• 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, comprising a turbine, the turbine having a turbine housing (4) with a Turbinenzuströmgehäuse (10) and a turbine rotor (5), with a compressor, wherein the compressor a compressor housing and with the turbine rotor (5) via a shaft (8 ) coupled compressor rotor (7), with a between the turbine housing (4) and the compressor housing arranged bearing housing (9), wherein both the turbine housing (4) and the compressor housing (6) are connected to the bearing housing (9). The Turbinenzuströmgehäuse (10) has a radially inner wall (13), a radially outer wall (14) and a radially middle wall (15), wherein the inner wall (13) on a side remote from the central wall (15) side Exhaust gas flow channel (12) limited, and wherein between the outer wall (14) and a central wall (15) has a cooling water passage (16) of the Turbinenzuströmgehäuses (10) is formed. The bearing housing (9) extends in the axial direction into the region of the inner wall (13) of Turbinenzuströmgehäuses (10), wherein one of the bearing housing (9) provided cooling water channel (17), the inner wall (13) of Turbinenzuströmgehäuses (10) the axial region, with which the bearing housing (9) extends into the region of the radially inner wall (13) of the Turbinenzuströmgehäuses (18), outside surrounds.
    公开号:CH713701A2
    申请号:CH00415/18
    申请日:2018-03-28
    公开日:2018-10-15
    发明作者:Hossbach Björn；Uhlenbrock Santiago
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    Description: The invention relates to a turbocharger.
    [0002] The basic structure of a turbocharger is known from DE 10 2013 002 605 A1. 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.
    From practice, it is known that the turbine housing of the turbine comprises a turbine inflow housing and a turbine outflow housing, the turbine inflow housing leading the hot exhaust gas in the direction of the turbine rotor. For this purpose, the turbine inflow housing defines an exhaust gas flow channel via which the hot exhaust gas can be fed to the turbine rotor. It is already known from practice to cool the turbine inflow housing, namely via a cooling water channel introduced into the turbine inflow housing. It is also known to cool the bearing housing, namely via a cooling water channel introduced into the bearing housing.
    So far, however, effective cooling of the turbocharger in the area of the turbine inflow housing and the bearing housing while ensuring a gas-tight connection between the bearing housing and the turbine inflow housing and at the same time ensuring containment safety in the area of the turbine is difficult.
    Proceeding from this, the present 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, the turbine inflow housing comprises a radially inner wall, a radially outer wall and a radially central wall, the radially inner wall delimiting an exhaust gas flow channel on a side facing away from the radially central wall, and wherein between the outer wall and a radially central one Wall is a cooling water channel of the turbine inflow housing is formed. The bearing housing extends in the axial direction up to the region of the radially inner wall of the turbine inflow housing, a cooling water channel provided by the bearing housing extending the radially inner wall of the turbine inflow housing and thus the exhaust gas flow channel of the turbine inflow housing in the axial region with which the bearing housing extends into the region of extends radially inner wall of the turbine inflow housing, radially surrounds the outside.
    With the above features, on the one hand, effective cooling of the turbine inflow housing and the bearing housing is possible, on the other hand, the turbine inflow housing and bearing housing can be connected to one another in a gas-tight manner, while still providing containment safety in the area of the turbine.
    Preferably, the bearing housing extends in the axial direction as far as the axial center of the exhaust gas flow channel in the region of the turbine inflow housing and is viewed in the axial direction in the area of the axial center of the exhaust gas flow channel with a section of the turbine inflow housing which provides the radially outer wall and the radially central wall , By moving the connection point or separation point between the turbine inflow housing and the bearing housing in the region of the axial center of the exhaust gas flow channel, which is provided by the turbine inflow housing, the connection between the bearing housing and the turbine inflow housing is shifted to an area that is less sensitive to temperature fluctuations, so that the gas-tightness of the connection is improved can. This also increases containment security.
