EP3914809A1 - Sous ensemble de montage d'un palier de guidage d'un arbre de compresseur - Google Patents
Sous ensemble de montage d'un palier de guidage d'un arbre de compresseurInfo
- Publication number
- EP3914809A1 EP3914809A1 EP20725801.3A EP20725801A EP3914809A1 EP 3914809 A1 EP3914809 A1 EP 3914809A1 EP 20725801 A EP20725801 A EP 20725801A EP 3914809 A1 EP3914809 A1 EP 3914809A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nut
- shaft
- locking member
- thread
- radially
- 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.)
- Pending
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 abstract 4
- 230000004323 axial length Effects 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000000295 complement effect Effects 0.000 description 5
- 239000011295 pitch Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- 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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/073—Fixing them on the shaft or housing with interposition of an element between shaft and inner race ring
-
- 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
- F01D25/162—Bearing supports
-
- 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
-
- 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
- F05D2230/00—Manufacture
- F05D2230/70—Disassembly 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
- F05D2240/50—Bearings
- F05D2240/54—Radial 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
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
- F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
-
- 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 invention relates to a sub-assembly of a turbomachine, in particular of an aircraft turbomachine, by which an internal ring of a bearing is mounted.
- This bearing in particular guiding a high pressure compressor shaft, without this application being limiting.
- Blower engines have multiple compressor stages, including a low pressure (LP) compressor and a high pressure (HP) compressor. Upstream of the low-pressure compressor is placed a large moving blade wheel, or blower, which supplies both the primary flow which passes through the LP and HP compressors and the cold flow, or secondary flow, concentric with the primary flow.
- LP low pressure
- HP high pressure
- Modern aero engines are often made in the form of an assembly of modules which may include stationary parts and moving parts.
- a module is defined as a sub-assembly of an engine which has geometric characteristics at the level of its interfaces with adjacent modules sufficiently precise for it to be delivered individually and which has undergone a separate balancing when it comprises parts. rotating.
- the assembly of the modules makes it possible to constitute a complete engine, reducing to the maximum the operations of balancing and pairing of interface parts.
- the modularity of an engine is a key element for maintenance. Indeed, during an intervention, the parts must be easily accessible without having to disassemble a large number of engine parts. In practice, we try to get a breakdown into a few major modules. For example for a
- Fan turbojet we are looking for a division into three modules: a first major module for the front part comprising the fan and the LP compressor, a second major module for the part comprising the HP body and a third major module for the rear part of the engine comprising the LP turbine and the turbine shaft.
- the bearing comprises an internal ring which is shrunk onto a cylindrical portion of a bevel gear for driving accessories, which is itself shrunk onto the shaft end and rotatably coupled by a groove and rib system.
- the inner nut is screwed onto the shaft end to axially push the bevel gear downstream and the bevel gear in turn pushes the inner race of the bearing downstream against a shoulder of the shaft end.
- a nut lock is present to prevent possible loosening of the nut relative to the shaft end.
- the disassembly of the major module comprising the high pressure shaft is carried out according to the succession of the following steps:
- the known structure of the sub-assembly does not make it possible to have a sufficient axial length of the thread to completely disengage the shrinkage between the bevel pinion and the shaft end.
- a jack is then used in a fourth step to continue the disengagement of the shrinking, but it generates a significant axial offset between the two rings of the bearing. This can damage the balls but also mat the bearing rings.
- the object of the invention is to provide a sub-assembly of connection between a bearing and the high pressure shaft end making it possible to avoid the use of the jack and to keep the integrity of the bearing by lengthening the length of the thread of the 'nut.
- the invention proposes a turbomachine sub-assembly comprising a shaft of the turbomachine, a guide bearing for an axial end of said shaft of the turbomachine, the sub-assembly comprising a sleeve of revolution mounted radially between the end of the shaft and an internal ring of the guide bearing, a nut which is connected to the end of the shaft by screwing and which axially clamps the sleeve against a shoulder of the end of the shaft and a locking member of the nut in rotation with respect to the end of the shaft,
- the locking member of the nut comprises a first section carrying a plurality of flexible tabs, one end A of each tab of which cooperates with a radially internal annular wall of the end of the shaft and comprises a second section which cooperates with the nut,
- the second section of the locking member is connected to the nut by screwing and the characteristics of the thread between the locking member and the nut are different from the characteristics of the thread between the nut and the end of the shaft.
