WO2015129037A1 - 板金タービンハウジング - Google Patents
板金タービンハウジング Download PDFInfo
- Publication number
- WO2015129037A1 WO2015129037A1 PCT/JP2014/055117 JP2014055117W WO2015129037A1 WO 2015129037 A1 WO2015129037 A1 WO 2015129037A1 JP 2014055117 W JP2014055117 W JP 2014055117W WO 2015129037 A1 WO2015129037 A1 WO 2015129037A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- exhaust gas
- introduction pipe
- scroll
- turbine housing
- sheet metal
- Prior art date
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Classifications
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- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/005—Sealing means between non relatively rotating elements
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- 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
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/243—Flange connections; Bolting arrangements
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- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/026—Scrolls for radial machines or engines
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- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
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- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
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- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1827—Sealings specially adapted for exhaust systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/10—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of charging or scavenging apparatus
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- 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
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- 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
- F05D2230/00—Manufacture
- F05D2230/50—Building or constructing in particular ways
- F05D2230/54—Building or constructing in particular ways by sheet metal manufacturing
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- 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
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/14—Casings or housings protecting or supporting assemblies within
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- 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
- F05D2240/00—Components
- F05D2240/55—Seals
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- 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
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/51—Inlet
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- 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
- F05D2250/00—Geometry
- F05D2250/70—Shape
- F05D2250/75—Shape given by its similarity to a letter, e.g. T-shaped
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- 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
- F05D2260/94—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF]
- F05D2260/941—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF] particularly aimed at mechanical or thermal stress reduction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present disclosure relates to a sheet metal turbine housing structure employed in a turbocharger that generates exhaust pressure for an engine using exhaust gas energy of the engine, and in particular, an exhaust gas introducing pipe portion and a scroll fitted to the inlet of the scroll. Structure to prevent the exhaust gas leaking out from the gap formed between the
- a turbocharger which improves the output by supplying pressurized air into the intake manifold using exhaust gas energy discharged from the engine.
- this turbocharger is mounted and used as a vehicle, weight reduction is particularly required from the viewpoint of improving fuel consumption in recent years, and low heat capacity so as to suppress a decrease in temperature of exhaust gas supplied to a catalyst located downstream.
- a sheet metal turbine housing has come to be used.
- the turbine housing has a function of taking in the exhaust gas of the engine and rotating the turbine wheel using the exhaust gas, so the inlet portion of the turbine housing is heated by the exhaust gas of about 900 ° C. to 1000 ° C. At the outlet portion of the turbine housing, it is heated by the exhaust gas lowered to about 700 ° C. due to a decrease in energy for rotating the turbine wheel when flowing through the turbine wheel. For this reason, the turbine housing is a component having a large temperature difference and a large thermal deformation difference for each part due to the temperature difference.
- Patent Document 1 proposes a sheet metal turbine housing structure.
- a guide pipe corresponding to the turbine housing on the outlet side is disposed so as to overlap and be extensible at the outlet side end portion of the inner housing surrounding the turbine wheel. Therefore, even if the guide pipe is heated and extended relative to the inner housing, there is no possibility that the guide pipe and the inner housing will be cracked. However, there is a gap in the overlapping portion of the guide pipe and the inner housing, and there is a risk that the exhaust gas may leak out from this gap.
- the sheet metal turbine housing according to some embodiments of the present invention A scroll portion formed of a sheet metal to form a spiral exhaust gas passage; An exhaust gas introduction pipe portion for introducing exhaust gas into the exhaust gas passage of the scroll portion at a tubular inlet side end portion of the scroll portion; The inlet side end portion of the scroll portion and the exhaust gas introduction pipe portion are configured to be relatively movable while preventing the exhaust gas leakage.
- the inlet side end portion of the scroll portion and the exhaust gas introduction pipe portion are configured to be relatively movable while preventing the exhaust gas leakage, the high temperature exhaust gas passes through the scroll portion Even when the scroll portion is heated and extended by the exhaust gas, the exhaust gas does not leak from between the inlet end and the exhaust gas introduction pipe, and the inlet end and the exhaust gas introduction pipe are relative to each other. Move to Therefore, a sheet metal turbine housing can be realized which has no fear of damage such as cracks in the scroll portion due to repeated thermal stress, and there is no risk of exhaust gas leaking from between the inlet end and the exhaust gas introduction pipe portion.
- the scroll portion and the exhaust gas introduction pipe portion are separately configured;
- the exhaust gas introduction pipe portion is fitted to the cylindrically formed inlet side end portion of the scroll portion, It is provided in the fitting part which the said inlet-side end of the said scroll part and the said exhaust gas introduction
- the scroll portion and the exhaust gas introduction pipe portion are separately formed, and the exhaust gas introduction pipe portion is fitted to the cylindrically formed inlet side end portion of the scroll portion, and the inlet side end portion of the scroll portion Since the sealing means for closing the annular gap formed in the fitting portion where the exhaust gas introduction pipe portion is fitted is provided, the exhaust gas is heated by the exhaust gas when the exhaust gas is flowing through the scroll portion. Even if it extends, the scroll part can move relative to the exhaust gas introduction pipe part. Further, even if a gap is formed in the fitting portion in which the scroll portion and the exhaust gas introducing pipe portion fit, this gap is closed by the closing means. For this reason, there is no possibility that thermal stress may occur in the scroll portion. Therefore, it is possible to realize the sheet metal turbine housing which is free from the possibility of damage such as cracks in the scroll portion due to the repetition of the thermal stress and the possibility of the exhaust gas leaking out from the gap between the exhaust gas introduction pipe portion and the turbine housing.
- the sealing means is a sealing member disposed along the annular gap and formed so as to be spreadable on the high pressure side of the fitting portion.
- the seal member is formed so as to be able to expand on the high pressure side of the fitting portion, when the exhaust gas tries to intrude into the gap, the seal member is spread in the expansion direction by the exhaust gas. Therefore, the seal member is in close contact with the scroll portion and the exhaust gas introduction pipe portion, and the gap can be closed more reliably.
- the seal member is an annular seal ring.
- the seal member is formed of a metal material and formed in a V-shape, U-shape or C-shape in a cross-sectional view, and an end on the opening side is directed to a direction opposite to an inlet of the scroll portion. It is configured to be installed.
- the seal member is formed of a metal material, the function of the seal member can be exhibited even when the exhaust gas has a relatively high temperature (for example, about 900 ° C. to 1000 ° C.). Further, the seal member is formed in a V-shape, U-shape or C-shape in a cross-sectional view, and the end of the seal member on the opening side is disposed facing the direction opposite to the inlet of the scroll portion Because the exhaust gas tries to penetrate into the gap, the exhaust gas comes in contact with the V-shaped opening surface of the seal member and pushes the seal member in a direction to expand the seal member. Therefore, the seal member is in close contact with the scroll portion and the exhaust gas introduction pipe portion, and the gap can be closed more reliably.
