• 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, comprising a compressor for compressing a second medium using energy recovered in the turbine upon expansion of the first medium, wherein a turbine housing (1) of the turbine and a compressor housing of the compressor with one between them arranged bearing housing are connected to the turbine housing (1) and / or the compressor housing and / or the bearing housing radially outwardly and axially outside at least partially surrounding the casing (2), wherein in a cavity (3) between the casing (2) and the each case to be boarded housing (1) at least one loose fiber (4) of defined length is introduced.
    公开号:CH714610A2
    申请号:CH00026/19
    申请日:2019-01-10
    公开日:2019-07-31
    发明作者:Spatz Urban；Braun Steffen；Albrecht Daniel；Denkel Harald；Weihard Stefan；Haas Bernd；Niebuhr Johannes
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    Description: The invention relates to a casing of a turbocharger and 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 unnecessarily increase the weight of the turbocharger and also to protect turbochargers already used in the field from breakdown of fragments of a rotor into the environment, it is already known in practice to equip a turbocharger with a casing which surrounds a turbine housing and / or a compressor housing and / or a bearing housing of the turbocharger radially on the outside and axially on the outside at least in sections.
    Such formwork is not only used to provide burst protection. Such formwork can also be used for the thermal insulation of assemblies of the turbocharger.
    There is a need to improve the effect of a casing of a turbocharger to be clad at least in sections surrounding the cladding.
    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.
    According to the invention, at least one loose fiber of defined length is introduced into a cavity between the casing and the respective casing of the turbocharger to be casing. A fiber loosely inserted into the cavity between the turbocharger casing around the respective turbocharger casing to be clad can adapt optimally to the geometry of the casing to be clad and the cladding and thus optimally fill the cavity. In this way, good sound absorption and thermal insulation can be provided, and in the event of containment if an impeller bursts, high energy absorption can be provided.
    Preferably, the fiber or the respective fiber is designed as a glass fiber or as a silicate fiber. Glass fibers are suitable when the casing to be shuttered heats up to around 600 ° C. Silicate fibers are suitable when the casing to be shuttered heats up to around 1000 ° C.
    Preferably, the fiber or the respective fiber has a length of at least 100 m, preferably at least 200 m, particularly preferably at least 500 m, most preferably at least 1000 m. The or the respective fiber is preferably an endless fiber or a filament. Such long fibers allow an optimal filling of the cavity between the housing to be clad and the cladding. Most preferably, the or each fiber is designed as a continuous fiber or as a filament and has a length of at least 1000 m.
    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:
    Fig. 1 shows a schematic cross section through a turbocharger in the region of a housing of the turbocharger and a casing of the housing.
    The basic structure of a turbocharger is familiar to the expert addressed here. A turbocharger thus comprises a turbine for expanding a first medium, in particular for expanding exhaust gas, and a compressor for compressing a second medium, in particular for compressing charge air, using the energy obtained in the turbine when expanding the first medium.
    [0013] The turbine has a turbine rotor and a turbine housing. The compressor has a compressor rotor and a compressor housing. The turbine rotor and the compressor rotor are coupled via a shaft which is in one
    CH 714 610 A2
    Bearing housing of the turbocharger is mounted, the bearing housing being connected both to the turbine housing and to the compressor housing.
    If, for example, the turbine rotor or the compressor rotor breaks during operation, fragments of the same can break through the respective housing, that is to say the turbine housing or the compressor housing, and get into the environment. This must be avoided, for which it is known to equip a turbocharger with a casing which surrounds the turbine housing and / or the compressor housing and / or the bearing housing of the turbocharger.
    Preferably, in the area of the turbine housing and the compressor housing, a separate casing is used, which surrounds the respective casing of the turbocharger to be clad radially on the outside and axially on the outside at least in sections.
    Such formwork is used not only to provide burst protection. Such formwork can also be used for thermal insulation and sound insulation of assemblies of the turbocharger.
    Fig. 1 shows a schematic cross section through a turbocharger in the region of a turbine housing 1 and a casing 2 surrounding the turbine housing 1 at least in sections. The specific structure of the casing 2 is of no importance for the present invention. A cavity 3 is formed between the casing 1 to be clad, here the turbine inflow casing of the turbine of a turbocharger, and the cladding 2. According to the invention, at least one loose fiber 4 of defined length is introduced into this cavity 3.
    The or each fiber introduced into the cavity 3 is preferably designed as a glass fiber or silicate fiber.
    The or each fiber 4 introduced into the cavity 3 preferably has a length of at least 100 m, preferably a length of at least 200 m, particularly preferably a length of at least 500 m, most preferably a length of at least 1000 m , A single or a plurality of such fibers 4 can be introduced into the cavity 3 between the housing 1 to be clad and the cladding 2 of the turbocharger.