- Screwing the nut inside the shaft end makes it possible to form a thread of greater axial length, thus making it possible to have a sufficient axial length of the thread to completely disengage the shrinkage between the bevel gear and the end tree.
- the direction of the thread between the locking member and the nut is opposite to the direction of the thread between the nut and the end of the shaft.
- the end of the shaft comprises a radially inner annular wall which carries a thread and the nut has a radially outer annular wall which carries a thread cooperating with the thread of the end of the shaft.
- the nut comprises a radially internal annular wall which carries an internal thread and the locking member comprises a radially external annular wall which carries an external thread cooperating with the internal thread of the nut.
- the radially internal annular wall of the end of the shaft comprises at least one annular groove which receives said end A of each tab of the locking member.
- the radially inner annular wall of the end of the shaft comprises a first annular groove which receives said end A of each tab of the locking member when the locking member is screwed into the nut and a second annular groove which is offset relative to the first annular groove, which receives said end A of each tab of the locking member at least during a phase of mounting or removing the nut on the end of the tree.
- the nut comprises a downstream section which cooperates with the end of the shaft and with the locking member by screwing and which is arranged concentrically and inside the end of the shaft, and the the nut comprises an upstream section which projects axially upstream relative to the end of the shaft and which bears axially downstream against the sleeve of revolution.
- the invention also proposes a tool intended to cooperate with the locking member of a sub-assembly according to the invention, characterized in that it is capable of producing a radial deformation of the flexible tabs in the direction of the main axis, to allow rotation of the nut relative to the end of the shaft in a first direction.
- the invention also proposes a method for mounting a sub-assembly according to the invention, which comprises:
- a step consisting consecutively in elastically deforming the flexible tabs by the tool, in moving the locking member axially upstream to a locking position of the nut and in withdrawing the tool to allow an elastic return paws.
- the invention also proposes a method of dismantling a sub-assembly according to the invention, which comprises:
- FIG. 1 is a schematic representation in axial section of an aircraft turbomachine
- FIG. 2 is a detail on a larger scale of the turbomachine shown in FIG. 1, showing the connection sub-assembly between the bearing and the upstream end of the high pressure shaft;
- FIG. 2 are views of the sub-assembly shown in FIG. 2, showing several assembly steps.
- FIG. 1 represents an aircraft turbomachine 10 of the bypass type with main axis A.
- the turbomachine 10 comprises a primary stream 12 and a secondary stream 14 coaxial with one another and coaxial with the main axis A.
- the primary stream 12 is located radially inside the secondary stream 14.
- the turbomachine 10 also comprises a fan 16 which is coaxial with the main axis A and which is installed at the upstream axial end of the turbomachine.
- the fan 16 delivers air to the primary vein 12 and to the secondary vein 14.
- the primary stream 12 comprises successively in the axial direction, a low pressure compressor 18, a high pressure compressor 20, a combustion chamber 22, a high pressure turbine 24 and a low pressure turbine 26.
- the low pressure compressor 18 and the low pressure turbine 26 are coupled to each other by a low pressure shaft 28.
- the high pressure compressor 20 and the high pressure turbine 24 are coupled to each other by a shaft. high pressure 30.
- the fan 16 mainly comprises a fan disk 32, a plurality of blades 34 which are carried by the fan disk 32 extending radially with respect to the main axis A of the turbomachine 10 and an inlet cone 36 which axially extends the fan disk 32 upstream, which gives the radially central part of the fan 16 an aerodynamic configuration.
- the fan 16 is driven in rotation around the main axis A of the turbomachine 10 by means of the low pressure shaft 28.
- the bearing 42 is a ball bearing and comprises an outer ring 44 which is secured to a fixed element of the turbomachine 10 (not shown) and an inner ring 46 which is secured to the end of the shaft 40.
- the internal ring 46 is assembled by shrinking on a cylindrical sleeve 48 belonging to a bevel gear 50 intended to couple an accessory of the turbomachine 10 with the high pressure shaft 30.
- the cylindrical sleeve 48 is interposed between the internal ring 46 and the end of the shaft 40 and it is itself coupled to the high pressure shaft 30 by shrinking and by cooperation of complementary splines 52.
