WO2015110751A1 - Disque de rotor a dispositif de prélèvement d'air centripète, compresseur comportant ledit disque et turbomachine avec un tel compresseur - Google Patents
Disque de rotor a dispositif de prélèvement d'air centripète, compresseur comportant ledit disque et turbomachine avec un tel compresseur Download PDFInfo
- Publication number
- WO2015110751A1 WO2015110751A1 PCT/FR2015/050135 FR2015050135W WO2015110751A1 WO 2015110751 A1 WO2015110751 A1 WO 2015110751A1 FR 2015050135 W FR2015050135 W FR 2015050135W WO 2015110751 A1 WO2015110751 A1 WO 2015110751A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- fabric
- disk
- compressor
- sampling device
- 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.)
- Ceased
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/16—Control of working fluid flow
- F02C9/18—Control of working fluid flow by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages
-
- 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
- F01D5/08—Heating, heat-insulating or cooling means
-
- 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
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
- F01D5/082—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades on the side of the rotor disc
-
- 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
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
- F01D5/084—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades the fluid circulating at the periphery of a multistage rotor, e.g. of drum type
-
- 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
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/085—Heating, heat-insulating or cooling means cooling fluid circulating inside 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
- 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
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/085—Heating, heat-insulating or cooling means cooling fluid circulating inside the rotor
- F01D5/087—Heating, heat-insulating or cooling means cooling fluid circulating inside the rotor in the radial passages of the rotor disc
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/009—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by bleeding, by passing or recycling fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
-
- 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
- F04D29/545—Ducts
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
-
- 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
- F01D25/08—Cooling; Heating; Heat-insulation
-
- 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
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
-
- 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
- F05D2220/323—Application in turbines in gas turbines for aircraft propulsion, e.g. jet engines
-
- 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
- F05D2240/35—Combustors or associated equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Definitions
- the present invention relates to a rotor disk with a centripetal air sampling device and, more particularly, though not exclusively, to the arrangement of the centripetal air sampling device in axial compressor discs of turbomachines (turboprops and turbojets). ) of small size.
- the axial compressors in which circulates the air stream entering the turbomachine, comprise a plurality of coaxial and alternating stages of rotor disks and paddle stator, the latter being traversed by the air stream to be compressed. circulating from upstream to downstream of the engine to go to the combustion chamber thereof.
- FIG. 1 A schematic representation of an axial compressor 2 of turbomachine 1 A axis is illustrated with reference to Figure 1 with its magnifying glass L, the stator vanes having been removed.
- the rotor disks 3 each comprise an annular radial web (or web) 4 with, at its inner periphery, a central bore 5 traversed by the turbine shaft 6 of the turbomachine, for example, a rim 7 terminating the outer periphery of the rotor. 4, and the corresponding blade 8 attached to the rim 7.
- the latter are made integral by bolt-type connection means 10A fixing, in this embodiment, flanges 1 1 which terminate cylindrical side walls 12 of the disks, to the webs 4 of adjacent disks.
- the assembly of the walls 12 thus assembled forms an internal continuous wall delimiting the flow of the air stream 13.
- centripetal air 15 which serves to provide ventilation or cooling of certain parts of the turbomachine 1 such as, for example, the ventilation of the high-pressure turbine, the ventilation of the bores of the compressor discs high pressure, the pressurization of the lubrication chambers, the ventilation of the low pressure turbine, etc. This ventilation is advantageously from the internal air flow F of the motor circulating in the vein 13.
- the device 15 comprises tubes 16 communicating, at their inlets 17, with the air stream 13 through at least one orifice 18 provided in the cylindrical lateral wall 12 of the downstream disc 3B, and at their outlets 19 located in the vicinity of the central bores of the discs, with the turbine shaft 6 to be ventilated.
- the tubes 16 are arranged substantially radially and are carried by a cylindrical support 23 of the device, which is integral with the disks.
- the air sampling device 15 can be arranged relatively easily in the chosen interdisc cavity, and linked to the disks of the compressor, bolts 10A being thus used as connecting means 10 of the two consecutive bladed disks.
- connection means 10 between the consecutive disks toothed or gear-coupled connection means (referred to in English as "curvic coupling" and described for example in FR-2952138).
