• 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:
    The invention relates to a turbocharger with a housing (1) and at least one stator, at least the housing (1) and / or the stator having an inner housing component (3) and an outer housing component (4) which is connected directly to an inner section (41) rests against a jacket section (31) of the inner housing component (3) and envelops, has or has the jacket section (31), the respective jacket section (31) and the respective inner section (41) being designed such that they together form a form-fitting connection form which fix the respective inner housing component (3) and the respective outer housing component (4) against a relative change in position to one another along a longitudinal axis of the turbocharger and / or against rotation about this longitudinal axis, and wherein the respective inner housing component (3) and / or the respective outer housing component (4) is at least partially produced by means of additive manufacturing. The invention further comprises a method for producing such a turbocharger.
    公开号:CH716013A2
    申请号:CH00221/20
    申请日:2020-02-24
    公开日:2020-09-30
    发明作者:Rost Stefan；Spengler Sebastian；Thaser Boris；Uhlenbrock Santiago；Weihard Stefan；Wurm Claudius
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    The invention relates to a turbocharger with an integrated position securing of a housing and a method for producing such a turbocharger.
    [0002] High forces act on components of an exhaust gas turbocharger, for example because of rotating components. To secure the housing and stator components of turbochargers against rotation and axial displacement, additional components and connecting elements, such as e.g. Dowel pins or screws required. Due to the additional components, the number of parts increases considerably, which leads to complex assembly and high material costs.
    It is therefore the object of the present invention to provide a turbocharger with an integrated positional securing of a housing and a method for producing such a turbocharger which reduces the assembly effort and the number of parts.
    [0004] This object is achieved by the combination of features according to patent claim 1.
    According to the invention, a turbocharger with a housing and at least one stator is proposed. The housing and / or the stator comprises or comprise an inner housing component and an outer housing component, the inner section of which rests directly against a jacket section of the inner housing component and envelops the jacket section. The respective casing section and the respective inner section are designed in such a way that they together form a form-fitting connection which fixes the respective inner housing component and the respective outer housing component against a relative change in position to one another along a longitudinal axis of the turbocharger and / or against a rotation about this longitudinal axis. Furthermore, the respective inner housing component and / or the respective outer housing component is at least partially produced by means of additive manufacturing. Through the use of additive manufacturing processes, such as a 3D printing process, the position lock can be integrated directly into the components. The advantage of this is, for example, that the number of components is reduced and, as a result, the weight of the turbocharger and the manufacturing costs are also reduced. In addition, assembly errors can be avoided through a clear form fit. Overall, the assembly and maintenance effort is optimized due to lighter and / or segmented components. The form fit also improves containment security and thus the product security of the turbocharger.
    [0006] The turbocharger is preferably designed such that the jacket section of an inner housing component and / or the inner section of an outer housing component are or have been produced entirely by means of additive manufacturing. This is particularly favorable since the forces against which a position securing device is used act on the jacket sections of the two housing components. In this way, the position securing can be precisely adapted to the requirements of the respective turbocharger.
    In an advantageous embodiment it is provided that the jacket section has at least one positioning element which protrudes from the jacket section. In addition, the inner section comprises at least one recess which is designed in accordance with the positioning element, so that these together form a form-fitting connection. In one embodiment of the invention it is provided that the positioning element is designed as a positioning nose and the recess is designed as a groove. Furthermore, an embodiment is favorable in which the positioning elements are designed as at least one wedge and the depressions are designed as at least one wedge hub. In a further advantageous variant, it is provided according to the invention that the positioning element is configured as a wave-shaped wedge and the recess is configured as a wave-shaped wedge hub, partially or completely.
    By integrating positioning elements in the housing components, these can be fixed relative to one another in a circumferential direction. Additional connecting elements such as dowel pins or screws can thus be omitted or are no longer necessary. Due to the shape and arrangement of the individual positioning elements, in addition to securing the position, an exact and unambiguous alignment of the housing components can also be specified, whereby errors during assembly can be avoided.