- the bevel gear 50 is axially abutted downstream against a shoulder 54 of the shaft end 40 by a nut 56 which is screwed onto the shaft end 40 and which bears axially downstream against a upstream end portion 58 of the Bevel pinion 50.
- a spacer (not shown) is interposed axially between the downstream end 60 of the cylindrical sleeve 48 and the shoulder 54 of the shaft end 40.
- the nut 56 is screwed onto a radially internal face 62 of the shaft end 40.
- the nut 56 comprises a radially outer face 64 which comprises a thread 66 complementary to a thread 68 of the radially inner face 62 of the shaft end 40.
- the axial length of these complementary threads of the nut 56 and of the shaft end 40 is determined to enable the shrinking between the cylindrical sleeve 48 of the bevel gear 50 and the shaft end 40 to be disengaged.
- this axial length has no impact on the axial size of the sub-assembly, which makes it possible to have an axial length greater than that implemented in the state of the art.
- this axial length is limited only by the axial dimension of the shaft end 40.
- the nut 56 has a downstream section 70 which includes the outer face 64 on which the thread 66 is formed. This downstream section 70 is arranged concentrically inside the shaft end 40.
- the nut 56 has an upstream section 72 which extends the downstream section 70 upstream and which projects axially upstream relative to the shaft end 40.
- the diameter of the upstream section 72 is greater than the diameter of the downstream section 70 and the downstream end 72A of the upstream section 72 is in contact axially downstream against the upstream end portion 58 of the bevel gear 50.
- the purpose of the nut 56 is to axially press downstream the bevel gear 50 against the shoulder 54 of the shaft end 40.
- a locking member 74 cooperates with the nut 56 and the shaft end 40 to prevent any rotation of the nut 56 relative to the shaft end 40 and therefore to prevent its loosening.
- the locking member 74 comprises a first section 76, which is a downstream section of the locking member 74, which carries a plurality of flexible tabs 78, a free downstream end 78A of each tab 78 of which cooperates with the annular wall.
- radially internal 62 of the shaft end 40 and comprises a second section 80, which is an upstream section of the locking member 74, which cooperates with the nut 56.
- the upstream section 80 of the locking member 74 cooperates with the nut 56 by screwing and the free downstream end 78A of each tab 78 cooperates with at least one annular groove 90 formed in the radially inner annular wall 62 of the end. shaft 40, thus preventing any axial displacement of the locking member 74 relative to the shaft end 40.
- each tab 78 When the locking member 74 is in position in the shaft end 40, each tab 78 is elastically deformed in the radial direction in the direction of the main axis A. The free downstream end 78A of each tab 78 is then pressed. radially outwards against the radially internal annular wall 62 of the shaft end 40 by elastic return.
- the upstream section 80 of the locking member 74 is arranged coaxially inside the downstream section 70 of the nut 56 and it comprises a thread 82 formed on its outer annular face 84 which cooperates with a complementary thread 86 formed on the internal annular face 88 of the downstream section 70 of the nut 56.
- the characteristics of the thread between the nut 56 and the shaft end 40 are different from the characteristics of the thread between the nut 56 and the member lock 74.
- the nut 56 could turn freely relative to the shaft end 40 and relative to the locking member 74 and thus it could move axially, despite the fact that the 'locking member 74 is locked axially relative to the shaft end 40.
- the two threads are opposite to each other, that is to say that one thread has a right pitch and the other thread has a left pitch.
- the two threads have different pitches.
- each tab 78 of the locking member 74 cooperates with at least one annular groove 90 formed on the radially internal face 62 of the shaft end 40.
- the locking member 74 is able to occupy two axial positions relative to the shaft end 40, a first position is occupied when the sub-assembly is assembled and a second provisional position which is occupied during the assembly process of the sub-assembly, as will be seen below.
- the first position is located axially upstream with respect to the second position.
- the shaft end 40 comprises a first annular groove 90 with which the free downstream end 78A of each tab 78 of the locking member 74 cooperates when the locking member is in the first position and a second annular groove 92 with which the free downstream end 78A of each tab 78 of the locking member 74 cooperates when the locking member is in the second position.
- the second annular groove 92 is therefore located axially downstream of the first annular groove 90.
- FIGS. 3A to 3D different states of the sub-assembly which has just been described, each corresponding to a step of the assembly method of the sub-assembly.
