• 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:
    Exhaust gas turbocharger, comprising a turbine for the expansion of exhaust gas and for obtaining energy, and a compressor for the compression of charge air with the aid of the energy obtained in the turbine, the turbine comprising a multi-part turbine housing (10) with an inlet housing and a discharge housing (9). and a turbine rotor positioned in the turbine housing, and wherein the compressor comprises a multi-part compressor housing (2) having a bearing housing and a volute (4) and a compressor rotor positioned in the compressor housing and coupled to the turbine rotor, including the turbine housing (10) and the compressor housing (2) compressive stressing support structure (12) having an outside on the compressor housing (2) engaging the first annular flange (13) and an outside on the turbine housing (10) engaging second annular flange (14) by Zugdruckanker (15) below Bracing the turbine housing (10) and the compressor housing äuses (2) are interconnected.
    公开号:CH711752A2
    申请号:CH01086/16
    申请日:2016-08-24
    公开日:2017-05-15
    发明作者:Bartholomä Klaus；Griesshaber Frank；Braun Steffen；Melskotte Jan-Erik；Thaser Boris；Sauer Denis；Hort Vladimir
    申请人:Man Diesel & Turbo Se；
    IPC主号:
    专利说明:

    Description: The invention relates to an exhaust gas turbocharger and a support structure for an exhaust gas turbocharger.
    An exhaust gas turbocharger has a turbine and a compressor. The turbine of the exhaust gas turbocharger serves for the expansion of exhaust gas leaving an engine and the recovery of energy during the expansion of the exhaust gas. The compressor of an exhaust gas turbocharger serves to compress the charge air to be supplied to the engine by means of the energy obtained in the turbine. The turbine has a multi-part turbine housing and a turbine rotor positioned in the turbine housing. The compressor has a multi-part compressor housing and a compressor rotor positioned in the compressor housing. Compressor rotor and turbine rotor are coupled via a shaft. During operation of an exhaust gas turbocharger, there is the risk that, for example, the compressor rotor breaks and fragments of the compressor rotor penetrate the compressor housing and fly into the surroundings of the exhaust gas turbocharger. A similar damage event can also occur in the area of the turbine of the exhaust gas turbocharger. In order to take this problem into account, the compressor housing and possibly the turbine housing is designed in such a way that damage of the respective housing is not to be expected and even when breaking the respective rotor fragments of the same housing can not penetrate in known from practice exhaust gas turbochargers. As a result, however, on the one hand, the weight of the exhaust gas turbocharger is increased, on the other hand, these measures can only be used in newly designed exhaust gas turbochargers. Existing, older exhaust gas turbochargers, however, can not be redesigned, so that they have no corresponding protection and therefore can reach fragments in the event of damage to the environment.
    From DE 10 2013 013 571 A1 a solution is known, with the older, existing exhaust gas turbocharger can be protected in case of damage so that no fragments of the same enter the environment. For this purpose, it is proposed that the compressor housing and / or the turbine housing is at least partially enveloped by at least one metal ring fabric.
    On this basis, the present invention has the object to provide a novel exhaust gas turbocharger and a support structure for an exhaust gas turbocharger.
    This object is achieved by an exhaust gas turbocharger according to claim 1.
    According to the invention, the exhaust gas turbocharger on the turbine housing and the compressor housing via compressive forces spanning support structure having an outside on the compressor housing engaging the first annular flange and an outside engaging the turbine housing second annular flange, which are interconnected by Zugdruckanker under tensioning of the turbine housing and the compressor housing , The inventive exhaust gas turbocharger has a particularly advantageous protection for a damage of the exhaust gas turbocharger, so that fragments thereof can not get into the environment. The support structure of the exhaust gas turbocharger according to the invention is particularly suitable for retrofitting existing, older exhaust gas turbochargers.
    Preferably, the first annular flange engages the outside on the volute casing of the compressor housing and the second annular flange on the outside of the outflow housing of the turbine housing. The train pressure anchors extend outside the compressor housing and outside the turbine housing. This is a particularly effective protection of exhaust gas turbochargers in case of damage is possible, which is particularly suitable for retrofitting existing, older exhaust gas turbocharger.