    According to an advantageous development of the invention, the turbine inflow housing has a section providing the radially inner wall and a section providing the radially outer wall and the radially central wall, the section providing the radially inner wall and the radially outer wall and the radially central wall providing section are connected at an end facing away from the bearing housing. The connection of the two sections of the turbine inflow housing is shifted into an area insensitive to temperature fluctuations.
    According to an advantageous development of the invention, the cooling water channel provided by the bearing housing has a radially outer wall surrounding the radially inner wall of the turbine inflow housing and a second cooling water channel section facing the compressor housing, the first cooling water channel section and the second cooling water channel section in each case being designed to be circumferential in the circumferential direction are, and wherein the first cooling water channel section and the second cooling water channel section are coupled via cooling water-carrying ribs of the bearing housing, which preferably converge starting from the first cooling water channel section in the direction of the second cooling water channel section.
    This can provide both effective cooling of the turbine inflow housing and effective cooling of the compressor housing via the cooling water channel of the bearing housing. The toward the two
    CH 713 701 A2 ten cooling water channel section converging ribs counteract the formation of air bubbles and thus increase the effectiveness of the cooling. Furthermore, any oil drain hole that may be required can be introduced into the bearing housing at any circumferential position, so that the bearing housing can be installed in any circumferential orientation in the area of an internal combustion engine. The turbine inflow housing can also be installed or assembled in any circumferential orientation on the internal combustion engine together with the bearing housing.
    According to an advantageous development of the invention, a mounting element for the bearing housing engages on the radially outer wall of the turbine inflow housing delimiting the cooling water channel of the turbine inflow housing, preferably a mounting element for the bearing housing engaging on a radially outer wall of the bearing housing delimiting the cooling water channel of the bearing housing. The set-up elements in the area of the turbine inflow housing and the bearing housing ensure or support the mounting of the bearing housing and turbine inflow housing in any circumferential orientation on the internal combustion engine. An inlet flange of the turbine inflow housing can be freely rotated to any position by the freely selectable circumferential orientation of the turbine inflow housing and the bearing housing. Bearing housings and turbine inflow housings can be mounted in a freely selectable orientation based on a 360 ° circumferential extension.
    Depending on the desired circumferential orientation of the bearing housing, an oil drain to be introduced into the bearing housing is dependent, but the oil drain can be introduced into the bearing housing at any circumferential position due to the design of the cooling water channel of the bearing housing described above.
    [0015] 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 restricted to this. It shows:
    1 shows a cross section through a turbocharger according to the prior art.
    2 shows a cross section through a turbocharger according to the invention in the region of a bearing housing and a turbine inflow housing; and
    3 details of FIG. 2 in a perspective view with the turbine inflow housing partially removed.
    The invention relates to a turbocharger.
    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 5 and is connected to both the turbine housing 4 and the compressor housing 5.
    The turbine housing 4 of the turbine 2 of the turbocharger 1 comprises a turbine inflow housing 10 and a turbine outflow housing 11. The turbine inflow housing 10 defines an exhaust gas flow channel 12, via which hot exhaust gas can be supplied to the turbine rotor 5. Starting from the turbine rotor 5, the exhaust gas relaxed in the region of the turbine rotor 5 can then be discharged from the turbine 2 via an insert 29 and the turbine outflow housing 4.
    2 and 3 show details of a turbocharger 1 according to the invention in the area of the bearing housing 9 and the turbine inflow housing 10 of the turbine housing 4. Furthermore, FIGS. 2 and 3 show the turbine rotor 5 and the compressor rotor 7, which are connected to one another via the shaft 8 or respectively are coupled.
    The turbine inflow housing 10 of the turbine housing 4 has a radially inner wall 13, a radially outer wall 14 and a radially central wall 15. The turbine inflow housing 10 of the turbine housing 4 is accordingly of at least three walls.
    The radially inner wall 13 of the turbine inflow housing 10 delimits the exhaust gas flow channel 12 on a side facing away from the radially central wall 15. Between the radially outer wall 14 and the middle wall 15 of the turbine inflow housing 10, a cooling water channel 16 of the turbine inflow housing 10 is formed, which surrounds the exhaust gas flow channel 12 radially on the outside on an axial side, namely on the side facing away from the bearing housing 9.