- the exhaust gas introduction pipe portion has a cylindrical introduction pipe main body portion fitted to the inlet side end portion of the scroll portion,
- the sealing means is mounted in a recessed groove annularly provided on an outer peripheral surface of the introduction pipe main body portion of the exhaust gas introducing portion constituting the fitting portion, and of the scroll portion facing the outer peripheral surface
- the inner peripheral surface of the inlet side end portion is formed to be biased from the inside.
- the sealing means is mounted in a recessed groove annularly provided on the outer peripheral surface of the introduction pipe main portion of the exhaust gas introducing portion constituting the fitting portion, and the inlet side end of the scroll portion facing the outer peripheral surface Since the inner peripheral surface of the part is biased from the inside, even when the scroll part is heated and extended, the seal means can be prevented from being displaced with respect to the exhaust gas introduction pipe part. Further, since the sealing means biases the inner peripheral surface of the inlet side end of the scroll portion from the inside, the space between the scroll portion and the exhaust gas introduction pipe portion is obtained even when the scroll portion is heated and extended. It can close the gap.
- the inlet side end of the scroll portion is provided with an annular expansion portion which expands radially outward as it proceeds to the inlet side of the scroll portion
- the exhaust gas introduction pipe portion is provided at a tubular introduction pipe main body portion fitted to the inlet side end portion of the scroll portion, and connected to an exhaust manifold, an engine or the like provided at one end portion of the introduction pipe main body portion.
- the connecting portion is formed in a flange shape that protrudes radially outward and is formed annularly
- the sealing means is elastically deformable and formed in an annular shape, and is mounted on the introduction pipe main body so as to contact the outer peripheral surface of the introduction pipe main body of the exhaust gas introduction pipe and the inner surface of the connection portion. It is configured to be a seal member biased toward the connection portion by the annular expanding portion.
- the sealing means is elastically deformable and formed annularly, and is mounted on the introduction pipe main body so as to contact the outer peripheral surface of the introduction pipe main body of the exhaust gas introduction pipe and the inner surface of the connecting part. Since the seal member is biased toward the connection portion by the annular expansion portion, the seal member is in contact with two surfaces of the outer peripheral surface of the introduction pipe main portion and the inner surface of the connection portion. For this reason, the gap between the scroll portion and the exhaust gas introduction pipe portion can be reliably closed. Further, when the scroll portion is heated and extended to the extension side, the seal member is compressed by the annular expansion portion and elastically deformed, and the outer peripheral surface of the introduction pipe main body portion is in close contact with the inner surface of the connection portion.
- the gap between the scroll portion and the exhaust gas introduction pipe portion can be closed more reliably.
- the mica seal member can be used in a turbocharger through which an exhaust gas having a relatively low temperature (for example, about 900 ° C. or less) flows.
- the exhaust gas introduction pipe portion is provided at a tubular introduction pipe main body portion fitted to the inlet side end portion of the scroll portion, and connected to an exhaust manifold, an engine or the like provided at one end portion of the introduction pipe main body portion.
- the sealing means has one end connected to one of the peripheral end of the inlet side of the scroll and the radially inner peripheral end of the connection of the exhaust gas introduction pipe, and the other end is the exhaust It is configured to resiliently contact either the outer peripheral surface of the introduction pipe main body portion of the introduction pipe portion or the inner peripheral surface of the inlet side end portion of the scroll portion.
- the sealing means has one end connected to one of the peripheral end of the inlet end of the scroll portion and the radially inner peripheral end of the connecting portion of the exhaust gas introduction pipe, and the other end is the exhaust gas introduction pipe Since the other elastic surface of the outer peripheral surface of the introduction tube main body portion and the inner peripheral surface of the inlet side end portion of the scroll portion is in elastic contact, the sealing means introduces the exhaust gas even when the scroll portion is heated and extended by the exhaust gas. It is maintained in contact with the tubular portion or the scroll portion. For this reason, even if the scroll portion is extended, the sealing means can always close the gap between the exhaust gas introduction pipe portion and the scroll portion.
- the other end of the sealing means has a contact surface which contacts either the outer peripheral surface of the introduction pipe main portion of the exhaust gas introduction pipe portion or the inner peripheral surface of the inlet side end of the scroll portion Are configured as provided.
- the sealing means there is a bent portion having a contact surface that contacts either the outer peripheral surface of the introduction pipe main portion of the exhaust gas introduction pipe portion or the inner peripheral surface of the inlet end of the scroll portion. Since it is provided, the other end of the sealing means contacts either the outer peripheral surface of the lead-in tube main body or the inner peripheral surface of the inlet-side end of the scroll through the contact surface. Therefore, the other end of the sealing means can be reliably brought into contact with either the outer peripheral surface of the introduction pipe main body or the inner peripheral surface of the inlet side end of the scroll portion.
- the exhaust gas introduction pipe portion is provided at a tubular introduction pipe main body portion fitted to the inlet side end portion of the scroll portion, and connected to an exhaust manifold, an engine or the like provided at one end portion of the introduction pipe main body portion.
- the sealing means is a female screw portion provided on an inner peripheral surface of the inlet side end portion of the scroll portion constituting the fitting portion; It is provided on an outer peripheral surface of the introduction pipe main body of the exhaust gas introduction pipe forming the fitting part, and has a male screw part that can be screwed to the female screw part.
- the sealing means is a female screw portion provided on the inner peripheral surface of the inlet side end portion of the scroll portion constituting the fitting portion, and the outer peripheral surface of the introduction pipe main portion of the exhaust gas introducing pipe portion constituting the fitting portion Since the scroll portion is heated and extended, the expansion of the scroll portion is absorbed by the gap between the female screw portion and the male screw portion. For this reason, a possibility that damage, such as a crack, may arise in a scroll part can be prevented. Further, since a spiral gap is formed between the female screw and the male screw, the spiral gap exhibits a labyrinth effect even if the exhaust gas intrudes between the female screw and the male screw, thereby moving the exhaust gas. Can be prevented and leakage of exhaust gas can be prevented.
- the exhaust gas introduction pipe portion is provided at a tubular introduction pipe main body portion fitted to the inlet side end portion of the scroll portion, and connected to an exhaust manifold, an engine or the like provided at one end portion of the introduction pipe main body portion.
- the sealing means includes a bellows-like body portion provided on the side facing the inlet side end portion of the scroll portion constituting the fitting portion and surrounding the introduction pipe main portion of the exhaust gas introduction pipe portion.
