WO2013093337A1 - Redresseur de compresseur pour turbomachine - Google Patents
Redresseur de compresseur pour turbomachine Download PDFInfo
- Publication number
- WO2013093337A1 WO2013093337A1 PCT/FR2012/052991 FR2012052991W WO2013093337A1 WO 2013093337 A1 WO2013093337 A1 WO 2013093337A1 FR 2012052991 W FR2012052991 W FR 2012052991W WO 2013093337 A1 WO2013093337 A1 WO 2013093337A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blades
- rectifier
- sectors
- outer shell
- flange
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
-
- 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
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/246—Fastening of diaphragms or stator-rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
-
- 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
- the present invention relates to compressors particularly high-pressure compressors for turbomachines, such as aircraft turbojets.
- the turbojet compressors comprise a plurality of successive stages aligned along the longitudinal axis of the engine and alternately composed of mobile stages, forming the rotor of the compressor and whose vanes accelerate the gas flow by deviating it with respect to said axis, and fixed stages, forming the stator and whose vanes partially transform the speed of the flow pressure and straighten it in the direction of the next mobile stage.
- the last stage (s) of the stator of the high pressure compressor are sectorized rectifiers which form, after successive assembly of the sectors one after the other in an outer receiving casing, two concentric rings respectively external and internal, between which are arranged the blades of the vane traversed by the then primary gas flow in a double-flow turbine engine.
- the outer shell is provided with a fastening means such as peripheral fastening edges (of angled shape) front and rear in the direction of flow, for connection with the outer casing of the stator of the compressor, while the ferrule internal door externally abradable devices in connection with sealing devices of the rotor concerned.
- a fastening means such as peripheral fastening edges (of angled shape) front and rear in the direction of flow, for connection with the outer casing of the stator of the compressor, while the ferrule internal door externally abradable devices in connection with sealing devices of the rotor concerned.
- the rectifiers are parts working both in static (aerodynamic forces and mechanical forces passing through the outer casing) and in dynamics (for example, important vibration phenomena during certain transient phases of engine operation), so that they are previously dimensioned from a so-called Haig curve which makes it possible to determine their mechanical strength and fatigue strength.
- Haig curve which makes it possible to determine their mechanical strength and fatigue strength.
- the sectorized turbomachine compressor rectifier is of the type comprising assembled sectors forming two concentric outer and inner shrouds, between which are arranged blades with their leading and trailing edges close respectively to the front and rear transverse faces of the ferrules according to the gaseous flow flowing in the compressor, and the outer shell of which is provided externally with a fastening means with an outer casing for receiving said sectors.
- said attachment means comprises the features according to claim 1.
- the static stress namely the aerodynamic forces and crankcase forces
- the static stress is no longer concentrated and located in the rear or downstream part of the outer shell, but at the blade level, and is therefore dissociated from the dynamic stress always located at the rear portion of the outer shell of the rectifier.
- the rear part of the outer shell is less stressed since it is thus released from the static stress, and is more subject than the dynamic constraint. Therefore, this rear portion can work with a maximum permissible dynamic stress, increased and, therefore, higher vibration regimes without risk of degradation thereof. In this way, the vibratory capacity of the rectifier, that is to say its ability to withstand a given aerodynamic excitation, is improved.
- Said attachment means to the outer casing comprises, with respect to the direction of flow through the blades, a front peripheral edge located at the upstream transverse face of the outer ring of said sectors, and a rear peripheral edge offset from the downstream transverse face of the outer shell and located, in projection, between the leading and trailing edges of the blades.
- said offset rear peripheral rim is situated, in projection, substantially in the middle of the blades, between their leading and trailing edges.
- said means for attaching the outer casing comprises an annular flange provided on the periphery of the outer shell, and located in projection between the leading and trailing edges of the blades.
- said attachment flange is located, in projection, in the middle of the leading and trailing edges of the blades, resulting in the same advantage as previously in terms of reducing the static stress by increasing the volume of material.
- said rear peripheral flange or said flange may extend continuously or discontinuously over all sectors.
- FIG. 1 represents, in schematic longitudinal section, part of a high pressure compressor of a turbomachine, with a fixed stator stator stage according to the invention followed by a rotor stage.
- Figure 2 is a partial perspective view of the rectifier of Figure 1, with the axially offset rear hooking flange.
