WO2015000830A2 - Rotor für eine turbine - Google Patents
Rotor für eine turbine Download PDFInfo
- Publication number
- WO2015000830A2 WO2015000830A2 PCT/EP2014/063812 EP2014063812W WO2015000830A2 WO 2015000830 A2 WO2015000830 A2 WO 2015000830A2 EP 2014063812 W EP2014063812 W EP 2014063812W WO 2015000830 A2 WO2015000830 A2 WO 2015000830A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- tie rod
- turbine
- groove
- coupling element
- Prior art date
Links
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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
- F01D5/066—Connecting means for joining rotor-discs or rotor-elements together, e.g. by a central bolt, by clamps
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/025—Fixing blade carrying members on shafts
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/026—Shaft to shaft connections
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/10—Anti- vibration means
-
- 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
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
-
- 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
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
-
- 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
- F05D2240/20—Rotors
- F05D2240/24—Rotors for turbines
-
- 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
- F05D2240/60—Shafts
-
- 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
- F05D2260/30—Retaining components in desired mutual position
Definitions
- a rotor for a turbine The invention relates to a rotor for a turbine, umfas ⁇ send arrayed a plurality of axially connected by a tie rod rotor components, wherein at one of the rotor components extending in the circumferential direction, open in the axial direction groove is arranged, in the groove is arranged around the tie rod encircling coupling element for supporting the tie rod.
- a turbine is a flow machine, which the internal energy (enthalpy) into a flowing fluid (liquid or gas) into rotational energy and, ultimately, into mechanical energy to drive ⁇ .
- the fluid stream is removed from a part of its internal energy through the possibility ⁇ lichst irrotational laminar flow around the turbine blades, which turns the rotor blades of the turbine.
- the turbo is then binenwelle rotated, the useful power is delivered to an implement coupled to the working machine, such as in egg ⁇ NEN generator.
- Blades and shaft are parts of the movable rotor or rotor of the turbine, which is arranged within a housing.
- blades are mounted on the axle. Blades mounted in a plane each form a paddle wheel or impeller. The blades are slightly curved profiled, similar to an aircraft wing.
- a stator Before each wheel is usually a stator. These Leitschau ⁇ feln protrude from the housing into the flowing medium and put it in a twist. The swirl generated in the stator (kinetic energy) is used in the following impeller to set the shaft on which the impeller blades are mounted in rotation.
- the stator and the impeller together are called stages. Often, several such stages are hintererei ⁇ neder practical.
- the rotor of a turbine is held together in the axial direction usually by means of a tie rod.
- the individual Ro ⁇ tor components such as turbine disks, rotor disks and hollow shafts are lined up and jammed over a tie rod.
- the rotor disks are positively connected to each other by a Hirth serration, so that torque can be transmitted between the individual elements.
- the tie rod is held by supports which are inserted in the various compressor and turbine discs and in the cooling air separation tube.
- supports which are inserted in the various compressor and turbine discs and in the cooling air separation tube.
- annular, conically tapered coupling elements are provided, which engage in a on the respective rotor component introduced, extending in the circumferential direction, and opened in the axial direction groove.
- the coupling elements are heated during assembly, so that they in the groove of the respective Ro ⁇ gate component such.
- B. a wheel disc are connected to a shrinkage. Due to the conical shape, the coupling elements at their smallest diameter surround the tie rod flush and also have a shrinkage there.
- the invention is based on the consideration that a particularly stable support of the tie rod would be possible if the fixation of the coupling element, d. H. of the engaging in the respective rotor member part in the groove would no longer be guaranteed solely by shrinking and thus a non-positive connection to the tie rod itself.
- the coupling element is designed ring-shaped. This results in a particularly easy to manufacture and to be mounted support of the train ⁇ anchor. Due to the fact that the coupling element is arranged on a separate holding element on the tie rod, no zwin ⁇ cones cone shape is more required, but the coupling element can form a ring in a simple cylinder jacket shape.
- the groove in the respective rotor component is advantageously designed to be completely circumferential around the tie rod.
- the coupling element can lie in the groove with a simple annular shape along the entire circumference, which improves the stability ver ⁇ .
- a circumferentially extending, in the axial direction to the first groove open towards the second groove is arranged, in which engages the coupling element to the respective holding element.
