EP1719879B1 - Dispositif de protection en cas d'éclatement pour compresseur radial - Google Patents
Dispositif de protection en cas d'éclatement pour compresseur radial Download PDFInfo
- Publication number
- EP1719879B1 EP1719879B1 EP05405332A EP05405332A EP1719879B1 EP 1719879 B1 EP1719879 B1 EP 1719879B1 EP 05405332 A EP05405332 A EP 05405332A EP 05405332 A EP05405332 A EP 05405332A EP 1719879 B1 EP1719879 B1 EP 1719879B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- retaining
- compressor
- protection device
- burst protection
- 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 - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/16—Other safety measures for, or other control of, 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
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
- F01D21/045—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position special arrangements in stators or in rotors dealing with breaking-off of part of 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
-
- 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
- F04D27/0292—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- 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
- F05D2220/40—Application in turbochargers
Definitions
- the invention relates to a burst protection device for the centrifugal compressor of an exhaust gas turbocharger, as described by the features of the preamble of claim 1 and a centrifugal compressor and an exhaust gas turbocharger with such a burst protection device.
- WO 02/090722 A1 describes a burst protection device for a radial compressor of a turbocharger, in which the compressor wheel is surrounded by housing parts which are able to absorb the energy stored in the compressor wheel. Preventing debris exiting the compressor housing is referred to as containment.
- the housing parts surrounding the compressor wheel in particular the insert wall of the compressor bounding the flow duct, are divided into at least two parts. A radial part in the region of the flow deflection from the axial to the radial and an axial ring, which encloses the inlet region upstream of the compressor wheel. A large part of the energy is dissipated via forces acting radially on the insert wall.
- the object of the invention is therefore to provide a burst protection device for a centrifugal compressor of an exhaust gas turbocharger, with which the axial displacement of the compressor housing parts can be limited even without precise knowledge of the forces acting in a given space.
- the goal is achieved by two or more retention measures successively, ie temporally and spatially separated from each other to effect.
- the energy is gradually reduced and at the same time prevents the forces acting on an uncontrollably high level.
- the sliding insert wall remains sufficient space for the axial displacement after the engagement of the first retaining element and before a second retaining element is engaged. This is inside the compressor housing enough space is available to reduce the kinetic energy of the cracked compressor wheel.
- third or further retaining elements can be brought into engagement.
- Fig. 1 shows a section through the compressor of an exhaust gas turbocharger.
- the flow path of the air to be compressed is indicated in the figures by arrows.
- the terms upstream and downstream refer to this flow.
- Dashed lines indicated on the axis of rotation A arranged the compressor 60, which is surrounded by different housing parts.
- the terms radial, axial and coaxial refer to the axis of rotation A.
- the insert wall 10 Immediately radially outside of the leading and through the compressor wheel flow channel 40, the insert wall 10 is arranged.
- the insert wall 10 delimits the flow channel radially outwards and, depending on the type of attachment of the insert wall to the outer housing parts, from upstream of the compressor wheel 0bis beyond the compressor in the region of the diffuser, which is arranged downstream of the compressor wheel.
- an outer compressor housing wall 20 Radially outside the insert wall, an outer compressor housing wall 20 is arranged, via which, for example, a Filter muffler 50 or an intake for the supply of air to be compressed is attached to the compressor housing.
- the outer wall 20 is connected to the insert wall 10 in the region of the diffuser, directly or via further housing parts.
- the burst protection device In the case of bursting of the compressor wheel 60, the burst protection device according to the invention is intended to brake the insert wall separated in the region of the compressor wheel in the axial direction and thus prevent it from leaving the compressor housing at the axial exit.
- a radially outwardly projecting, coaxially arranged retaining projection 11 is provided on the insert wall, which is to cooperate in the case of bursting of the compressor wheel with brake elements.
- These brake elements are formed as formed with a central opening, annular retaining elements 31 and 21.
- a first retaining element 31 is fastened to an intermediate wall 30 arranged between the insert wall 10 and the outer wall 20.
- the first retaining element 31 is in direct contact with the retaining projection of the insert wall, so that in the case of bursting of the compressor wheel, the insert wall is braked directly in its axial movement for a first time.
- Retaining projection and retaining element can be connected to each other with a collar or successive wedge surfaces or even via a screw.
- the first braking stage of the burst protection device only after the insert wall has already moved in the axial direction.
- This embodiment has the advantage that a first impact on the insert wall, which usually leads to the above-described breakage of the insert wall, does not directly affect the braking device and approximately directly damages the first retaining element 31.