    According to an advantageous development of the support structure braces the turbine housing and the compressor housing or the corresponding housing parts thereof via compressive forces that caused by the compressive forces compressive stresses in the housings or housing parts in terms of amount are greater than in the event of damage to the housing or housing parts acting tensile stresses. This can be easily and reliably avoided that braced housing or housing parts burst in the event of damage to the exhaust gas turbocharger and so fragments of the compressor rotor or the turbine rotor can penetrate the respective housing. Particularly advantageous hereby existing, older exhaust gas turbocharger can be protected in case of damage.
    According to a further advantageous embodiment, the compressor housing comprises a spiral housing of the same mounted insert of a ductile material. This can be ensured that in the event of damage to the compressor rotor incident on the insert fragments thereof lead to a surface load and not to a point load of the insert, so that in case of damage to the compressor housing acting on the insert forces can be advantageously introduced into the support structure. This is a particularly effective protection of the exhaust gas turbocharger in case of damage possible.
    The inventive support structure for an exhaust gas turbocharger is defined in claim 10.
    Preferred embodiments of the invention will become apparent from the dependent claims and the description below. Embodiments of the invention will be described, without being limited thereto, with reference to the drawings. Showing:
    Fig. 1: a partial cross-section through an exhaust gas turbocharger according to the prior art;
    2 shows an external view of an exhaust gas turbocharger according to the invention.
    The invention relates to an exhaust gas turbocharger. An exhaust gas turbocharger has a turbine and a compressor. The turbine of an exhaust gas turbocharger has a multi-part turbine housing and a turbine rotor accommodated in the turbine housing. The compressor of an exhaust gas turbocharger comprises a compressor housing and a compressor rotor accommodated in the compressor housing. Turbine rotor and compressor rotor are coupled together. In the area of the turbine during the expansion of exhaust gas recovered energy is used in the compressor to compress charge air.
    Fig. 1 shows a partial cross section of an exhaust gas turbocharger in the region of a compressor 1, namely a compressor housing 2, wherein the compressor housing 2 shown in Fig. 1 is composed of a bearing housing 3 and a volute 4.
    Fig. 1 also shows an engaging on the volute casing 4 of the compressor housing 2 insert 5 and also on the volute casing 4 of the compressor housing 2 attacking element of a muffler 6. Also shown in Fig. 1, a compressor rotor 7, wherein the compressor rotor 7 together with the insert 5 defines a flow channel 8 for charge air to be compressed. On the bearing housing 3 of the compressor housing 2 engages a discharge housing 9 of a turbine housing 10 of a turbine 11 of the exhaust gas turbocharger, wherein the turbine housing 9 has in addition to the outflow housing 10 via a Zuströmgehäuse not shown. Furthermore, the turbine 11 includes a turbine rotor, not shown, which is coupled to the compressor rotor 7.
    The basic structure of an exhaust gas turbocharger shown in Fig. 1 is familiar to the person skilled in the art.
    To provide a burst protection or Containmentschutzes for the exhaust gas turbocharger is provided in the sense of the present invention that the exhaust gas turbocharger comprises a support structure 12, by means of which the turbine housing 10 and the compressor housing 2 are clamped together via pressure forces. For this purpose, the support structure 12 has an outer annular flange 13 acting on the outside of the compressor housing 2 and a second annular flange 14 acting on the outside of the turbine housing 10. The first annular flange 13 is connected to the compressor housing 2, namely with the volute casing 4 thereof, whereas the second annular flange 14 is connected to the turbine housing 10, namely the outflow housing 9 thereof. The first annular flange 13 engages outside on the compressor housing 2, namely on the volute casing 4, via first screw connections, the second annular flange 14 engaging externally on the turbine housing 10, namely on the outflow housing 9, via a second screw connection.
