• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A turbocharger having a turbine for relaxing a first medium, said turbine having a turbine housing and a turbine rotor, with a compressor for compressing a second medium using energy recovered in the turbine upon expansion of the first medium, the compressor comprising a compressor housing and a turbine with the turbine rotor coupled via a shaft compressor rotor, wherein the turbine housing and the compressor housing are each connected to a bearing housing arranged therebetween, in which the shaft is mounted, with a turbine housing (4) and / or the compressor housing and / or the Bearing housing at least partially surrounding housing (18), which is at least formed of a first housing portion (20) and a second housing portion (21), which are connected to each other via screw (22). Shear force receiving elements (23) are formed or secured to the first housing portion (20) and extend through the second housing portion (21) to absorb shear forces in the event of shear forces, thus relieving the screw joints (22) of shear forces.
    公开号:CH714205A2
    申请号:CH01068/18
    申请日:2018-09-07
    公开日:2019-03-29
    发明作者:Braun Steffen；Griesshaber Frank；Hort Vladimir
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    Description: The invention relates to a turbocharger.
    The basic structure of a turbocharger is known to those skilled in the art. A turbocharger has a turbine in which a first medium is expanded. Furthermore, a turbocharger has a compressor in which a second medium is compressed, using the energy obtained in the turbine when the first medium is expanded. The turbine of the turbocharger has a turbine housing and a turbine rotor. The turbocharger's compressor has a compressor housing and a compressor rotor. A bearing housing is positioned between the turbine housing of the turbine and the compressor housing of the compressor, the bearing housing being connected on the one hand to the turbine housing and on the other hand to the compressor housing. A shaft is mounted in the bearing housing, via which the turbine rotor is coupled to the compressor rotor.
    In the operation of a turbocharger, there is a risk that a rotor, for example the turbine rotor or the compressor rotor, of the turbocharger breaks and fragments of the rotor break through the corresponding housing, that is to say the turbine housing or the compressor housing. There is then a risk that the fragments of the turbocharger get into the environment. In order to take account of this problem of the bursting of a rotor of the turbocharger, the respective housing in turbochargers known from practice is designed such that a damage to the respective housing is not to be expected and even if the respective rotor breaks, fragments thereof do not penetrate the respective housing can. However, this increases the weight of the turbocharger.
    In order not to increase the weight of a turbocharger as a result of a burst protection and, on the other hand, to be able to retrofit existing older exhaust gas turbochargers accordingly, it is known from DE 10 2013 013 571 A1 to compress the compressor housing and / or the turbine housing of the turbocharger at least in sections with one Wrapping ring mesh, which retains fragments in the event of damage and thus increases the containment safety of a turbocharger.
    Furthermore, it is already known from practice to provide the burst protection and thus the containment protection via a housing which at least in sections surrounds the turbine housing and / or the compressor housing and / or the bearing housing, such a housing being formed from a plurality of housing sections, which are connected to each other via screw connections. If, in the event of damage, fragments of a rotor of the turbocharger hit the housing, there is a risk that the bolted connections will be subjected to shear forces as a result of the bursting forces, which can then lead to failure of the bolted connections. There is a need to increase the containment safety of a turbocharger which has a plurality of housing sections which are connected to one another via screw connections in order to provide burst protection and thus containment security.
    Proceeding from this, the invention has for its object to provide a novel turbocharger. This object is achieved by a turbocharger according to claim 1. Shear force receiving elements are formed or fastened on the first housing section, which extend through the second housing section and absorb the shear forces in the event of the occurrence of shear forces and thus relieve the screw connections of the shear forces. In the event of a burst, shear forces can be safely absorbed via the shear force absorption elements and the screw connections can thus be relieved. There is no danger that the screw connections will fail due to shear forces. As a result, the burst protection and thus the containment security can be increased.
    [0007] The shear force absorption elements are preferably arranged adjacent to the screw connections. The shear force absorption elements can be arranged laterally next to a screw connection or around the screw connection. The burst protection or containment security can hereby be increased particularly advantageously.