    The bearing housing 9 extends in the axial direction up to the area of the radially inner wall 13 of the turbine inflow housing 10, preferably as shown in FIGS. 2, 3, seen in the axial direction up to the axial center of the radially inner wall 13 of the turbine inflow housing 10 limited exhaust gas flow channel 12.
    CH 713 701 A2 A cooling water channel 17 provided by the bearing housing 9, which is defined by a radially outer wall 18 and a radially inner wall 19 of the bearing housing 9, surrounds the radially inner wall 13 of the turbine inflow housing 10 in the axial region with which the bearing housing 9 extends into the area of the radially inner wall 13 of the turbine inflow housing 10, radially outside, that is to say seen in the axial direction up to the axial center of the exhaust gas flow channel 12.
    In the area in which the bearing housing 9, seen in the axial direction, extends into the region of the turbine inflow housing 10, namely into the region of the radially inner wall 13 of the turbine inflow housing 10, the radially inner wall 19 of the bearing housing 9 is between the radial Positioned outer wall 18 of the bearing housing 9 and the radially inner wall 13 of the turbine inflow housing 10.
    The bearing housing 9 is connected to that section of the turbine inflow housing 10 which, with the formation of the cooling water channel 16, provides the radially outer wall 14 and the radially central wall 15, namely via fastening means 20 shown in FIG. 2.
    The turbine inflow housing 10 of the turbine housing 4 of the turbine 2 accordingly has at least two sections, a first section providing the radially inner wall 13 and a second section having the radially outer wall 14 and the radially central wall 15. The section of the turbine inflow housing 10 which has the radially inner wall 13 is connected to the section of the turbine inflow housing 10 which provides the radially outer wall 14 and the radially central wall 15, to be precise on a side facing away from the bearing housing 9 or at an end facing away from the bearing housing 9 Via fastening means 21 shown in FIG. 2. The fastening means 21, via which the section of the turbine inflow housing 10 providing the radially inner wall 13 is connected to the section of the turbine inflow housing 10 providing the radially outer wall 14 and the radially central wall 15, also serve to mount the insert 29 on the section of the turbine inflow housing 10 which provides the radially inner wall 13.
    As already stated, the axial extent of that section of the turbine inflow housing 10 that provides the radially outer wall 14 and the radially central wall 15 is less than the axial extent of that section of the turbine inflow housing 10 that provides the radially inner wall 13, so that accordingly that section of the turbine inflow housing 10 which provides the radially outer wall 14 and the radially central wall 15, that section of the turbine inflow housing 10 which provides the radially inner wall 13 only surrounds radially on the outside in an axial region, namely in a region facing away from the bearing housing ,
    In the adjoining axial area facing the bearing housing 9, the bearing housing 9 surrounds the radially inner wall 13 of the turbine inflow housing 10 with the walls 18 and 19 providing the cooling water channel 17 radially on the outside.
    Between the radially inner wall 13 of the turbine inflow housing 10, the radially central wall 15 of the turbine inflow housing 10 and the radially inner wall 19 of the bearing housing 9, which is adjacent to the radially central wall 15 of the turbine inflow housing 10 to the radially inner wall 13 of the turbine inflow housing 10 adjacent, a cavity 22 is formed, which is admitted to exhaust gas, but is not used to guide the exhaust gas flow in the direction of the turbine rotor 5.
    The cooling water channel 17 provided by the bearing housing 9 has a first cooling water channel section 23, which surrounds the radially inner wall 13 of the turbine inflow housing 10 radially outside in a defined axial region, and a second cooling water channel section 24 facing the compressor 3 or the compressor housing 6. These two cooling water channel sections 23 and 24 of the cooling water channel 17 of the bearing housing 9 are formed circumferentially or circumferentially in the circumferential direction, these two cooling water channel sections 23, 24 of the bearing housing 9 being coupled to one another at several circumferential positions by means of ribs 25 carrying cooling water. Thus, three, four or five such cooling water-carrying ribs 25 can be distributed over the circumference of the bearing housing 9, via which the two cooling water channel sections 23 and 24 of the bearing housing 9 are coupled. However, the number of these ribs 25 carrying cooling water is arbitrary.