- the bellows-like body portion is less rigid than the scroll portion; Both ends of the bellows-like body portion are joined to the peripheral edge portion of the inlet side end portion of the scroll portion and the outer peripheral surface of the introduction tube main portion of the exhaust gas introduction tube portion.
- the sealing means includes a bellows-like body provided on the side facing the inlet side end of the scroll forming the fitting part and surrounding the introduction pipe main body of the exhaust gas introduction pipe, and the bellows-like body Is lower in rigidity than the scroll portion, and both ends of the bellows-like body portion are joined to the peripheral portion of the inlet side end portion of the scroll portion and the outer peripheral surface of the introduction pipe main portion of the exhaust gas introduction pipe portion.
- the bellows-like body can absorb the extension of the scroll. For this reason, the possibility that a crack may arise in a turbine housing can be prevented.
- both ends of the sealing means are joined to the peripheral edge portion of the inlet side end of the scroll portion and the outer peripheral surface of the introduction pipe main portion of the exhaust gas introduction pipe portion, the inlet side end of the scroll portion and the exhaust gas introduction pipe Completely close the gap between the Therefore, it is possible to reliably prevent the possibility of the exhaust gas leaking out from between the scroll portion and the exhaust gas introducing pipe portion.
- the scroll portion is formed of a material having a linear expansion coefficient smaller than a linear expansion coefficient of the introduction pipe main portion of the exhaust gas introduction pipe portion fitted to the scroll portion.
- the scroll portion is formed of a material having a linear expansion coefficient smaller than the linear expansion coefficient of the introduction pipe main portion of the exhaust gas introduction pipe portion fitted to the scroll portion. Since the deformation of the pipe portion is larger than the deformation of the scroll portion, the outer peripheral surface of the exhaust gas introduction pipe portion can be in close contact with the inner peripheral surface of the scroll portion. Therefore, the gap between the scroll portion and the exhaust gas introduction pipe can be more reliably eliminated, and the leakage of the exhaust gas can be more reliably prevented.
- the scroll portion and the exhaust gas introduction pipe portion are integrally configured; A connecting portion for connecting to an exhaust manifold, an engine or the like at an inlet side end portion of the introduction pipe portion; And a bellows-shaped annular projecting portion provided on the connection portion side of the introduction pipe portion and protruding radially outward along the circumferential direction of the scroll portion.
- the scroll portion and the exhaust gas introduction pipe portion are integrally formed, and the inlet side end portion of the introduction pipe portion is provided with a connection portion for connecting to an exhaust manifold, engine, etc., and the connection portion side of the introduction pipe portion.
- the bellows-like annular projection projecting radially outward along the circumferential direction of the scroll, so that when the scroll is heated when the scroll is heated, this elongation is absorbed by the bellows-like annular projection Ru. Therefore, thermal stress is not generated in the scroll portion, and damage to the scroll portion due to the thermal stress can be prevented.
- the scroll portion and the exhaust gas introduction pipe portion are integrally engaged, there is no gap between the scroll portion and the exhaust gas introduction pipe portion.
- a sheet metal turbine housing that is free of the risk of cracking in the turbine housing and the risk of exhaust gas leaking out of the gap between the exhaust gas introducing pipe and the turbine housing. be able to.
- the figure (a) is a fragmentary sectional view of the sheet metal turbine housing concerning a 1st embodiment of the present invention
- the figure (b) is an enlarged drawing of the A arrow line portion of the figure (a).
- the figure (a) is a fragmentary sectional view of sheet metal turbine housing at the time of using a piston ring as a closure means concerning a 1st embodiment of the present invention
- the figure (b) shows the seal member made of mica as a closure means. It is a fragmentary sectional view of a sheet metal turbine housing at the time of using.
- FIG. 8 is a partial cross-sectional view of a sheet metal turbine housing provided with closing means in which the exhaust gas introducing pipe portion elastically contacts the inlet side end portion of the scroll portion, according to the second embodiment of the present invention. It is a fragmentary sectional view of the sheet metal turbine housing which provided the closure means provided with the labyrinth structure in the scroll part concerning a 3rd embodiment of the present invention, and the exhaust gas introduction pipe part.
- FIGS. 1 to 7 an embodiment of a sheet metal turbine housing of the present invention will be described with reference to FIGS. 1 to 7 according to the attached drawings.
- a turbocharger is described as an example, in which the energy of exhaust gas is used to rotate a turbine, and the rotation of the turbine feeds air compressed by a compressor to an internal combustion engine.
- the material of the component described in this embodiment, the shape, the relative arrangement, etc. are not the meaning which limits the scope of the present invention to this, but are only a mere illustration example.
- the turbocharger 1 has a turbine wheel 5 connected to one end of a turbine shaft 3 rotatably supported by a bearing (not shown), and a turbine housing 10 surrounding the turbine wheel 5. Equipped with The turbocharger 1 rotates the compressor wheel (not shown) connected to the other end of the turbine shaft 3 by rotationally driving the turbine wheel 5 with the energy of the exhaust gas, and the air compressed by the compressor wheel is Send to the organization.
- the turbine housing 10 includes a scroll portion 11 and an exhaust gas introduction pipe portion 20 connected to an inlet end 15 f of the scroll portion 11.
- the scroll portion 11 is configured to combine two pressed sheet metal parts and weld the combined portion to form a spiral exhaust gas passage 12 a inside.
- the scroll portion 11 has a scroll main body 13 forming a spiral exhaust gas passage 12 a and an exhaust gas guiding portion 15 guiding the exhaust gas to the scroll main body 13.
- the exhaust gas guide portion 15 is formed in a cylindrical shape, and a cylindrical exhaust gas passage 12 b is formed in the exhaust gas guide portion 15.
- An exhaust gas introduction pipe portion 20 is fitted to the inlet side end portion 15 f of the exhaust gas guide portion 15.
- the exhaust gas introduction pipe portion 20 is formed of a metal material (for example, stainless steel), and is provided at a cylindrical introduction pipe main body portion 21 and one end portion of the introduction pipe main body portion 21 for connecting to an exhaust manifold, an engine, etc. And a connecting portion 23.
- the outline shape of the introduction tube main body portion 21 is substantially similar to the outline shape of the inlet side end portion 15 f of the exhaust gas guide portion 15 and is slightly smaller as shown in FIG. 1 (b). For this reason, the introduction pipe main body portion 21 is fitted to the inlet end portion 15 f of the exhaust gas guide portion 15 with a slight gap 25. Therefore, the exhaust gas guiding portion 15 can slide relative to the introduction pipe main body portion 21.
- an exhaust pipe (not shown) for flowing exhaust gas discharged from the internal combustion engine is connected to the connection portion 23.
- a step 21 a is provided at the tip of the introduction pipe main body 21 of the exhaust gas introduction pipe 20 along the contour of the introduction pipe main body 21.
