH450825A (de) * | 1966-12-23 | 1968-04-30 | Bbc Brown Boveri & Cie | Hydrostatisches Axiallager |
| DE2357881A1 (de) * | 1973-11-16 | 1975-05-22 | Mannesmann Meer Ag | Hydraulisch beaufschlagtes axialdrucklager |
| JP4509385B2 (ja) * | 1998-11-11 | 2010-07-21 | シーメンス アクチエンゲゼルシヤフト | ガスタービンの運転方法 |
| EP1479875A1 (de) | 2003-05-23 | 2004-11-24 | Siemens Aktiengesellschaft | Lager für die axiale Lagerung eines Läufers einer Gasturbine |
| ITMI20072442A1 (it) | 2007-12-28 | 2009-06-29 | Ansaldo Energia Spa | Gruppo cuscinetto per una turbina a gas |
| EP2549059A1 (de) * | 2011-07-21 | 2013-01-23 | Siemens Aktiengesellschaft | Verfahren zum Betrieb einer Rotationsmaschine |
| EP2873880A1 (de) | 2013-11-13 | 2015-05-20 | Siemens Aktiengesellschaft | Nicht symmetrisches bidirektionales Drucklager mit zwei aktiven Flächen |
| US9593589B2 (en) | 2014-02-28 | 2017-03-14 | General Electric Company | System and method for thrust bearing actuation to actively control clearance in a turbo machine |
| EP3495610B1 (de) * | 2017-12-07 | 2020-11-25 | Ansaldo Energia S.p.A. | Gasturbinenkraftwerk und verfahren zum betrieb des kraftwerks |
| KR102047328B1 (ko) * | 2017-12-21 | 2019-11-21 | 두산중공업 주식회사 | 가스터빈의 블레이드 팁 간극 제어장치 |
-
2020
- 2020-10-06 DE DE102020212567.8A patent/DE102020212567A1/de not_active Withdrawn
-
2021
- 2021-09-09 WO PCT/EP2021/074773 patent/WO2022073711A1/de not_active Ceased
- 2021-09-09 EP EP21777237.5A patent/EP4189217A1/de not_active Withdrawn
- 2021-09-09 US US18/028,530 patent/US20230332507A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020212567A1 (de) | 2022-04-07 |
| WO2022073711A1 (de) | 2022-04-14 |
| US20230332507A1 (en) | 2023-10-19 |
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