- FIG. 3 is a plan view of the rectifier of FIG. 2.
- Figure 4 is a perspective view of another embodiment of the rectifier according to the invention.
- the compressor part 1 illustrated in FIG. 1 is that of a high-pressure compressor of an A-axis turbine engine for an aircraft, and it shows a stator stage 2 forming the stationary rectifier 3, downstream of which is a stage rotor 4 of this compressor.
- the stator rectifier 3 is sectorized, that is to say composed of several sectors 5 successively mounted one after the other in an annular outer casing 6 for receiving and maintaining in position these sectors by a fastening means or attachment 7 to thereby form the rectifier as a whole.
- Each sector 5 of the rectifier comprises an outer shell 8 with a cylindrical wall 9 and an inner shell 10 also with a cylindrical wall 11, which are concentric with respect to the axis A and between which are provided blades 12 traversed by the flow of the primary air flow F issued upstream of the blower and directed downstream to the combustion chamber.
- the distance separating the axis A from the inner ring 10 of the rectifier has been decreased.
- FIG. 1 With regard to the inner shell, FIG.
- the blades 1 1 shows that the outside thereof is covered in known manner with an abradable coating 25 against which a multi-lip seal 26 provided on the rotor stage 4.
- the heads 13 and the feet 14 of the blades 1 1 are fixed, for example by brazing, respectively to the walls 9 and 11 of the outer shell 8 and the inner shell 10.
- the blades 12 extend over almost the entire width of the shells along the axis A, so that the leading edge 15 and the trailing edge 16 of the blades according to the flow F are close to the transverse faces 17 and 18 end, respectively front and rear (or upstream or downstream), walls 9, 1 1 of the cylindrical shells.
- the fastening means 7 On the outer periphery of the side wall 9 of the outer shell 8 is also provided the fastening means 7 with the outer casing 6 and this means comprises, in this example, a sliding-slider mounting.
- the fastening means 7 is defined, in this first embodiment of the rectifier, by two bent hooking edges respectively before or upstream 19 and back or downstream 20 in the direction of the flow F, forming a slider, and which as shown diagrammatically in FIG. 1, engage in receiving and holding slots 21 forming a slideway of the outer casing 6 which surrounds sectors 5 of the rectifier 1.
- FIGS. 1 to 3 show that the front hooking flange 19 is located substantially vertically above the front transverse face 17 of the outer shell 8, whereas the rear hooking flange 20 is on the other hand according to the invention, at a distance from the rear transverse face 18 of the ferrule, substantially in the middle of the cylindrical side wall 9 and, therefore, vertically above the blades 12.
- this rear flange 20 is arranged to be located in projection, in the middle of the blades 12, where the latter are thicker, as shown in Figure 3.
- FIG. 4 Another embodiment of the sectorized rectifier 3 according to the invention is shown with reference to FIG. 4.
- this perspective view of a sector 5 of the rectifier there are concentric ferrules, respectively external 8 and internal 10, between which the blades are arranged. 12.
- the fastening means 7 On the outside of the outer shell 8 is provided the fastening means 7 to the outer casing not shown in this figure.
- This attachment means 7, unlike the previous embodiment, comprises a single annular flange 23 projecting radially from the side wall 9 of the cylindrical shell 8 and which is regularly provided at the periphery with fixing holes 24 to the receiving housing. for the passage of bolts or the like.
- the flange 23 is disposed between the upstream 17 and downstream transverse faces 18 of the shell wall and, in particular, between the leading and trailing edges 15 of the blades while being, in projection, substantially located at the their widest thickness.
- Such a central flange embodiment 23 provides results similar to the previous embodiment with two hooking flanges 19, 20.
- the static stress generated by the different forces is located at the central flange 23 of the shell and the thick parts of the flanges. blades and is therefore separated from the maximum dynamic stress which occurs in the rear portion 22 (then released from the static stress) of the wall 10 of the shell 8. Consequently, the maximum allowable dynamic stress can be increased without harming the integrity of the rectifier 3, allowing higher vibratory levels on the motor.