- a seal that contacts the inner circumferential surface 15b of the exhaust gas guiding portion 15 and the outer circumferential surface of the stepped portion 21a in the stepped portion 21a to close the gap 25 formed between the exhaust gas guiding portion 15 and the introduction pipe main portion 21.
- the member 27 is mounted.
- the seal member 27 is formed of a metal material (for example, stainless steel, nickel alloy or the like), and is formed in a V shape, a U shape or a C shape in a cross sectional view.
- the end of the sealing member 27 on the opening side is disposed in the direction opposite to the inlet 15 a of the exhaust gas guiding portion 15.
- the outline of the introduction pipe main body 21 and the outline of the inlet end 15f of the exhaust gas guide 15 be substantially circular, and the seal member be an annular seal ring.
- the seal ring can be made substantially circular and the rigidity of each part of the seal ring can be made uniform, the seal ring can be spread evenly along the gap and the possibility of exhaust gas leakage can be eliminated.
- the deformation (elongation) of the exhaust gas guide portion 15 is relatively large.
- this deformation (elongation) is restrained, a thermal stress is generated in the exhaust gas guiding portion 15, and if the thermal stress is repeated, there is a possibility that damage such as a crack may occur in the exhaust gas guiding portion 15.
- the gap 25 is formed between the exhaust gas guide 15 and the introduction pipe main body 21, and the exhaust gas guide 15 is movable relative to the introduction pipe main body 21.
- the seal member 27 may be a piston ring 30 made of a metal material (for example, stainless steel) as shown in FIG. 2 (a).
- a metal material for example, stainless steel
- an annular groove 21c which extends in the circumferential direction and in which the piston ring 30 can be mounted is provided on the outer peripheral surface 21b of the leading end side of the introduction pipe body 21 of the exhaust gas introduction pipe 20.
- the piston ring 30 can be firmly attached to the annular groove 21c by being resiliently attached when attached to the annular groove 21c.
- the piston ring 30 is configured such that its outer peripheral surface is in contact with the inner peripheral surface 15 b of the exhaust gas guiding portion 15.
- the seal member 27 may be a mica seal member 33, as shown in FIG. 2 (b).
- the seal member 33 has a circular cross section and can be elastically deformed.
- the upper limit of the temperature of the exhaust gas needs to be about 700 to 800.degree. If the temperature of the exhaust gas exceeds this upper limit value, the mica is altered and the function of the sealing member 33 is impaired.
- the exhaust gas guide portion 15 has a double structure. That is, a cover portion 35 surrounding the exhaust gas guide portion 15 via the space portion 34 is disposed radially outside the exhaust gas guide portion 15. Details of the cover 35 will be described later.
- the mica seal member 33 is mounted in contact with the outer peripheral surface 21 b of the introduction pipe main body portion 21 and the flange-like connection portion 23 in a state of being elastically deformed.
- the exhaust gas guide portion 15 is fitted to the outer peripheral surface 21b of the introduction pipe main body portion 21 with a gap 25 (see FIG. 1B).
- an annular expanding portion 15 c is formed which is expanded radially outward and contacts the seal member 33. For this reason, even if the exhaust gas guide portion 15 is heated by the exhaust gas and deformed (expanded), the annular expanded portion 15 c compresses the mica sealing member 33 and absorbs the deformation (elongation) of the exhaust gas guide portion 15. Therefore, the exhaust gas guiding portion 15 can be prevented from being damaged due to the thermal stress.
- the mica seal member 33 is mounted in contact with the outer peripheral surface 21 b of the introduction pipe main body portion 21 and the flange-like connection portion 23. Furthermore, at the time of deformation (elongation) due to heating of the exhaust gas guide portion 15, the seal member 33 is further pushed by the annular expanding portion 15 c to be in close contact with the outer peripheral surface 21 b of the introducing pipe main portion 21 and the flange-like connecting portion 23. For this reason, there is no possibility that the exhaust gas leaks from the gap 25 (see FIG. 1B) between the exhaust gas guiding portion 15 and the introduction pipe main body portion 21.
- the cover portion 35 surrounding the exhaust gas guide portion 15 is formed of a sheet metal (for example, stainless steel) in a tubular shape, and one end portion of the cover portion 35 is radially outside of the inner surface of the connection portion 23 of the exhaust gas introduction pipe portion 20 The other end of the cover portion 35 is joined to the outer surface of the scroll portion 11 by welding or brazing. Therefore, even if the exhaust gas leaks from the mica seal member 33, the cover portion 35 can reliably prevent the exhaust gas from leaking to the outside.
- a sheet metal for example, stainless steel
- the seal portion 40 is formed by, for example, pressing.
- the seal portion 40 is in contact with the outer peripheral surface 21 b of the introduction pipe main portion 21 of the exhaust gas introduction pipe portion 20 with elasticity. For this reason, the possibility that a gap is generated between the seal portion 40 and the outer peripheral surface 21 b of the introduction pipe main portion 21 is suppressed. Further, since the seal portion 40 is bent in an arc shape inward in the radial direction of the exhaust gas guide portion 15, when the exhaust gas flows toward the seal portion 40, the seal portion 40 is expanded by the exhaust gas. Is more firmly pressed against the introduction tube main body 21. Therefore, the possibility of the exhaust gas leaking out between the seal portion 40 and the introduction pipe main body portion 21 can be more reliably prevented.
- the seal portion 40 is in contact with the introduction pipe main body portion 21 with elasticity, when the exhaust gas guide portion 15 is heated by the exhaust gas and deformed (stretched), the seal portion 40 is the outer periphery of the introduction pipe main body portion 21 It slides on the surface 21b. For this reason, there is no possibility that thermal stress is generated in the exhaust gas guide portion 15, and damage to the exhaust gas guide portion 15 due to the thermal stress can be prevented.
- connection portion 23 of the exhaust gas introduction pipe portion 20 is formed by casting, machining, etc.
- the introduction pipe main body portion 21 is formed by pressing a sheet metal, etc. It is connected by welding etc.
- the seal portion 40 is formed at one end of the introduction tube main body portion 21 and is bent in an arc shape radially outward of the introduction tube main body portion 21 and annularly extends in the circumferential direction of the introduction tube main body 21 portion.
- the seal portion 40 contacts the inner circumferential surface 15 b of the exhaust gas guide portion 15 with elasticity.
- a third embodiment of the turbine housing 10 will be described with reference to FIG. About 3rd Embodiment, only a different point from 1st Embodiment is demonstrated, the code
- a female screw portion 42 is provided on the inner circumferential surface 15b of the exhaust gas guiding portion 15, and a male screw portion 44 capable of being screwed on the female screw portion 42 is provided on the outer circumferential surface 21b of the introduction tube main body 21.
