SE541037C2 - A stopping arrangement, an intake and exhaust system, and a vehicle comprising such a system - Google Patents

A stopping arrangement, an intake and exhaust system, and a vehicle comprising such a system

Info

Publication number
SE541037C2
SE541037C2 SE1550520A SE1550520A SE541037C2 SE 541037 C2 SE541037 C2 SE 541037C2 SE 1550520 A SE1550520 A SE 1550520A SE 1550520 A SE1550520 A SE 1550520A SE 541037 C2 SE541037 C2 SE 541037C2
Authority
SE
Sweden
Prior art keywords
stopping
arrangement
turbine wheel
stopping member
exhaust
Prior art date
Application number
SE1550520A
Other versions
SE1550520A1 (en
Inventor
Erik Halldorf
Pontus Johansson
Original Assignee
Scania Cv Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE1550520A priority Critical patent/SE541037C2/en
Priority to DE102016004770.4A priority patent/DE102016004770A1/en
Publication of SE1550520A1 publication Critical patent/SE1550520A1/en
Publication of SE541037C2 publication Critical patent/SE541037C2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/30—Exhaust heads, chambers, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • F01D21/045—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position special arrangements in stators or in rotors dealing with breaking-off of part of rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/26—Exhaust treating devices having provisions not otherwise provided for for preventing enter of dirt into the device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/01—Purpose of the control system
    • F05D2270/09—Purpose of the control system to cope with emergencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Supercharger (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)

Abstract

A stopping arrangement (20) in an intake and exhaust system of an internal combustion engine, said intake and exhaust system including a turbocharger (1) comprising a turbine wheel (6), a compressor wheel (9), a rotatable shaft (12) connecting said turbine wheel to said compressor wheel, a shaft bearing arrangement (13, 14), and a housing assembly (2). Said stopping arrangement comprises a stopping member (21) positioned downstream of the turbine wheel, said stopping member being configured to stop axial movement of said rotatable shaft in a direction of flow of exhaust gases from the internal combustion engine.

