• 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 for relaxing a first medium, said turbine having a turbine rotor (5) and a turbine housing, with a compressor for compressing a second medium using energy recovered in the turbine upon expansion of the first medium, wherein the compressor with the turbine rotor (5) coupled via a shaft compressor rotor and a compressor housing, with a bearing housing (9) in which the turbine rotor (5) and the compressor rotor coupling shaft (8) is mounted, with a bearing housing (9) a bearing housing cover (16) bounding the turbine side, and with a turbine cover (17) delimiting the turbine on a side facing the bearing housing (9), which adjoins the bearing housing cover (16) and which with a section (17a) into one Recess (16a) of the bearing housing cover (16) protrudes. At a the recess (16 a) of the bearing housing cover (16) outside limiting portion (16 b) of the bearing housing cover (16), the outside of the in the recess (16 a) of the bearing housing cover (16) projecting portion (17 a) of the turbine cover (17) adjoins, on an the turbine rotor (5) facing side of the bearing housing cover (16) an oil-collecting lip (22) is formed.
    公开号:CH714152A2
    申请号:CH00930/18
    申请日:2018-07-26
    公开日:2019-03-15
    发明作者:Bozek Lukas；Holik Petr
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    Description [0001] The invention relates to a turbocharger.
    Fig. 1 shows the basic, known from the prior art, construction of a turbocharger 1. The turbocharger 1 has a turbine 2 for relaxing a first medium, in particular for the relaxation of exhaust gas of 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 during the expansion of the first medium.
    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 connected to both the turbine housing 4 and the compressor housing 5. Furthermore, FIG. 1 shows a compressor-side muffler 10.
    The turbine housing 4 of the turbine 2 comprises a Zuströmgehäuse 11 and a discharge housing 12. About the Zuströmgehäuse 11 which can be supplied to the turbine rotor 5 in the region of the turbine 2 to relaxing first medium. About the outflow housing 12 flows in the region of the turbine rotor 5 relaxed first medium away from the turbine 2.
    The turbine housing 4 comprises in addition to the Zuströmgehäuse 11 and the outflow housing 12 an insert 13, wherein the insert 13 extends in particular in the region of the Zuströmgehäuses 11, adjacent to the turbine rotor 5 radially outside adjacent to blades 14 of the turbine rotor. 5
    The turbine housing 4 further comprises a nozzle ring 15. The nozzle ring 15 is also referred to as Turbinenleitapparat.
    Furthermore, Fig. 1 in the connection region of Zuströmgehäuse 11 and bearing housing 9 a bearing housing cover 16 and a turbine cover 17th
    2 and 3 show further details of a turbocharger known from the prior art in the region of the bearing housing cover 16 and the turbine cover 17, wherein the bearing housing cover 16, the bearing housing 9 and the turbine cover 17, the turbine 2 axially limited, and wherein the turbine cover 17 adjoins the bearing housing cover 16 in the axial direction. Fig. 2 can be seen that the turbine cover 17 protrudes radially outward and above with a portion 17a in a recess 16a of the bearing housing cover 16, wherein radially outside to the portion 17a of the turbine cover 17, a portion 16b of the bearing housing cover 16 connects, which Recess 16a of the bearing housing cover 16 is limited radially outward.
    During operation of the turbocharger oil can escape from the bearing housing 9, via a formed between the bearing housing cover 16, namely the portion 16b of the bearing housing cover 16, and the bearing housing 9 sealing gap 18. This sealing gap 18 is sealed by a sealing element 19. Nonetheless, as can be seen from the arrow 20 of FIG. 2, oil can escape from the bearing housing 9 in the direction of the turbine 2 via this sealing gap 18.
    In known from the prior art turbochargers this oil, which flows in the direction of the arrow 20 through the sealing gap 18 between the bearing housing cover 16 and bearing housing 9 flows in the direction of the arrows 21 initially on the bearing housing cover 16 along and then passes into a gap between the bearing housing cover 16 and turbine cover 17, and then flows as shown in FIG. 3 over the gap between the bearing housing cover 16 and the turbine cover 17 down and can finally reach the environment. This is a disadvantage.
    On this basis, the present invention seeks to provide a novel turbocharger.