- the female screw portion 42 and the male screw portion 44 are combined to constitute a seal portion 46.
- the female screw portion 42 and the male screw portion 44 are configured to have play in the vertical direction in the drawing, and when the female screw portion 42 and the male screw portion 44 are screwed together, a labyrinth structure is formed between the female screw portion 42 and the male screw portion 44.
- the play in the vertical direction on the paper surface may be positively increased by making the angle of each screw thread of the female screw portion 42 and the male screw portion 44 or the width in the vertical direction on the paper surface smaller than general structural screws.
- the exhaust gas guide portion 15 of the scroll portion 11 when the exhaust gas guide portion 15 of the scroll portion 11 is heated and extended, the expansion of the exhaust gas guide portion 15 is absorbed by the play in the vertical direction of the drawing sheet. Therefore, no thermal stress is generated in the exhaust gas guide portion 15, and damage to the exhaust gas guide portion 15 due to the thermal stress can be prevented. Further, since the labyrinth structure is formed between the internal thread 42 and the external thread 44, even if the exhaust gas intrudes between the internal thread 42 and the external thread 44, the movement of the exhaust gas can be blocked by the labyrinth structure. It is possible to prevent leakage.
- the V-shaped, U-shaped or C-shaped sealing member 27 is attached to the introduction pipe main body 21 in the sectional view described above. For this reason, the seal member 27 and the seal portion 46 having the labyrinth structure can be combined to prevent the exhaust gas from leaking more reliably. However, if leakage of the exhaust gas can be reliably prevented only by the seal portion 46 having a labyrinth structure, the seal member 27 is unnecessary.
- the linear expansion coefficient of the exhaust gas guide portion 15 of the scroll portion 11 is formed of a material smaller than the linear expansion coefficient of the introduction pipe main portion 21 of the exhaust gas introduction pipe portion 20 fitted to the exhaust gas guide portion 15 as shown in FIG. It is done.
- the exhaust gas guide portion 15 is formed of, for example, a ferritic stainless steel
- the introduction pipe main body portion 21 is formed of, for example, an austenitic stainless steel.
- the linear expansion coefficient of the exhaust gas guide portion 15 is formed of a material smaller than the linear expansion coefficient of the introduction pipe main body portion 21, when heating the scroll portion 11 and the exhaust gas introduction pipe portion 20 by circulation of exhaust gas,
- the deformation of the introduction pipe main body portion 21 becomes larger than the deformation of the exhaust gas guiding portion 15. Therefore, the outer peripheral surface 21b of the introduction pipe main body 21 can be in close contact with the inner peripheral surface 15b of the exhaust gas guide 15, and the gap between the exhaust gas guide 15 and the introduction pipe main body 21 can be eliminated more reliably. Can. Therefore, the leakage of the exhaust gas can be further reliably prevented.
- the exhaust gas guiding portion 15 is heated by the exhaust gas and deformed (stretched). It slides on the surface 21b. For this reason, there is no possibility that thermal stress is generated in the exhaust gas guide portion 15, and damage to the exhaust gas guide portion 15 due to the thermal stress can be prevented.
- the seal portion 50 annularly has a gap along one end 50 a connected to the outer peripheral surface 15 d of the exhaust gas guide 15 so as to close the inlet 15 a of the exhaust gas guide 15 and the outer peripheral surface 21 b It has the other end 50b connected and the bellows-like body 50c connected between the one end 50a and the other end 50b and having a rigidity lower than that of the exhaust gas guide 15.
- the seal portion 50 forms a bellows-like body 50c which can be elastically deformed by bending a thin sheet metal a plurality of times.
- One end 50 a and the other end 50 b of the seal 50 are fixed to the exhaust gas guide 15 and the introduction pipe main body 21 by welding or brazing.
- the end 50a of the seal 50 is not limited to the case where it is connected to the outer peripheral surface 15d of the exhaust gas guide 15, but as shown by the two-dot chain line, it is connected to the one end 15e of the exhaust gas guide 15.
- the seal portion 50 may be disposed inside the exhaust gas guide portion 15 and the introduction pipe main body portion 21. That is, as shown by the two-dot chain line, the seal portion 50 has one end 50a connected to the inner circumferential surface 15b of the exhaust gas guide 15, and the other end 50b connected to the inner circumferential surface 21d of the introduction tube main body 21. May be
- connection portion 55 of the exhaust gas guiding portion 15 a bellows-shaped annular projecting portion 57 is provided which protrudes outward in the radial direction along the circumferential direction of the exhaust gas guiding portion 15.
- the annular protrusion 57 is formed by, for example, pressing.
- the connection 55 is formed, for example, by casting and machining, and is connected to the radial end of the inlet 15 a of the exhaust gas guide 15 by welding or the like.
- the annular projecting portion 57 is configured to elastically deform and bend so as to be compressed when the exhaust gas guide portion 15 is heated and deformed (stretched). That is, the rigidity of the annular projecting portion 57 is configured to be smaller than the rigidity of the exhaust gas guiding portion 15. Therefore, deformation of the exhaust gas guiding portion 15 can be absorbed by the annular projecting portion 57. Therefore, no thermal stress is generated in the exhaust gas guide portion 15, and damage to the exhaust gas guide portion 15 due to the thermal stress can be prevented. Further, since the exhaust gas guide portion 15 and the connection portion 55 are integrally formed, there is no possibility that the exhaust gas flowing into the exhaust gas guide portion 15 leaks out. For this reason, the situation where the quantity of exhaust gas supplied to turbine wheel 5 reduces can be prevented. Therefore, it is possible to prevent the deterioration of the performance of the turbocharger 1 which supplies the compressed air to the internal combustion engine by rotating the compressor wheel by the rotation of the turbine wheel 5.