- the locking member 74 is approached the end of the shaft 40, on which the bevel gear 50 and the bearing 42 have been mounted beforehand, in a position located axially opposite and upstream of the shaft end 40.
- each tab 78 is not subjected to any mechanical stress so that its free downstream end 78A is located at a radial distance from the main axis A which is greater than the radial distance between the bottom of each annular groove 90, 92 of the shaft end 40 and the main axis A.
- the tabs 78 are elastically deformed to bring their free downstream ends 78A closer to the main axis A, in order to reduce the overall diameter of the locking member 74.
- a specific tool (not shown) is required. used to achieve this elastic deformation.
- the locking member 74 is moved axially downstream in the shaft end 40, to an axial position corresponding to the second provisional position.
- the elastic deformation of the tabs 78 by the specific tool is ceased, the tabs 78 deploy radially outwards by elastic return and their free downstream ends 78A are introduced into the second annular groove 92 further downstream. .
- This provisional position allows subsequent assembly of the locking member 74 with the nut 56 without the presence of the nut 56 hindering the positioning of the locking member 74.
- a third step as can be seen in FIG. 3C, the nut 56 is brought near the end of the shaft 40, in a position located axially opposite and upstream of the end of the shaft 40.
- a fourth step corresponding to the transition between the state shown in Figure 3C to the state shown in Figure 3D, the nut 56 is screwed on the shaft end 40 to the position shown in Figure 3D for which the downstream end 72A of the upstream section 72 bears axially downstream against the upstream end portion 58 of the bevel pinion 50.
- the locking member 74 is in a position downstream of the nut 56 which is such that its upstream section 80 is always located downstream of the nut 56 so as not to interfere with the screwing of nut 56.
- a fifth step corresponding to the transition between the state shown in Figure 3D to the state shown in Figure 3E, the locking member 74 is moved axially upstream to its locking position of the 'nut 56.
- the tabs 78 are elastically deformed so as to exit their free downstream ends 78A from the main axis A of the second annular groove 92 by reducing the overall diameter of the locking member 74.
- the locking member 74 is moved axially upstream until it comes into contact with the nut and then it is screwed onto the nut 56 by cooperation of their respective threads.
- the screwing of the locking member 74 on the nut is carried out until the locking member 74 reaches the first axial position shown in FIG. 3E.
- the tabs 78 are then deployed radially outwards by elastic return and their free downstream ends 78A are introduced into the first annular groove 90.
- the locking member 74 cooperates simultaneously with the nut and with the shaft end 40, thus preventing any unscrewing of the nut 56 of with the shaft end 40.
- the disassembly of the major module comprising the high pressure shaft is carried out according to the succession of the following steps:
- the axial length of the complementary threads of the nut 56 and of the shaft end 40 is determined to enable the shrinkage between the cylindrical sleeve 48 of the bevel gear 50 and the shaft end 40 to be disengaged. .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1902408A FR3093537B1 (fr) | 2019-03-08 | 2019-03-08 | Sous ensemble de montage d'un palier de guidage d'un arbre de compresseur |
| PCT/FR2020/050409 WO2020183089A1 (fr) | 2019-03-08 | 2020-03-02 | Sous ensemble de montage d'un palier de guidage d'un arbre de compresseur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3914809A1 true EP3914809A1 (fr) | 2021-12-01 |
Family
ID=67002038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20725801.3A Pending EP3914809A1 (fr) | 2019-03-08 | 2020-03-02 | Sous ensemble de montage d'un palier de guidage d'un arbre de compresseur |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11808160B2 (fr) |
| EP (1) | EP3914809A1 (fr) |
