EP1709300A1 - Vorrichtung zum verstellen von leitschaufeln - Google Patents
Vorrichtung zum verstellen von leitschaufelnInfo
- Publication number
- EP1709300A1 EP1709300A1 EP05706718A EP05706718A EP1709300A1 EP 1709300 A1 EP1709300 A1 EP 1709300A1 EP 05706718 A EP05706718 A EP 05706718A EP 05706718 A EP05706718 A EP 05706718A EP 1709300 A1 EP1709300 A1 EP 1709300A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- generator
- rotor
- torque motor
- stator
- adjusting
- 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.)
- Granted
Links
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002184 metal Substances 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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
- F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
-
- 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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
- F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
- F01D17/24—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical electrical
-
- 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
- F05D2260/404—Transmission of power through magnetic drive coupling
Definitions
- the invention relates to a device for adjusting guide vanes according to the preamble of patent claim 1.
- Gas turbines in particular aircraft engines, consist of several assemblies, for example a fan, a combustion chamber, preferably several compressors and several turbines.
- a plurality of stationary guide vanes and a plurality of rotating rotor blades are arranged in a turbine and in a compressor of the gas turbine.
- the guide vanes are designed to be stationary relative to a housing of the gas turbine.
- the blades are assigned to at least one rotor and rotate with respect to the stationary guide vanes and the stationary housing. If the turbine or the compressor has several stages, then guide vanes and rotor blades are alternately arranged one behind the other in the axial direction or in the flow direction, with at an axial position, i.e. along the circumference of the rotor or the housing, a plurality of rotor blades or guide vanes are also arranged, which form so-called guide blade rings or rotor blade rings.
- the fixed guide blades of a compressor or a turbine can be designed to be adjustable or pivotable about an axis.
- DE 39 13 102 C1 discloses a device for adjusting guide vanes, in which guide vanes of a guide vane ring outside a housing of the gas turbine are pivotally connected to an adjusting ring via adjusting levers, the or each adjusting lever having a first end on the adjusting ring and with engages a second end opposite the first end on one end of a shaft of the respective guide vane.
- the guide vanes are adjusted by hydraulic means, preferably by hydraulic pistons.
- the present invention is based on the problem of creating a novel device for adjusting guide vanes.
- This problem is solved in that the aforementioned device for adjusting guide vanes is developed by the features of the characterizing part of patent claim 1.
- the rotor is assigned a rotor of a torque motor, a stator of the torque motor concentrically enclosing the rotor of the torque motor.
- the adjusting ring is preferably designed as a rotor of the torque motor.
- the electrical energy required to operate the torque motor is provided by a generator of the gas turbine, the generator having a stator and a rotor, and the rotor of the generator being designed as a free-running generator turbine that is driven by a gas flow rotates relative to the stator of the generator and thus generates electrical energy from the kinetic energy of the gas flow.
- the stator of the torque motor and the stator of the generator are preferably mounted on a common holder, the stator of the generator concentrically enclosing the stator of the torque motor, both of which are made from a sheet metal cut. Accordingly, the stator of the torque motor encloses the rotor of the torque motor, the stator of the generator encloses the stator of the torque motor and thus also the rotor of the torque motor, and the rotor of the generator encloses the stator of the generator and thus also the stator and the rotor of the torque motor.
- Fig. 1 shows a schematic cross section through a gas turbine according to the invention in the region of a high pressure compressor.
- FIG. 1 shows a partial cross section through a high-pressure compressor 10 of a gas turbine, namely an aircraft engine.
- 1 shows a flow channel 11 of the high-pressure compressor 10, with guide vanes 12 and rotating rotor blades 13 being positioned one behind the other in the flow channel 11 in the axial direction or in the flow direction thereof.
- Guide vanes 12 arranged at an axial position and distributed over the circumference of the high-pressure compressor 10 form guide vane rings
- rotor vanes 13 arranged at an axial position form rotor vane rings.
