• 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:
    A turbocharger having a turbine (1) for relaxing a first medium, with a compressor for compressing a second medium using energy recovered in the turbine upon expansion of the first medium, the turbine (1) comprising a turbine housing (3) having a turbine inlet housing (4) and a turbine rotor (6), the compressor having a compressor housing and a compressor rotor coupled to the turbine rotor (6) via a shaft (7), the turbine housing (3) and the compressor housing each having a bearing housing disposed therebetween (2) in which the shaft (7) is supported, and wherein the turbine inlet housing (4) is formed in a spiral, one-piece and double-walled manner between an outer wall (15) of the turbine inlet housing (4) and an inner wall (16) of the Turbinenzuströmgehäuses (4) a water channel (17) is designed to guide cooling water, and that to the the Water channel (17) delimiting, inner wall (16) of Turbinenzuströmgehäuses (4) on a side facing away from the water channel (17) side of the inner wall (16) directly adjoins a guide channel (18) to be relaxed first medium.
    公开号:CH713633A2
    申请号:CH00178/18
    申请日:2018-02-14
    公开日:2018-09-28
    发明作者:Hossbach Björn；Uhlenbrock Santiago；Paolo Meier；Bozek Lukas；Rost Stefan
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    Description [0001] The invention relates to a turbocharger.
    A turbocharger has a turbine for relaxing a first medium, in particular for the expansion of exhaust gas, as well as a compressor for compressing a second medium, in particular charge air, using the energy obtained in the relaxation of the first medium in the turbine energy. The turbine has a turbine housing and a turbine rotor. The compressor has a compressor housing and a compressor rotor. Turbine rotor and compressor rotor are coupled via a shaft which is mounted in a bearing housing, wherein the bearing housing is connected on the one hand to the turbine housing and on the other hand to the compressor housing.
    The turbine housing of the turbine of the turbocharger has a Turbinenzuströmgehäuse, via which the medium to be relaxed, in particular hot exhaust gas, the turbine rotor can be supplied. The turbine housing is exposed to high thermal loads. Another problem of known Turbinenzuströmgehäusen is the so-called containment safety. Then, especially when the turbine rotor breaks, fragments thereof may cause rupture of the turbine inlet housing. As a result, the life of Turbinenzuströmgehäuses is limited.
    On this basis, the present invention has the object to provide a novel turbocharger. This object is achieved by a turbocharger according to claim 1.
    According to the invention the Turbinenzuströmgehäuse is spirally formed in one piece and double-walled, wherein between a outer wall of Turbinenzuströmgehäuses and an inner wall of Turbinenzuströmgehäuses a water channel for guiding cooling water is formed, and being adjacent to the water channel limiting, inner wall of Turbinenzuströmgehäuses a side facing away from the water channel side of the inner wall immediately adjoins a guide channel of the first medium. By cooling the spiral-like, one-piece and double-walled Turbinenzuströmgehäuses on the guided through the water channel cooling water, the thermal load of Turbinenzuströmgehäuses is reduced. The one-piece and double-walled design of the Turbinenzuströmgehäuses further increases the containment security of the same. As a result, the lifetime of a Turbinenzuströmgehäuses can be extended overall.
    According to a further development of the invention, a peripheral seen in the circumferential direction, between the outer wall and the inner wall ersteckende partition wall is formed within the water channel, which is interrupted in the region of introduced into the outer wall core holes, the partition together with the outer wall and the inner wall is an integral part of the spiral-like, one-piece and double-walled Turbinenzuströmgehäuses. The partition allows unrestricted cooling of the Turbinenzuströmgehäuses on the cooling water. Furthermore, the partition wall increases the rigidity of the turbine inlet housing and its containment safety.
    Preferably, the partition wall divides the water channel into two sub-channels, which are coupled to each other in the partition extending inside core holes, wherein preferably each of the radially extending core holes extends into the partition, so that the partition in the region of each of these core holes is interrupted. These features also serve for simple and effective cooling of the Turbinenzuströmgehäuses and the simple and effective increase of containment safety. As a result, the life of Turbinenzuströmgehäuses can be increased.