- curvic coupling referred to in English as "curvic coupling" and described for example in FR-2952138.
- tooth connection means 10 make it possible to reduce the axial space requirement compared with bolt connection means 10A and flanges, since the cylindrical walls 12 of the disks are directly engaged by conical teeth 10B and 10C, as shown in FIG. 2, while not weakening not the discs. Indeed, it weakens the latter when pierced in order to fix the flanges so that thicker discs are needed, which weighs on other parameters.
- a generally conical toothing 10B terminates the transverse free end of the cylindrical lateral wall 12 of a disc and meshes with a complementary toothing 10C terminating the transverse free end of the side wall facing the disc to be associated.
- the air sampling device 15 comprises a cylindrical support 23 which is previously mounted on an annular flange 24 perpendicularly projecting from the radial web 4 of the upstream disk 3A, being located near the central bore 5.
- the support 23 is fixed to the flange 24 by bolts 25.
- the radial air supply tubes 16 are then mounted through facing holes 26, 27 provided in the support 23 and the flange 24 to radially open in the annular cavity 14 of the disks 3A, 3B between the webs 4 and coming, by their inputs 17, near the side wall 12 of the disks and, by their outputs 19, near the central bores opposite the shaft of turbine to ventilate.
- a locking means 28 maintains the air sampling tubes 16 in the support 23 and the flange 24.
- an annular ring or flange 30 perpendicularly projecting from the radial fabric 4 and in which engages the support 23 for purposes of centering the latter.
- the sampling device is attached to one of the disks and centered on the other disk.
- the centripetal air sampling device tends to generate stresses in the upstream rotor disk to which it is attached. so that over-stresses can appear in the disk, which is undesirable.
- the present invention aims to overcome the above drawbacks and concerns a compressor rotor disk, the design of which makes it possible to easily mount the centripetal air sampling device, to improve the mechanical strength of the disk, to reduce the risks of leakage and machining diametrically teeth curvic connections of the two disks enclosing the sampling device.
- the rotor disk in particular for a compressor, comprises, with respect to the axis of rotation of the disk:
- a centripetal radial air sampling device comprising a cylindrical support and at least one air supply tube whose inlet is turned towards the air supply orifice and whose outlet is turned towards the boring of the fabric, and an internal radial flange from the cylindrical side wall, the cylindrical support of the device being fixed to said inner radial flange, and a crown from the fabric, the cylindrical support being centered on the crown.
- the rotor disc is remarkable in that locking means are provided between the cylindrical support of the air sampling device and the centering ring of the radial web.
- the support of the sampling device thus adjusted and locked, thus remains in contact with the ring gear reducing the risk of leakage, which avoids over-dimensioning the air bleed and maintain engine performance .
- the device instead of coming to clamp the air sampling device on one of the two consecutive rotor disks and to center on the other rotor disk, the device is fixed and applies only on only one of the rotor discs, which on the one hand facilitates the assembly operations (and disassembly) of said device and the intervention on inaccessible parts and, on the other hand, to stiffen the disk assembly. device by distributing the best efforts passing through them. Indeed, the centrifugal force created by the device is taken up by its fixing and its centering on the same disk.
- the air sampling device is reported, in full, in the internal space defined by the fabric and the side wall of the disc, so that the axial space is consequently necessarily reduced, which is advantageous for engines of contained dimension.
- the cylindrical side wall is provided, at its free end, toothed connection means, said fixing flange being located (axially offset) of the tooth connection means. So, the space internal disc directly above the connecting means is free, so that one can perform the diametrical machining of the teeth of this disc.
- the locking means are defined by at least one axial lateral slot formed in the centering ring of the disc and ending in an angular slot, and by a radial lug protruding from the cylindrical support and successively engaging in the slots , locking the support in the crown of the veil.
- the internal radial clamping flange is attached by welding to the side wall of the disc. This is particularly advantageous for engines of reduced size for which machining difficulties may be otherwise encountered.
- vibratory damping means is provided between the air supply tube and the support of the air sampling device.
- the damping means comprises a split tube with elastically deformable petals engaging in the air supply tube to be applied against it and absorb the vibrations, the assembly “supply tube d air and damper tube “being held in the holder of the air bleeding device.