| CN (1) | CN113518852B (fr) |
| FR (1) | FR3093537B1 (fr) |
| WO (1) | WO2020183089A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12416246B2 (en) * | 2023-06-23 | 2025-09-16 | Pratt & Whitney Canada Corp. | Bearing inner race with sleeve and integrated puller |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE856335C (de) * | 1949-03-25 | 1952-11-20 | Karl Von Eye | Schutz-Pruef-Schraubenzieher |
| US3343854A (en) * | 1965-04-07 | 1967-09-26 | United Aircraft Corp | Shaft lock for compressor or turbine lock |
| FR2783579B1 (fr) * | 1998-09-17 | 2000-11-03 | Snecma | Agencement de retenue d'un palier, notamment pour un arbre de compresseur a haute pression |
| FR2857708B1 (fr) * | 2003-07-15 | 2005-09-23 | Snecma Moteurs | Dispositif perfectionne de fixation d'un arbre de moteur sur un support de palier |
| FR2896825B1 (fr) * | 2006-01-27 | 2011-11-18 | Snecma | Systeme de fixation d'arbre moteur avec ecrou tendeur |
| FR2896826B1 (fr) * | 2006-01-30 | 2008-04-25 | Snecma Sa | Systeme de liaison d'arbre moteur avec ecrou escamotable |
| FR2917783B1 (fr) * | 2007-06-25 | 2013-04-12 | Snecma | Systeme de liaison d'arbre moteur avec ecrou auto-extracteur |
| DE102009060056A1 (de) * | 2009-12-22 | 2011-06-30 | BorgWarner Inc., Mich. | Wellenverband eines Abgasturboladers |
| FR2963062B1 (fr) * | 2010-07-20 | 2012-08-31 | Snecma | Assemblage entre un tourillon d'arbre de compresseur et un pignon conique pour l'entrainement d'un boitier d'accessoires d'une turbomachine |
| WO2012159779A1 (fr) * | 2011-05-23 | 2012-11-29 | Schaeffler Technologies AG & Co. KG | Ensemble palier à roulement comprenant un moyen de serrage soutenant une liaison par complémentarité de forme |
| CN104246145B (zh) * | 2012-04-25 | 2016-08-17 | 通用电气公司 | 用于装配阻尼器轴承组件的装置和方法 |
| US8984313B2 (en) | 2012-08-31 | 2015-03-17 | Intel Corporation | Configuring power management functionality in a processor including a plurality of cores by utilizing a register to store a power domain indicator |
| FR3005487B1 (fr) | 2013-05-13 | 2015-06-05 | Snecma | Ensemble formant joint d'etancheite pour une turbomachine comportant des moyens de lubrification d'un joint a brosse |
| FR3007070B1 (fr) * | 2013-06-12 | 2016-10-07 | Snecma | Ensemble pour turbomachine |
| FR3029980B1 (fr) | 2014-12-15 | 2017-01-13 | Snecma | Systeme de reparation d'une attache equipant une paroi de reacteur |
| FR3033359B1 (fr) | 2015-03-02 | 2017-04-07 | Snecma | Disque aubage monobloc comportant un moyeu ayant une face evidee a laquelle est rapporte un organe de comblement |
| FR3035267B1 (fr) | 2015-04-20 | 2018-05-25 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Puce electronique comportant une face arriere protegee |
| JP3198814U (ja) * | 2015-05-13 | 2015-07-23 | 陳俊谷 | 広告のぼり旗用ポール立て台クイック組立固定構造 |
| US20180156115A1 (en) * | 2016-12-06 | 2018-06-07 | United Technologies Corporation | Nut anti-rotation via an insert |
| FR3068510B1 (fr) | 2017-07-03 | 2019-08-30 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Procede de realisation d'une interface destinee a assembler temporairement un support microelectronique et une poignee de manipulation, et interface d'assemblage temporaire |
| US10809621B2 (en) | 2017-12-21 | 2020-10-20 | Commissariat à l'énergie atomique et aux énergies alternatives | Process for the exposure of a region on one face of an electronic device |
| US10975720B2 (en) | 2018-07-31 | 2021-04-13 | Safran Aircraft Engines | Balancing system for an aircraft turbomachine |
-
2019
- 2019-03-08 FR FR1902408A patent/FR3093537B1/fr active Active
-
2020
- 2020-03-02 CN CN202080018635.8A patent/CN113518852B/zh active Active
- 2020-03-02 WO PCT/FR2020/050409 patent/WO2020183089A1/fr not_active Ceased
- 2020-03-02 US US17/435,428 patent/US11808160B2/en active Active
- 2020-03-02 EP EP20725801.3A patent/EP3914809A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3093537B1 (fr) | 2021-06-11 |
| CN113518852A (zh) | 2021-10-19 |
| US20220127973A1 (en) | 2022-04-28 |
| FR3093537A1 (fr) | 2020-09-11 |
| WO2020183089A1 (fr) | 2020-09-17 |
| US11808160B2 (en) | 2023-11-07 |
| CN113518852B (zh) | 2024-07-02 |
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