Description

A stopping arrangement. an intake and exhaust system, and a vehicle comprising such a system TECHNICAL FIELD The invention relates to a stopping arrangement in an intake and exhaust system of an internal combustion engine including a turbocharger according to the preamble of claim 1, to an intake and exhaust system according to the preamble of claim 8, and to a motor vehicle comprising such a system.
BACKGROUND AND PRIOR ART Turbochargers are commonly used in motor vehicles driven by internal combustion engines to increase the fuel efficiency and the power of the engine by forcing additional air into its combustion chambers. A turbocharger includes a compressor wheel and a turbine wheel connected to each other by means of a rotatable shaft, suspended by a shaft bearing arrangement. A housing assembly including a turbine housing, a bearing housing and a compressor housing surrounds the rotating components and directs the gas flows through the turbocharger. The turbine wheel is placed in the exhaust tract of the engine and is therefore propelled by the exhaust gas flow. Rotation of the turbine wheel impels rotation of the compressor wheel, which is placed in an air intake tract of the combustion engine. The rotation of the compressor wheel compresses the air provided to the combustion chambers and thereby increases the provided amount of air.
The rotating parts of the turbocharger, i.e. the turbine wheel and the compressor wheel, may be subjected to substantial centrifugal loads and consequently also high material stresses during operation of the engine. Possible defects in the material of the rotating parts may thereby lead to damages on those parts, and in severe cases to a breakdown of the compressor wheel. Damages may also be caused by e.g. wear, fatigue, or particles entering the compressor housing due to a damaged air inlet filter upstream of the compressor wheel. If a compressor wheel fails as a result of such damages, the balance between the compressor wheel and the turbine wheel is destroyed, and this may lead to failure of the turbine wheel and/or damages on the turbine housing as the turbine wheel, or disintegrated parts therefrom, makes contact with the turbine housing. This, in turn, can cause oil from the turbocharger to leak into the exhaust system downstream of the turbine wheel. Furthermore, disintegrated parts from the turbine wheel may exit the turbocharger and follow the flow of exhaust gases.
Downstream of the turbocharger, exhaust systems of internal combustion engines are nowadays commonly equipped with expensive exhaust gas aftertreatment systems including e.g. particulate filters, oxidation catalysts, and selective catalytic reduction (SCR) systems in order to meet increasingly stringent emission regulations. The aftertreatment systems are generally very sensitive, and oil as well as disintegrated parts from the turbine wheel may cause severe harm to such systems. The components of aftertreatment systems are generally expensive to replace, and it is therefore desirable to prevent damages caused by a defect turbocharger.
US 2013/0294947 discloses a turbocharger including a stopping arrangement for axially securing the shaft and the turbine wheel in case of a failure of the compressor wheel, thereby protecting the parts of the exhaust system located downstream of the turbine wheel from damage. The stopping arrangement is placed in the bearing housing between the turbine wheel and the compressor wheel. However, for certain types of turbocharger failures, the disclosed stopping arrangement is inadequate for preventing movement of the turbine wheel in the direction of exhaust gas flow, and thereby also for preventing damages downstream of the turbine wheel, e.g. on an aftertreatment system. Furthermore, the disclosed stopping arrangement is relatively complex since it is built into the bearing housing of the turbocharger. This also makes the stopping arrangement inflexible, since it may put undesired restraints on the turbocharger.
SUMMARY OF THE INVENTION It is a primary objective of the present invention to provide an alternative and, in at least some aspect, improved way of protecting parts of an exhaust system located downstream of the turbine wheel of a turbocharger, such as an exhaust gas aftertreatment system. In particular, it is an objective to provide a stopping arrangement that can efficiently and at a relatively low cost prevent oil leakage from the turbocharger into the exhaust system downstream of the turbine wheel, as well as entry of unwanted particles from the turbocharger into an exhaust gas aftertreatment system. Another objective is to provide a robust and in at least some aspect improved intake and exhaust system including an aftertreatment system and a turbocharger.
At least the primary objective is, according to a first aspect of the present invention, achieved by the stopping arrangement initially defined, characterised in that said stopping arrangement comprises a stopping member positioned downstream of the turbine wheel, said stopping member being configured to stop axial movement of the rotatable shaft in a direction of flow of exhaust gases from the internal combustion engine. By positioning a stopping member downstream of the turbine wheel, it is possible to achieve a simple yet efficient way of preventing the turbine wheel from damaging a turbine housing part of the housing assembly of the turbocharger upon a possible failure of the compressor wheel. If the balance in the turbocharger is for some reason destroyed and the turbine wheel starts to move in the direction of flow of exhaust gases, the stopping member stops the shaft, and thereby also the turbine wheel attached thereto, from axial movement in the direction of exhaust gas flow. Oil leakage from the shaft bearing arrangement is thereby prevented, since sealing members in the bearing housing part of the housing assembly can keep their sealing function in spite of the destroyed balance in the turbocharger. In this way, an exhaust gas aftertreatment system positioned downstream of the turbine wheel is protected from oil leakage that may otherwise destroy e.g. catalysts included in the aftertreatment system.
Since the stopping arrangement is positioned downstream of the turbine wheel, it is possible to either include the stopping arrangement in the housing assembly of the turbocharger, or to provide the stopping arrangement as a separate component, or integrated with another component downstream of the turbine wheel. Thus, the proposed stopping arrangement is very versatile.