    This object is achieved by a turbocharger according to claim 1. According to the invention, at the recess of the bearing housing cover outside limiting portion of the bearing housing cover, which adjoins the outside of the protruding into the recess of the bearing housing cover portion of the turbine cover, formed on a the turbine rotor side facing the bearing housing cover an oil catch lip.
    The oil collecting lip captures oil which flows over the sealing gap between the bearing housing cover and bearing housing in the direction of the turbine, and prevents the same can get into a gap between the bearing housing cover and turbine cover. Oil is held on the turbine rotor side facing the turbine cover and passed into a turbine flow channel and burned there. The risk of oil getting into the environment of the turbocharger is reduced.
    Preferably, the oil-collecting lip is formed by a projection and a groove, wherein the projection of the oil-collecting lip has a small distance from the turbine rotor than the groove of the oil-collecting lip. This embodiment of the oil catch lip allows a particularly effective collection of the oil.
    Preferably, the projection of the oil-collecting lip extends from the portion of the bearing housing cover radially inward with an inclined position relative to the radial direction in the direction of the turbine rotor. The groove of the oil-collecting lip is open radially inward and faces the section of the turbine cover projecting into the recess of the bearing housing cover. This enables a particularly effective collection of the oil.
    According to an advantageous embodiment of the invention, an oil collecting slope is formed on the projecting into the recess of the bearing housing cover portion of the turbine cover on the turbine rotor side facing the turbine cover. The oil-collecting lip of the bearing housing cover directs oil onto the oil-collecting slope of the turbine cover, with the oil-collecting slope of the turbine cover directing the oil into a turbine flow passage. The oil slope on the turbine cover supports the action of the oil-collecting lip. The oil-collecting slope also prevents oil from getting into the gap between the bearing housing cover and the turbine cover, allowing it to escape into the environment via this gap. Oil is held on the turbine rotor side facing the turbine cover, guided in a turbine flow channel and burned there.
    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 is an Ouerschnitt through a turbocharger,
    2 shows a detail of a turbocharger according to the prior art,
    3 shows a further detail of a turbocharger according to the prior art;
    4 shows a detail of a turbocharger according to the invention; and FIG. 5 shows a further detail of a turbocharger according to the invention.
    The present invention relates to a turbocharger. The basic structure of a turbocharger according to the prior art as well as the problems of such known from the prior art turbocharger have already been described with reference to FIGS. 1, 2 and 3. In the following, only details of a turbocharger according to the invention will be discussed, namely with reference to FIGS. 4 and 5.
    FIGS. 4 and 5 show details of a turbocharger according to the invention, namely cutouts which correspond to the details of FIGS. 2 and 3 with regard to their positioning. Thus, Fig. 4 shows in particular a bearing housing cover 16 and a turbine cover 17, wherein the bearing housing cover 16, the bearing housing 9 and the turbine cover 17, the turbine 2 axially limited. A radially outer, upper portion 17a of the turbine cover 17 protrudes into a recess 16a of the bearing housing cover 16, wherein this recess 16a is bounded radially outwardly by a portion 16b of the bearing housing cover 16, which forms the sealing gap 18 with the bearing housing 9.
    When turbocharger according to the invention it is provided that at the recess 16a of the bearing housing cover 16 outside limiting portion 16b of the bearing housing cover 16, which adjoins the outside in the recess 16a projecting portion 17b of the turbine cover 17, an oil trap lip 22 is formed, and Although on the turbine rotor 5 and the blades 14 of the turbine rotor 5 facing side of the bearing housing cover sixteenth
    4 is formed by a projection 23 and a groove 24, wherein the projection 23 has a smaller distance 5 and the blades 14 of the turbine rotor 5 than the groove 24th
    The projection 23 of the oil-collecting lip 22 extends radially from the portion 16b of the bearing housing cover 16, with an inclined position relative to the radial direction in the direction of the turbine rotor 5. The groove 24 of the oil-collecting lip 22 is open radially inward and the portion 17a of the turbine cover 17, which projects into the recess 16a of the bearing housing cover 16 faces.
    Oil, which flows through the sealing gap 18 between the bearing housing 9 and the bearing housing cover 16 in the direction of the arrow 20 in the direction of the turbine rotor 5, reaches the oil-collecting lip 22 and is caught on the same, both in the region of the projection 23rd As well as in the region of the groove 24. This can be avoided that the oil penetrates into a gap between the bearing housing cover 16 and the turbine cover 17.
