• 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, 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 and a compressor housing are each connected to a bearing housing arranged between them, wherein the turbine housing and / or the compressor housing and / or the bearing housing forms a stator-side assembly and / or accommodates a stator-side assembly (10) which serves for lubrication and / or heat conduction and / or sealing. The respective stator-side assembly (10), which is used for lubrication and / or heat conduction and / or sealing, is produced by a generative manufacturing process.
    公开号:CH715640A2
    申请号:CH01392/19
    申请日:2019-11-04
    公开日:2020-06-15
    发明作者:brandt Sven；Stöhr Stefan；Aurahs Lutz；Rost Stefan；Weihard Stefan；Uhlenbrock Santiago；Spengler Sebastian
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    The invention relates to a turbocharger. Furthermore, the invention relates to a method for producing an assembly of a turbocharger, the use of the assembly and the method.
    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.
    Stator-side assemblies of turbochargers have so far been designed as cast components. If structures are to be introduced into such a cast component that are used for lubrication and / or heat conduction and / or sealing, the structures either have to be mechanically incorporated into the blank produced by casting or have already been introduced into the raw part by means of appropriate cores during the casting . As a result, there are strict limits for the structures to be introduced with regard to producibility.
    Proceeding from this, the invention has for its object to provide a novel turbocharger, a method for manufacturing an assembly of a turbocharger and a corresponding use of the assembly and the method.
    This object is achieved by a turbocharger according to claim 1. According to the invention, the respective stator-side assembly, which is used for lubrication and / or heat conduction and / or sealing, is produced by a generative manufacturing process, preferably by 3D printing.
    With the present invention, it is proposed for the first time to manufacture a stator-side assembly of a turbocharger, which is used for lubrication and / or heat conduction and / or sealing, by a generative manufacturing process, preferably by 3D printing. As a result, there are no geometric restrictions on the component to be produced, as are common during casting. Through the use of a generative manufacturing process for manufacturing a stator-side assembly of a turbocharger, in particular media channels, targeted support structures and / or cavities with porosities or honeycomb structures can be produced, which are particularly suitable for lubrication and / or heat conduction and / or sealing.
    The method for producing a stator-side assembly of a turbocharger is defined in claim 6. The use of an assembly produced by a generative manufacturing process is defined in claim 8 and the use of the additive manufacturing process for manufacturing an assembly is defined in claim 9.
    Preferred developments of the invention result from the subclaims 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:<tb> Fig. 1 <SEP> a schematic cross section through a first stator-side assembly of a turbocharger;<tb> Fig. 2 <SEP> schematic cross sections through a second stator-side assembly of a turbocharger;<tb> Fig. 3 <SEP> a schematic cross section through a third stator-side assembly of a turbocharger;<tb> Fig. 4 <SEP> a schematic cross section through a fourth stator-side assembly of a turbocharger;<tb> Fig. 5 <SEP> a schematic cross section through a fifth stator-side assembly of a turbocharger;<tb> Fig. 6 <SEP> a schematic cross section through a sixth stator-side assembly of a turbocharger; and<tb> Fig. 7 <SEP> a schematic cross section through another stator-side assembly of a turbocharger.
    The basic structure of a turbocharger is known to those skilled in the art. For example, a turbocharger has a turbine for expanding a first medium and a compressor for compressing a second medium using the energy obtained in the turbine when expanding the first medium. The first medium to be expanded in the turbine is exhaust gas and the second medium to be compressed in the compressor is charge air from an internal combustion engine.
    [0010] A turbine has a turbine stator and a turbine rotor. The turbine stator includes a turbine housing that can accommodate other stator-side assemblies of the turbine. A compressor has a compressor stator and a compressor rotor. The compressor stator includes a compressor housing that can accommodate other stator-side assemblies of the compressor.