    Preferably, the shear force absorbing elements are welded to the first housing section and each extend through a recess in the second housing section. Alternatively, the respective shear force absorption element is designed as an elevation, in particular as a deep-drawn or embossed crest, of the housing section and extends through a recess in the second housing section. These features also serve to effectively absorb shear forces and thus relieve the screw connections from shear stress.
    The shear force elements are preferably used on the housing of a turbocharger. However, the shear force absorption elements can also be used on other elements of a turbocharger to be connected, e.g. for connecting a first stator-side element of the turbocharger to a second stator-side element of the turbocharger and / or for connecting a first rotor-side element of the turbocharger to a second rotor-side element of the turbocharger. This is defined in claim 10.
    Preferred further developments of the invention result from the dependent claims and the following description. Exemplary embodiments of the invention are explained in more detail with reference to the drawing, without being restricted to this. It shows:
    1 shows a cross section through a turbocharger,
    Fig. 2 shows a detail of a turbocharger according to the invention.
    CH 714 205 A2 The invention relates to a turbocharger.
    1 shows the basic structure of a turbocharger 1. A turbocharger 1 has a turbine 2 for expanding a first medium, in particular for expanding exhaust gas from an internal combustion engine. Furthermore, a turbocharger 1 has a compressor 3 for compressing a second medium, in particular charge air, using energy obtained in the turbine 2 when the first medium is expanded.
    The turbine 2 has a turbine housing 4 and a turbine rotor 5. The compressor 3 has a compressor housing 6 and a compressor rotor 7. The compressor rotor 7 is coupled to the turbine rotor 5 via a shaft 8 which is mounted in a bearing housing 9 , wherein the bearing housing 9 is positioned between the turbine housing 4 and the compressor housing 6 and is connected to both the turbine housing 4 and the compressor housing 6. 1 also shows a silencer 10 on the compressor side.
    The turbine housing 4 of the turbine 2 comprises an inflow housing 11 and an outflow housing 12. The first medium to be relaxed in the region of the turbine 2 can be supplied to the turbine rotor 5 via the inflow housing 11. In the region of the turbine rotor 5, relaxed first medium flows away from the turbine 2 via the outflow housing 12.
    The turbine housing 4 comprises, in addition to the inflow housing 11 and the outflow housing 12, an insert 13, the insert 13 running in particular in the region of the inflow housing 11, namely adjacent to the turbine rotor 5, radially outside adjacent to blades 14 of the turbine rotor 5.
    The turbine housing 4 further comprises a nozzle ring 15. The nozzle ring 15 is also referred to as a turbine nozzle.
    1 shows a sealing cover 16 in the connection area between the inflow housing 11 and the bearing housing 9. The sealing cover 16 is also referred to as the bearing housing cover or heat shield.
    The inflow housing 11 of the turbine 2 is connected to the bearing housing 9 via a fastening device 17, which is preferably designed as a clamping claw. In this connection area between the bearing housing 9 and the inflow housing 11 of the turbine, a radially outer section of the sealing cover 15 is clamped. The nozzle ring is preferably also clamped with a section in this connection area.
    In the operation of such a turbocharger 1, damage may occur in the area of the turbine rotor 5 or the compressor rotor 7. Fragments can then detach from the respective rotor 5 or 7 and hit the respective housing 4 or 6, as a result of which the housing 4 or 6 is subject to damage. For example, if the turbine rotor 5 breaks, fragments of it may get onto the inflow housing 11 of the turbine housing 4 and break through the same. It is therefore necessary to provide an appropriate burst protection to increase the so-called containment security.
    Fig. 2 shows a partial cross section through a turbocharger 1 according to the invention in the region of an inflow housing 11 of the turbine housing 4 of the turbocharger, wherein the turbine housing 4, namely the inflow housing 11 of the same, according to FIG. 2 is at least partially surrounded by a housing 18.
