• 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 burst protection device (1) for a gas turbine machine, in particular a gas radial turbine machine, formed from at least one pipe section (2) of a pipe in the form of an arc segment of the pipe section (2), for mounting around a turbine wheel housing (10) and / or compressor housing of the gas turbine machine , wherein the arc segment of the pipe section (2) viewed in the circumferential direction of the pipe has an interruption (U) for the gas or air outlet of the turbine wheel housing (10) or compressor housing.
    公开号:CH715050A2
    申请号:CH00632/19
    申请日:2019-05-14
    公开日:2019-12-13
    发明作者:Spatz Urban；Braun Steffen；Albrecht Daniel；Denkel Harald；Weihard Stefan；Haas Bernd；Niebuhr Johannes
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    Description: The invention relates to a burst protection device for a gas turbine engine according to claim 1. The invention also relates to an internal combustion engine with such a gas turbine machine, and to a gas turbine machine with such a burst protection device.
    A turbocharger, also called turbocharger (ATL) or colloquially turbo, is an optional assembly of an internal combustion engine and is used to increase performance or efficiency.
    An exhaust gas turbocharger consists of a compressor and a turbine, which are connected to one another by a common shaft. The turbine, driven by the exhaust gases from the internal combustion engine, supplies the drive energy for the compressor. In most cases, radial compressors and centripetal turbines are used for turbochargers.
    The basic principle is to use part of the energy of the engine exhaust gas to increase the pressure in the intake system and thereby to convey more outside air into the cylinder than in the uncharged engine, which leads to an increase in efficiency. Turbochargers can thus use the pressure (accumulation charge) and the kinetic energy of the exhaust gases (impact charge). With an additional charge air cooler, a higher working pressure can be achieved in the cylinder at the same temperature.
    Conceptually, the compressor and the turbine have an air guide spiral, in the turbine this serves to guide the exhaust gases and in the compressor to transport the intake air for the engine.
    Currently known high-performance turbomachines, such as exhaust gas turbochargers of supercharged internal combustion engines, pose a high risk to their surroundings in the event of a technical failure of the rotating parts of the turbocharger. Especially when operating in situations in which people can be in the immediate vicinity of the turbomachine , it must be ensured that in the event of a failure, ie When bursting, all parts are caught safely and completely and cannot injure anyone.
    In order to prevent the penetration of fragments through the outer wall of the turbocharger and thus the danger to people or damage to adjacent machine parts, the turbochargers were provided in the area radially outside the turbine impeller with relatively thick walls in the turbine housing in the past. However, these solutions have a number of disadvantages, e.g. the considerable additional weight of the housing and the risk of blowholes due to the poor castability of such a turbine housing. In addition, such a thickened housing heats up differently, which can lead to thermal cracks.
    DE 4 223 496 A1 discloses a device for reducing the kinetic energy of bursting parts for machines rotating at high speed. This device, which is arranged in the interior of an axial turbine, consists of several interconnected protective rings, between each of which a crumple zone made of ductile material is formed. However, such a solution is not suitable for radial turbines because, due to their radial gas entry, no burst protection devices can be used in the radial region of the turbine.
    From US 4 875 837 A a multi-layer burst protection is known, in which a heat-insulating material is introduced in an iron plate, and which is attached at a distance to a turbine housing and to a spiral part of the turbine housing. A disadvantage of the burst protection described there, however, is the fact that this burst protection only surrounds a 120 ° angular range of the spiral part of the housing and is therefore partially open.
    From the document DE 19 640 654 A1 a further burst protection is known, which is provided outside a gas inlet housing of a radial turbine for a turbocharger, which is designed as a spiral sheet metal shell and is detachably connected to the gas inlet housing by means of several screws.
    Furthermore, solutions are known in which curved sheets are arranged as a burst protection around the spiral, which, however, are structurally simple in order to reduce the manufacturing costs, but which have only limited strength and rigidity and also in terms of behavior behave unfavorably in response to the natural frequencies occurring during operation.