- said air sampling device comprises a plurality of air supply tubes arranged substantially radially in receiving holes of the cylindrical support, and regularly distributed angularly around it .
- the invention also relates to a compressor comprising:
- coaxial rotor disks each having a radial web, vanes at the outer periphery of the fabric, traversed by an air stream, and a bore at the inner periphery of the fabric, said disks being associated in rotation by connecting means; teeth terminating cylindrical side walls of the discs, and
- a centripetal air sampling device arranged between the webs of two consecutive disks and bringing air from the vein towards the bores.
- the compressor is remarkable in that said device for extracting centripetal air is reported, in its entirety, in the internal space between the fabric and the side wall of one of said disks. consecutive in the manner defined above, with the tooth connecting means of the disc projecting from the insert device, and in that the internal space of the other of said consecutive discs, delimited by the side wall with tooth connection means is free, free of obstacles, at least in line with its toothed connection means.
- the fixing flange as described with reference to FIG. 2 is omitted and the diametrical machining of the teeth of the toothed connection (curvic) of the rotor disk in question can be eliminated. to be done directly, as well as that of the disc with the air intake device reported, since the latter is not in line with the tooth connection means.
- the centripetal air sampling device is integral with the downstream disk of the two consecutive disks, respectively upstream and downstream.
- the invention also relates to a turbomachine for an aircraft, of the type comprising at least one axial compressor with an air sampling device, a combustion chamber and a turbine.
- the axial compressor is as defined above.
- FIG. 1 is a longitudinal and schematic half-section of a high-pressure axial compressor for a turbomachine with rotor disks associated by bolt connection means and a centripetal radial air sampling device, in accordance with the prior art described above.
- FIG. 2 is a longitudinal and schematic half-section of a part of a turbomachine compressor with rotor discs associated by tooth connection means and a centripetal radial air sampling device, according to the prior art described above.
- Figure 3 is a view similar to Figure 2 with, according to the invention, the arrangement of the centripetal air sampling device in one of the compressor discs.
- Figure 4 shows the air bleeding device of Figure 3 before mounting on the downstream disk concerned.
- Figure 5 shows the two rotor disks separated with the toothed connections for their diametrical machining.
- Figures 6a, 6b and 6c show the assembly with centering and locking of the air bleeding device on the downstream disk of the compressor.
- the centripetal air sampling device 15 is housed in the respective interdiscal annular cavity 14 of the compressor 2 and, according to the invention, is attached to one of the two rotor disks. respectively upstream 3A and downstream 3B delimiting the cavity, in this case in the internal space 14B of the downstream disk 3B in the embodiment shown.
- the downstream disk 3B includes the air sampling device 15 which comprises a cylindrical support 23 in the orifices 26 which are radially mounted air supply tubes 16 identical to each other.
- the air sampling device 15 comprises a cylindrical support 23 in the orifices 26 which are radially mounted air supply tubes 16 identical to each other.
- four air supply tubes may be provided at 90 ° from each other to ensure a suitable air supply to the bore of the discs in which the turbine shaft to be cooled.
- a different number of tubes is of course possible.
- Each sampling tube or air intake tube 16 terminates at its outlet 19 by a base 31 which abuts against an annular portion 32 of the cylindrical support 23.
- damping means 29 such as damping slotted tubes with petals 33 intended to absorb, by means of elasticity of the petals applying against the wall of the respective tubes 16, the centrifugal effect and vibrations occurring during operation of the engine.
- Each damping tube 33 also ends with a base 34 which is pressed against the base 31 of the sampling tube 16.
- the set of pairs of tubes 16-33 is held axially in position in the holes 26 of the support 23 by any appropriate means of blocking
- the cylindrical support 23 has, on the side intended to be turned towards the upstream disk 3A, a substantially flat part 35 extending radially outwards from the annular part 32 with, in the vicinity of its periphery, holes 36 in which are adapted to engage bolts 37.
- the screw 38 of the bolt 37 shown is mounted in the hole concerned and that the nut 39 is placed against an inner radial flange 40 of the downstream disc 3B, this flange is intended for fixing the device 15 on the disk 3B and it comes perpendicularly from the cylindrical side wall 12 of the latter.
