• 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:
    Turbocharger (1) with a turbine for expanding a first medium, the turbine having a turbine rotor and a turbine housing made up of an inflow housing (11) and an outflow housing (12), with a compressor (3) for compressing a second medium using Energy obtained in the turbine when the first medium expands, the compressor (3) having a compressor rotor coupled to the turbine rotor via a shaft, a compressor housing (6) and an intake port or an insert piece (17), with a bearing housing (9), in which the shaft coupling the turbine rotor and the compressor rotor is mounted, with screw connections via which the inflow housing (11) and the outflow housing (12) of the turbine, the compressor housing (6) and the intake port (17), as well as the bearing housing (9) are connected to the turbine housing and the compressor housing (6). Screws (18, 23) on the turbine side and screws (21) on the compressor side are designed identically to form corresponding screw connections.
    公开号:CH714157B1
    申请号:CH00989/18
    申请日:2018-08-14
    公开日:2022-01-31
    发明作者:Löwlein Oswald
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    The invention relates to a turbocharger.
    A turbocharger has a turbine for expanding a first medium and a compressor for compressing a second medium. The turbocharger turbine has a turbine housing and a turbine rotor. The turbocharger compressor has a compressor housing and a compressor rotor. The turbine rotor and the compressor rotor are connected to one another via a shaft that is rotatably mounted in a bearing housing of the turbocharger. The turbocharger bearing housing is connected to both the turbine housing and the compressor housing. The turbine of a turbocharger can be designed as an axial turbine or as a radial turbine. Likewise, the compressor of a turbocharger can be designed as an axial compressor or as a radial compressor.
    The turbine housing of the turbine of a turbocharger has an inflow housing and an outflow housing. The inflow housing of the turbine housing and the outflow housing of the turbine housing of the turbine are connected to one another via screws.
    Then, when the turbine is designed as a radial turbine, the inflow housing of the turbine housing is arranged between the outflow housing of the turbine housing and the bearing housing, so that the bearing housing is then connected to the inflow housing of the turbine housing via additional screws.
    Then, when the turbine is designed as an axial turbine, the exhaust housing of the turbine housing is positioned between the bearing housing and the inflow housing of the turbine housing, so that the exhaust housing of the turbine housing is then connected to the bearing housing via screws.
    An intake manifold or an insert piece of the compressor is connected to the compressor housing via additional screws, air being sucked in from the compressor for compression via the intake manifold or the insert piece.
    It is also known to mount a turbocharger on a machine foundation or on an internal combustion engine using mounting feet. These mounting feet can be connected to the turbine housing and/or the bearing housing and/or the compressor housing via screws.
    In turbochargers known from practice, individually adapted screws are used in the area of each of the above screw connections. Since these screws are safety-relevant components that are intended to prevent components from escaping from the turbocharger in the event of damage, the screws used are so-called construction screws with increased requirements, complex tests and the like, which increases the costs of the turbocharger.
    Proceeding from this, the object of the invention is to create a new type of turbocharger.
    [0010] This object is achieved by a turbocharger according to claim 1. Screws on the turbine side and screws on the compressor side for the formation of corresponding screw connections are designed identically.
    With the present invention, it is proposed for the first time to use identical screws on a compressor and on a turbine of a turbocharger in order to form corresponding screw connections in the area of the compressor and the turbine. This increases the number of identical parts in the turbocharger. Corresponding screws can then be manufactured in larger quantities, which means that costs can be reduced.
    Preferably, bolts for connecting the turbine inflow casing and the turbine outflow casing and bolts for connecting the compressor casing and the intake manifold or the insert are of identical design. This is particularly preferred in order to use as large a number of identical screws as possible and to reduce costs.
    Screws for fastening the bearing housing to the turbine housing and/or screws for fastening the bearing housing to the compressor housing and/or screws for fastening mounting feet of the turbocharger to the turbine housing and/or bearing housing and/or compressor housing are also preferably designed identically. This allows the number of identical screws and thus the number of identical parts to be further increased. Costs can be further reduced.