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Abstract
Description
板金で形成され渦状の排ガス通路を形成するスクロール部と、
前記スクロール部の筒状に形成された入口側端部に前記スクロール部の前記排ガス通路に排ガスを導入する排ガス導入管部と、
前記スクロール部の前記入口側端部と前記排ガス導入管部とが排ガス漏出を防止しつつ相対的に移動可能なように構成される。
前記スクロール部と前記排ガス導入管部とが別体で構成され、
前記排ガス導入管部は前記スクロール部の筒状に形成された入口側端部に嵌合され、
前記スクロール部の前記入口側端部と前記排ガス導入管部とが嵌合する嵌合部に設けられ、前記嵌合部に形成される環状の隙間を塞ぐシール手段
を備えるように構成される。
前記シール手段は、前記環状の隙間に沿って配置され、前記嵌合部の高圧側に拡開可能に形成されたシール部材であるように構成される。
前記シール部材は、金属材料で形成されて断面視においてV字状又はU字状又はC字状に形成され、開口する側の端部が前記スクロール部の入口と反対側の方向を向いて配設されているように構成される。
前記排ガス導入管部は、前記スクロール部の前記入口側端部に嵌合される筒状の導入管本体部を有し、
前記シール手段は、前記嵌合部を構成する前記排ガス導入部の前記導入管本体部の外周面に環状に設けられた凹溝内に装着されるとともに、前記外周面に対向する前記スクロール部の前記入口側端部の内周面を内側から附勢するように形成されている。
前記スクロール部の前記入口側端部には、前記スクロール部の入口側に進むにしたがって径方向外側へ拡開する環状拡開部が設けられ、
前記排ガス導入管部は、前記スクロール部の入口側端部に嵌合される筒状の導入管本体部と、該導入管本体部の一端部に設けられエキゾーストマニホールドやエンジン等と接続するための接続部とを有し、
前記接続部は径方向外側に突出して環状に形成されたフランジ状に構成され、
前記シール手段は、弾性変形可能であって環状に形成され、前記排ガス導入管部の前記導入管本体部の外周面と前記接続部の内面に接触するように、前記導入管本体部に装着されるとともに、前記環状拡開部によって前記接続部側へ附勢されるシール部材であるように構成される。
前記排ガス導入管部は、前記スクロール部の入口側端部に嵌合される筒状の導入管本体部と、該導入管本体部の一端部に設けられエキゾーストマニホールドやエンジン等と接続するための接続部とを有し、
前記シール手段は、一端部が前記スクロール部の前記入口側端部の周縁端及び前記排ガス導入管部の前記接続部の径方向内側周縁端のいずれか一方に接続され、他端部が前記排ガス導入管部の前記導入管本体部の外周面及び前記スクロール部の入口側端部の内周面のいずれか他方に弾性接触しているように構成される。
前記シール手段の他端部には、前記排ガス導入管部の前記導入管本体部の外周面及び前記スクロール部の入口側端部の内周面のいずれかに接触する接触面を有した屈曲部が設けられているように構成される。
前記排ガス導入管部は、前記スクロール部の入口側端部に嵌合される筒状の導入管本体部と、該導入管本体部の一端部に設けられエキゾーストマニホールドやエンジン等と接続するための接続部とを有し、
前記シール手段は、前記嵌合部を構成する前記スクロール部の前記入口側端部の内周面に設けられた雌ねじ部と、
前記嵌合部を構成する前記排ガス導入管部の前記導入管本体部の外周面に設けられ前記雌ねじ部に螺合可能な雄ねじ部とを有してなるように構成される。
前記排ガス導入管部は、前記スクロール部の入口側端部に嵌合される筒状の導入管本体部と、該導入管本体部の一端部に設けられエキゾーストマニホールドやエンジン等と接続するための接続部とを有し、
前記シール手段は、前記嵌合部を構成する前記スクロール部の前記入口側端部と対面する側に設けられて前記排ガス導入管部の前記導入管本体部を囲む蛇腹状胴部を備え、
前記蛇腹状胴部は、前記スクロール部よりも剛性が低く、
前記蛇腹状胴部の両端は、前記スクロール部の前記入口側端部の周縁部及び前記排ガス導入管部の前記導入管本体部の外周面に接合されているように構成される。
前記スクロール部は、前記スクロール部に嵌合する前記排ガス導入管部の前記導入管本体部の線膨張係数よりも小さい線膨張係数を有する材料で形成されている。
前記スクロール部と前記排ガス導入管部とが一体で構成され、
前記導入管部の入口側端部にエキゾーストマニホールドやエンジン等と接続するための接続部と、
前記導入管部の前記接続部側に設けられ、前記スクロール部の周方向に沿って径方向外側に突出したベローズ状の環状突出部と
を備えるように構成される。
以下、添付図面に従って本発明の板金タービンハウジングの実施形態について、図1~図7を参照しながら説明する。本実施形態では、排ガスのエネルギでタービンを回転させ、タービンの回転によってコンプレッサで圧縮した空気を内燃機関に送り込むターボチャージャを例にして説明する。なお、この実施形態に記載されている構成部品の材質、形状、その相対的配置等は、本発明の範囲をこれに限定する趣旨ではなく、単なる説明例にすぎない。
次に、タービンハウジング10の第2実施形態について、図3(a)及び図3(b)を参照しながら説明する。第2実施形態については、第1実施形態との相違点のみを説明し、第1実施形態と同一態様部分については同一符号を附して説明を省略する。排ガス案内部15の入口15a側の端部には、図3(a)に示すように、排ガス案内部15の径方向内側に円弧状に屈曲して排ガス案内部15の周方向に環状に形成されたシール部40が形成されている。
次に、タービンハウジング10の第3実施形態について、図4を参照しながら説明する。第3実施形態については、第1実施形態との相違点のみを説明し、第1実施形態と同一態様部分については同一符号を附して説明を省略する。図4に示すように、排ガス案内部15の内周面15bには雌ねじ部42が設けられ、導入管本体部21の外周面21bには雌ねじ部42に螺合可能な雄ねじ部44が設けられ、雌ねじ部42と雄ねじ部44とを合わせてシール部46を構成している。雌ねじ部42と雄ねじ部44は紙面上下方向に遊びがあるように構成し、雌ねじ部42及び雄ねじ部44の螺合時に、雌ねじ部42及び雄ねじ部44間にラビリンス構造が形成されている。
次に、タービンハウジング10の第4実施形態について、図5を参照しながら説明する。第4実施形態については、第2実施形態及び第3実施形態との相違点のみを説明し、第2実施形態及び第3実施形態と同一態様部分については同一符号を附して説明を省略する。スクロール部11の排ガス案内部15の線膨張係数は、図5に示すように、排ガス案内部15に嵌合する排ガス導入管部20の導入管本体部21の線膨張係数よりも小さい材料で形成されている。この場合、排ガス案内部15は、例えばフェライト系ステンレス鋼で形成され、導入管本体部21は、例えばオーステナイト系ステンレス鋼で形成される。
次に、タービンハウジング10の第5実施形態について、図6を参照しながら説明する。第5実施形態については、第1実施形態との相違点のみを説明し、第1実施形態と同一態様部分については同一符号を附して説明を省略する。図6に示すように、スクロール部11の排ガス案内部15と排ガス導入管部20の導入管本体部21には、これらを繋ぐとともに伸縮可能なシール部50が設けられている。シール部50は、排ガス案内部15の入口15aを塞ぐようにして排ガス案内部15の外周面15dに接続された一端部50aと、導入管本体部21の外周面21bに沿って環状に隙間なく接続された他端部50bと、一端部50a及び他端部50b間に接続されて排ガス案内部15よりも剛性が低い蛇腹状胴部50cとを有してなる。シール部50は、例えば、薄肉の板金を複数回折り曲げて弾性変形可能な蛇腹状胴部50cを形成している。シール部50の一端部50a及び他端部50bは、溶接又はロウ付けによって排ガス案内部15及び導入管本体部21に固着されている。