    The turbine rotor, which is also referred to as a turbine impeller, is connected to the compressor rotor, which is also referred to as a compressor impeller, by a shaft, the shaft being mounted in a further stator-side component of the turbocharger, namely in a bearing housing. The bearing housing is positioned between the turbine housing and the compressor housing and is connected to both the turbine housing and the compressor housing.
    A turbocharger has stator-side assemblies for heat conduction and / or lubrication and / or sealing. Such stator-side assemblies, which are used for lubrication and / or heat conduction and / or sealing, can be an integral part of the turbine housing and / or the compressor housing and / or the bearing housing or can be accommodated as a separate assembly by the turbine housing or compressor housing or bearing housing. Such stator-side modules include, for example, bearing bodies, bearing bushes, modules for sealing air guidance and the like.
    With the invention it is proposed that the respective stator-side assembly, which is used for lubrication and / or heat conduction and / or sealing, is produced by a generative manufacturing process, in particular by 3D printing.
    The present invention accordingly proposes a turbocharger with at least one stator-side assembly that serves for lubrication and / or heat conduction and / or sealing, which is either an integral part of the turbine housing and / or compressor housing and / or bearing housing of the turbocharger , or which is designed as a separate assembly and is received by the turbine housing and / or compressor housing and / or bearing housing, this stator-side assembly being produced by a generative manufacturing process, preferably by 3D printing.
    Furthermore, the invention proposes a method for producing such a stator-side assembly of a turbocharger, which is used for lubrication and / or heat conduction and / or sealing, by a generative manufacturing method, in particular by 3D printing.
    Furthermore, the invention proposes the use of an assembly produced by a generative manufacturing method, in particular by 3D printing, as a stator-side assembly of a turbocharger, which is used for lubrication and / or heat conduction and / or sealing.
    Ultimately, it is proposed to use a generative manufacturing method, in particular 3D printing, for producing a stator-side assembly of a turbocharger, which is used for lubrication and / or heat conduction and / or sealing.
    Fig. 1 shows a schematic cross section through an assembly 10 of a turbocharger according to the invention, wherein the assembly 10 is a bearing body. This bearing body 10 is preferably received by a bearing housing of the turbocharger.
    The bearing body 10 shown in Fig. 1 is preferably formed as a separate assembly, received by the bearing housing of the turbocharger and carries in the embodiment shown on the one hand radial bearing 11 and on the other hand axial bearing 12 for mounting a shaft of the turbocharger. In the bearing body 10 produced by the additive manufacturing process, oil channels 13 and oil storage spaces 14 are introduced, which serve to guide the media of oil, which is used for the lubrication and possibly cooling of the shaft, not shown. Such a bearing body 10 can be produced particularly advantageously by 3D printing.
    Fig. 2 shows two cross sections through a further stator-side component 20 of a turbocharger, wherein this component 20 is an assembly into which sealing air channels 21 are introduced. The sealing air channels 21 are offset from one another both in the axial direction and in the circumferential direction, wherein sealing air can be directed in the direction of a shaft seal 22 of a shaft 23 via the sealing air channels 21 of the stator-side assembly 20. This shaft 23 is connected to a turbine impeller 24. Such a component 20 can also be used in the area of a compressor for sealing air guidance. Component 20 is preferably accommodated in a bearing housing or can also be an integral part of a bearing housing 25.
    3 shows a section of a turbocharger in the region of a compressor impeller 30 and a stator-side assembly 31 adjacent to the compressor impeller 30, which is an integral part of the compressor housing. A hollow structure, namely a cavity 32, is introduced into the assembly 31, which can serve to guide the media, in particular to guide a cooling medium through the cavity 32 for cooling the compressor rotor 30. It is possible to pass either air or oil for cooling through the cavity 32. The cavity 32 can be designed without connecting holes or alternatively with connecting holes to the environment.