    In the exemplary embodiment shown, the housing 18 consists of a plurality of housing sections 19, 20 and 21 which are connected to one another via screw connections 22. The screw connections 22 thus extend through recesses in the housing sections 19, 20 and 21 in order to connect them to one another.
    For the purposes of the present invention, at least one shear force absorbing element 23 is formed on the housing section 20 or fastened to the same. The shear force absorbing elements 23 which are formed or fastened on the housing section 20 extend through the adjacent housing section 21 and, particularly in the event of a burst, that is to say when bursting forces 26 cause 20 shear forces 27 on the housing sections, the shear forces and thus relieve the screw connections 22 of the Shear forces.
    Shear forces occurring are accordingly absorbed by the shear force absorbing elements 23, they do not have to be absorbed by the screw connections 22, so that there is then no risk that the screw elements 22 fail in the event of damage or bursting due to shear forces.
    2, the shear force absorbing elements 23 are arranged adjacent to the screw connections 22. In this case, a shear force absorption element 23 is arranged in the region of each screw connection 22, specifically to the side of the respective screw connection in FIG. 2.
    The respective shear force-absorbing element 23 is annular in the exemplary embodiment shown and welded to the housing section 20 to form a weld seam 24. The respective shear force absorption element 23 can be circular, oval or angularly contoured.
    The respective shear force absorbing element 23 extends through a recess 25 in the adjacent housing section 21. If shear forces 27 occur, the shear force absorbing elements 23 absorb these shear forces.
    CH 714 205 A2 In the exemplary embodiment shown in FIG. 2, three housing sections 19, 20 and 21 are present, the shear force absorption elements 23 being fastened to the housing section 20 and extending through recesses 25 in the housing section 21. In contrast to this, it is also possible for the shear force absorbing elements 23 to be formed on the housing section 19 and to extend through recesses in the housing section 20 through recesses in the housing section 21.
    Furthermore, it is possible that only two housing sections are present, for example the housing sections 19 and 20, in which case the shear force-absorbing elements 23 are connected to the housing section 19 by welding and extend through recesses in the housing section 20.
    In the exemplary embodiment shown, the shear force absorption elements 23 are positioned laterally next to the screw connections 22. In contrast to this, it is also possible for the annular shear force receiving elements 23 to extend around the screw connections 22, the screw connections 22 then extending through a central recess in the shear force receiving element 23.
    With the present invention, effective burst protection and thus effective containment security can be provided on a turbocharger with a housing. There is no risk that screw connections that connect the housing sections to one another will fail due to shear forces.
    Rather, the shear forces are absorbed by the shear force absorbing elements 23, which are connected to a housing section, in particular by welding, and extend through recesses in an adjacent housing section.
    The shear force absorbing elements 23 and the screw connections 22 can be designed or dimensioned with regard to their function. The shear force absorption elements 23 are dimensioned or designed with a view to absorbing shear forces. The screw connections 22, on the other hand, which are not exposed to shear forces, can be designed for their connection function and thus for the absorption of tensile and compressive forces.
    The shear force-absorbing elements 23 can also be formed as elevations or crests of the housing section 20, which are formed, in particular, deep-drawn or embossed, and which extend through a respective recess in the housing section 21.
    [0034] The shear force absorption elements 23 are preferably used on the housing of a turbocharger. However, the shear force absorption elements 23 can also be used on other components of a turbocharger to be connected, for example for connecting a first stator-side element of the turbocharger to a second stator-side element of the turbocharger and / or for connecting a first rotor-side element of the turbocharger to a second rotor-side element of the turbocharger. Reference can be made to the above explanations.