According to the first aspect of the invention, the stopping member is arranged to make contact with an end portion of the rotatable shaft if an axial movement of said shaft in the direction of flow exceeds a predetermined threshold distance. The stopping member thus efficiently stops axial movement that may lead to damages on the housing assembly and oil leakage, while allowing free rotation of the shaft and a small axial play thanks to a clearance between the end portion of the shaft and the stopping member.
According to the first aspect of the invention, the stopping member is arranged at an axial distance d1 from said end portion, which distance d1 is smaller than a minimum axial distance between the turbine wheel and a turbine housing part of the housing assembly. In this way, the stopping member stops an axial movement of the shaft before any part of the turbine wheel makes contact with the turbine housing. Keeping the distance d1 between the stopping member and the end portion small is also advantageous from an aerodynamic point of view, since pressure losses are reduced. The axial distance d1 should leave enough clearance for a sufficient axial play while efficiently stopping a harmful axial movement. It should preferably be as small as possible to avoid pressure losses, but large enough to allow thermal expansion of the components during operation and to account for tolerances of the components.
According to an embodiment of the first aspect of the invention, the stopping member is integrated with a component positioned downstream of a turbine housing part of the housing assembly. For example, the stopping member may be integrated with an exhaust pipe or an exhaust valve. Integrating the stopping member with a component separate from the turbocharger makes it possible to safely use a prefabricated turbocharger, which is not equipped with any kind of stopping arrangement, in the intake and exhaust system. The separate stopping arrangement protects expensive exhaust gas aftertreatment systems downstream of the stopping member.
According to an embodiment of the first aspect of the invention, the stopping member is integrated with a turbine housing part of the housing assembly. The stopping member can in this case be well adapted to the turbocharger, e.g. in terms of distance between the stopping member and an end portion of the shaft relative to axial distances within the turbocharger.
According to an embodiment of the first aspect of the invention, the stopping member is in the form of a rod extending in the direction of flow. A rod can be easily and securely attached to e.g. walls of an exhaust pipe, either integrated with the turbocharger or separate from the turbocharger, by means of attachment members extending from the rod to the walls. A rod can also easily be configured such that enough space is provided for exhaust gas flow.
According to a preferred embodiment of the first aspect of the invention, the stopping member has a tapered shape in the direction of flow. The tapered shape is advantageous for the aerodynamic properties of the exhaust gas system, since the stopping member in this embodiment helps optimising the flow of exhaust gases and thereby reduces pressure losses in the system. This embodiment is particularly suitable when the stopping member is in the form of a rod.
According to another embodiment of the first aspect of the invention, the stopping member is integrated with an exhaust valve. The exhaust valve may e.g. be an exhaust valve used for exhaust braking of the internal combustion engine. The stopping member may in this way be efficiently combined with a component already present in the exhaust system.
According to a further embodiment of the first aspect of the invention, the stopping member is positioned such that it stops axial movement of the shaft in the direction of flow only when the exhaust valve is open. For example, if a butterfly valve with a rotatable disc is used, the stopping member may be in the form of a block integrated with the disc and placed on its periphery. When the valve opens, the stopping member rotates with the disc and is positioned right in front of an end portion of the shaft. When the valve is closed, there is no flow of exhaust gases and thus no incentive for the shaft to move along its axis. The stopping member is therefore superfluous when the valve is closed.
According to a second aspect of the invention, at least the primary objective is also achieved by an intake and exhaust system of an internal combustion engine as initially defined, which is characterised in that it comprises the proposed stopping arrangement positioned between the turbine wheel and the aftertreatment system. Advantages as well as advantageous features appear from the above discussion in connection with the proposed stopping arrangement.
According to a third aspect of the invention, the invention also relates to a motor vehicle comprising the intake and exhaust system according to the proposal, in particular, but not exclusively, a heavy motor vehicle such as a bus or a truck.
Other advantageous features as well as advantages of the present invention will appear from the following description.
BRIEF DESCRIPTION OF THE DRAWINGS The invention will in the following be further described by means of example with reference to the appended drawings, wherein Fig. 1a shows a schematic cross section of a turbocharger and a stopping arrangement according to a first embodiment of the invention, Fig. 1b shows a schematic cross section along the line b-b in fig. 1a, Fig. 2 shows a schematic cross section of a turbocharger and a stopping arrangement according to a second embodiment of the invention, and Fig. 3 schematically shows an intake and exhaust system according to an embodiment of the present invention.
DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION Fig. 1 a-b and fig. 2 schematically show cross sections of a turbocharger 1 in an intake and exhaust system of an internal combustion engine and a stopping arrangement 20 according to a first and a second embodiment respectively of the present invention. Since the components of the turbocharger are to a large part identical, the same reference numerals are used for elements having the same function in the two embodiments. The turbocharger 1 in both embodiments comprises a housing assembly 2 that encloses all internal components of the turbocharger 1 and includes a turbine housing part 3, a compressor housing part 4 and a bearing housing part 5. The turbine housing part 3 encloses a turbine wheel 6 and includes a ring shaped inlet channel 7 guiding exhaust gases toward the turbine wheel 6. It further comprises an outlet channel 8 for guiding exhaust gases from the turbine wheel 6 and into an aftertreatment system (see fig. 3) in a direction of flow shown by the arrows. The compressor housing part 4 encloses a compressor wheel 9 and includes an inlet channel 10 for guiding air toward the compressor wheel 9 in a direction of flow shown by the arrows. It further comprises a ring shaped outlet channel 11 for receiving and guiding compressed air away from the compressor wheel 9 and toward the combustion engine after compression. The bearing housing part 5 encloses a rotatable shaft 12 connecting the turbine wheel 6 to the compressor wheel 9. The shaft 12 extends in the direction of a longitudinal axis of rotation and is rotatably mounted by means of a shaft bearing arrangement 13, 14 comprising two radial plain bearings 13 and an axial plain bearing 14. In other words, the shaft 12 is rotatable about its longitudinal axis. The bearing housing part 5 comprises an oil inlet 15 for addition of oil to the bearings 13, 14 and an oil outlet 16 for used oil. The oil has, apart from having a lubricating function, a cooling effect on the turbocharger 1. A sealing member 17 prevents oil from leaking into the space enclosed by the turbine housing part 3, such as into the outlet channel 8. An end portion 18 of the shaft extends into the outlet channel 8 enclosed by the turbine housing part 3.
In the first embodiment shown in fig. 1a-b, the stopping arrangement 20 comprises a stopping member 21 in the form of an internal wall dividing the outlet channel 8 into an upper half 8a and a lower half 8b as can be seen in fig. 1b. The stopping member 21 is thus integrated with the turbine housing part 3. An alternative is to design the stopping member in the form of internal walls dividing the outlet channel into three or four chambers, or to have attachment members in the form of rods connecting the inner wall of the turbine housing part 3 to the stopping member, which can in that case be in the form of a rod extending in the direction of flow of exhaust gases. In other embodiments, the stopping member can be integrated with e.g. an exhaust pipe connected to the turbine housing part instead of being integrated with the turbine housing part.
The stopping member 21 is arranged to make contact with the end portion 18 of the rotatable shaft 12 if the shaft 12 moves more than a predetermined threshold distance in the direction of flow of exhaust gases. For this purpose, the stopping member 21 is arranged at a smaller axial distance d1 from said end portion 18 than a minimum axial distance between the turbine wheel 6 and an inner wall of the turbine housing part 3, wherein “axial distance” refers to the distance in the direction of the longitudinal axis of rotation of the shaft 12. The axial distance d1 between the end portion 18 and the stopping member 21 depends e.g. on the design of the turbine wheel 6 and the turbine housing part 3.
When exhaust gases flow through the ring shaped inlet channel 7 via the turbine wheel 6 and into the outlet channel 8, they act to displace the turbine wheel 6 in the direction of flow of exhaust gases, i.e. in the axial direction of the shaft 12. However, the turbine wheel 6 is balanced by the compressor wheel 9, and as long as the compressor wheel 9 is intact, the shaft 12 and the turbine wheel 6 are prevented from axial displacement. In case of a failure of the compressor wheel 9, the balance is destroyed. Due to the forces acting on the turbine wheel 6, the shaft 12 may in this case start to move in the axial direction, further into the outlet channel 8. When the end portion 18 of the shaft 12 comes into contact with the stopping member 21, the movement is stopped. Oil leakage from the bearing housing part 5 past the sealing member 17 is thereby prevented, as well as contact between the rotating turbine wheel 6 and the inner wall of the turbine housing part 3.
In the second embodiment shown in fig. 2, the intake and exhaust system further comprises an exhaust pipe 25 connected to the turbine housing part 3. In the exhaust pipe 25, a stopping member 27 is provided integrated with an exhaust valve 26 in the form of a butterfly valve, i.e. comprising a circular disc 28 rotatable about an axis between an open state and a closed state. Here, the exhaust valve 26 is shown in its open state. The exhaust valve 26 is configured to be sufficiently rigid and positioned such that when open, the stopping member 27 on the periphery of the disc 28 prevents undesired axial movement of the shaft 12 by contacting its end portion 18. When the exhaust valve 26 is closed, the stopping member 27 is rotated away from the end portion 18 of the shaft 12. At the same time, the exhaust gas flow is heavily reduced and the stopping member 27 is not needed, since the turbine wheel 6 rotates at lower speed and the risk of failure or breakage is consequently reduced. Also in the second embodiment, the stopping member 27 is arranged to make contact with the end portion 18 of the rotatable shaft 12 if the shaft 12 moves more than a predetermined threshold distance in the direction of flow of exhaust gases. It is therefore arranged at a smaller axial distance d1 from said end portion 18 than a minimum axial distance between the turbine wheel 6 and an inner wall of the turbine housing part 3.
Fig. 3 very schematically shows an intake and exhaust system of an internal combustion engine, e.g. in a motor vehicle, according to the present invention. The intake and exhaust system comprises a turbocharger 1 as described above comprising a housing assembly 2, a turbine wheel 6 positioned downstream of a cylinder 30 of the internal combustion engine, a compressor wheel 9 positioned upstream of said internal combustion engine, and a rotatable shaft 12 connecting the turbine wheel 6 to the compressor wheel 9. The system further comprises an exhaust gas aftertreatment system 31 positioned downstream of the turbine wheel 6, an exhaust channel arrangement 32 configured to carry exhaust gases from the internal combustion engine via the turbine wheel 6 to the aftertreatment system 31, and an inlet channel arrangement 33 for carrying inlet air via the compressor wheel 9 to the internal combustion engine. The intake and exhaust system further comprises a stopping arrangement 20 as described above positioned between the turbine wheel 6 and the aftertreatment system 31 .
The invention is of course not in any way restricted to the embodiments described above. On the contrary, many possibilities to modifications thereof will be apparent to a person with ordinary skill in the art without departing from the basic idea of the invention such as defined in the appended claims.

