EP0719906B1 - Distributeur supersonique d'étage d'entrée de turbomachine - Google Patents
Distributeur supersonique d'étage d'entrée de turbomachine Download PDFInfo
- Publication number
- EP0719906B1 EP0719906B1 EP95402940A EP95402940A EP0719906B1 EP 0719906 B1 EP0719906 B1 EP 0719906B1 EP 95402940 A EP95402940 A EP 95402940A EP 95402940 A EP95402940 A EP 95402940A EP 0719906 B1 EP0719906 B1 EP 0719906B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blades
- distributor
- distributor according
- radius
- profile
- 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.)
- Expired - Lifetime
Links
Images
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
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/302—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor characteristics related to shock waves, transonic or supersonic flow
Definitions
- the construction of the profile of the blades in the radial direction is carried out by stacking while respecting a homothety of the profile substantially equal to the ratio of the radius considered to the mean radius of the vein.
- the distributor outlet angle is adjusted by a twisting of the blades between the foot and the head.
- the ratio between the section of the nozzle neck and the outlet section is chosen at each radius according to the desired pressure ratio so as to comply with a law of radial balance.
- the trailing edge of each blade represents from 4 to 8% of the pitch defined between the successive blades.
- the blades have an evolving profile according to the radius and free of parts angular, with the exception of trailing edges and leading edges which may be advantageously truncated.
- the blades are manufactured separately and attached to the hub.
- the blades are anchored in the hub and the outer casing by parts in the shape of a fir tree base.
- the dispenser according to the invention can be produced according to the technology of the powder metallurgy.
- the blades are adapted to define at the outlet a supersonic flow between Mach 1.2 and Mach 2.5.
- the distributor according to the invention is particularly suitable for a turbine turbopump.
- the blades have an inclination at output between 65 and 80 ° relative to the axis of the distributor.
- the geometry of the distributor according to the invention makes it possible to obtain a supersonic output speed while respecting radial balance and ensuring a complete supply of the vein at the inlet of the first rotor.
- FIG. 1 the overview of a supersonic distributor 110 according to the invention comprising a set of vanes 103 distributed between a hub 101 and an outer casing 102.
- Figures 2 to 5 show the fluid passages 104 formed between the vanes 103 whose leading edge and trailing edge respectively carry the references 132 and 131.
- the vanes 103 In section developed according to a given radius; for example in cross section of foot (Figure 2), in medium section ( Figure 3) and in head section (Figure 4), the vanes 103 define a profile in the form of a two-dimensional half-nozzle.
- each dawn 103 in a dawn to dawn plan such as those of Figures 2 to 4
- has a straight upstream portion 134, a boss 133 defining a neck 142 to accelerate the flow to Mach 1, and a curved downstream part 135 which ends in a uniform flow region with a trailing edge 131 end which can be truncated perpendicular to the axis of rotation.
- the profile of the distributor blades 110 according to the invention is characterized in particular by the presence of a leading edge 132 end and especially a trailing edge 131 end.
- the thickness e of the trailing edge 131 can be between approximately 4 and 8% of the pitch p defined between the successive vanes 103 (FIG. 3).
- a thickness e of the trailing edge 131 of the order of 6% of the pitch p is generally satisfactory for limiting the level of losses and improving the quality of the flow.
- the construction of the profile of a blade 103 in the radial direction of the height H of dawn is performed by stacking while respecting a profile homothety substantially equal to the ratio of the radius considered to the average radius R of the vein.
- the distributor outlet angle is adjusted by a twisting of the blades 103 between the foot 101 and the head 102. This is done so as to allow a respect of the radial evolution of the Mach triangle at the entry of the wheel mobile.
- the changing profile of the blades 103 is such that the blades are free of angular parts with the exception of leading edges and edges which can advantageously be truncated.
- the vanes 103 can be manufactured separately and attached to the hub 101.
- the blades 103 can be anchored in the hub 101 and the outer casing 102 by ends 138, 139 in the shape of a fir tree foot.
- a vane distributor according to the invention can advantageously be produced according to powder metallurgy technology.
- the vanes 103 may have various inclinations at the outlet according to the applications envisaged.
- the tilt vanes 103 relative to the axis of the distributor can be between approximately 65 and 80 °.