- the groove of the holding element lies in the groove in the respective rotor component in the axial direction opposite.
- the annular coupling element thus engages on a first axial side in the groove on the rotor component, on the other axial side in the groove of the holding element.
- a plurality of retaining elements is arranged along the circumference of the tie rod.
- the number of holding elements can be adjusted as needed: The more holding elements are provided, the better the support of the tie rod is. However, a smaller number of Garele ⁇ ments may be advantageous in terms of weight and assembly complexity.
- the respective holding element is screwed to the tie rod
- Shrink fit which firmly stabilizes the tie rod. It is particularly advantageous in this case that during shrinkage, the groove of the holding element is displaced towards the axis of the tie rod and thus creates an offset to the groove of the respective rotor component. In conjunction with the reduced diameter of the coupling element during cooling thus creates a pre ⁇ stress that counteracts the centrifugal force generated during operation and thus allows a particularly stable grip.
- a turbine advantageously comprises such a ⁇ be written rotor.
- the turbine is set as the gas turbine from ⁇ .
- thermal and mechanical ⁇ American pressures are particularly high, so that the design of the support of the tie rod described offers particular advantages in terms of stability.
- a power plant advantageously comprises a derar ⁇ term turbine.
- the advantages achieved by the invention are in particular that by supporting the tie rod not by shrinking the coupling element on the tie rod itself, but by attachment to a separate retaining element on the tie rod a particularly stable and technically easy to implement- avoiding vibrations of the tie rod made ⁇ becomes light.
- an internal cooling air supply is made possible, since passages remain between the retaining elements.
- a tie rod support is realized without the need for additional axial securing components. The risk of a temporary transient loss of contact is eliminated.
- FIG. 2 shows a schematic diagram of a support of the tie rod
- FIG. 3 shows a longitudinal section through the support of the tie rod in the region of the grooves. Identical parts are provided in all figures with the same powerszei ⁇ chen.
- 1 shows a turbine 100, here a gas turbine, in a longitudinal partial section.
- the gas turbine 100 has inside a rotatably mounted around a rotation axis 102 (axial direction) rotor 103, which is also referred to as a turbine runner.
- a turbine 103 Along the rotor 103 follow one another an intake housing 104, a compressor 105, a toroidal combustion chamber 110, in particular ring combustion chamber 106, with a plurality of coaxially arranged burners 107, a turbine 108 and the exhaust ⁇ housing 109.
- the annular combustion chamber 106 communicates with an annular hot gas channel 111th
- turbine stages 112 connected in series form the turbine 108.
- Each turbine stage 112 is formed from two blade rings.
- the Leitschau ⁇ feln 130 are secured to the stator 143, whereas the rotor blades 120 of a row 125 by means of a turbine disk 133.
- Rotor 103 are attached.
- the rotor blades 120 thus form components of the rotor or rotor 103.
- Coupled to the rotor 103 is a generator or a working machine (not shown).
- air 105 is sucked and compressed by the compressor 105 through the intake housing 104.
- the compressed air provided at the turbine-side end of the compressor 105 is fed to the burners 107 and there with a
- the mixture is then burned to form the working fluid 113 in the combustion chamber 110.
- the working medium 113 flows along the hot gas ⁇ channel 111 past the guide vanes 130 and the spin-120 fine.
- the working fluid 113 relaxes momentum, so that the blades 120 drive the rotor 103 and this to him coupled work machine.
- the components exposed to the hot working medium 113 are subject to thermal loads during operation of the gas turbine 100.
- the guide vanes 130 and rotor blades 120 seen in the flow direction of the working medium 113 first Turbine stage 112 is most thermally stressed in addition to the heat shield bricks lining the annular combustor 106. In order to withstand the temperatures prevailing there, they are cooled by means of a coolant.
- the blades 120, 130 may have coatings against corrosion
- thermo barrier coating for example ZrO 2, Y 2 O 4 ZrO 2).
- Each vane 130 has an inner housing 138 of the turbine 108 facing guide vane root (not Darge here provides ⁇ ) and a side opposite the guide-blade root vane root.
- the Leitschaufelkopf faces the rotor 103 and Festge ⁇ sets to a sealing ring 140 of the stator 143.