    Reference symbol list [0035]
    turbocharger
    turbine
    compressor
    Turbine casing
    Turbine rotor
    Compressor housing
    Compressor rotor
    wave
    Bearing housing
    Silencer
    Inflow housing
    Outlet housing
    Insert
    Blade
    CH 714 205 A2
    Nozzle ring
    Sealing cover
    Fastening device
    Enclosure
    Housing section
    Housing section
    Housing section
    Screw connection
    Shear force element
    Weld
    Recess
    Bursting force
    Shear force
    权利要求:
    Claims (11)
    [1]
    Claims
    1. Turbocharger (1), with a turbine (2) for expanding a first medium, the turbine (2) having a turbine housing (4) and a turbine rotor (5), with a compressor (3) for compressing a second medium Use of energy obtained in the turbine (2) when the first medium relaxes, the compressor (3) having a compressor housing (6) and a compressor rotor (7) coupled to the turbine rotor (5) via a shaft (8), the Turbine housing (4) and the compressor housing (6) are each connected to a bearing housing (9) arranged between them, in which the shaft (8) is mounted, with one of the turbine housing (4) and / or the compressor housing (6) and / or the housing (9) at least in sections surrounding the housing (18), which is formed at least from a first housing section (20) and a second housing section (21) which are connected to one another via screw connections (22) characterized in that shear force receiving elements (23) are formed or fastened on the first housing section (20), which extend through the second housing section (21) and absorb the shear forces in the event of the occurrence of shear forces and thus relieve the screw connections (22) of the shear forces .
    [2]
    2. Turbocharger according to claim 1, characterized in that the shear force absorption elements (23) are arranged adjacent to the screw connections (22).
    [3]
    3. Turbocharger according to claim 2, characterized in that a shear force receiving element (23) is arranged in the region of each screw connection (22).
    [4]
    4. Turbocharger according to one of claims 1 to 3, characterized in that the respective shear force absorbing element (23) is arranged laterally next to a screw connection (22).
    [5]
    5. Turbocharger according to one of claims 1 to 4, characterized in that the respective shear force absorbing element (23) is arranged around a screw connection (22).
    [6]
    6. Turbocharger according to one of claims 1 to 5, characterized in that the respective shear force absorbing element (23) is annular.
    [7]
    7. Turbocharger according to one of claims 1 to 5, characterized in that the respective shear force absorbing element (23) is circular or oval or angularly contoured.
    [8]
    8. Turbocharger according to one of claims 1 to 7, characterized in that the respective shear force absorbing element (23) is welded to the first housing section (20) and extends through a recess (25) in the second housing section (21).
    [9]
    9. Turbocharger according to one of claims 1 to 7, characterized in that the respective shear force absorbing element (23) is designed as an elevation of the housing section (20) and extends through a recess (25) in the second housing section (21).
    CH 714 205 A2
    [10]
    10. Turbocharger (1), with a turbine (2) for expanding a first medium, the turbine (2) having a turbine housing (4) and a turbine rotor (5) with a compressor (3) for compressing a second medium Use of energy obtained in the turbine (2) when the first medium relaxes, the compressor (3) having a compressor housing (6) and a compressor rotor (7) coupled to the turbine rotor (5) via a shaft (8), the Turbine housing (4) and the compressor housing (6) are each connected to a bearing housing (9) arranged between them, in which the shaft (8) is mounted, a first stator-side element of the turbocharger being connected to a second stator-side element of the turbocharger and / or a first rotor-side element of the turbocharger is connected to a second rotor-side element of the turbocharger via screw connections (22), characterized in that shear forces are absorbed on the first element (20) Tame elements (23) are formed or fastened, which extend through the second element (20) and absorb the shear forces in the event of the occurrence of shear forces and thus relieve the screw connections (22) of the shear forces.
    [11]
    11. Turbocharger according to claim 10, characterized by shear force absorption elements (23) according to one of claims 2 to 9.
    类似技术:
    公开号 | 公开日 | 专利标题
    CH714205A2|2019-03-29|Turbocharger.