- a second retaining element 21 is offset relative to the first retaining element 31 in the axial direction. It comprises a coaxially arranged circumferential ring with a central opening.
- the circumferential ring is the radially inner boundary of a support wall 22 which is fixed to the outer wall 20.
- the support wall may be formed corrugated for additional reinforcement, as indicated in Fig. 1.
- the relative dimensions of retaining projection 11 and retaining element 21 and 31 can be explained with reference to the schematic representation in FIG. 2.
- the retaining projection has a maximum outer radius R 11 .
- the maximum Outer radius R 11 denotes the largest radius of the coaxially arranged retaining projection. If the retaining projection is provided with a wedge surface as indicated in the figure, the maximum outer radius R 11 is the radius of the outermost wedge tip.
- the retaining elements 21 and 31 have a minimum inner radius R 21 and R 31 .
- the minimum inner radius denotes the smallest radius of the openings in the retaining elements. If the openings of the retaining elements are provided with a wedge surface as indicated in the figure, the minimum inner radius is the radius of the innermost wedge tip or the narrowest point of the coaxially arranged opening.
- the maximum outer radius R 11 must be greater than the minimum inner radii R 21 and R 31 Only this ensures that the retaining projection can brake the insert wall on the way in the axial direction by engaging in the retaining elements.
- the opening radius of the second retaining element 21, that is to say the minimum inner radius R 21 is smaller than the opening radius of the first retaining element 31, that is to say the minimum inner radius R 31 .
- the retaining projection 11 is basically formed as a cylindrical, circumferential ring.
- the retaining projection can also be divided along the circumference into two or more sections, so that in the case of bursting of the compressor wheel, the forces acting on the retaining projection and the stresses caused thereby can not spread over the entire circumference.
- third or further retaining elements may be provided, which are arranged either in the region between the first and second retaining element or farther upstream of the second retaining element.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Supercharger (AREA)
Claims (8)
- Dispositif de protection en cas d'éclatement d'un compresseur radial d'un turbocompresseur, comprenant une paroi de charge (10) du carter de compresseur, limitant radialement à l'extérieur un canal d'écoulement (40) au-dessus des aubes mobiles du rotor du compresseur, et comprenant une paroi extérieure (20) du carter de compresseur qui entoure radialement vers l'extérieur la paroi de charge (10),
une saillie de retenue (11) saillant radialement vers l'extérieur étant disposée sur la paroi de charge (10) et entre la paroi de charge et la paroi extérieure, au moins deux éléments de retenue (21, 31) décalés dans la direction axiale étant prévus pour retenir la saillie de retenue (11) de la paroi de charge lors d'un déplacement axial de la paroi de charge (10),
les deux éléments de retenue (21, 31) délimitant des ouvertures annulaires et étant séparés l'un de l'autre de telle sorte qu'ils coopèrent l'un après l'autre avec la saillie de retenue (11) de la paroi de charge en cas de déplacement axial de la paroi de charge (10),
la saillie de retenue (11) présentant un rayon extérieur maximal (R11) qui est supérieur aux deux rayons intérieurs minimaux (R21, R32) des ouvertures annulaires limitées par les éléments de retenue,
caractérisé en ce que
le rayon intérieur minimal de l'ouverture de l'élément de retenue (R21) disposé plus en amont est inférieur au rayon intérieur minimal de l'ouverture de l'autre élément de retenue (R31). - Dispositif de protection en cas d'éclatement selon la revendication 1, caractérisé en ce que les deux éléments de retenue (21, 31) sont fixés séparément l'un de l'autre au carter du compresseur.
- Dispositif de protection en cas d'éclatement selon la revendication 2, caractérisé en ce que les deux éléments de retenue (21, 31) sont fixés séparément l'un de l'autre dans la direction axiale au carter du compresseur.
- Dispositif de protection en cas d'éclatement selon l'une quelconque des revendications 2 ou 3, caractérisé en ce qu'un premier élément de retenue (31) fait partie d'une paroi intermédiaire (22) disposée entre la paroi de charge (10) et la paroi extérieure (30) du carter de compresseur.
- Dispositif de protection en cas d'éclatement selon l'une quelconque des revendications 2 à 4, caractérisé en ce qu'un deuxième élément de retenue (21) est fixé à la paroi extérieure (20) du carter de compresseur et fait partie d'une paroi de support (22) guidée radialement vers l'intérieur.
- Dispositif de protection en cas d'éclatement selon la revendication 5, caractérisé en ce que la paroi de support (22) est réalisée sous forme ondulée dans la direction périphérique.
- Compresseur radial, caractérisé par un dispositif de protection en cas d'éclatement selon l'une quelconque des revendications précédentes.