- Each sealing ring 140 encloses the shaft of the ro tors 103 on the rotor 103, the turbine disks 130 are so ⁇ as other, unspecified components such as hollow shafts via a tie rod 144 is connected. To avoid vibrations of the tie rod 144, this is supported on the rotor components, as shown in the schematic diagram of FIG.
- FIG. 2 shows a longitudinal section (with respect to the axis 102) through the tie rod 144 at its radial outer edge.
- a thread 146 is introduced, which protrudes radially from the tie rod 144.
- a nut 148 is screwed as a holding element.
- Analog Kombina ⁇ functions of thread 146 and nut 148 are arranged along the environmental fangs of the tie rod 144 at regular intervals.
- the nut 148 has a groove 150 which is open in the axial direction Rich ⁇ , namely the turbine disk 130 ⁇ supplied.
- the groove 150 opposite in the turbine disk 130 a further groove 152 is introduced, which rotates around the entire circumference.
- An annular coupling element is arranged in the manner of a tongue and groove connection in the two grooves 150, 152 and thus fixes the tie rod 144 in the radial direction.
- the turbine disk 130 is fixed by the tension of the tie rod 144, the nut 148 via the thread 146.
- Corresponding supports may be provided in different axial regions of the tie rod 144 on each rotor component.
- the nut 148 has a cent ⁇ rale, passing through in the axial direction opening 156.
- cooling air can pass through this opening 156, as a result of which an internal cooling air line for cooling the tie rod 144 is possible.
- FIG. 3 shows a longitudinal section of the area around the coupling element 154 in detail.
- the mother 148 has one more here
- Projection 158 which rests against the turbine disk 130 and realizes a stabilization in the axial direction.
- nut 148 and coupling element 154 are heated. Upon cooling shrink nut 148 and coupling member 154, therefore, so that a movement of Kopplungsele ⁇ ments 154 and the groove takes place in the direction of the axis 102 toward the 150th Characterized is the coupling member 154 on the radi ⁇ alen inside of the groove 152 of the turbine disk 130 and on the radial outer side of the groove 150 of the nut 148. This results in a bias voltage which counteracts the centrifugal force generated during operation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14734797.5A EP3017147B1 (de) | 2013-07-04 | 2014-06-30 | Rotor für eine turbine |
CN201480038127.0A CN105358797A (zh) | 2013-07-04 | 2014-06-30 | 用于涡轮机的转子 |
US14/899,171 US10174618B2 (en) | 2013-07-04 | 2014-06-30 | Rotor for a turbine |
JP2016522557A JP2016524082A (ja) | 2013-07-04 | 2014-06-30 | タービン用のロータ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013213115.1 | 2013-07-04 | ||
DE102013213115.1A DE102013213115A1 (de) | 2013-07-04 | 2013-07-04 | Rotor für eine Turbine |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2015000830A2 true WO2015000830A2 (de) | 2015-01-08 |
WO2015000830A3 WO2015000830A3 (de) | 2015-02-26 |
Family
ID=51062810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/063812 WO2015000830A2 (de) | 2013-07-04 | 2014-06-30 | Rotor für eine turbine |
Country Status (6)
Country | Link |
---|---|
US (1) | US10174618B2 (de) |
EP (1) | EP3017147B1 (de) |
JP (1) | JP2016524082A (de) |
CN (1) | CN105358797A (de) |
DE (1) | DE102013213115A1 (de) |
WO (1) | WO2015000830A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12037926B2 (en) | 2016-02-05 | 2024-07-16 | Siemens Energy Global GmbH & Co. KG | Rotor comprising a rotor component arranged between two rotor discs |
EP3293354B1 (de) * | 2016-09-07 | 2021-04-14 | Ansaldo Energia IP UK Limited | Turbomotor-beschaufelungselement und verfahren zum herstellen solches elements |