次に、タービンハウジング10の第6実施形態について、図7を参照しながら説明する。第6実施形態については、第1実施形態との相違点のみを説明し、第1実施形態と同一態様部分については同一符号を附して説明を省略する。図7に示すように、スクロール部11の排ガス案内部15の入口15aの径方向端部には、エキゾーストマニホールドやエンジン等と接続するための接続部55が設けられている。また、排ガス案内部15の接続部55側には、排ガス案内部15の周方向に沿って径方向外側に突出したベローズ状の環状突出部57が設けられている。環状突出部57は、例えばプレス加工によって形成される。接続部55は、例えば鋳造及び機械加工によって形成されて、溶接等によって排ガス案内部15の入口15aの径方向端部に接続される。
3 タービンシャフト
5 タービンホイール
10 タービンハウジング
11 スクロール部
12a、12b 排ガス通路
13 スクロール本体部
15 排ガス案内部
15a 入口
15b 内周面
15c 環状拡開部
15d 外周面
15e 一端側端部
15f 入口側端部
20 排ガス導入管部
21 導入管本体部
21a 段部
21b 外周面
21c 環状溝
21d 内周面
23、55 接続部
25、45 隙間
27 シール部材
30 ピストンリング
33 雲母製のシール部材
34 空間部
35 カバー部
40、46、50 シール部
42 雌ねじ部
44 雄ねじ部
50a 一端部
50b 他端部
50c 蛇腹状胴部
57 環状突出部
Claims (12)
- 板金で形成され渦状の排ガス通路を形成するスクロール部と、
前記スクロール部の筒状に形成された入口側端部に前記スクロール部の前記排ガス通路に排ガスを導入する排ガス導入管部と、
前記スクロール部の前記入口側端部と前記排ガス導入管部とが排ガス漏出を防止しつつ相対的に移動可能なように構成された
ことを特徴とする板金タービンハウジング。 - 前記スクロール部と前記排ガス導入管部とが別体で構成され、
前記排ガス導入管部は前記スクロール部の筒状に形成された入口側端部に嵌合され、
前記スクロール部の前記入口側端部と前記排ガス導入管部とが嵌合する嵌合部に設けられ、前記嵌合部に形成される環状の隙間を塞ぐシール手段
を備えることを特徴とする請求項1に記載の板金タービンハウジング。 - 前記シール手段は、前記環状の隙間に沿って配置され、前記嵌合部の高圧側に拡開可能に形成されたシール部材である
ことを特徴とする請求項2に記載の板金タービンハウジング。 - 前記シール部材は、金属材料で形成されて断面視においてV字状又はU字状又はC字状に形成され、開口する側の端部が前記スクロール部の入口と反対側の方向を向いて配設されている
ことを特徴とする請求項3に記載の板金タービンハウジング。 - 前記排ガス導入管部は、前記スクロール部の前記入口側端部に嵌合される筒状の導入管本体部を有し、
前記シール手段は、前記嵌合部を構成する前記排ガス導入部の前記導入管本体部の外周面に環状に設けられた凹溝内に装着されるとともに、前記外周面に対向する前記スクロール部の前記入口側端部の内周面を内側から附勢するように形成されている
ことを特徴とする請求項2に記載の板金タービンハウジング。 - 前記スクロール部の前記入口側端部には、前記スクロール部の入口側に進むにしたがって径方向外側へ拡開する環状拡開部が設けられ、
前記排ガス導入管部は、前記スクロール部の入口側端部に嵌合される筒状の導入管本体部と、該導入管本体部の一端部に設けられ径方向外側に突出して環状に形成されたフランジ状の接続部とを有し、
前記シール手段は、弾性変形可能であって環状に形成され、前記排ガス導入管部の前記導入管本体部の外周面と前記フランジ部の内面に接触するように、前記導入管本体部に装着されるとともに、前記環状拡開部によって前記フランジ部側へ附勢されるシール部材である
ことを特徴とする請求項2に記載の板金タービンハウジング。 - 前記排ガス導入管部は、前記スクロール部の入口側端部に嵌合される筒状の導入管本体部と、該導入管本体部の一端部に設けられエキゾーストマニホールドやエンジン等と接続するための接続部とを有し、
前記シール手段は、一端部が前記スクロール部の前記入口側端部の周縁端及び前記排ガス導入管部の前記接続部の径方向内側周縁端のいずれか一方に接続され、他端部が前記排ガス導入管部の前記導入管本体部の外周面及び前記スクロール部の入口側端部の内周面のいずれか他方に弾性接触している
ことを特徴とする請求項2に記載の板金タービンハウジング。 - 前記シール手段の他端部には、前記排ガス導入管部の前記導入管本体部の外周面及び前記スクロール部の入口側端部の内周面のいずれかに接触する接触面を有した屈曲部が設けられている
ことを特徴とする請求項7に記載の板金タービンハウジング。 - 前記排ガス導入管部は、前記スクロール部の入口側端部に嵌合される筒状の導入管本体部と、該導入管本体部の一端部に設けられエキゾーストマニホールドやエンジン等と接続するための接続部とを有し、
前記シール手段は、前記嵌合部を構成する前記スクロール部の前記入口側端部の内周面に設けられた雌ねじ部と、
前記嵌合部を構成する前記排ガス導入管部の前記導入管本体部の外周面に設けられ前記雌ねじ部に螺合可能な雄ねじ部とを有してなる
ことを特徴とする請求項2に記載の板金タービンハウジング。 - 前記排ガス導入管部は、前記スクロール部の入口側端部に嵌合される筒状の導入管本体部と、該導入管本体部の一端部に設けられエキゾーストマニホールドやエンジン等と接続するための接続部とを有し、
前記シール手段は、前記嵌合部を構成する前記スクロール部の前記入口側端部と対面する側に設けられて前記排ガス導入管部の前記導入管本体部を囲む蛇腹状胴部を備え、
前記蛇腹状胴部は、前記スクロール部よりも剛性が低く、
前記蛇腹状胴部の両端は、前記スクロール部の前記入口側端部の周縁部及び前記排ガス導入管部の前記導入管本体部の外周面に接合されている
ことを特徴とする請求項2に記載の板金タービンハウジング。 - 前記スクロール部は、前記スクロール部に嵌合する前記排ガス導入管部の前記導入管本体部の線膨張係数よりも小さい線膨張係数を有する材料で形成されている
ことを特徴とする請求項7又は9に記載の板金タービンハウジング。 - 前記スクロール部と前記排ガス導入管部とが一体で構成され、
前記導入管部の入口側端部にエキゾーストマニホールドやエンジン等と接続するための接続部と、
前記導入管部の前記接続部側に設けられ、前記スクロール部の周方向に沿って径方向外側に突出したベローズ状の環状突出部と
を備えることを特徴とする請求項1に記載の板金タービンハウジング。
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017195441A1 (ja) * | 2016-05-11 | 2017-11-16 | 株式会社Ihi | タービンハウジング、および、過給機 |
JP2018178726A (ja) * | 2017-04-03 | 2018-11-15 | いすゞ自動車株式会社 | タービンハウジングおよびターボチャージャー |
WO2020174533A1 (ja) * | 2019-02-25 | 2020-09-03 | 三菱重工エンジン&ターボチャージャ株式会社 | タービンハウジングおよびターボチャージャ |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6204398B2 (ja) * | 2015-03-23 | 2017-09-27 | カルソニックカンセイ株式会社 | タービンハウジング |
EP3372801B1 (en) * | 2015-11-06 | 2019-10-23 | Calsonic Kansei Corporation | Turbine housing |
JP6499138B2 (ja) * | 2016-10-06 | 2019-04-10 | トヨタ自動車株式会社 | 車両用の過給装置 |