- Figure 7 concerns the previous example and shows the triangles of speeds upstream of the turbine rotor at foot level (vectors A, A '), a mean radius (vectors B, B ') and of the head (vectors C, C').
- Vectors A, B, C give the output speed values in number of Mach (namely 1.86; 1.74 and 1.63 respectively) for an absolute inclination ⁇ a 74 °, for the foot, at the medium radius and the head of the blades 103.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
- la figure 1 est une vue de face d'un distributeur supersonique selon l'invention,
- les figures 2, 3 et 4 sont des coupes respectivement selon les lignes II-II, III-III, et IV-IV de la figure 1 correspondant à une coupe de pied, une coupe moyenne et une coupe de tête montrant le profil des aubes du distributeur, selon l'invention,
- la figure 5 représente une vue partielle en perspective montrant un exemple de forme d'ensemble des aubes d'un distributeur selon l'invention,
- la figure 6 est une section dans un plan parallèle au plan de sortie montrant un exemple particulier d'ancrage des aubes dans le moyeu et le carter externe,
- la figure 7 montre les triangles de vitesse à la sortie d'un distributeur selon l'invention, respectivement au niveau du pied, d'un rayon moyen et de la tête du distributeur,
- la figure 8 est une vue de face avec arrachement d'un distributeur supersonique de l'art antérieur réalisé d'une seule pièce,
- la figure 9 est une section agrandie selon la ligne IX-IX de la figure 8,
- la figure 10 est une vue partielle en perspective du distributeur connu de la figure 8, et
- la figure 11 est une section d'une aube du distributeur des figures 8 et 10, au voisinage du plan de sortie.
- rayon moyen R de la veine = 120 mm
- hauteur H des aubes = 11,9 mm
- corde C des aubes = 15,4 mm
- épaisseur e du bord de fuite = 6,6 % du pas p entre aubes,
- inclinaison des aubes par rapport à l'axe = 74° en sortie,
- nombre de canaux = 31
- taux de détente = 6,5
Claims (13)
- Distributeur supersonique d'étage d'entrée de turbomachine, comprenant un carter extérieur (102), un moyeu (101), un ensemble d'aubes périphériques (103) disposées en couronne et rattachées au moyeu (101) pour ménager entre les aubes (103) des passages de fluide (104) à vitesse supersonique transformant un écoulement à forte pression et faible vitesse en un écoulement supersonique à faible pression,
caractérisé en ce que les aubes (103) sont disposées radialement de façon régulière au sein d'un tore d'alimentation en fluide, en ce que, en coupe développée selon une ligne correspondant à un rayon donné, c'est-à-dire dans un plan aube à aube, les aubes (103) définissent un profil en forme de demi-tuyère bidimensionnelle et en ce que ledit profil présente une partie amont rectiligne (134), un bossage (133) définissant un col (142) pour accélérer l'écoulement jusqu'à un nombre de Mach égal à 1, le col (142) présentant une section variable selon le rayon considéré, et une partie aval courbe (135) qui se termine par un bord de fuite (131) qui peut être tronqué perpendiculairement à l'axe de rotation. - Distributeur selon la revendication 1, caractérisé en ce que la position du bossage (133) de chaque aube (103) et la longueur de la partie aval courbe (135) sont définies en fonction du rapport de pression désiré de part et d'autre du distributeur.
- Distributeur selon la revendication 1 ou la revendication 2, caractérisé en ce que la construction du profil des aubes (103) dans le sens radial est réalisée par empilement tout en respectant une homothétie du profil sensiblement égale au rapport du rayon considéré sur le rayon moyen de la veine (R).
- Distributeur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que pour chaque rayon, l'angle de sortie (β) du distributeur est ajusté par un vrillage des aubes (103) entre le pied et la tête.
- Distributeur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que sur toute la hauteur des aubes (103) il est maintenu un bord de fuite (131) fin ainsi qu'un rapport entre la section du col de tuyère (104) et la section de sortie qui est choisi à chaque rayon en fonction du rapport de pression souhaité.
- Distributeur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le bord de fuite (131) de chaque aube (103) représente de 4 à 8 % du pas défini entre les aubes successives (103).
- Distributeur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les aubes (103) présentent un profil évolutif selon le rayon et exempt de parties anguleuses.
- Distributeur selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les aubes (103) sont fabriquées séparément et rapportées sur le moyeu (101).