    The cooling water-carrying ribs 25 are constructed such that they converge starting from the first cooling water channel section 23 of the bearing housing, which serves to cool the turbine inflow housing 10, in the direction of the second cooling water channel section 24, which serves to cool the compressor housing 6. This counteracts the formation of air bubbles in the area of the cooling water channel 17, so that effective cooling can take place with the aid of the bearing housing 9 in the area of the compressor housing 6 or compressor rotor 7 and the turbine inflow housing 10 or turbine rotor 5.
    Due to the above configuration of the bearing housing 9 and turbine inflow housing 10, not only is effective cooling possible, but also containment safety in the region of the turbine 2 is increased. Since the connection point between the bearing housing 9 and the turbine inflow housing 10 is shifted radially outward into the region of the axial center of the exhaust gas flow channel 12, there is no risk of a thermally induced, undesirable relative displacement between the turbine inflow housing 10 and the bearing housing 9. The connection between the bearing housing 9 and the turbine inflow housing 10 is therefore gas-tight.
    CH 713 701 A2 Furthermore, due to the above configuration of the bearing housing 9 and turbine inflow housing 10, the bearing housing 9 and the turbine inflow housing 10 can be in any circumferential orientation, that is to say in any orientation with respect to a 360 ° circumferential extent of the bearing housing 9 and turbine inflow housing 10. be installed in the area of an internal combustion engine. In particular due to the above-described design of the cooling water-carrying ribs 25 of the bearing housing 9, an oil drain 26 can be introduced into the circumference of the bearing housing 9, which is directed downwards in the mounting position in order to discharge oil from the bearing housing 9. The oil to be discharged from the bearing housing 9 is used in particular for the lubrication and / or cooling of at least one bearing of the shaft 8. In Fig. 3, an oil ring chamber 27 of the bearing housing 9 is shown, the lubricating oil or cooling oil from the outside under a line 30 Pressure can be applied to lubricate and / or cool the or each bearing of the shaft 8. Such oil, which was passed over the or each bearing of the shaft 8, can then be removed from the bearing housing 9 via the oil drain 26.
    In order to be able to mount the bearing housing 9 and the turbine inflow housing 10 and thus the turbocharger 1 on an internal combustion engine, both the turbine inflow housing 10 and the bearing housing 9 each have a mounting element 27 or 28, which in the exemplary embodiment shown in FIG. 2 as in Cross-section L-shaped feet are formed. A first set-up element 27 engages the turbine inflow housing 10, namely on the radially outer wall 14 of the turbine inflow housing 10 delimiting the cooling water channel 16, whereas a second set-up element 28 engages on the bearing housing 9, namely on the radially outer wall 19 delimiting the cooling water channel 17 of the bearing housing 9 , The respective set-up element 27, 28 can be mounted on the bearing housing 9 and turbine inflow housing 10 in any circumferential orientation of the bearing housing 9 and turbine inflow housing 10 such that the same protrudes downward, in order then to mount the arrangement shown in FIG. 2 standing on an internal combustion engine.
    In the turbocharger according to the invention, the cooling water duct 17 of the bearing housing 9 is therefore extended into the region of the turbine inflow housing 10 and is drawn in sections around the exhaust gas flow duct 12 and the radially inner wall 13 of the turbine inflow housing 10. A separation joint or connection point between the bearing housing 9 and the turbine inflow housing 10 is displaced approximately in the region of the axial center of the exhaust gas flow channel 12 or the radially inner wall 13 of the turbine inflow housing 10 delimiting the exhaust gas flow channel 12. On the side facing away from the bearing housing 9 there is a section of the turbine inflow housing 10, which likewise provides a cooling water channel 16, namely the cooling water channel 16 of the turbine inflow housing 10, the section of the turbine inflow housing 10 providing the inner wall 13 and the section providing the cooling water channel 16 of the same of the turbine inflow housing 10 are connected to one another on the side facing away from the bearing housing 9. That cooling water channel section 23 of the cooling water channel 17 of the bearing housing 9, which is used for cooling in the region of the turbine inflow housing 10, is coupled in a cooling water channel section 24, which serves for cooling in the region of the compressor, via ribs 25 which conduct cooling water.