    Preferred 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 limited thereto. 1 shows a cross section through a first turbocharger, FIG. 2 shows a schematic representation of a second turbocharger, FIG. 3 shows a detail of the turbocharger of FIG. 2; FIG. 4 shows a further detail of the turbocharger of FIG. 2; and FIG. 5 shows a further detail of the turbocharger of FIG.
    shows the basic structure of a first turbocharger 1. The 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 during the expansion of the first medium. 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, the Bearing housing 9 is positioned between the turbine housing 4 and the compressor housing 5 and is connected to both the turbine housing 4 and the compressor housing 5 . 1 also shows a compressor-side silencer 10.
    The turbine housing 4 of the turbine 2 comprises an inflow housing 11 and an outflow housing 12. The first medium to be expanded in the region of the turbine 2 can be supplied to the turbine rotor 5 via the inflow housing 11. The expanded first medium flows away from the turbine 2 via the outflow housing 12 in the area of the turbine rotor 5 .
    In addition to the inflow housing 11 and the outflow housing 12, the turbine housing 4 comprises an insert piece 13, the insert piece 13 running in particular in the area of the inflow housing 11, namely adjacent to the turbine rotor 5 radially on the outside adjacent to the rotor blades 14 of the turbine rotor 5. The turbine housing 4 also includes a nozzle ring 15. The nozzle ring 15 is also referred to as the turbine nozzle. 1 also shows a sealing cover 16 in the connection area of 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.
    1 also shows an intake manifold/insert 17 on the compressor side, via which the compressor 3 draws in air from the muffler 10 .
    In the turbocharger of FIG. 1, the turbine 2 is designed as a radial turbine. In this case, the inflow housing 11 of the turbine 2 is then positioned between the bearing housing 9 and the outflow housing 12 . It can be seen from FIG. 1 that the inflow housing 11 of the turbine 2 and the outflow housing 12 of the same are connected via screws 18 . The bearing housing 9 is connected to the inflow housing 11 of the turbine via screws 19, with the formation of a clamping claw connection. Furthermore, the bearing housing 9 is connected to the compressor housing 6 via screws 20, likewise forming a clamping claw connection. Furthermore, the intake manifold/insert 17 is connected to the compressor housing 6 via screws 21 .
    Another turbocharger 1 is shown in FIG. 2, with the turbocharger 1 of FIG. 2 having the turbine 2 as an axial turbine. In this case, the outflow housing 12 of the turbine housing 4 of the turbine 2 is then arranged between the bearing housing 9 and the inflow housing 11 . FIG. 2 shows screws 18 which serve to connect the inflow housing 11 and outflow housing 12 of the axial turbine 2 of FIG. 2 also shows screws 21 which are used to connect the compressor housing 6 to the intake manifold/insert 17 . The screws 19, 20, via which the bearing housing 9 is connected to the compressor housing 6 and the turbine housing 4, are not shown in FIG. However, FIG. 2 shows mounting feet 22, which are used to set up the turbocharger 1 of FIG. 2 on a machine foundation or on assemblies of an internal combustion engine. A mounting foot 22 on the turbine side is connected to the turbine housing 4 via screws 23, namely to the outflow housing 12 of the turbine housing 4.
    For the purposes of the present invention, turbine-side screws and compressor-side screws are designed identically to form corresponding screw connections.
    As a result, the number of identical screws and thus the number of identical parts on a turbocharger 1 can be increased. This can reduce costs.
    According to an advantageous development, the screws 18 for connecting the inflow housing 11 and outflow housing 12 of the turbine housing 4 of the turbine 2 and screws 21 for connecting the compressor housing 6 and the intake manifold 17 are identical. 3 and 5 show details of the screw connections using the screws 18 and 21, i.e. on the one hand a screw connection between the inflow housing 11 and the outflow housing 12 of the turbine housing 4 of the turbine 2 of the turbocharger 1 of FIG. 2 and on the other hand a screw connection using the screw 21 between compressor housing 6 and intake manifold/insert 17. These screws 18, 21 are identical. The same therefore have identical thread diameters, identical thread lengths and are made of identical materials. There are no differences between these screws 18, 21.
    Preferably, the screws 23, which are used to attach the mounting feet 22 to the outflow housing 12 of the turbine housing 4 of the turbine 2 of FIG. 2, are also designed identically to the screws 21 and 18. FIG the outflow housing 12 of the turbine housing 4 and the mounting feet 22 using the screws 23.