    Most preferably, the or each fiber 4 is designed as a continuous fiber or filament with a length of at least 1000 m.
    The respective fiber 4 is preferably blown into the cavity 3.
    Such a loose introduced into the cavity 3 fiber 4 can optimally adapt or conform to the geometry of the housing 1 to be shuttered and the shuttering 2. A high level of sound absorption and, in the case of containment, a high level of energy absorption can be provided. The thermal insulation can also be improved.
    Reference symbol list [0023]
    turbine housing
    casing
    cavity
    Fiber, continuous fiber
    权利要求:
    Claims (10)
    [1]
    claims
    1. Turbocharger, with a turbine for expanding a first medium, with a compressor for compressing a second medium using energy obtained in the turbine when expanding the first medium, wherein a turbine housing (1) of the turbine and a compressor housing of the compressor with a are connected between the same arranged bearing housings, with a casing (2) surrounding the turbine casing (1) and / or the compressor casing and / or the bearing casing radially outside and axially outside, characterized in that in a cavity (3) between the casing (2) and the respective casing to be shuttered (1), at least one loose fiber (4) of defined length is introduced.
    [2]
    2. Turbocharger according to claim 1, characterized in that the or the respective fiber (4) is designed as a glass fiber.
    [3]
    3. Turbocharger according to claim 1, characterized in that the or the respective fiber (4) is designed as a silicate fiber.
    CH 714 610 A2
    [4]
    4th
    Turbocharger according to one of the claims has a length of at least 100 m.
    to 3, characterized in that the or the respective fiber (4) a
    [5]
    5th
    Turbocharger according to one of the claims has a length of at least 200 m.
    to 3, characterized in that the or the respective fiber (4) a
    [6]
    6th
    Turbocharger according to one of the claims has a length of at least 500 m.
    to 3, characterized in that the or the respective fiber (4) a
    [7]
    7th
    Turbocharger according to one of claims 1 has a length of at least 1000 m.
    to 3, characterized in that the or the respective fiber (4) a
    [8]
    8. Turbocharger according to one of claims 1 to 7, characterized in that the or the respective fiber (4) is an endless fiber or a filament.
    [9]
    9. Turbocharger according to one of claims 1 to 8, characterized in that a single loose fiber (4) is introduced into the cavity (3) between the casing (2) and the respective casing (1) to be casing.
    [10]
    10. Turbocharger according to one of claims 1 to 8, characterized in that a plurality of loose fibers (4) are introduced into the cavity (3) between the casing (2) and the respective casing to be casing (1).
    类似技术:
    公开号 | 公开日 | 专利标题
    CH714610A2|2019-07-31|Turbocharger.
    EP0286815B1|1991-05-29|Containment ring for turbo machine casings
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    同族专利:
    公开号 | 公开日
    CN110080840A|2019-08-02|
    JP2019127944A|2019-08-01|
    DE102018101635A1|2019-07-25|
    KR20190090702A|2019-08-02|
    US20190226361A1|2019-07-25|
    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|
    DE10254859A1|2002-11-25|2004-06-03|Mann + Hummel Gmbh|turbocharger|
    EP1426557B1|2002-12-03|2013-07-17|BorgWarner, Inc.|Casing for turbo charger|
    US7478532B2|2005-11-07|2009-01-20|Honeywell International, Inc.|Turbocharger containment shield|
    DE102008031730A1|2008-07-04|2010-01-07|Daimler Ag|Bearing housing for exhaust gas turbo charger of internal-combustion engine, has bearing surface for mounting shaft, by which turbine wheel and compressor wheel are coupled with one another|
    EP2340364B1|2008-10-01|2015-10-21|Borgwarner Inc.|Exhaust flow insulator for an exhaust system device|
    DE102010048973A1|2010-10-20|2012-04-26|Isolite Gmbh|exhaust manifold|
    EP3034814B1|2014-12-15|2017-09-27|United Technologies Corporation|Liners for turbomachinery cases|
    DE102015209228A1|2015-05-20|2016-11-24|Mtu Friedrichshafen Gmbh|Housing for rotating elements, turbine, compressor, turbocharger with such a housing, and internal combustion engine with a turbine, a compressor or a turbocharger|
    DE102016209603A1|2016-06-01|2017-12-07|Bosch Mahle Turbo Systems Gmbh & Co. Kg|Internal combustion engine with two exhaust gas turbochargers|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|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102018101635.2A|DE102018101635A1|2018-01-25|2018-01-25|turbocharger|
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