    DE102007042767A1|2009-03-12|Multilayer shielding ring for a propulsion system
    EP0834646A1|1998-04-08|Containment device for the radial turbine of a turbocharger
    DE69918427T2|2004-11-18|RESTRAINT SYSTEM FOR SHOVEL BLADE FRAGMENTS
    DE69918162T2|2004-10-14|Rupture protection device for radial turbines
    EP1383987A1|2004-01-28|Burst protection device for radial compressors pertaining to turbochargers
    DE19618313B4|2005-07-21|Axial turbine of an exhaust gas turbocharger
    CH713506A2|2018-08-31|Turbocharger.
    EP2655805B1|2020-09-09|Burst protection in the compressor housing of an exhaust gas turbocharger
    DE102004018987B4|2006-03-02|Protective device against bursting turbochargers comprises an endless looped belt of textile fiber material which has a high penetration resistance, and covers at least a part of the turbocharger circumference
    CH714160B1|2022-01-31|Casing for a turbocharger and turbocharger.
    DE202014002981U1|2014-04-16|Axial turbine for an exhaust gas turbocharger
    EP1260677B1|2006-06-28|Axial turbine with containment
    CH714390A2|2019-05-31|Turbine and turbocharger.
    CH714847A2|2019-09-30|Formwork of a turbocharger and turbocharger.
    EP2090755A1|2009-08-19|Turboloader housing
    CH714607A2|2019-07-31|Formwork of a turbocharger and turbocharger.
    EP0891471A1|1999-01-20|Thrust-compensating process and device for turbomachines
    DE102010037048A1|2011-03-03|Interstage seal ring
    DE102015014550A1|2017-05-11|Intake system for an exhaust gas turbocharger and turbocharger
    DE60002781T2|2004-03-18|Hub-axis connection
    DE102018102704A1|2019-08-08|centrifugal compressors
    DE102014012123A1|2016-02-18|turbocharger
    DE102015014030A1|2017-05-04|Exhaust gas turbocharger and support structure for an exhaust gas turbocharger
    CH714157A2|2019-03-15|Turbocharger.
    同族专利:
    公开号 | 公开日
    DE102017122230A1|2019-03-28|
    US11041407B2|2021-06-22|
    JP2019060342A|2019-04-18|
    US20190093515A1|2019-03-28|
    CN109555567A|2019-04-02|
    KR20190035531A|2019-04-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE10220573C1|2002-05-08|2003-07-03|Mtu Friedrichshafen Gmbh|IC engine exhaust gas turbocharger has rupture protection enclosing dangerous section of turbocharger housing|
    GB0321056D0|2003-09-09|2003-10-08|Rolls Royce Plc|Joint arrangement|
    DE102004018987B4|2004-04-20|2006-03-02|Mtu Friedrichshafen Gmbh|Protective device against bursting turbochargers comprises an endless looped belt of textile fiber material which has a high penetration resistance, and covers at least a part of the turbocharger circumference|
    DE102004028133C5|2004-06-09|2017-10-26|Man Diesel & Turbo Se|Turbomachine, in particular exhaust gas turbocharger|
    DE102009049841B4|2009-10-14|2015-01-15|Mtu Friedrichshafen Gmbh|Gas turbine engine and internal combustion engine|
    DE102013013571A1|2013-08-14|2015-02-19|Man Diesel & Turbo Se|turbocharger|
    WO2015140893A1|2014-03-17|2015-09-24|日立機材株式会社|Column structure|DE102017215539A1|2017-09-05|2019-03-07|Man Diesel & Turbo Se|turbocharger|
    DE102018100937A1|2018-01-17|2019-07-18|Man Energy Solutions Se|Formwork of a turbocharger and turbocharger|
    DE102018101066A1|2018-01-18|2019-07-18|Man Energy Solutions Se|Bursting device for a gas turbine machine|
    DE102019111899A1|2019-05-08|2020-11-12|Man Energy Solutions Se|Casing of a turbocharger and turbocharger|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017122230.8A|DE102017122230A1|2017-09-26|2017-09-26|turbocharger|
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