    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:
    1 shows a partial cross section in the axial direction through a turbocharger according to the invention in the region of a turbine and a bearing housing; and
    2 shows a cross-section in the radial direction through a Turbinenzuströmgehäuse the turbine of FIG .. 1
    The invention relates to a turbocharger. A turbocharger has a turbine for relaxing a first medium, in particular for relaxing exhaust gas of an internal combustion engine. Further, a turbocharger has a compressor for compressing a second medium, in particular charge air, using energy obtained in the turbine during the expansion of the first medium. The turbine has a turbine housing and a turbine rotor. The compressor has a compressor housing and a compressor rotor. The compressor rotor is coupled to the turbine rotor via a shaft supported in a bearing housing, the bearing housing positioned between the turbine housing and the compressor housing and connected to both the turbine housing and the compressor housing. This basic structure of a turbocharger is familiar to the person skilled in the art. Fig. 1 shows a fragmentary, schematic cross section through a turbocharger in the region of a turbine 1 and a bearing housing 2. The turbine 1 has a turbine housing 3, wherein the turbine housing 3 comprises a Turbinenzuströmgehäuse 4 and an insert 5.
    Furthermore, the turbine 1 has a turbine rotor 6. The turbine rotor 6 of the turbine 1 is coupled via a shaft 7 with a compressor rotor, not shown, of the compressor of the turbocharger, wherein the shaft 7 is mounted in the bearing housing 2.
    The turbine housing 3, namely the Turbinenzuströmgehäuse 4, is connected to the one side 8 of the same with the bearing housing 2, in the illustrated embodiment via a Spannpratzenverbindung 9, which comprises a clamping claw 10 and a plurality of fastening screws 11. The clamping claw 10 covers at this axial side 8 of the Turbinenzuströmgehäuses 4 a portion 12 of the Turbinenzuströmgehäuses 4 and a portion 13 of the bearing housing 2, wherein the fastening screws 11 extend in the axial direction through the clamping claw 10 into the portion 12 of the bearing housing 4 and the Turbinenzuströmgehäuse 4 and the bearing housing 2 jam together. On one of these axial side 8 opposite axial side 14 of the turbine housing 3, the insert 5 is positioned, which protrudes on this axial side opposite the Turbinenzuströmgehäuse 4 and dissipates the relaxed in the region of the turbine rotor 6 first medium from the turbine 1.
    The Turbinenzuströmgehäuse 4 of the inventive turbocharger is spirally formed in one piece and double-walled, namely such that between an outer wall 15 of Turbinenzuströmgehäuses 4 and an inner wall 16 of Turbinenzuströmgehäuses 4, a water channel 17 is formed for cooling water, said cooling water cooling the Turbinenzuströmgehäuses serves. The water channel 17 is therefore radially outwardly bounded by the outer wall 15 and radially inwardly of the inner wall 16 of the spiral-like, one-piece Turbinenzuströmgehäuses 4, wherein at a side facing away from the water channel 17 side of the inner wall 16 directly a guide channel 18 of Turbinenzuströmgehäuses 4 for the still relaxing, first medium connects.
    The water channel 17 reduces the thermal load of Turbinenzuströmgehäuses 4, further increases the water channel 17 of the same containment safety. Overall, the life of the Turbinenzuströmgehäuses 4 can be increased.
    In the illustrated, preferred embodiment, a peripheral seen in the circumferential direction of the Zuströmgehäuses 4 seen in the circumferential direction of the Zuströmgehäuses 4, between the outer wall 15 and the inner wall 16 extending partition wall 19 is formed within the water channel 17, which introduced by itself in the outer wall 15 of the Turbinenzuströmgehäuses 4 is interrupted in the radial direction extending core holes 20 to form recesses 21 in the partition 19. In this case, the water channel 17 is divided by the partition wall 19 into two sub-channels 17a, 17b, wherein these two sub-channels 17a, 17b in the region of the core holes 20 through the extending into the partition wall 19 in the core holes 20, in the region of the partition wall 19, the openings 21st provide, are coupled. This allows a transfer of the cooling water between the two sub-channels 17a, 17b.
    Seen in the circumferential direction are distributed over the outer wall 15 of the Turbinenzuströmgehäuses 4 a plurality of such radially extending core holes 20, wherein each of the radially extending core holes 20 extends into the partition wall 19 so that at several circumferential positions, namely everywhere, where core holes 20 are formed, a passage of the cooling water between the sub-channels 17a, 17b of the water channel 17 is possible.
    As already stated, the Turbinenzuströmgehäuse 4 is made in one piece or monolithic, wherein the partition wall 19 together with the outer wall 15 and the inner wall 16 is an integral part of the integral or monolithic Turbinenzuströmgehäuses 4, which is preferably prepared by casting.
    As already stated, water channel 17 is divided over the partition wall 19 in the two sub-channels 17a, 17b, which are coupled via the apertures 21. In this case, the partial channel 17a extends in the region of the axial side 8 and the partial channel 17b in the region of the axial side 14 of the turbine inlet housing 4.