KR101967067B1 (ko) * | 2017-10-27 | 2019-04-09 | 두산중공업 주식회사 | 토크튜브 및 이를 포함하는 가스 터빈 |
EP4013950B1 (de) * | 2019-10-18 | 2023-11-08 | Siemens Energy Global GmbH & Co. KG | Rotor mit zwischen zwei rotorscheiben angeordnetem rotorbauteil |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2135088A1 (de) | 1970-10-07 | 1972-04-13 | Carrier Corp | Rotor-Anordnung für Turbomaschinen |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB858763A (en) * | 1957-06-14 | 1961-01-18 | Napier & Son Ltd | Rotors for multi-stage axial flow compressors or turbines |
DE2643886C2 (de) * | 1976-09-29 | 1978-02-09 | Kraftwerk Union AG, 4330 Mülheim | Gasturbinentäufer in Scheibenbauart |
JPS5939903A (ja) * | 1982-08-30 | 1984-03-05 | Toshiba Corp | 蒸気タ−ビンロ−タ |
US5537814A (en) | 1994-09-28 | 1996-07-23 | General Electric Company | High pressure gas generator rotor tie rod system for gas turbine engine |
JP2941698B2 (ja) | 1995-11-10 | 1999-08-25 | 三菱重工業株式会社 | ガスタービンロータ |
JP3636336B2 (ja) | 1996-05-28 | 2005-04-06 | 富士電機システムズ株式会社 | 軸流排気タービン |
DE19821889B4 (de) | 1998-05-15 | 2008-03-27 | Alstom | Verfahren und Vorrichtung zur Durchführung von Reparatur- und/oder Wartungsarbeiten im Innengehäuse einer mehrschaligen Turbomaschine |
JP4007062B2 (ja) | 2002-05-22 | 2007-11-14 | 株式会社日立製作所 | ガスタービン及びガスタービン発電装置 |
US7470115B2 (en) * | 2004-07-13 | 2008-12-30 | Honeywell International Inc. | Outer diameter nut piloting for improved rotor balance |
US7452188B2 (en) * | 2005-09-26 | 2008-11-18 | Pratt & Whitney Canada Corp. | Pre-stretched tie-bolt for use in a gas turbine engine and method |
WO2008012195A1 (de) | 2006-07-24 | 2008-01-31 | Siemens Aktiengesellschaft | Verfahren zum herausdrehen einer ringhälfte eines insgesamt ringförmigen leitapparats aus einer unteren gehäusehälfte einer axial durchströmbaren, stationären strömungsmaschine, montagevorrichtung, montagevorrichtungsverbund und hilfshalbring hierfür |
KR101190941B1 (ko) | 2008-02-28 | 2012-10-12 | 미츠비시 쥬고교 가부시키가이샤 | 가스 터빈 및 가스 터빈의 차실 개방 방법 |
US8677591B2 (en) | 2008-04-28 | 2014-03-25 | General Electric Company | Methods and system for disassembling a machine |
US8650885B2 (en) | 2009-12-22 | 2014-02-18 | United Technologies Corporation | Retaining member for use with gas turbine engine shaft and method of assembly |
ITMI20101918A1 (it) | 2010-10-20 | 2012-04-21 | Ansaldo Energia Spa | Impianto a turbina a gas per la produzione di energia elettrica, provvisto di un'apparecchiatura per il monitoraggio di parti rotanti |
EP2565387A1 (de) * | 2011-08-29 | 2013-03-06 | Siemens Aktiengesellschaft | Strömungsmaschine mit einer berührungslosen Temperaturmesseinrichtung |
-
2013
- 2013-07-04 DE DE102013213115.1A patent/DE102013213115A1/de not_active Ceased
-
2014
- 2014-06-30 CN CN201480038127.0A patent/CN105358797A/zh active Pending
- 2014-06-30 WO PCT/EP2014/063812 patent/WO2015000830A2/de active Application Filing
- 2014-06-30 EP EP14734797.5A patent/EP3017147B1/de not_active Not-in-force
- 2014-06-30 US US14/899,171 patent/US10174618B2/en not_active Expired - Fee Related
- 2014-06-30 JP JP2016522557A patent/JP2016524082A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2135088A1 (de) | 1970-10-07 | 1972-04-13 | Carrier Corp | Rotor-Anordnung für Turbomaschinen |
Also Published As
Publication number | Publication date |
---|---|
US10174618B2 (en) | 2019-01-08 |
US20160130948A1 (en) | 2016-05-12 |
EP3017147B1 (de) | 2017-04-12 |
DE102013213115A1 (de) | 2015-01-22 |
CN105358797A (zh) | 2016-02-24 |
WO2015000830A3 (de) | 2015-02-26 |
JP2016524082A (ja) | 2016-08-12 |
EP3017147A2 (de) | 2016-05-11 |
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