- Distributeur selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les aubes (103) sont ancrées dans le moyeu (101) et le carter externe (102) par des parties en forme de pied de sapin.
- Distributeur selon la revendication 8 ou la revendication 9, caractérisé en ce qu'il est réalisé selon la technologie de la métallurgie des poudres.
- Distributeur selon l'une quelconque des revendications 1 à 10, caractérisé en ce que les aubes (103) sont adaptées pour définir en sortie un écoulement supersonique compris entre Mach 1,2 et Mach 2,5.
- Distributeur selon l'une quelconque des revendications 1 à 11, caractérisé en ce qu'il est adapté à une turbine de turbopompe.
- Distributeur selon la revendication 12, caractérisé en ce que les aubes présentent en sortie une inclinaison comprise entre 65 et 80° par rapport à l'axe du distributeur.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9415693 | 1994-12-27 | ||
| FR9415693A FR2728618B1 (fr) | 1994-12-27 | 1994-12-27 | Distributeur supersonique d'etage d'entree de turbomachine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0719906A1 EP0719906A1 (fr) | 1996-07-03 |
| EP0719906B1 true EP0719906B1 (fr) | 1999-04-14 |
Family
ID=9470273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95402940A Expired - Lifetime EP0719906B1 (fr) | 1994-12-27 | 1995-12-26 | Distributeur supersonique d'étage d'entrée de turbomachine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5676522A (fr) |
| EP (1) | EP0719906B1 (fr) |
| JP (1) | JP3779360B2 (fr) |
| CA (1) | CA2165863A1 (fr) |
| DE (1) | DE69509056T2 (fr) |
| FR (1) | FR2728618B1 (fr) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6508631B1 (en) | 1999-11-18 | 2003-01-21 | Mks Instruments, Inc. | Radial flow turbomolecular vacuum pump |
| US6358012B1 (en) | 2000-05-01 | 2002-03-19 | United Technologies Corporation | High efficiency turbomachinery blade |
| WO2002004788A1 (fr) * | 2000-07-06 | 2002-01-17 | Drysdale Kenneth William Patte | Turbine, systeme de generation d'electricite destine a cette turbine et procede de generation d'electricite |
| RU2202696C2 (ru) * | 2001-02-22 | 2003-04-20 | Масютин Владимир Ильич | Газотурбинный двигатель |
| US7334990B2 (en) * | 2002-01-29 | 2008-02-26 | Ramgen Power Systems, Inc. | Supersonic compressor |
| US20030210980A1 (en) * | 2002-01-29 | 2003-11-13 | Ramgen Power Systems, Inc. | Supersonic compressor |
| US7293955B2 (en) * | 2002-09-26 | 2007-11-13 | Ramgen Power Systrms, Inc. | Supersonic gas compressor |
| US7434400B2 (en) * | 2002-09-26 | 2008-10-14 | Lawlor Shawn P | Gas turbine power plant with supersonic shock compression ramps |
| GB0323909D0 (en) * | 2003-10-11 | 2003-11-12 | Rolls Royce Plc | Turbine blades |
| FR2868467B1 (fr) * | 2004-04-05 | 2006-06-02 | Snecma Moteurs Sa | Carter de turbine a crochets refractaires obtenu par procede mdp |
| DE102009013399A1 (de) * | 2009-03-16 | 2010-09-23 | Mtu Aero Engines Gmbh | Tandemschaufelkonstruktion |
| US20130045107A1 (en) * | 2010-03-19 | 2013-02-21 | Sp Tech | Propeller blade |
| US8683791B2 (en) | 2010-08-20 | 2014-04-01 | Toyota Motor Engineering & Manufacturing North America, Inc. | Method and system for homogenizing exhaust from an engine |
| JP6030853B2 (ja) * | 2011-06-29 | 2016-11-24 | 三菱日立パワーシステムズ株式会社 | タービン動翼及び軸流タービン |
| CN104937236B (zh) * | 2013-02-21 | 2018-10-30 | 三菱重工业株式会社 | 涡轮机动叶片 |