    It is therefore an object of the present invention to avoid said disadvantages and to provide an improved, easy-to-manufacture and safe burst protection device for radial turbines of turbochargers and thus to further improve the safety of turbochargers, reducing the adverse effects due to the natural frequencies occurring during operation should be.
    [0013] This object is achieved by the combination of features according to patent claim 1.
    A basic idea of the invention is to form a burst protection device from one or more pipe sections arranged in layers, which are each formed around the spiral of the turbine and / or the compressor. According to the invention, a conventional pipe is used for this purpose, from which a pipe segment of the desired width is cut off and cut at the position for the gas outlet or air outlet, so that an arc segment is obtained.
    It is further advantageous if the tube section of the tube is designed in the form of an arc segment. In a preferred embodiment of the invention it is provided that the arc segment from the tube section approximately
    CH 715 050 A2 has a% of the circumference of the tube or the arc segment of the tube section forms an arc of approximately 260 ° to 280 °.
    The pipe section for mounting around a turbine wheel housing and / or compressor housing of a gas turbine engine, in particular a gas radial turbine machine, is designed such that the arc segment of the pipe section, viewed in the circumferential direction of the pipe, has an interruption for the gas or air outlet of the turbine wheel housing or compressor housing.
    It is particularly advantageous if at least one end of the curved segment of the tube section forms a non-curved, flat section. As a result, the burst protection can also lead you to the gas or air outlet of the turbine wheel housing or compressor housing.
    Another advantage is an embodiment in which one or more ropes, preferably metallic wire ropes, are guided along and are fastened to the tube section on the outer jacket of the arc segment of the tube section. Here, e.g. two or more parallel metal ropes are stretched around the outer jacket, so that the additional tensioning by the ropes reduces the wall thickness of the pipe components, which ropes the risk of bursting the pipe section d. H. reduce the burst protection formed from the pipe section. This also prevents large components from escaping radially.
    In a further preferred embodiment of the invention it is provided that the ropes are fastened to the pipe section by means of rope tensioning elements in order to be able to adjust the tension of the ropes. It is further preferred if the ropes are fastened to the pipe section by means of spring elements. Due to such spring elements, the pipe sections can be made with smaller wall thicknesses and possibly smaller rope diameters, since the kinetic energy that occurs can be better broken down by the spring elements in the event of a burst by a kind of “braking effect” counteracting the emerging components by the elastic arrangement of the cables.
    Likewise, projecting holding means, preferably webs, to which the ropes are attached directly or indirectly, can advantageously be attached to the curved segment of the tube section.
    In a further advantageous embodiment of the invention it is provided that the burst protection device is formed in several parts, preferably from a plurality of pipe sections arranged one above the other. With such a structure, on the one hand a modular solution adapted to the application can be generated and the individual tubes can have thinner wall thicknesses.
    Another aspect of the present invention relates to a gas turbine engine, in particular a gas radial turbine engine, with a burst protection device as described above, which is arranged around the turbine wheel housing or compressor housing of the gas turbine engine. A burst protection device can of course also be arranged around the turbine wheel housing and the compressor housing.
    In an advantageous embodiment of the gas turbine engine it is provided that the turbine wheel housing and / or the compressor housing form a spiral gas duct, which has an exhaust gas supply or an air supply (at the compressor) on one side and the burst protection device encompasses the gas duct so that the interruption of the Burst protection device provides a passage for the exhaust gas supply or the air supply.
    Another aspect of the present invention relates to an internal combustion engine with a gas turbine engine designed in this way.
    Other advantageous developments of the invention are characterized in the dependent claims or are shown below together with the description of the preferred embodiment of the invention with reference to the figure. It shows:
    Fig. 1 shows an embodiment of a bursting device according to the present invention.
    The invention is described in more detail below with reference to FIG. 1. 1 shows a perspective view of an exemplary embodiment of a burst protection device 1 in a mounting situation, mounted around a turbocharger housing.