    Fig. 4 shows a section of a turbocharger according to the invention in the region of a turbine, specifically in the region of a turbine impeller 40 and an adjacent turbine housing 41. A cavity 42 is introduced into the stator-side turbine housing 41, which in turn serves for cooling, here the Cooling of the turbine rotor 40. In analogy to the exemplary embodiment in FIG. 3, this cavity 42 can serve to guide the media, in particular to guide air or oil, in order to cool the turbine rotor 40. The cavity 42 can in turn be designed with connecting bores or without connecting bores to the surroundings.
    5 shows a schematic cross section through a further stator-side component 50 of a turbocharger, the component 50 being a bearing bush. A media guide channel 51 is introduced into this bearing bush 50, in particular for guiding oil in the direction of a running surface of a shaft to be supported. Component 50 accordingly serves for the storage and lubrication and possibly cooling of a shaft of the turbocharger, but component 50 as such is a stator-side assembly. The bearing bush is preferably received in the bearing housing of the turbocharger.
    A further section from a turbocharger according to the invention is shown in FIG. 6, in a manner analogous to FIG. 3, again a section from a compressor impeller 60 in combination with a compressor housing 61. A cavity 62 is again introduced into the compressor housing 61, specifically a Cavity 62 with targeted porosities 63. Via a channel 64, this cavity 32 can be supplied with coolant, for example, in order to cool the compressor impeller 60.
    7 shows a further section of a turbocharger according to the invention in the region of a compressor impeller 70 and a compressor housing 71. The compressor housing 71 is again a stator-side assembly. 7, two defined structures are introduced into this stator-side assembly, namely a coolant channel 72 for cooling the compressor impeller 70 and a cavity 73 with, for example, a honeycomb structure 74 in order to provide a heat-insulating effect. The honeycomb structure 74 can be filled with a gas or heat-insulating materials.
    Cooling and thermal insulation both serve to conduct heat, namely the cooling of the dissipation of heat from the component to be cooled and the thermal insulation of the shielding of a component to be insulated from a heat supply.
    The invention proposes to produce a stator-side component of a turbocharger, which is used for lubrication and / or heat conduction and / or sealing, by means of an additive manufacturing process, preferably by 3D printing.
    This component can either be designed as a separate component or be an integral part of a compressor housing or turbine housing or bearing housing of the turbocharger.
    Structures, such as, for example, media guide structures and / or support structures or the like, can be introduced into the component without any geometric restrictions, as is the case with casting. This makes it possible to run a medium for cooling and / or lubrication and / or sealing over complex geometric structures in order to ensure optimal lubrication and / or cooling and / or sealing.
    The assemblies which relate to the invention are metallic assemblies, metal powders being kept ready for printing such metallic assemblies, which are then applied or melted to one another in layers or layers by 3D printing to produce the component.
    Reference list
    10 assembly / bearing body 11 radial bearing 12 axial bearing 13 oil channel 14 oil storage space 20 assembly 21 sealing air duct 22 shaft seal 23 shaft 24 impeller 25 bearing housing 30 compressor impeller 31 assembly / compressor housing 32 cavity 40 turbine impeller 41 assembly / turbine housing 42 cavity 50 assembly / bearing bush 51 oil channel 60 Compressor impeller 61 assembly / compressor housing 62 cavity 63 porosity 64 channel 70 compressor impeller 71 assembly / compressor housing 72 cooling duct 73 cavity 74 honeycomb structure
    权利要求:
    Claims (9)
    [1]
    1. turbocharger,with a turbine to relax a first medium,with a compressor for compressing a second medium using energy obtained in the turbine when the first medium relaxes,wherein a turbine housing (41) of the turbine and a compressor housing (31, 61, 71) of the compressor are each connected to a bearing housing (25) arranged between them,wherein the turbine housing (41) and / or the compressor housing (31, 61, 71) and / or the bearing housing (25) forms a stator-side assembly and / or accommodates a stator-side assembly (10, 20, 50) which is responsible for the lubrication and / or conduction and / or sealing is used,characterized in thatthe respective stator-side assembly (10, 20, 31, 41, 50, 61, 71), which is used for lubrication and / or heat conduction and / or sealing, is produced by a generative manufacturing process.