Claims (9)

1. A stopping arrangement (20) in an intake and exhaust system of an internal combustion engine, said intake and exhaust system including a turbocharger (1) comprising a turbine wheel (6), a compressor wheel (9), a rotatable shaft (12) connecting said turbine wheel (6) to said compressor wheel (9), a shaft bearing arrangement (13, 14), and a housing assembly (2), wherein said stopping arrangement (20) comprises a stopping member (21, 27) positioned downstream of the turbine wheel (6), said stopping member (21, 27) being configured to stop axial movement of said rotatable shaft (12) in a direction of flow of exhaust gases from the internal combustion engine, characterised in that the stopping member (21, 27) is arranged to make contact with an end portion (18) of the rotatable shaft (12) if an axial movement of said shaft (12) in the direction of flow exceeds a predetermined threshold distance, wherein the stopping member (21, 27) is arranged at an axial distance d1 from said end portion (18), which distance d1 is smaller than a minimum axial distance between the turbine wheel (6) and a turbine housing part (3) of the housing assembly (2).
2. The stopping arrangement (20) according to claim 1, wherein the stopping member (27) is integrated with a component positioned downstream of a turbine housing part (3) of the housing assembly (2).
3. The stopping arrangement (20) according to claim 1, wherein the stopping member (21) is integrated with a turbine housing part (3) of the housing assembly (2).
4. The stopping arrangement (20) according to claim 2 or 3, wherein the stopping member is in the form of a rod extending in the direction of flow.
5. The stopping arrangement (20) according to claim 4, wherein the stopping member has a tapered shape in the direction of flow.
6. The stopping arrangement (20) according to claim 2, wherein the stopping member (27) is integrated with an exhaust valve (26).
7. The stopping arrangement according to claim 6, wherein the stopping member (27) is positioned such that it stops axial movement of the shaft (12) in the direction of flow only when the exhaust valve (26) is open.
8. An intake and exhaust system of an internal combustion engine, comprising: - a turbocharger (1) comprising a turbine wheel (6) positioned downstream of said internal combustion engine, a compressor wheel (9) positioned upstream of said internal combustion engine, a rotatable shaft (12) connecting the turbine wheel (6) to the compressor wheel (9), a shaft bearing arrangement (13, 14), and a housing assembly (2), - an exhaust gas aftertreatment system (31) positioned downstream of the turbine wheel (6), - an exhaust channel arrangement (32) configured to carry exhaust gases from the internal combustion engine via the turbine wheel (6) to the aftertreatment system (31), - an inlet channel arrangement (33) for carrying inlet air via the compressor wheel (9) to the internal combustion engine, characterised in that the intake and exhaust system comprises a stopping arrangement (20) according to any one of the preceding claims positioned between the turbine wheel (6) and the aftertreatment system (31) .
9. A motor vehicle, characterised in that it comprises the intake and exhaust system according to claim 8.
SE1550520A 2015-04-29 2015-04-29 A stopping arrangement, an intake and exhaust system, and a vehicle comprising such a system SE541037C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE1550520A SE541037C2 (en) 2015-04-29 2015-04-29 A stopping arrangement, an intake and exhaust system, and a vehicle comprising such a system
DE102016004770.4A DE102016004770A1 (en) 2015-04-29 2016-04-20 Stop assembly, intake and exhaust system and vehicle comprising such a system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1550520A SE541037C2 (en) 2015-04-29 2015-04-29 A stopping arrangement, an intake and exhaust system, and a vehicle comprising such a system

Publications (2)

Publication Number Publication Date
SE1550520A1 SE1550520A1 (en) 2016-10-30
SE541037C2 true SE541037C2 (en) 2019-03-12

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SE1550520A SE541037C2 (en) 2015-04-29 2015-04-29 A stopping arrangement, an intake and exhaust system, and a vehicle comprising such a system

Country Status (2)

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DE (1) DE102016004770A1 (en)
SE (1) SE541037C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017203585A1 (en) 2017-03-06 2018-09-06 Continental Automotive Gmbh Turbocharger for an internal combustion engine and turbine housing
DE102017205457A1 (en) * 2017-03-30 2018-10-04 Continental Automotive Gmbh Turbocharger for an internal combustion engine and turbine housing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010043198B4 (en) 2010-11-01 2022-06-02 Abb Schweiz Ag Burst protection for an exhaust gas turbocharger

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Publication number Publication date
SE1550520A1 (en) 2016-10-30
DE102016004770A1 (en) 2016-11-03

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