    Shown is the turbine housing 10 of a gas turbine engine, in which, in the operating state, a turbine wheel (not shown) driven by an exhaust gas flow through the spiral gas duct 11 rotates.
    The burst protection device 1 is formed from a tube section 2 of a tube in the form of an arc segment of the tube section 2 and arranged in its assembly position around the turbine wheel housing 10, the arc segment of the tube section 2 viewed in the circumferential direction of the tube having an interruption U. The use of raw materials with high elongation at break and impact strength results in optimized energy degradation with relatively small component sizes, which brings weight and cost advantages.
    The turbine wheel housing 10, which forms the spiral gas duct 11, has an exhaust gas supply 12 on one side, the burst protection device 1 encompassing the gas duct 11 such that said interruption U provides a passage for the exhaust gas supply 12.
    CH 715 050 A2 It can also be seen that the curved segment of the tube section 2 forms an arc of approximately 270 ° and that the upper end of the curved segment of the tubular section 2 in FIG. 1 forms a non-curved, flat section 2a in its extension ,
    On the outer jacket 3 of the arc segment of the pipe section 2, two ropes 4, namely metallic wire ropes run along, which are each attached to the end of the pipe section 2, namely on the end of the arc segment of the pipe section 2 projecting outwardly holding means 6. This is a holding means 6 formed on the flat portion 2a. The holding means 6 are each attached to the outer jacket 3 of the pipe section 2 as webs projecting outwards and the cables 4 are attached to them indirectly via cable tensioning elements 5 and spring elements 7.
    The rope tensioning elements 5 are arranged between the spring element 7 and the respective rope 4, so that the tension of the ropes can be adjusted.
    The invention is not limited in its implementation to the preferred exemplary embodiments specified above. Rather, a number of variants are conceivable which make use of the solution shown, even in the case of fundamentally different types, e.g. the assembly sequence of the rope tensioning elements 5 and spring elements 7 can also be reversed, or individual ropes without spring elements can only be attached to the holding means by means of turnbuckles.
    权利要求:
    Claims (11)
    [1]
    claims
    1. Burst protection device (1) formed from at least one pipe section (2) of a pipe in the form of an arc segment of the pipe section (2), for mounting around a turbine wheel housing (10) and / or compressor housing of a gas turbine engine, in particular a gas radial turbine machine, the arc segment of the pipe section (2) viewed in the circumferential direction of the tube, has an interruption (U) for the gas or air outlet of the turbine wheel housing (10) or compressor housing.
    [2]
    2. burst protection device (1) according to claim 1, characterized in that the arc segment of the tube section (2) forms an arc of about 260 ° to 280 °.
    [3]
    3. Burst protection device (1) according to claim 1 or 2, characterized in that at least one end of the arc segment of the pipe section (2) forms a non-curved, flat section.
    [4]
    4. Burst protection device (1) according to one of the preceding claims, characterized in that one or more ropes (4), preferably metallic wire ropes, run along the outer jacket (3) of the arc segment of the tube section (2) and are fastened to the tube section (2).
    [5]
    5. burst protection device (1) according to claim 4, characterized in that the ropes (4) by means of rope tensioning elements (5) on the pipe section (2) are fixed in order to be able to adjust the tension of the ropes.
    [6]
    6. burst protection device (1) according to claim 4 or 5, characterized in that the ropes (4) by means of spring elements (5) on the pipe section (2) are attached.
    [7]
    7. burst protection device (1) according to any one of claims 4 to 6, characterized in that the end on the arc segment of the tube section (2) outwardly projecting holding means (6), preferably webs are attached to which the cables (4) directly or indirectly attached are.
    [8]
    8. burst protection device (1) according to any one of the preceding claims, characterized in that the burst protection device (1) is formed in several parts, preferably from a plurality of tubular sections (2) arranged one above the other.
    [9]
    9. A gas turbine machine, in particular a gas radial turbine machine, with a burst protection device (1) according to one of claims 1 to 8, which is arranged around the turbine wheel housing (10) or compressor housing of the gas turbine machine.