- front and rear flanges 20 and the flange 23 may be made continuously or discontinuously on the periphery of the side wall 11 of said outer shell 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12816729.3A EP2795068B1 (fr) | 2011-12-19 | 2012-12-19 | Redresseur de compresseur pour turbomachine |
CA2858797A CA2858797C (fr) | 2011-12-19 | 2012-12-19 | Redresseur de compresseur pour turbomachine |
CN201280061542.9A CN104011333B (zh) | 2011-12-19 | 2012-12-19 | 涡轮机组压气机导向叶片组件 |
RU2014125064A RU2631585C2 (ru) | 2011-12-19 | 2012-12-19 | Направляющий аппарат компрессора для турбомашины |
US14/364,475 US9702259B2 (en) | 2011-12-19 | 2012-12-19 | Turbomachine compressor guide vanes assembly |
BR112014014612-8A BR112014014612B1 (pt) | 2011-12-19 | 2012-12-19 | Montagem de palhetas guias de compressor para turbomáquina |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1161911 | 2011-12-19 | ||
FR1161911A FR2984428B1 (fr) | 2011-12-19 | 2011-12-19 | Redresseur de compresseur pour turbomachine. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013093337A1 true WO2013093337A1 (fr) | 2013-06-27 |
Family
ID=47599074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2012/052991 WO2013093337A1 (fr) | 2011-12-19 | 2012-12-19 | Redresseur de compresseur pour turbomachine |
Country Status (8)
Country | Link |
---|---|
US (1) | US9702259B2 (fr) |
EP (1) | EP2795068B1 (fr) |
CN (1) | CN104011333B (fr) |
BR (1) | BR112014014612B1 (fr) |
CA (1) | CA2858797C (fr) |
FR (1) | FR2984428B1 (fr) |
RU (1) | RU2631585C2 (fr) |
WO (1) | WO2013093337A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11078800B2 (en) * | 2016-11-14 | 2021-08-03 | Man Energy Solutions Se | Turbomachine rotor and method for producing same |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3097270B1 (fr) * | 2014-01-24 | 2020-07-29 | United Technologies Corporation | Carter interne de moteur à turbine à gaz à ailettes non intégrales |
FR3032495B1 (fr) * | 2015-02-09 | 2017-01-13 | Snecma | Ensemble de redressement a performances aerodynamiques optimisees |
WO2017158637A1 (fr) * | 2016-03-15 | 2017-09-21 | 株式会社 東芝 | Turbine et aube de stator de turbine |
CN109184808B (zh) * | 2018-10-29 | 2021-08-06 | 中国航发湖南动力机械研究所 | 分段式涡轮导向器连接结构、安装方法及燃气涡轮发动机 |
PL431184A1 (pl) * | 2019-09-17 | 2021-03-22 | General Electric Company Polska Spółka Z Ograniczoną Odpowiedzialnością | Zespół silnika turbinowego |
CN111561481A (zh) * | 2020-06-05 | 2020-08-21 | 中国航发沈阳发动机研究所 | 一种静子机匣结构 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2084261A (en) * | 1980-09-30 | 1982-04-07 | Rolls Royce | Mounting compressor stator blades |
WO1996028642A1 (fr) * | 1995-03-15 | 1996-09-19 | United Technologies Corporation | Ensemble de joint d'etancheite a l'air resistant a l'usure pour turbine a gaz |
EP1318276A2 (fr) * | 2001-12-05 | 2003-06-11 | Rolls-Royce Deutschland Ltd & Co KG | Raccord à baionnette pour des sections d'un carter de compresseur à haute pression d'une turbine à gaz |
GB2388875A (en) * | 2002-03-23 | 2003-11-26 | Rolls Royce Plc | Arrangements for guiding bleed air in a gas turbine engine |
EP1811131A2 (fr) * | 2006-01-24 | 2007-07-25 | Snecma | Ensemble de redresseurs fixes sectorise pour un compresseur de turbomachine |
FR2945331A1 (fr) | 2009-05-07 | 2010-11-12 | Snecma | Virole pour stator de turbomoteur d'aeronef a fentes de dechargement mecanique d'aubes. |
DE102009037620A1 (de) * | 2009-08-14 | 2011-02-17 | Mtu Aero Engines Gmbh | Strömungsmaschine |
WO2011157956A1 (fr) * | 2010-06-18 | 2011-12-22 | Snecma | Secteur angulaire de redresseur pour compresseur de turbomachine, redresseur de turbomachine et turbomachine comprenant un tel secteur |