    Reference symbol list [0038]
    turbocharger
    turbine
    compressor
    turbine housing
    turbine rotor
    compressor housing
    compressor rotor
    wave
    bearing housing
    Turbinenzuströmgehäuse
    Turbinenzuströmgehäuse
    Exhaust gas flow channel radially inner wall radially outer wall
    CH 713 701 A2 radial middle wall
    Cooling water channel
    Cooling water duct radially outer wall radially inner wall
    fastener
    fastener
    cavity
    Cooling water channel section
    Cooling water channel section
    rib
    oil drain
    positioning element
    positioning element
    insert
    management
    权利要求:
    Claims (8)
    [1]
    1. turbocharger (1), with a turbine (2) for expanding a first medium, the turbine (2) having a turbine housing (4) with a turbine inflow housing (10) and a turbine rotor (5), with a compressor (3) for compressing a second medium using energy obtained in the turbine (2) when the first medium is expanded, the compressor (3) comprising a compressor housing (6) and a compressor rotor (5) coupled to the turbine rotor (5) via a shaft (8) 7), with a bearing housing (9) arranged between the turbine housing (4) and the compressor housing (6), both the turbine housing (4) and the compressor housing (6) being connected to the bearing housing (9), characterized in that that the turbine inflow housing (10) has a radially inner wall (13), a radially outer wall (14) and a radially central wall (15), the radially inner wall (13) being separated from the radially central wall (15) On the other hand, an exhaust gas flow channel (12) is delimited, and a cooling water channel (16) of the turbine inflow housing (10) is formed between the outer wall (14) and a radially central wall (15), the bearing housing (9) viewed in the axial direction up to the region of the radially inner wall (13) of the turbine inflow housing (10) extends, a cooling water channel (17) provided by the bearing housing (9) providing the radially inner wall (13) and thus the exhaust gas flow channel (12) of the turbine inflow housing (10) in the axial region , with which the bearing housing (9) extends into the area of the radially inner wall (13) of the turbine inflow housing (18), surrounds radially on the outside.
    [2]
    2. Turbocharger according to claim 1, characterized in that the bearing housing (9) extends in the axial direction up to the axial center of the exhaust gas flow channel (12) in the region of the turbine inflow housing (10) and viewed in the axial direction in the region of the axial center of the exhaust gas flow channel ( 12) is connected to a section of the turbine inflow housing (10) which provides the radially outer wall (14) and the radially central wall (15).
    [3]
    3. Turbocharger according to claim 1 or 2, characterized in that the turbine inflow housing (10) has a section providing the radially inner wall (13) and a section providing the radially outer wall (14) and the radially central wall (15), wherein the section providing the radially inner wall (13) and the section providing the radially outer wall (14) and the radially central wall (15) are connected at an end remote from the bearing housing (9).
    CH 713 701 A2
    [4]
    4. Turbocharger according to one of claims 1 to 3, characterized in that the cooling water duct (17) provided by the bearing housing (9) has a radially inner wall (13) of the turbine inflow housing (10) surrounding the first cooling water duct section (23) and one of the radially inner wall Compressor housing (6) facing second cooling water channel section (24).
    [5]
    5. Turbocharger according to claim 4, characterized in that the first cooling water channel section (23) and the second cooling water channel section (24) are each formed circumferentially in the circumferential direction, the first cooling water channel section (23) and the second cooling water channel section (24) via cooling water-carrying ribs ( 25) of the bearing housing (9) are coupled.