    [10]
    10. Gas turbine machine according to claim 9, characterized in that the turbine wheel housing (10) or compressor housing forms a spiral gas duct (11) which has an exhaust gas supply or an air supply on one side and the burst protection device (1) encompasses the gas duct (11) so that the Interruption (U) provides a passage for the exhaust gas supply or the air supply.
    [11]
    11. Internal combustion engine with a gas turbine engine according to one of claims 9 or 10.
    CH 715 050 A2
    类似技术:
    公开号 | 公开日 | 专利标题
    DE102016002701A1|2016-09-15|Turbocharger turbine assembly
    EP0834646A1|1998-04-08|Containment device for the radial turbine of a turbocharger
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    DE102007042767A1|2009-03-12|Multilayer shielding ring for a propulsion system
    DE102009056632A1|2011-06-09|turbocharger
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    DE102004018987B4|2006-03-02|Protective device against bursting turbochargers comprises an endless looped belt of textile fiber material which has a high penetration resistance, and covers at least a part of the turbocharger circumference
    DE3926502A1|1990-03-01|SHELL RING FOR THE LOW PRESSURE LEVEL OF A COMPRESSOR
    DE112015004533T5|2017-07-13|Variable nozzle unit and turbocharger with variable capacity
    CH713506A2|2018-08-31|Turbocharger.
    DE4223496A1|1994-01-20|Reducing kinetic energy of bursting parts in turbines - involves crumple zone between inner and outer rings set between housing and rotor to absorb energy and contain fractured parts
    DE102014108594A1|2014-12-31|Turbocharger arrangement with directly mounted bearing housing
    EP0806547B1|2001-10-10|Axial turbine for turbochargers
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    DE102018114093A1|2019-12-19|Burst protection device for a gas turbine engine
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    CH714390A2|2019-05-31|Turbine and turbocharger.
    DE102018101066A1|2019-07-18|Bursting device for a gas turbine machine
    EP2090755A1|2009-08-19|Turboloader housing
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    EP3452702B1|2020-05-06|Turbine housing for a turbocharger of an internal combustion engine, and turbocharger
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    同族专利:
    公开号 | 公开日
    US20190383162A1|2019-12-19|
    DE102018114093A1|2019-12-19|
    JP2019215003A|2019-12-19|
    CN110594021A|2019-12-20|
    KR20190141089A|2019-12-23|
    RU2019117584A|2020-12-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH0459450B2|1985-09-18|1992-09-22|Hitachi Ltd|
    DE3704197C1|1987-02-11|1987-08-20|Mtu Muenchen Gmbh|Removable burst protection ring|
    DE3830232A1|1988-09-06|1990-03-15|Mtu Muenchen Gmbh|BROKEN PROTECTION RING MADE OF FIBER MATERIAL|
    DE4223496A1|1992-07-17|1994-01-20|Asea Brown Boveri|Reducing kinetic energy of bursting parts in turbines - involves crumple zone between inner and outer rings set between housing and rotor to absorb energy and contain fractured parts|
    DE19640654A1|1996-10-02|1998-04-09|Asea Brown Boveri|Burst protection device for radial turbines of turbochargers|
    DE10220573C1|2002-05-08|2003-07-03|Mtu Friedrichshafen Gmbh|IC engine exhaust gas turbocharger has rupture protection enclosing dangerous section of turbocharger housing|
    WO2009065881A1|2007-11-20|2009-05-28|Mann+Hummel Gmbh|Housing for a radial compressor|
    US9097120B2|2010-08-26|2015-08-04|Honeywell International Inc.|Turbine housing assembly|
    JP5511725B2|2011-03-31|2014-06-04|三菱重工業株式会社|Sheet metal turbine housing|
    WO2013095210A1|2011-12-22|2013-06-27|Volvo Aero Corporation|Containment assembly for a gas turbine engine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102018114093.2A|DE102018114093A1|2018-06-13|2018-06-13|Burst protection device for a gas turbine engine|
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