| CN104420888B (zh) * | 2013-08-19 | 2016-04-20 | 中国科学院工程热物理研究所 | 渐缩流道跨音速涡轮叶片及应用其的涡轮 |
| CN105822432A (zh) * | 2016-04-22 | 2016-08-03 | 山东元动力科技有限公司 | 一种微型涡喷发动机 |
| US10677077B2 (en) | 2017-03-01 | 2020-06-09 | Panasonic Corporation | Turbine nozzle and radial turbine including the same |
| CN107023395B (zh) * | 2017-06-07 | 2019-02-26 | 中国空气动力研究与发展中心计算空气动力研究所 | 一种可调喉道面积的超声速飞行器进气道及调节方法 |
| US10710705B2 (en) | 2017-06-28 | 2020-07-14 | General Electric Company | Open rotor and airfoil therefor |
| CN107489462A (zh) * | 2017-09-18 | 2017-12-19 | 中国船舶重工集团公司第七0四研究所 | 涡轮机用沿流线周向扩张的扇形截面超音速喷嘴 |
| WO2019167319A1 (fr) | 2018-02-27 | 2019-09-06 | 株式会社Ihi | Turbopompe de moteur-fusée |
| EP3569817B1 (fr) * | 2018-05-14 | 2020-10-14 | ArianeGroup GmbH | Agencement d'aubes directrices à utiliser dans une turbine |
| CN111425259A (zh) * | 2020-02-27 | 2020-07-17 | 合肥通用机械研究院有限公司 | 一种磁悬浮超音速透平膨胀机 |
| US11840939B1 (en) * | 2022-06-08 | 2023-12-12 | General Electric Company | Gas turbine engine with an airfoil |
| WO2024035894A1 (fr) | 2022-08-11 | 2024-02-15 | Next Gen Compression Llc | Procédé de fonctionnement efficace d'un compresseur à charge partielle |
| US12066027B2 (en) | 2022-08-11 | 2024-08-20 | Next Gen Compression Llc | Variable geometry supersonic compressor |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL4075C (fr) * | 1913-10-31 | |||
| US1801427A (en) * | 1927-03-12 | 1931-04-21 | Holzwarth Gas Turbine Co | Gas-turbine blade |
| US3156407A (en) * | 1958-07-07 | 1964-11-10 | Commissariat Energie Atomique | Supersonic compressors |
| US3333817A (en) * | 1965-04-01 | 1967-08-01 | Bbc Brown Boveri & Cie | Blading structure for axial flow turbo-machines |
| CH427851A (de) * | 1965-04-01 | 1967-01-15 | Bbc Brown Boveri & Cie | Laufschaufelkranz für transsonische Strömung |
| US3565548A (en) * | 1969-01-24 | 1971-02-23 | Gen Electric | Transonic buckets for axial flow turbines |
| US4408957A (en) * | 1972-02-22 | 1983-10-11 | General Motors Corporation | Supersonic blading |
| GB1420318A (en) * | 1972-11-04 | 1976-01-07 | Rolls Royce | Method and apparatus for manufaccturing an article from a particulate material |
| US4639189A (en) * | 1984-02-27 | 1987-01-27 | Rockwell International Corporation | Hollow, thermally-conditioned, turbine stator nozzle |
| US4968216A (en) * | 1984-10-12 | 1990-11-06 | The Boeing Company | Two-stage fluid driven turbine |
| US5277549A (en) * | 1992-03-16 | 1994-01-11 | Westinghouse Electric Corp. | Controlled reaction L-2R steam turbine blade |
-
1994
- 1994-12-27 FR FR9415693A patent/FR2728618B1/fr not_active Expired - Lifetime
-
1995
- 1995-12-21 CA CA002165863A patent/CA2165863A1/fr not_active Abandoned
- 1995-12-22 US US08/577,388 patent/US5676522A/en not_active Expired - Lifetime
- 1995-12-26 DE DE69509056T patent/DE69509056T2/de not_active Expired - Lifetime
- 1995-12-26 EP EP95402940A patent/EP0719906B1/fr not_active Expired - Lifetime
- 1995-12-27 JP JP34138895A patent/JP3779360B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2165863A1 (fr) | 1996-06-28 |
| DE69509056D1 (de) | 1999-05-20 |
| US5676522A (en) | 1997-10-14 |
| FR2728618A1 (fr) | 1996-06-28 |
| DE69509056T2 (de) | 1999-10-21 |
| FR2728618B1 (fr) | 1997-03-14 |
| JPH08232603A (ja) | 1996-09-10 |
| JP3779360B2 (ja) | 2006-05-24 |
| EP0719906A1 (fr) | 1996-07-03 |
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