- Turbocompresseur à gaz d'échappement, caractérisé par un compresseur radial selon la revendication 7.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05405332A EP1719879B1 (fr) | 2005-05-03 | 2005-05-03 | Dispositif de protection en cas d'éclatement pour compresseur radial |
DE502005002724T DE502005002724D1 (de) | 2005-05-03 | 2005-05-03 | Berstschutzvorrichtung für Radialverdichter |
JP2006120710A JP2006312934A (ja) | 2005-05-03 | 2006-04-25 | ラジアル圧縮機のための破損保護装置 |
KR1020060039078A KR20060115338A (ko) | 2005-05-03 | 2006-04-29 | 방사형 압축기용 파열 보호 장치 |
CN2006100778475A CN1858408B (zh) | 2005-05-03 | 2006-05-08 | 用于离心式压缩机的破裂保护装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05405332A EP1719879B1 (fr) | 2005-05-03 | 2005-05-03 | Dispositif de protection en cas d'éclatement pour compresseur radial |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1719879A1 EP1719879A1 (fr) | 2006-11-08 |
EP1719879B1 true EP1719879B1 (fr) | 2008-01-30 |
Family
ID=35730393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05405332A Expired - Fee Related EP1719879B1 (fr) | 2005-05-03 | 2005-05-03 | Dispositif de protection en cas d'éclatement pour compresseur radial |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1719879B1 (fr) |
JP (1) | JP2006312934A (fr) |
KR (1) | KR20060115338A (fr) |
CN (1) | CN1858408B (fr) |
DE (1) | DE502005002724D1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2914362B1 (fr) * | 2007-03-30 | 2012-07-27 | Airbus France | Dispositif de deviation et de retention de debris de moteur d'aeronef. |
DE102007055615A1 (de) * | 2007-11-20 | 2009-05-28 | Mann + Hummel Gmbh | Gehäuse für einen Radialverdichter |
EP2216516A1 (fr) * | 2009-02-04 | 2010-08-11 | ABB Turbo Systems AG | Dispositif de protection contre l'éclatement d'un compresseur radial |
DE102009035575A1 (de) * | 2009-07-31 | 2011-03-03 | Man Diesel & Turbo Se | Radialkompressor und Verfahren zum Herstellen eines Radialkompressors |
US9546563B2 (en) | 2012-04-05 | 2017-01-17 | General Electric Company | Axial turbine with containment shroud |
DE102014106415A1 (de) * | 2014-05-08 | 2015-11-12 | Abb Turbo Systems Ag | Verdichtergehäuse |
CN104454146A (zh) * | 2014-10-27 | 2015-03-25 | 中国北车集团大连机车研究所有限公司 | 涡轮增压器轴流涡轮断裂的防护装置 |
DE102015014550A1 (de) * | 2015-11-11 | 2017-05-11 | Man Diesel & Turbo Se | Ansaugsystem für einen Abgasturbolader und Abgasturbolader |
DE102016111081A1 (de) * | 2016-06-17 | 2017-12-21 | Man Diesel & Turbo Se | Strömungsmaschine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19640654A1 (de) * | 1996-10-02 | 1998-04-09 | Asea Brown Boveri | Berstschutzvorrichtung für Radialturbinen von Turboladern |
DE10050931C5 (de) * | 2000-10-13 | 2007-03-29 | Man Diesel Se | Turbomaschine mit radial durchströmten Laufrad |
TW576886B (en) * | 2001-05-04 | 2004-02-21 | Abb Turbo Systems Ag | Turbocharger having a radial-flow compressor and burst-protection arrangement for a radial-flow compressor of a turbocharger |
EP1586745B1 (fr) * | 2004-04-13 | 2015-07-29 | ABB Turbo Systems AG | Carter de compresseur |
-
2005
- 2005-05-03 EP EP05405332A patent/EP1719879B1/fr not_active Expired - Fee Related
- 2005-05-03 DE DE502005002724T patent/DE502005002724D1/de active Active
-
2006
- 2006-04-25 JP JP2006120710A patent/JP2006312934A/ja not_active Withdrawn
- 2006-04-29 KR KR1020060039078A patent/KR20060115338A/ko not_active Application Discontinuation
- 2006-05-08 CN CN2006100778475A patent/CN1858408B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE502005002724D1 (de) | 2008-03-20 |
EP1719879A1 (fr) | 2006-11-08 |
JP2006312934A (ja) | 2006-11-16 |
KR20060115338A (ko) | 2006-11-08 |
CN1858408A (zh) | 2006-11-08 |
CN1858408B (zh) | 2010-12-08 |
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