- Fig. 1 only a guide vane ring consisting of guide vanes 12 and a moving blade ring consisting of moving blades 13 is shown. It goes without saying that a plurality of such guide vane rings and rotor blade rings can be arranged alternately one behind the other in the direction of flow through the high-pressure compressor 11.
- the flow channel 11 of the high pressure compressor is delimited by a housing 14.
- the fixed guide vanes 12 have a shaft 15 at a radially outer end, with which they penetrate the housing 14.
- An adjusting lever 16 engages on the shaft 15 of each adjustable guide vane 12, the adjusting lever 16 also being connected to an adjusting ring 17. All adjusting levers 16 of the guide vanes 12 of a guide vane ring are connected to the same adjusting ring 17. By turning the adjusting ring 17, all the guide vanes 12 of a guide vane ring can accordingly be adjusted or pivoted together.
- the rotor 17 is assigned a rotor of a torque motor, the collar 17 preferably being designed as a rotor of the torque motor.
- a stator 18 of the torque motor concentrically surrounds the adjusting ring 17 designed as a rotor of the torque motor, namely radially on the outside.
- the electrical energy required to operate the torque motor is provided by a generator 19 of the gas turbine.
- the generator 19 of the gas turbine like the torque motor, has a rotor 20 and a stator 21.
- the rotor 20 of the generator 19 is designed as a free-running generator turbine, which rotates driven by a gas flow relative to the stator 21 of the generator 19 and thus from the kinetic energy the gas flow generates electrical energy.
- the rotor 20 of the generator 19 is preferably driven by a gas flow from a fan or fan module of the gas turbine, not shown.
- the generator 19 is positioned downstream of the fan or fan module, a generator module having the generator being detachably connected to the fan module at the downstream end of the fan module.
- the generator 19 or the rotor 20 of the generator 19 is preferably driven by a bypass gas flow from the fan or fan module and accordingly generates electrical energy from this bypass gas flow.
- the rotor 20 of the generator 19, designed as a free-running generator turbine, has a plurality of rotating blades 22, the blades 22 being connected at a radially inner end via a platform 23 to an outer bearing ring 26 of a bearing 27.
- Pole pieces 24 are assigned to the radially inner ends of the blades 22 or the platform 23.
- the runner encloses
- the stator 21 comprises windings and magnetic circuits in order to ultimately generate electrical energy from the movement or rotation of the rotor 20 of the generator 19.
- the electrical energy generated in the stator 21 of the generator 19 is at least partially supplied to the stator 18 of the torque motor and is used there to move or drive the adjusting ring 17 designed as a rotor of the torque motor.
- stator 21 of the generator 19 and the stator 18 of the torque motor are mounted on a common holder 28.
- stator 18 of the torque motor encloses the rotor of the torque motor; the stator 21 of the generator 19 encloses the stator 18 of the torque motor and thus also the rotor of the torque motor; the rotor 20 of the generator 19 encloses the stator 21 of the generator 19 and thus also the stator 18 and the rotor of the torque motor.
- the rotor of the torque motor is the adjusting ring 17.
- the stator 18 of the torque motor in turn comprises windings and the adjusting ring 17 is assigned magnetic elements 25. Several such magnetic elements 25 are positioned distributed over the circumference of the adjusting ring 17, the distance between two adjacent magnetic elements 25 being dimensioned such that the adjusting levers 16 leading to the guide vanes 12 can be fastened between them.
- FIG. 1 shows only one guide vane ring with adjustable guide vanes 12.
- the guide vanes of several guide vane rings can also be adjusted as described above.
- the adjustable guide vanes of each guide vane ring can then be adjusted by means of an adjusting ring, a rotor of a torque motor preferably being assigned to each adjusting ring of each guide vane ring.
- the present invention proposes a completely new concept for adjusting guide vanes on a gas turbine.
- the device according to the invention for adjusting guide vanes eliminates the hydraulic pistons required according to the prior art for adjusting the adjusting ring.
- the invention it is possible to use the electrical energy generated by a generator for the electrical adjustment of the guide vanes and with only a small additional weight for the gas turbine.