Family Cites Families (9)
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BE529252A (fr) * | 1953-06-01 | |||
SU141041A1 (ru) * | 1961-02-20 | 1961-11-30 | А.Я. Ершов | Гибкий бандаж, демпфирующий вибрацию турбинных лопаток |
US3262677A (en) * | 1963-11-27 | 1966-07-26 | Gen Electric | Stator assembly |
US3302926A (en) * | 1965-12-06 | 1967-02-07 | Gen Electric | Segmented nozzle diaphragm for high temperature turbine |
US4889470A (en) * | 1988-08-01 | 1989-12-26 | Westinghouse Electric Corp. | Compressor diaphragm assembly |
US5333995A (en) * | 1993-08-09 | 1994-08-02 | General Electric Company | Wear shim for a turbine engine |
US5622475A (en) * | 1994-08-30 | 1997-04-22 | General Electric Company | Double rabbet rotor blade retention assembly |
US6425738B1 (en) * | 2000-05-11 | 2002-07-30 | General Electric Company | Accordion nozzle |
FR2829176B1 (fr) * | 2001-08-30 | 2005-06-24 | Snecma Moteurs | Carter de stator de turbomachine |
-
2011
- 2011-12-19 FR FR1161911A patent/FR2984428B1/fr active Active
-
2012
- 2012-12-19 CA CA2858797A patent/CA2858797C/fr active Active
- 2012-12-19 BR BR112014014612-8A patent/BR112014014612B1/pt active IP Right Grant
- 2012-12-19 WO PCT/FR2012/052991 patent/WO2013093337A1/fr active Application Filing
- 2012-12-19 US US14/364,475 patent/US9702259B2/en active Active
- 2012-12-19 CN CN201280061542.9A patent/CN104011333B/zh active Active
- 2012-12-19 EP EP12816729.3A patent/EP2795068B1/fr active Active
- 2012-12-19 RU RU2014125064A patent/RU2631585C2/ru active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2084261A (en) * | 1980-09-30 | 1982-04-07 | Rolls Royce | Mounting compressor stator blades |
WO1996028642A1 (fr) * | 1995-03-15 | 1996-09-19 | United Technologies Corporation | Ensemble de joint d'etancheite a l'air resistant a l'usure pour turbine a gaz |
EP1318276A2 (fr) * | 2001-12-05 | 2003-06-11 | Rolls-Royce Deutschland Ltd & Co KG | Raccord à baionnette pour des sections d'un carter de compresseur à haute pression d'une turbine à gaz |
GB2388875A (en) * | 2002-03-23 | 2003-11-26 | Rolls Royce Plc | Arrangements for guiding bleed air in a gas turbine engine |
EP1811131A2 (fr) * | 2006-01-24 | 2007-07-25 | Snecma | Ensemble de redresseurs fixes sectorise pour un compresseur de turbomachine |
FR2945331A1 (fr) | 2009-05-07 | 2010-11-12 | Snecma | Virole pour stator de turbomoteur d'aeronef a fentes de dechargement mecanique d'aubes. |
DE102009037620A1 (de) * | 2009-08-14 | 2011-02-17 | Mtu Aero Engines Gmbh | Strömungsmaschine |
WO2011157956A1 (fr) * | 2010-06-18 | 2011-12-22 | Snecma | Secteur angulaire de redresseur pour compresseur de turbomachine, redresseur de turbomachine et turbomachine comprenant un tel secteur |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11078800B2 (en) * | 2016-11-14 | 2021-08-03 | Man Energy Solutions Se | Turbomachine rotor and method for producing same |
Also Published As
Publication number | Publication date |
---|---|
CN104011333B (zh) | 2016-03-02 |
US20140301841A1 (en) | 2014-10-09 |
EP2795068B1 (fr) | 2021-07-14 |
EP2795068A1 (fr) | 2014-10-29 |
RU2014125064A (ru) | 2016-02-10 |
CA2858797A1 (fr) | 2013-06-27 |
CA2858797C (fr) | 2020-03-10 |
RU2631585C2 (ru) | 2017-09-25 |
US9702259B2 (en) | 2017-07-11 |
CN104011333A (zh) | 2014-08-27 |
BR112014014612A2 (pt) | 2017-06-13 |
BR112014014612B1 (pt) | 2021-11-09 |
BR112014014612A8 (pt) | 2017-06-27 |
FR2984428B1 (fr) | 2018-12-07 |
FR2984428A1 (fr) | 2013-06-21 |
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