    The turbocharger according to the invention is designed in one embodiment that a plug-and-turn lock or a bayonet lock is integrated into the jacket section and the inner section, which creates a positive connection between the inner housing component and the outer housing component. By integrating positioning elements into the housing components, these can be fixed relative to one another in a longitudinal direction. Furthermore, the above-described measures for securing the position can have positive effects on the containment safety, for example in the event of a blade loss or a rotor burst. In this way, the load on screws of a containment-relevant flange connection on shear can be prevented by the torsional forces resulting from the damage being transmitted directly via the form fit of the components.
    It is further advantageous if the inner housing component and / or the outer housing component is or are segmented and, in a further development of the present turbocharger, it is provided that cavities are integrated into the inner housing component and / or the outer housing component. With a division of the components into segments and / or the targeted introduction of cavities, the assembly and maintenance costs can be reduced, particularly in the case of large turbochargers, due to the resulting lower individual weight. The segmentation or introduction of cavities can be combined with the measures described above.
    In a preferred embodiment of the invention, crash elements or a honeycomb structure for absorbing potential or kinetic energy of components in the event of component failure are integrated into the inner housing component and / or the outer housing component. This has the advantage that the crash elements or the honeycomb structure are integrated directly into the safety-relevant components. In this way, the crash elements or the honeycomb structure reduce the kinetic energy of the rotor fragments emitted in the event of damage when they hit the housing structure through targeted deformation. This prevents failing components from leaking out of the turbocharger housing.
    According to the invention, a method for producing a turbocharger described above is also proposed, in which the inner housing component and / or the outer housing component are at least partially or completely manufactured by means of additive manufacturing, in particular by means of a 3D printing process. By means of additive manufacturing, the inner housing component and the outer housing component can be precisely adapted to the requirements of optimum position securing. Therefore the assembly effort, the weight and the costs of the turbocharger can be reduced and at the same time sufficient containment security is guaranteed.
    In a preferred embodiment of the method, the jacket section and / or the inner section are manufactured entirely by means of additive manufacturing, in particular by means of a 3D printing process. What is particularly beneficial about this is that the forces against which a position securing device is used act on the jacket sections of the two housing components. The position securing can thus be precisely adapted to the requirements of the respective turbocharger.
    [0014] Other advantageous developments of the invention are characterized in the subclaims or are shown in more detail below together with the description of the preferred embodiment of the invention with reference to the figures. Show it:<tb> Fig. 1 <SEP> a sectional view of a turbocharger housing with a positioning nose,<tb> Fig. 2 <SEP> a sectional view of a turbocharger housing with a spline seat,<tb> Fig. 3 <SEP> a sectional view of a turbocharger housing with a bayonet lock,<tb> Fig. 4 <SEP> a sectional view of a segmented turbocharger housing with a spline seat and<tb> Fig. 5 <SEP> a sectional view of a turbocharger housing with integrated crash elements.
    In Figure 1 is a sectional view of a housing 1 of a turbocharger with a positioning lug 51 is shown. The housing 1 comprises an inner housing component 3 and an outer housing component 4, which with an inner section 41 rests directly against a jacket section 31 of the inner housing component 3 and envelops the jacket section 31. The jacket section 31 and the inner section 41 are completely manufactured by means of additive manufacturing. By means of this manufacturing method, the positioning nose 51 is formed on the jacket section, which protrudes from the jacket section 31. A depression is formed as a groove 61 on the inner section 41, corresponding to the positioning lug 51. Consequently, the jacket section 31 and the inner section 41 together form a form-fitting connection which fixes the inner housing component 3 and the outer housing component 4 against a relative change in position to one another against rotation about a longitudinal axis.
    Figure 2 shows a sectional view of a housing 1 of a turbocharger corresponding to Figure 1 with an alternative positioning element. The positioning elements are designed as four wedges 52 and the depressions as four wedge hubs 62. The wedges 52 and the wedge hubs 62 are evenly distributed over the circumference, the lower wedge 52 in the view of FIG. 2 being designed with a smaller width.
    A sectional view of a turbocharger housing 1 with a bayonet lock 8 is shown in FIG. The bayonet catch 8 is integrated into the jacket section 31 and the inner section 41 and creates a form-fitting connection between the inner housing component 3 and the outer housing component 4. As a result, they together form a form-fitting connection which fixes the inner housing component 3 and the outer housing component 4 against a relative change in position to one another along a longitudinal axis of the turbocharger.