- the nut 39 of the bolt 37 is mounted on the screw 38 immobilizing the sampling device 15 on the upstream disk.
- the cylindrical support 23 On the side intended to be turned towards the downstream disk 3B, the cylindrical support 23 has an outer annular flange 41 on which we will return and which is intended to cooperate, for centering and locking purposes, with the crown 30 issuing perpendicularly from the radial web 4 of the downstream rotor disk 3B.
- the sampling device 15 in the internal space 14B of the downstream disc, delimited by the cylindrical lateral wall 12 and the radial web 4 of said disc, will be housed, in its entirety, the sampling device 15.
- the inner radial flange 40 of annular shape, is arranged close to the toothing 10C of the connecting means 10 of the downstream disc and it projects radially inwardly of the side wall, in the internal space 14B. .
- the fastening flange 40 of the downstream disk situated in the space 14B, is axially offset towards the right of the plane PR. and is therefore not under the teeth 10C, and that the internal space 14A of the upstream disk is now free of flanges or any other obstacle, internally to the teeth 10B of the connecting means, in particular at the base of the teeth 10B thereof.
- the upstream disk 3A only includes the canvas radial 4 and the cylindrical side wall 12 at the free end of which are formed the teeth 10B of the connection.
- the arrangement of the device 15 in this disc is shown in detail with reference to FIG. 3. It can be seen, on the one hand, that the radial portion 35 of the cylindrical support 23 is applied against the flange 40 while engaging under the side wall 12 of the downstream disc 3B, with fixation of the support to the disc by the bolts 37, and secondly, that the annular flange 41 of the annular portion 32 of said support engages simultaneously in the crown 30 from the fabric of the 3B disk, which ensures not only the adjusted centering of the set "device-disk", but also the locking thereof by means 42 described below.
- the flange 40 is attached by welding inside the side wall 12 of the disc 3B, which is easier than a machining realization given the compact size of the engine. The welding is performed after the machining of the rotor disc and, since it is not located in a zone of significant effort, the mechanical strength of the disc is not affected. Welding is easier to control.
- the locking means 42 between the support 23 and the downstream disk 3B are advantageously of bayonet or dog type ensuring the maintenance of the centering by preventing it from "open".
- at least one side slot 43 parallel to the axis A, is provided in the thickness of the ring 30, which lateral slot 43 is extended and terminated by an angular slot 44 blind, bent at right angles to the axial slot 43.
- On the flange 41 of the annular portion 32 of the support is then provided at least one radial lug 45, of similar size to the width of the slots and which is intended to engage successively therein.
- FIG. 6b shows, according to the arrow F2, the radial lug 45 of the cylindrical support 23 of the centripetal device facing the lateral slot 43 of the ring, and the annular portion 32 of the support is axially introduced into the ring until at the moment when the lug 45 reaches the bottom of the lateral slot 43.
- FIG. 6c the device 15 is rotated angularly along the arrow F3 so that the lug 45 moves in the angular slot 44 until that it comes to a stop against the bottom of it.
- the centripetal device 15 is then prevented from dissociating from the downstream disk 3B and an always optimal centering of the part 32 of the support 23 in the ring 30 is ensured with a maximum reduction of the risks of leakage at this level.