    Diebeiden annular flanges 13,14 of the support structure 12 are connected to each other via a plurality of Zugdruckanker 15, namely under distortion of the turbine housing 10 and the compressor housing 2 under the introduction of compressive stresses in these housings 2,10, which are effected by compressive forces. The outside of the compressor housing 2 and turbine housing 10 attacking support structure 12 clamped accordingly in the preferred embodiment shown, the spiral housing 4 of the compressor housing 2 and the outflow housing 9 of the turbine housing 10 with each other, via compressive forces, said pressure forces on the train pressure anchor 15 and the annular flanges 13, 14 of the support structure 12 are introduced into the housing parts, namely in the volute casing 4 and the outflow housing 9, cause compressive stresses in these housing parts which are larger in magnitude than in the case of damage to the housing 2,10 and the housing parts 4, 9 acting tensile stresses , In case of damage acting tensile forces and thereby caused tensile stresses acting on the housing of the exhaust gas turbocharger or the above-mentioned housing parts of the housing, can therefore be compensated by the introduced from the support structure 12 into the housing 2,10 and the housing parts 4,9 compressive stresses so that there is no risk that the housing 2, 10 or the housing parts 4, 9 burst in the event of damage.
    The first annular flange 13 which acts on the outside of the compressor housing 2, in particular on the volute casing 4 of the compressor housing 2, takes in the first case in case of damage to the compressor housing 2 acting axial forces, whereas the second annular flange 14, the outside of the turbine housing 10 and engages the discharge housing 9 of the same, in the event of damage primarily on the turbine housing 10 acting axial forces absorbs.
    Then, if in a case of damage of the exhaust gas turbocharger, the compressor rotor 7 or the turbine rotor, not shown, burst, axial forces that are caused by hitting fragments of these rotors on the housing can be safely collected on the support structure 12. In the event of damage, for example, fragments of the compressor rotor 7 may first reach the insert 5 and exert tensile forces and thus tensile stresses on the spiral housing 4 of the compressor housing 2 via the insert piece 5. Furthermore, such fragments reach the bearing housing 3 of the compressor housing 2, which is connected to the outflow housing 9 of the turbine housing 10. As a result, tensile forces and thus tensile stresses are ultimately introduced into the housing or housing parts, which can lead to their destruction. Hiervor protects the inventive support structure 12, over which the volute casing 4 of the compressor housing 2 and the outflow housing 9 of the turbine housing 10 are defined by introducing compressive stresses in the housing or housing parts clamped together. As already stated, the annular flange 14 absorbs forces that are introduced into the outflow housing 9 of the turbine housing 10, whereas the annular flange 13 primarily absorbs forces that act on the volute casing 4 of the compressor housing 2. By means of a suitable number of tie rods 15, which connect the two annular flanges 13, 14 with the housing or housing parts braced together, a suitable prestressing in the housings 2, 10 or the housing parts 4, 9 can be set.
    权利要求:
    Claims (11)
    [1]
    An exhaust gas turbocharger, comprising a turbine (11) for the expansion of exhaust gas and for the production of energy, and a compressor (1) for the compression of charge air by means of the energy obtained in the turbine, wherein the turbine (11) comprises a multi-part turbine housing ( 10) having an inlet housing and a discharge housing (9) and a turbine rotor positioned in the turbine housing, and wherein the compressor (1) comprises a multi-part compressor housing (2) with a bearing housing (3) and a volute casing (4) and one in the compressor housing having positioned and coupled to the turbine rotor compressor rotor (7), characterized by the turbine housing (10) and the compressor housing (2) compressive stressing support structure (12) having an outside on the compressor housing (2) engaging the first annular flange (13) and a on the outside of the turbine housing (10) engaging second annular flange (14) by tension anchor (15) under tension de s turbine housing (10) and the compressor housing (2) are interconnected.
    [2]
    2. Exhaust gas turbocharger according to claim 1, characterized in that the first annular flange (13) on the outside of the volute casing (4) of the compressor housing (2) engages.
    [3]
    3. Exhaust gas turbocharger according to claim 1 or 2, characterized in that the second annular flange (14) on the outside of the outflow housing (9) of the turbine housing (10) engages.
    [4]
    4. Exhaust gas turbocharger according to one of claims 1 to 3, characterized in that the Zugdruckanker (15) outside the compressor housing (2) and outside of the turbine housing (10) extend.