    [2]
    2. Turbocharger according to claim 1, characterized in that the respective stator-side assembly (10, 20, 31, 41, 50, 61, 71), which serves for lubrication and / or heat conduction and / or sealing, is produced by 3D printing.
    [3]
    3. Turbocharger according to claim 1 or 2, characterized in that the respective stator-side assembly (10, 50) is a bearing body with oil guide channels (13, 51).
    [4]
    4. Turbocharger according to claim 1 or 2, characterized in that the respective stator-side assembly (20) has sealing air channels (21) for guiding sealing air in the direction of a shaft seal.
    [5]
    5. Turbocharger according to claim 1 or 2, characterized in that the respective stator-side assembly (31, 41, 61, 71) has cavities for heat conduction of a turbine impeller (40) of the turbine or a compressor impeller (33, 60, 70) of the compressor.
    [6]
    6. A method for producing a stator-side assembly (10, 20, 31, 41, 50, 61, 71) of a turbocharger, which is used for lubrication and / or heat conduction and / or sealing, characterized in that the stator-side assembly (10, 20, 31, 41, 50, 61, 71) is produced by a generative manufacturing process.
    [7]
    Method according to claim 6, characterized in that the stator-side assembly (10, 20, 31, 41, 50, 61, 71) is produced by 3D printing.
    [8]
    8. Use of an assembly produced by a generative manufacturing process, in particular by 3D printing, as a stator-side assembly (10, 20, 31, 41, 50, 61, 71) of a turbocharger, which is used for lubrication and / or heat conduction and / or sealing .
    [9]
    9. Use of a generative manufacturing process, in particular 3D printing, for producing a stator-side assembly of a turbocharger, which is used for lubrication and / or heat conduction and / or sealing.
    类似技术:
    公开号 | 公开日 | 专利标题
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    EP3532740B1|2020-08-05|Rotation system with axial gas bearing
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    DE102011115954A1|2012-05-03|Method for manufacturing crankshaft of internal combustion engine, involves forming notches on fracture-separated regions of bearing pins
    EP2245307B1|2013-07-24|Compressor with a hydraulic pump and method for producing a compressor with a hydraulic pump
    DE102016209603A1|2017-12-07|Internal combustion engine with two exhaust gas turbochargers
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    DE102020202129A1|2021-08-19|Turbo engine assembly
    DE102018007405A1|2020-03-19|Method for mounting an internal combustion engine, in particular for a motor vehicle
    同族专利:
    公开号 | 公开日
    DE102018130772A1|2020-06-04|
    JP2020090956A|2020-06-11|
    US20200173361A1|2020-06-04|
    RU2736137C1|2020-11-11|
    KR20200067767A|2020-06-12|
    CN111271141A|2020-06-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0143182A1|1983-09-01|1985-06-05|BBC Brown Boveri AG|Two-stage exhaust turbo charger having a device to avoid lubricant losses|
    SU1177522A1|1984-03-30|1985-09-07|Коломенский тепловозостроительный завод им.В.В.Куйбышева|Turbocompressor for supercharging combustion engine|
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    DE102014200381A1|2014-01-13|2015-07-16|Robert Bosch Gmbh|Method of generatively producing a turbine wheel with a shroud|
    FR3040733B1|2015-09-07|2018-08-31|Poly Shape|CARTER FOR ROTATING MACHINES, ESPECIALLY FOR TURBOMACHINES.|
    DE102016205976A1|2016-04-11|2017-10-12|Volkswagen Aktiengesellschaft|Impeller, turbomachine and method for producing an impeller|
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    DE102016221840A1|2016-11-08|2018-05-09|Schaeffler Technologies AG & Co. KG|Outer ring for a turbocharger|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102018130772.1A|DE102018130772A1|2018-12-04|2018-12-04|Turbocharger, method of manufacturing a turbocharger assembly and use|
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