- the flat part 35 of the support facing the annular flange 40 of the downstream disc is stopped in rotation by the bolts 37, which ensures the immobilization of the sampling device 15 in the internal space 14B of the 3B downstream disk.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/111,314 US10598096B2 (en) | 2014-01-24 | 2015-01-20 | Rotor disk having a centripetal air collection device, compressor comprising said disc and turbomachine with such a compressor |
| GB1612128.7A GB2537293B (en) | 2014-01-24 | 2015-01-20 | Rotor disk having a centripetal air collection device, compressor comprising said disc and turbomachine with such a compressor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1450616 | 2014-01-24 | ||
| FR1450616A FR3016936B1 (fr) | 2014-01-24 | 2014-01-24 | Disque de rotor a dispositif de prelevement d'air centripete, compresseur comportant ledit disque et turbomachine avec un tel compresseur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015110751A1 true WO2015110751A1 (fr) | 2015-07-30 |
Family
ID=50877416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2015/050135 Ceased WO2015110751A1 (fr) | 2014-01-24 | 2015-01-20 | Disque de rotor a dispositif de prélèvement d'air centripète, compresseur comportant ledit disque et turbomachine avec un tel compresseur |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10598096B2 (fr) |
| FR (1) | FR3016936B1 (fr) |
| GB (1) | GB2537293B (fr) |
| WO (1) | WO2015110751A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209980A (zh) * | 2017-06-30 | 2019-01-15 | 中国航发商用航空发动机有限责任公司 | 一种用于轴流压气机的导流板 |
| FR3073560A1 (fr) * | 2017-11-10 | 2019-05-17 | Safran Helicopter Engines | Roue monobloc de turbomachine d'aeronef |
| CN111315961A (zh) * | 2017-11-14 | 2020-06-19 | 赛峰飞机发动机公司 | 径向向心空气提取机构的支承装置 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3077327B1 (fr) * | 2018-01-30 | 2020-02-21 | Safran Aircraft Engines | Ensemble pour turbine de turbomachine comprenant un anneau mobile d'etancheite |
| FR3081027B1 (fr) * | 2018-05-09 | 2020-10-02 | Safran Aircraft Engines | Turbomachine comportant un circuit de prelevement d'air |
| US10954796B2 (en) * | 2018-08-13 | 2021-03-23 | Raytheon Technologies Corporation | Rotor bore conditioning for a gas turbine engine |
| FR3095492B1 (fr) * | 2019-04-26 | 2021-05-07 | Safran Aircraft Engines | Outil pour deposer un disque de soufflante d’un module |
| FR3116558B1 (fr) * | 2020-11-20 | 2023-06-09 | Safran Aircraft Engines | Ensemble d’elements de rotor de turbomachine equipe de dispositf d’etancheite. |
| US11674394B2 (en) * | 2021-02-11 | 2023-06-13 | Pratt & Whitney Canada Corp. | Gas turbine engine rotor assembly and method of using same |
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| FR2825413A1 (fr) | 2001-05-31 | 2002-12-06 | Snecma Moteurs | Dispositif de prelevement d'air par ecoulement centripete |
| US20070053770A1 (en) * | 2005-09-08 | 2007-03-08 | General Electric Company | Methods and apparatus for operating gas turbine engines |
| FR2930589A1 (fr) * | 2008-04-24 | 2009-10-30 | Snecma Sa | Prelevement d'air centripete dans un rotor de compresseur d'une turbomachine |
| EP2123860A2 (fr) * | 2008-05-19 | 2009-11-25 | Rolls-Royce Deutschland Ltd & Co KG | Redresseur de tourbillons combiné |
| FR2952138A1 (fr) | 2009-10-30 | 2011-05-06 | Turbomeca | Procede de protection de passage d'air dans un couplage de pieces motrices en environnement non securise, couplage de mise en oeuvre et ligne rotors equipee de tels couplages |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109209980A (zh) * | 2017-06-30 | 2019-01-15 | 中国航发商用航空发动机有限责任公司 | 一种用于轴流压气机的导流板 |
| CN109209980B (zh) * | 2017-06-30 | 2020-06-05 | 中国航发商用航空发动机有限责任公司 | 一种用于轴流压气机的导流板 |
| FR3073560A1 (fr) * | 2017-11-10 | 2019-05-17 | Safran Helicopter Engines | Roue monobloc de turbomachine d'aeronef |
| CN111315961A (zh) * | 2017-11-14 | 2020-06-19 | 赛峰飞机发动机公司 | 径向向心空气提取机构的支承装置 |
| CN111315961B (zh) * | 2017-11-14 | 2022-06-10 | 赛峰飞机发动机公司 | 径向向心空气提取机构的支承装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201612128D0 (en) | 2016-08-24 |
| GB2537293B (en) | 2020-05-27 |
| GB2537293A (en) | 2016-10-12 |
| FR3016936B1 (fr) | 2019-05-17 |
| US20160333796A1 (en) | 2016-11-17 |
| FR3016936A1 (fr) | 2015-07-31 |
| US10598096B2 (en) | 2020-03-24 |
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