    FIG. 4 shows a sectional view of a housing 1 of a turbocharger corresponding to FIG. 1 with a further alternative positioning element. The jacket section 31 of the inner housing component 3 is designed as a wave-shaped wedge 53 or a wave-shaped wedge arrangement and the inner section 63 as a wave-shaped wedge hub 63. Both the wave-shaped wedge 53 and the wave-shaped wedge hub 63 extend over the full circumference around the jacket section 31 or the inner section 41. In addition, the inner housing component 3 is segmented.
    In FIG. 5, a sectional view of a turbocharger housing 1 with crash elements 9 is shown. The energy-absorbing crash elements 9 are integrated into the inner housing component 3 for absorbing, in particular, kinetic energy of components in the event of component failure. In this case, the position is secured with a wave-shaped wedge 53 and a wave-shaped wedge hub 63.
    List of reference symbols
    1 housing 3 inner housing component 31 shell section 4 outer housing component 41 inner section 51 positioning nose 52 wedge 53 wave-shaped wedge 61 groove 62 spline hub 63 wave-shaped spline hub 8 bayonet lock 9 crash element
    权利要求:
    Claims (12)
    [1]
    1. Turbocharger with a housing (1) and at least one stator, at least the housing (1) and / or the stator having an inner housing component (3) and an outer housing component (4), which is directly connected to an inner section (41) The jacket section (31) of the inner housing component (3) rests and encloses, has or has the jacket section (31), the respective jacket section (31) and the respective inner section (41) being designed in such a way that they together form a form-fitting connection, which fixes the respective inner housing component (3) and the respective outer housing component (4) against a relative change in position to one another along a longitudinal axis of the turbocharger and / or against rotation about this longitudinal axis, and the respective inner housing component (3) and / or the respective outer housing component (4) is at least partially produced by means of additive manufacturing.
    [2]
    2. Turbocharger according to claim 1, characterized in that the jacket section (31) of an inner housing component (3) and / or the inner section (41) of an outer housing component (4) is or has been produced entirely by means of additive manufacturing.
    [3]
    3. Turbocharger according to claim 1 or 2, characterized in that the jacket section (31) has at least one positioning element which protrudes from the jacket section (31), and the inner section (41) has at least one recess which is formed in accordance with the positioning element, so that these together form a form-fitting connection.
    [4]
    4. Turbocharger according to claim 3, characterized in that the positioning element is designed as a positioning lug (51) and the recess is designed as a groove (61).
    [5]
    5. Turbocharger according to claim 3, characterized in that the positioning elements are designed as at least one wedge (52) and the depressions are designed as at least one wedge hub (62).
    [6]
    6. Turbocharger according to claim 3, characterized in that the positioning element is designed as a wave-shaped wedge (53) and the recess as a wave-shaped splined hub (63) partially or fully.
    [7]
    7. Turbocharger according to one of the preceding claims, characterized in that a plug-and-turn lock or a bayonet lock (8) is integrated in the jacket section (31) and the inner section (41), which forms a positive connection between the inner housing component (3) and the outer housing component (4).
    [8]
    8. Turbocharger according to one of the preceding claims, characterized in that the inner housing component (3) and / or the outer housing component (4) is segmented.
    [9]
    9. Turbocharger according to one of the preceding claims, characterized in that cavities are integrated in the inner housing component (3) and / or the outer housing component (4).
    [10]
    10. Turbocharger according to one of the preceding claims, characterized in that in the inner housing component (3) and / or the outer housing component (4) crash elements are integrated, preferably in a honeycomb structure (9) for absorbing kinetic energy of components in the event of component failure.
    [11]
    11. The method for producing a turbocharger according to one of the preceding claims, characterized in that the inner housing component (3) and / or the outer housing component (4) is at least partially manufactured by means of additive manufacturing, in particular by means of a 3D printing process.
    [12]
    12. The method for producing a turbocharger according to one of the preceding claims, characterized in that the jacket section (31) and / or the inner section (41) are produced entirely by means of additive manufacturing, in particular by means of a 3D printing process.
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN102066715A|2008-07-02|2011-05-18|博格华纳公司|Bearing housing body group of an exhaust-gas turbocharger|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102019107093.7A|DE102019107093A1|2019-03-20|2019-03-20|Securing the position of an exhaust turbocharger housing|
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