    In the illustrated, preferred embodiment of the invention, it is provided that the sub-channel 17a extends radially inward in the region of the axial side 8 radially inward so that the same seen in the radial direction has a distance from the portion 12 of Turbinenzuströmgehäuses 4, in which the fastening screws 11 of the clamping claw connection 9 extend into. The extending on the opposite axial side 14 sub-channel 17b also extends radially inward, in such a way that the sub-channel 17b on the axial side 14 of Turbinenzuströmgehäuses 4 seen in the radial direction extends into a portion 22 of Turbinenzuströmgehäuses 4, in which a radially outer portion 23 of the insert 5 comes to rest. As a result, heat can also be effectively dissipated from the insert 5, namely from the section 23 thereof which comes into contact with the still-to-be-relaxed first medium.
    The invention accordingly relates to a turbocharger, the turbine 1 is designed in the illustrated embodiment as a radial turbine. The invention relates to structural details of Turbinenzuströmgehäuses 4 of the turbine housing 3 of the designed as a radial turbine turbine 1 of the turbocharger. By the details according to the invention, heat can be dissipated effectively from the Turbinenzuströmgehäuse to reduce the thermal load of the same. Furthermore, the details serve to increase the containment security. Overall, the life of Turbinenzuströmgehäuses 4 and thus the turbine 1 can be increased.
    List of Reference Numerals [0021] Turbine 2 Bearing housing 3 Turbine housing 4 Turbine inlet housing 5 Insert 6 Turbine rotor 7 Shaft 8 Page 9 Clamping connection 10 Clamp 11 Securing screw 12 Section 13 Section 14 Page 15 Wall 16 Wall 17 Water channel 17a Sub-channel 17b Sub-channel 18 Guide channel 19 Partition wall 20 Core hole 21 Breakthrough 22 Section 23 Section
    权利要求:
    Claims (8)
    [1]
    A turbocharger comprising a turbine (1) for expanding a first medium, a compressor for compressing a second medium using energy recovered in the turbine (1) during expansion of the first medium, the turbine (1) comprising a turbine housing (3 ) having a Turbinenzuströmgehäuse (4) and a turbine rotor (6), wherein the compressor comprises a compressor housing and with the turbine rotor (6) via a shaft (7) coupled compressor rotor, wherein the turbine housing (3) and the compressor housing each with a between the same arranged bearing housing (2), in which the shaft (7) is mounted, are connected, characterized in that the Turbinenzuströmgehäuse (4) such a spiral, one-piece and double-walled formed that between an outer wall (15) of Turbinenzuströmgehäuses (4 ) and an inner wall (16) of the Turbinenzuströmgehäuses (4) is formed a water channel (17) for guiding cooling water, and that adjoining the water channel (17), inner wall (16) of Turbinenzuströmgehäuses (4) on a side facing away from the water channel (17) side of the inner wall (16) directly adjoins a guide channel (18) to be relaxed first medium.
    [2]
    2. Turbocharger according to claim 1, characterized in that within the water channel (17) seen in the circumferential direction encircling, between the outer wall (15) and the inner wall (16) ersteckende partition (19) is formed from the in outer wall (15) introduced, extending in the radial direction core holes (20) is interrupted.
    [3]
    3. turbocharger according to claim 2, characterized in that the partition wall (19) the water channel (17) into two sub-channels (17a, 17b) divided, which are coupled to each other via the in the partition (19) extending in the core hole bores (20) ,
    [4]
    4. A turbocharger according to claim 3, characterized in that each of the radially extending core hole bores (20) extends into the partition wall (19), so that the partition (19) in the region of each of these core holes (20) is interrupted.
    [5]
    5. Turbocharger according to one of claims 2 to 4, characterized in that the partition wall (19) together with the outer wall (15) and the inner wall (16) is part of the spiral-like, one-piece and double-wall Turbinenzuströmgehäuses (4).
    [6]
    6. Turbocharger according to one of claims 1 to 5, characterized in that the Turbinenzuströmgehäuse (4) on a first axial side (8) having a first portion (12) to the bearing housing (2) and on a second axial side (14) with a second portion (22) adjacent to an insert (5), wherein the water channel (17) on the first axial side (8) as viewed in the radial direction at a distance from the first portion (12) ends.
    [7]
    7. turbocharger according to claim 6, characterized in that the water channel (17) on the second axial side (14) seen in the radial direction extends into the second portion (22) into it.
    [8]
    8. turbocharger according to one of claims 1 to 7, characterized in that the turbine is a radial turbine.
    类似技术:
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    同族专利:
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    US20180266273A1|2018-09-20|
    JP2018162788A|2018-10-18|
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    CN108625908A|2018-10-09|
    DE102017105756A1|2018-09-20|
    KR20180106914A|2018-10-01|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017105756.0A|DE102017105756A1|2017-03-17|2017-03-17|turbocharger|
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