    In a further development of the invention it is provided that at the projecting into the recess 16a of the bearing housing cover 16 portion 17a of the turbine cover 17 on the turbine rotor 5 and the blades 14 thereof facing side an oil catch 25 is formed, wherein the oil-collecting lip 24th Oil, which is caught on the same, on the oil sump slope 25 directs or passes. The Ölfangschräge 25 then performs the oil in the direction of arrows 26 on the side facing the turbine rotor 5 side of the turbine cover 17 and passes the same in a turbine flow channel 27 of the turbine or the inflow housing 11 of the turbine housing 4 of the turbine 2. Here, the oil is burned, so there is no danger that it escapes into the environment.
    According to FIG. 4, the oil-collecting lip 22 projects beyond the oil-collecting slope 25 radially at least in sections, specifically at a distance in the radial direction. In this case, the oil-collecting slope 25 is beveled in such a way that, viewed in the axial direction, an outer tip of the section 17a of the turbine cover 17 neither covers the projection 22 nor the groove 24 of the oil-collecting lip 22.
    Oil trapped on the oil-collecting lip 22 can pass unhindered onto the oil-collecting slope 25 and be guided by it in the direction of the arrows 26 in the direction of the turbine flow channel 27.
    Viewed in the axial direction, the radially outer tip of the portion 17a of the turbine cover 17 has a greater distance from the turbine rotor 5 and the blades 14 thereof than the sealing lip 22, namely as the projection 23 and the groove 24 of the oil-collecting lip 22nd
    With the invention, oil which escapes through the sealing gap 18 between the sealing cover 16 and the bearing housing 9 from the bearing housing 9, safely dissipated in the turbine flow channel 27 of the inlet housing 11 of the turbine housing 4 and burned there. The risk that such oil enters the environment via a gap between the bearing housing cover 16 and the turbine cover 17 is minimized.
    DESCRIPTION OF SYMBOLS Turbocharger 2 Turbine 3 Compressor 4 Turbine housing 5 Turbine rotor 6 Compressor housing 7 Compressor rotor 8 Shaft 9 Bearing housing 10 Silencer 11 Influx housing 12 Outflow housing 13 Insert 14 Blade 15 Nozzle ring 16 Bearing housing cover 16a Recess 16b Section 17 Turbine cover 17a Section 18 Sealing gap 19 Seal 20 Oil 21 Oil 22 Oil-collecting lip 23 Projection 24 Groove 25 Oil-collecting slope
    权利要求:
    Claims (8)
    [1]
    claims
    A turbocharger (1) having a turbine (2) for expanding a first medium, the turbine (2) having a turbine rotor (5) and a turbine housing (4) with a compressor (3) for compressing a second medium Use of energy obtained in the turbine (2) during expansion of the first medium, wherein the compressor (3) has a compressor rotor (7) coupled to the turbine rotor (5) via a shaft (8) and a compressor housing (6) Bearing housing (9), in which the turbine rotor (5) and the compressor rotor (7) coupling shaft (8) is mounted, with a bearing housing (9) on one of the turbine (2) facing side bearing housing cover (16), with a turbine cover (17) delimiting the turbine (2) on a side facing the bearing housing (9), which adjoins the bearing housing cover (16) and which projects with a section (17a) into a recess (16a) of the bearing housing cover (16) , thereby indicated that at a the recess (16a) of the bearing housing cover (16) outside limiting portion (16b) of the bearing housing cover (16), the outside in the recess (16a) of the bearing housing cover (16) protruding portion (17a) of the turbine cover (17) adjoins, on an the turbine rotor (5) facing side of the bearing housing cover (16) an oil-collecting lip (22) is formed.
    [2]
    2. turbocharger according to claim 1, characterized in that the oil-collecting lip (22) by a projection (23) and a groove (24) is formed.
    [3]
    3. turbocharger according to claim 2, characterized in that the projection (23) of the oil-collecting lip (22) has a small distance from the turbine rotor (5) than the groove (24) of the oil-collecting lip (22).
    [4]
    4. A turbocharger according to claim 2 or 3, characterized in that the projection (23) of the oil-collecting lip (22) starting from the portion (16b) of the bearing housing cover (16) radially inwardly with an inclined position relative to the radial direction in the direction of the turbine rotor (16). 5) extends.