- the aid of the device according to the invention it is possible to adjust the guide vanes particularly quickly since there is no need for conventional electromotive drives with gears.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004004976A DE102004004976A1 (de) | 2004-01-31 | 2004-01-31 | Vorrichtung zum Verstellen von Leitschaufeln |
| PCT/DE2005/000130 WO2005073520A1 (de) | 2004-01-31 | 2005-01-28 | Vorrichtung zum verstellen von leitschaufeln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1709300A1 true EP1709300A1 (de) | 2006-10-11 |
| EP1709300B1 EP1709300B1 (de) | 2012-09-12 |
Family
ID=34801394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05706718A Expired - Lifetime EP1709300B1 (de) | 2004-01-31 | 2005-01-28 | Vorrichtung zum verstellen von leitschaufeln |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7850422B2 (de) |
| EP (1) | EP1709300B1 (de) |
| DE (1) | DE102004004976A1 (de) |
| WO (1) | WO2005073520A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006025831B4 (de) * | 2006-06-02 | 2013-10-31 | Rovema Gmbh | Vorrichtung zum Verschweißen von Kunststoff zu Verpackungszwecken (Torquemotor) |
| FR2915523A1 (fr) * | 2007-04-27 | 2008-10-31 | Snecma Sa | Dispositif de production d'energie electrique dans un moteur a turbine a gaz a double corps |
| DE102018210085A1 (de) * | 2018-06-21 | 2019-12-24 | Continental Automotive Gmbh | Verdichter mit direkt angetriebener variabler Irisblende und Aufladevorrichtung |
| US12270309B2 (en) * | 2022-10-21 | 2025-04-08 | Rolls-Royce North American Technologies Inc. | Variable stator vane assembly with magnetic actuation rotor for gas turbine engines |
| US20240410293A1 (en) * | 2023-03-24 | 2024-12-12 | Rolls-Royce North American Technologies, Inc. | Electric Generator Behind Fan in Turbine Engine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL182289B (nl) | 1953-10-09 | Alusuisse | Filter van schuimkeramiek en werkwijze voor het vervaardigen daarvan. | |
| US2823700A (en) * | 1954-11-19 | 1958-02-18 | Westinghouse Electric Corp | Fluid flow control apparatus |
| US3449914A (en) * | 1967-12-21 | 1969-06-17 | United Aircraft Corp | Variable flow turbofan engine |
| GB1499531A (en) | 1976-05-24 | 1978-02-01 | Secr Defence | Apparatus for varying the incidence of turbomachinery stator blades |
| US4718819A (en) * | 1983-02-25 | 1988-01-12 | Teledyne Industries, Inc. | Variable geometry device for turbine compressor outlet |
| JPS60169442A (ja) * | 1984-02-10 | 1985-09-02 | Mitsubishi Chem Ind Ltd | 桂皮酸エステル類の製造方法 |
| DE3913102C1 (de) | 1989-04-21 | 1990-05-31 | Mtu Muenchen Gmbh | |
| US5205712A (en) | 1991-05-13 | 1993-04-27 | Allied-Signal Inc. | Variable pitch fan gas turbine engine |
| GB2372157B (en) * | 2001-02-09 | 2005-07-06 | Rolls Royce Plc | A gas turbine with an electrical machine |
| US6873085B2 (en) * | 2001-05-16 | 2005-03-29 | G & G Technology, Inc. | Brushless motor |
-
2004
- 2004-01-31 DE DE102004004976A patent/DE102004004976A1/de not_active Withdrawn
-
2005
- 2005-01-28 EP EP05706718A patent/EP1709300B1/de not_active Expired - Lifetime
- 2005-01-28 WO PCT/DE2005/000130 patent/WO2005073520A1/de not_active Ceased
- 2005-01-28 US US10/588,139 patent/US7850422B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005073520A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1709300B1 (de) | 2012-09-12 |
| WO2005073520A1 (de) | 2005-08-11 |
| DE102004004976A1 (de) | 2005-08-18 |
| US7850422B2 (en) | 2010-12-14 |
| US20070280821A1 (en) | 2007-12-06 |
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