    According to an advantageous development, the screws 19, which are used to fasten the bearing housing 9 to the turbine housing 4, and the screws 20, which are used to connect the bearing housing 9 to the compressor housing 6, are designed identically to the screws 21, 18 and 23 A large number of identical screws can thus be used to form the screw connections on the turbocharger 1 . This increases the number of identical parts. costs are reduced.
    The identically designed screws are preferably designed as heat-resistant screws.
    It is therefore within the meaning of the present invention to use identical screws to form a wide variety of screw connections on a turbocharger 1, both to form screw connections in the area of the turbine 2 and to form screw connections in the area of the compressor 3.
    Reference List
    1 Turbocharger 2 Turbine 3 Compressor 4 Turbine housing 5 Turbine rotor 6 Compressor housing 7 Compressor rotor 8 Shaft 9 Bearing housing 10 Silencer 11 Inflow housing 12 Outflow housing 13 Insert 14 Rotor blade 15 Nozzle ring 16 Sealing cover 17 Intake connection/insert 18 Screw 19 Screw 20 Screw 21 Screw 22 Support foot 23 screw
    权利要求:
    Claims (6)
    [1]
    1. Turbocharger (1),with a turbine (2) for expanding a first medium, the turbine (2) having a turbine rotor (5) and a turbine housing (4) consisting of an inflow housing (11) and an outflow housing (12),with a compressor (3) for compressing a second medium using energy obtained in the turbine (2) when the first medium expands, the compressor (3) having a compressor rotor ( 7), a compressor housing (6) and an intake port or an insert piece (17),with a bearing housing (9) in which the shaft (8) coupling the turbine rotor (5) and the compressor rotor (7) is mounted,with screw connections via which the inflow housing (11) and the outflow housing (12) of the turbine, the compressor housing (6) and the intake connection or the insert piece (17), as well as the bearing housing (9) with the turbine housing (4) and the compressor housing ( 6) are connected,characterized in thatturbine-side screws (18, 19, 23) and compressor-side screws (20, 21) are designed identically to form corresponding screw connections.
    [2]
    2. Turbocharger according to claim 1, characterized in that screws (18) for connecting the inflow housing (11) of the turbine housing (4) and the outflow housing (12) of the turbine housing (4) and screws (21) for connecting the compressor housing (6) and of the intake manifold or the insert (17) are identical.
    [3]
    3. Turbocharger according to Claim 2, characterized in that, in addition, screws (23) for fastening mounting feet (22) to the turbine housing (4) and/or bearing housing (9) and/or compressor housing (6) are designed identically to the screws (18) for connecting the inflow casing (11) of the turbine casing (4) and the discharge casing (12) of the turbine casing (4) and like the bolts (21) for connecting the compressor casing (6) and the intake manifold or insert (17).
    [4]
    4. Turbocharger according to Claim 2 or 3, characterized in that the screws (19) for fastening the bearing housing (9) to the turbine housing (4) are designed identically to the screws (18) for connecting the inflow housing (11) of the turbine housing (4). and the discharge casing (12) of the turbine casing (4) and like the bolts (21) for connecting the compressor casing (6) and the intake manifold or insert (17).
    [5]
    5. Turbocharger according to one of Claims 2 to 4, characterized in that the screws (20) for fastening the bearing housing (9) to the compressor housing (6) are designed identically to the screws (18) for connecting the inflow housing (11) of the turbine housing ( 4) and the discharge casing (12) of the turbine casing (4) and how the bolts (21) connect the compressor casing (6) and the intake manifold or insert (17).
    [6]
    6. Turbocharger according to one of Claims 1 to 5, characterized in that identically designed screws (18, 19, 20, 21, 23) are designed as heat-resistant screws.
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    同族专利:
    公开号 | 公开日
    KR20190027321A|2019-03-14|
    JP2019044776A|2019-03-22|
    DE102017120506A1|2019-03-07|
    CH714157A2|2019-03-15|
    CN109458259A|2019-03-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017120506.3A|DE102017120506A1|2017-09-06|2017-09-06|turbocharger|
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