    [5]
    5. Turbocharger according to one of claims 2 to 4, characterized in that the groove (24) of the oil-collecting lip (22) facing radially inwardly and the portion (17 a) of the turbine cover (17) faces.
    [6]
    6. turbocharger according to one of claims 1 to 5, characterized in that on the in the recess (16 a) of the bearing housing cover (16) projecting portion (17 a) of the turbine cover (17) on the turbine rotor (5) side facing an oil collecting slope ( 25) is formed.
    [7]
    7. turbocharger according to claim 6, characterized in that the oil-collecting lip (22) the Ölfangschräge (25) outside projects with decorum between them.
    [8]
    8. A turbocharger according to claim 6 or 7, characterized in that the oil-collecting lip (22) of the bearing housing cover (16) oil on the Ölfangschräge (25) of the turbine cover (17) passes, and that the Ölfangschräge (25) of the turbine cover (17) Oil into a turbine flow channel (27) passes.
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3778194A|1972-08-28|1973-12-11|Carrier Corp|Turbocharger structure|
    US4009972A|1975-07-10|1977-03-01|Wallace-Murray Corporation|Turbocharger lubrication and exhaust system|
    US4107927A|1976-11-29|1978-08-22|Caterpillar Tractor Co.|Ebullient cooled turbocharger bearing housing|
    USRE30333F1|1976-11-29|1987-03-03|Caterpillar Tractor Co|Ebullient cooled turbocharger bearing housing|
    US4179247A|1977-01-14|1979-12-18|Wrr Industries, Inc.|Turbocharger having variable area turbine nozzles|
    US4235484A|1979-02-22|1980-11-25|Wallace Murray Corporation|Bearing carrier with integral lubricating sealing features|
    JPS5613513U|1979-07-10|1981-02-05|
    JPS5740634U|1980-08-19|1982-03-04|
    US4482303A|1982-01-27|1984-11-13|Ray Acosta|Turbo-compressor apparatus|
    US4586878A|1984-07-20|1986-05-06|Witchger Eugene S|Accelerating means and method for turbocharger|
    GB8611643D0|1986-05-13|1986-06-18|Sauter R J|Centrifugal impellers|
    US5028208A|1989-01-10|1991-07-02|Ishikawajima-Harima Jukogyo Kabushiki Kaisha|Nozzle blade angle adjustment device for variable geometry turbocharger|
    DE19523259A1|1995-06-27|1996-08-08|Daimler Benz Ag|IC engine exhaust turbo-charger|
    JP3924844B2|1997-05-30|2007-06-06|石川島播磨重工業株式会社|Turbocharger thrust bearing structure|
    JP2002349278A|2001-04-26|2002-12-04|Mtu Friedrichshafen Gmbh|Injection disk for exhaust gas turbocharger|
    JP4753033B2|2006-06-02|2011-08-17|株式会社Ｉｈｉ|Electric turbocharger|
    EP2066886B1|2006-09-29|2013-05-15|BorgWarner Inc.|Sealing system between bearing and compressor housing|
    US8794905B2|2008-04-08|2014-08-05|Ihi Corporation|Turbocharger|
    GB2465279B|2008-11-15|2014-09-24|Cummins Turbo Tech Ltd|Turbomachine|
    DE102010013698A1|2010-04-01|2011-10-06|Continental Automotive Gmbh|Exhaust gas turbocharger, particularly for internal combustion engine of motor vehicle, has bearing housing for supporting rotor shaft and compressor housing for receiving compressor wheel|
    JP2012193709A|2011-03-17|2012-10-11|Toyota Industries Corp|Bearing structure of turbocharger|
    GB2489531B|2011-04-02|2017-02-01|Cummins Ltd|A turbocharger|
    CN104763481B|2014-12-17|2016-09-28|北京航空航天大学|A kind of big damping and the TC bearings body with lubrication with cooling system|
    US10280832B2|2017-03-23|2019-05-07|Garrett Transportation I Inc.|Turbine de-swirl elements|
    DE102017120338A1|2017-09-05|2019-03-07|Man Diesel & Turbo Se|turbocharger|DE102017120338A1|2017-09-05|2019-03-07|Man Diesel & Turbo Se|turbocharger|
    法律状态:
    优先权:
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