    [6]
    6. Turbocharger according to claim 5, characterized in that the cooling water-carrying ribs (25) converge starting from the first cooling water channel section (23) in the direction of the second cooling water channel section (24).
    [7]
    7. Turbocharger according to one of claims 1 to 6, characterized in that on the cooling water channel (16) of the turbine inflow housing (10) delimiting radially outer wall (14) of the turbine inflow housing (10) has a mounting element (27) for the turbine inflow housing (10) attacks.
    [8]
    8. Turbocharger according to one of claims 1 to 7, characterized in that on a cooling water channel (17) of the bearing housing (9) delimiting radially outer wall (18) of the bearing housing (9) has a mounting element (28) for the bearing housing (9) attacks.
    CH 713 701 A2
    CH 713 701 A2
    CH 713 701 A2
    类似技术:
    公开号 | 公开日 | 专利标题
    CH713701A2|2018-10-15|Turbocharger.
    DE3447740C2|1998-01-29|Gas turbine engine
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    EP1744014A1|2007-01-17|Gas turbine inlet guide vane mounting arrangement
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    DE102015122238A1|2016-06-23|System and method including a perimeter seal assembly to facilitate sealing in a turbine
    DE102016101168A1|2017-07-27|Turbomachine with an arranged in a recess of a wall insertion device
    CH711975A2|2017-06-30|Radial turbine, turbocharger and insert for a turbine housing of the radial turbine.
    DE102011008812A1|2012-07-19|intermediate housing
    同族专利:
    公开号 | 公开日
    KR20180113465A|2018-10-16|
    US10655497B2|2020-05-19|
    US20180291764A1|2018-10-11|
    JP2018179001A|2018-11-15|
    CN108729964A|2018-11-02|
    CH713701B1|2021-12-30|
    DE102017107381A1|2018-10-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    ES461142A1|1976-09-04|1978-06-01|Mtu Friedrichshafen Gmbh|Exhaust gas turbocharger|
    DE2945272C2|1978-11-13|1982-06-09|Ishikawajima-Harima Jukogyo K.K., Tokyo|Exhaust gas turbocharger|
    DE19925684A1|1999-06-04|2000-12-07|Asea Brown Boveri|Fastener for turbocharger to base e.g. IC engine has positively interconnecting connection elements on bearing housing and main fastener foot|
    CN201027565Y|2007-03-19|2008-02-27|寿光市康跃增压器有限公司|Explosion-proof turbocharger|
    US8206133B2|2008-08-12|2012-06-26|GM Global Technology Operations LLC|Turbocharger housing with integral inlet and outlet openings|
    DE102010030516A1|2010-06-25|2011-12-29|Bayerische Motoren Werke Aktiengesellschaft|Exhaust gas turbocharger for internal combustion engine, has turbine wheel rotatably arranged in bearing housing, compressor housing and turbine housing via drive shaft, where shaft is driven by compressor wheel|
    US9091208B2|2010-07-16|2015-07-28|Honeywell International Inc.|Turbocharger bearing housing assembly|
    DE102011003901A1|2011-02-10|2012-08-16|Continental Automotive Gmbh|Exhaust gas turbocharger with cooled turbine housing and cooled bearing housing and common coolant supply|
    JP5761170B2|2012-12-27|2015-08-12|トヨタ自動車株式会社|Turbocharger|
    DE102013002605A1|2013-02-15|2014-08-21|Man Diesel & Turbo Se|Turbocharger and thrust bearing for a turbocharger|JP6667488B2|2017-11-08|2020-03-18|アイシン高丘株式会社|Turbine housing|
    DE102018105827A1|2018-03-14|2019-09-19|Man Energy Solutions Se|Formwork of a turbocharger and turbocharger|
    CN113677878A|2019-04-17|2021-11-19|株式会社Ihi|Turbine housing and supercharger|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017107381.7A|DE102017107381A1|2017-04-06|2017-04-06|turbocharger|
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