JP6373502B1 (ja) * | 2017-05-30 | 2018-08-15 | Tpr株式会社 | 過給機用コンプレッサハウジングの製造方法および過給機用コンプレッサハウジング |
CN107461253B (zh) * | 2017-09-15 | 2019-08-13 | 河南柴油机重工有限责任公司 | 一种对冲式涡后排气装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004108174A (ja) * | 2002-09-13 | 2004-04-08 | Sankei Kogyo Kk | 排気管可撓継手 |
JP2004183651A (ja) * | 2002-12-03 | 2004-07-02 | Borgwarner Inc | ターボ過給機用ハウジング |
JP2006194227A (ja) * | 2005-01-17 | 2006-07-27 | Toyota Motor Corp | 内燃機関用ターボ過給機 |
JP2009046716A (ja) * | 2007-08-17 | 2009-03-05 | Nippon Yakin Kogyo Co Ltd | 舶用ディーゼルエンジン排気系に適した耐熱性および高耐食性を有する構成材料を用いたガス排気設備 |
JP2013068153A (ja) * | 2011-09-22 | 2013-04-18 | Mitsubishi Heavy Ind Ltd | ターボチャージャのシールリング組付け方法及びターボチャージャ |
JP2013170504A (ja) * | 2012-02-21 | 2013-09-02 | Toyota Motor Corp | 過給機 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2801043A (en) * | 1954-08-24 | 1957-07-30 | Thompson Prod Inc | Turbine supercharger |
US5957504A (en) * | 1997-04-10 | 1999-09-28 | Senior Engineering Investments Ag | Exhaust manifold attachment apparatus |
DE10336978B3 (de) | 2003-08-12 | 2005-01-13 | Mtu Friedrichshafen Gmbh | Trägergehäuse für einen oder mehrere Abgasturbolader einer Brennkraftmaschine |
JP4835330B2 (ja) * | 2006-08-31 | 2011-12-14 | トヨタ自動車株式会社 | タービンハウジング |
JP4875009B2 (ja) * | 2008-02-26 | 2012-02-15 | トヨタ自動車株式会社 | タービンハウジング |
JP5357738B2 (ja) * | 2009-12-21 | 2013-12-04 | 三菱重工業株式会社 | タービンハウジング |
JP5433560B2 (ja) * | 2010-12-27 | 2014-03-05 | 三菱重工業株式会社 | タービンスクロール部構造 |
JP5511725B2 (ja) | 2011-03-31 | 2014-06-04 | 三菱重工業株式会社 | 板金タービンハウジング |
WO2013065154A1 (ja) * | 2011-11-02 | 2013-05-10 | トヨタ自動車 株式会社 | タービンハウジング及び排気タービン過給機 |
JP5910114B2 (ja) | 2012-01-27 | 2016-04-27 | トヨタ自動車株式会社 | タービンハウジング及び排気タービン過給機 |
JP5518232B2 (ja) | 2013-04-18 | 2014-06-11 | 三菱重工業株式会社 | 板金タービンハウジング |
-
2014
- 2014-02-28 CN CN201480074224.5A patent/CN105940203B/zh active Active
- 2014-02-28 WO PCT/JP2014/055117 patent/WO2015129037A1/ja active Application Filing
- 2014-02-28 EP EP14884174.5A patent/EP3112633B1/en active Active
- 2014-02-28 JP JP2016504977A patent/JP6240307B2/ja active Active
- 2014-02-28 US US15/112,464 patent/US10400617B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004108174A (ja) * | 2002-09-13 | 2004-04-08 | Sankei Kogyo Kk | 排気管可撓継手 |
JP2004183651A (ja) * | 2002-12-03 | 2004-07-02 | Borgwarner Inc | ターボ過給機用ハウジング |
JP2006194227A (ja) * | 2005-01-17 | 2006-07-27 | Toyota Motor Corp | 内燃機関用ターボ過給機 |
JP2009046716A (ja) * | 2007-08-17 | 2009-03-05 | Nippon Yakin Kogyo Co Ltd | 舶用ディーゼルエンジン排気系に適した耐熱性および高耐食性を有する構成材料を用いたガス排気設備 |
JP2013068153A (ja) * | 2011-09-22 | 2013-04-18 | Mitsubishi Heavy Ind Ltd | ターボチャージャのシールリング組付け方法及びターボチャージャ |
JP2013170504A (ja) * | 2012-02-21 | 2013-09-02 | Toyota Motor Corp | 過給機 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017195441A1 (ja) * | 2016-05-11 | 2017-11-16 | 株式会社Ihi | タービンハウジング、および、過給機 |
JPWO2017195441A1 (ja) * | 2016-05-11 | 2019-01-31 | 株式会社Ihi | タービンハウジング、および、過給機 |
JP2018178726A (ja) * | 2017-04-03 | 2018-11-15 | いすゞ自動車株式会社 | タービンハウジングおよびターボチャージャー |
WO2020174533A1 (ja) * | 2019-02-25 | 2020-09-03 | 三菱重工エンジン&ターボチャージャ株式会社 | タービンハウジングおよびターボチャージャ |
JPWO2020174533A1 (ja) * | 2019-02-25 | 2021-12-09 | 三菱重工エンジン&ターボチャージャ株式会社 | タービンハウジングおよびターボチャージャ |
JP7084543B2 (ja) | 2019-02-25 | 2022-06-14 | 三菱重工エンジン&ターボチャージャ株式会社 | タービンハウジングおよびターボチャージャ |
US11428108B2 (en) | 2019-02-25 | 2022-08-30 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Turbine housing and turbocharger |
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