    [5]
    5. Exhaust gas turbocharger according to one of claims 1 to 4, characterized in that the first annular flange (13) absorbs in case of damage to the compressor housing (2) acting axial forces.
    [6]
    6. Exhaust gas turbocharger according to one of claims 1 to 5, characterized in that the second annular flange (14) receives in case of damage to the turbine housing (14) acting axial forces.
    [7]
    7. Exhaust gas turbocharger according to one of claims 1 to 6, characterized in that the support structure (12) the turbine housing (10) and the compressor housing (2) or the corresponding housing parts (4, 9) thereof clamped by compressive forces such that by the Compressive forces caused compressive stresses in the housings (2, 10) or housing parts (4, 9) are greater in terms of magnitude than in the event of damage to the housing (2, 10) or housing parts (4, 9) acting tensile stresses.
    [8]
    8. Exhaust gas turbocharger according to one of claims 1 to 7, characterized in that the compressor housing (2) comprises a spiral housing (4) thereof mounted insert (5) made of a ductile material.
    [9]
    9. Exhaust gas turbocharger according to one of claims 1 to 8, characterized in that the outflow housing (9) of the turbine housing (10) consists of a ductile material.
    [10]
    A support structure (12) for an exhaust gas turbocharger having a turbine (11) for venting of exhaust gas and for the recovery of energy, and a compressor (1) for the compression of charge air by means of the energy obtained in the turbine, the turbine a multi-part turbine housing (10) and a turbine rotor positioned in the turbine housing, and wherein the compressor comprises a multi-part compressor housing (2) and a compressor rotor positioned in the compressor housing and coupled to the turbine rotor, the support structure (12) housing the turbine housing (10) and the compressor housing (2) is clamped by compressive forces, and wherein the support structure (12) has an outer annular flange (13) which can be mounted on the outside of the compressor housing (2) and a second annular flange (14) which can be mounted on the outside of the turbine housing (10) ) Sin under tensioning the turbine housing (10) and the compressor housing (2) d.
    [11]
    11. Support structure (12) according to claim 10, characterized in that it is designed according to one of claims 2 to 7.
    类似技术:
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    EP1727970A1|2006-12-06|Method and apparatus for establishing the state of the rotor of a turbomachine
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    DE102018107304A1|2019-10-02|turbocharger
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    同族专利:
    公开号 | 公开日
    DE102015014030A1|2017-05-04|
    CH711752B1|2020-12-15|
    KR20170051288A|2017-05-11|
    JP2017089616A|2017-05-25|
    CN106907196A|2017-06-30|
    JP6755766B2|2020-09-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE531262C|1929-02-13|1931-08-07|Escher Wyss Maschf Ag|Housing for machines that are under high working pressure, especially for steam and gas turbines, centrifugal pumps and centrifugal compressors|
    GB1085329A|1964-01-21|
    DE3631356A1|1986-09-15|1988-03-24|Bert Steffens|METHOD FOR PRODUCING HOUSING|
    DE4432073C2|1994-09-09|2002-11-28|Abb Turbo Systems Ag Baden|Device for fastening turbochargers|
    DE19824421A1|1998-05-30|1999-12-02|Bmw Rolls Royce Gmbh|Housing formation on a gas turbine|
    TW576886B|2001-05-04|2004-02-21|Abb Turbo Systems Ag|Turbocharger having a radial-flow compressor and burst-protection arrangement for a radial-flow compressor of a turbocharger|
    EP2090755A1|2008-02-14|2009-08-19|ABB Turbo Systems AG|Turboloader housing|
    DE102013013571A1|2013-08-14|2015-02-19|Man Diesel & Turbo Se|turbocharger|
    法律状态:
    2018-07-31| PFA| Name/firm changed|Owner name: MAN ENERGY SOLUTIONS SE, DE Free format text: FORMER OWNER: MAN DIESEL AND TURBO SE, DE |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102015014030.2A|DE102015014030A1|2015-10-31|2015-10-31|Exhaust gas turbocharger and support structure for an exhaust gas turbocharger|
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