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WO2013130329A1 - Exhaust-gas turbocharger - Google Patents

Exhaust-gas turbocharger Download PDF

Info

Publication number
WO2013130329A1
WO2013130329A1 PCT/US2013/027056 US2013027056W WO2013130329A1 WO 2013130329 A1 WO2013130329 A1 WO 2013130329A1 US 2013027056 W US2013027056 W US 2013027056W WO 2013130329 A1 WO2013130329 A1 WO 2013130329A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust
gas turbocharger
shaft
connection piece
turbine wheel
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2013/027056
Other languages
French (fr)
Inventor
Michael LOEWENBERG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BorgWarner Inc
Original Assignee
BorgWarner Inc
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 BorgWarner Inc filed Critical BorgWarner Inc
Priority to KR1020147026265A priority Critical patent/KR20140126756A/en
Priority to JP2014559925A priority patent/JP2015508865A/en
Priority to CN201380009899.7A priority patent/CN104126063A/en
Priority to DE112013000842.4T priority patent/DE112013000842T5/en
Priority to US14/380,480 priority patent/US20150050126A1/en
Publication of WO2013130329A1 publication Critical patent/WO2013130329A1/en
Priority to IN6184DEN2014 priority patent/IN2014DN06184A/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/053—Shafts
    • F04D29/054—Arrangements for joining or assembling shafts
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/025—Fixing blade carrying members on shafts
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • 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
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F05D2230/238—Soldering
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/174—Titanium alloys, e.g. TiAl

Definitions

  • the invention relates to an exhaust-gas turbocharger according to the preamble of claim 1.
  • An exhaust-gas turbocharger of this type is known from DE 10 2009 034 420 Al .
  • To connect the turbine wheel of this known exhaust-gas turbocharger to a steel shaft it is provided to make a bore both in the wheel rear side of the turbine wheel and in the end face of the shaft, into which bore there is inserted a metallic centering pin, the coefficient of thermal expansion of which corresponds substantially to that of the ceramic turbine wheel.
  • a soldered connection is provided to connect the shaft and the turbine wheel.
  • connection piece inserted into the bores in the turbine wheel and the shaft is hollow in form. Accordingly, an air space which acts as a heat throttle is formed in the connection piece.
  • the connection piece can in this respect be in the form of a bored-out sleeve or of a clamping sleeve.
  • connection piece thus performs the task of a heat throttle as well as the task of a centering part between the turbine wheel and the shaft.
  • connection piece can be in the form of a circular-cylindrical part or of a part with an angular cross section. In the latter case, in addition to the integral connection, there is also a form fit between the turbine wheel and the shaft.
  • soldered connections In principle, soldered connections, adhesively bonded connections or else welded connections are conceivable as integral connections.
  • Claims 9 and 10 define a rotor according to the invention of an exhaust-gas turbocharger as an object which can be marketed independently.
  • Figure 1 shows a schematically greatly simplified basic illustration of an exhaust- gas turbocharger according to the invention
  • Figure 2 shows a partial section through the shaft and the turbine wheel of a rotor of the exhaust-gas turbocharger according to the invention in the region of the point of attachment between the turbine wheel and the shaft.
  • Figure 1 shows, in a schematically greatly simplified illustration, an exhaust-gas turbocharger 1 having a shaft 2.
  • a turbine wheel of a turbine 4 is arranged at one end of the shaft 2.
  • the other end of the shaft 2 is provided with a compressor wheel 10 of a compressor 11.
  • a bearing housing 12 for mounting the shaft 2 is provided between the compressor 11 and the turbine 4.
  • the exhaust-gas turbocharger according to the invention of course also has all the further parts of such chargers, but these are not shown or explained since they are not required for explaining the principles of the present invention.
  • the shaft 2 has a first centric bore 4 on an end face 3 facing toward the turbine wheel 5.
  • the turbine wheel 5 has a second centric bore 7 in the wheel rear side 6 thereof. These bores 4 and 7 are arranged in alignment with the longitudinal axis L of the exhaust-gas turbocharger 1.
  • the wheel rear side 6 of the turbine wheel 5 is in the form of a shoulder protruding axially in the direction toward the shaft 2. It is also possible, however, for the wheel rear side 6 to be formed with a smooth surface.
  • connection piece 8 which, in the assembled state shown in Figure 2, engages into the first and the second bores 4 and 7.
  • connection device 9 which, as mentioned in the introduction, can be in the form of a soldered connection, for example.
  • connection piece 8 is in the form of a hollow sleeve having an inner space 13 which accommodates an air cushion as a heat throttle.
  • the connection piece 8 thus serves both as a centering piece and as a heat throttle, which reduces the introduction of heat from the turbine wheel 5 into the shaft 2.
  • it is of course possible to adapt the length and diameter of the connection piece 8 to the respective application, in order to achieve the highest possible heat throttle action.
  • it is in principle likewise conceivable to extend the bores 4 and 7 beyond the length of the connection piece 8, in order to lengthen the air space 13 beyond the connection piece 8.
  • connection piece 8 can be in the form of a bored-out sleeve or of a hollow clamping sleeve. It may have a circular-cylindrical cross section or else an angular cross section in order to achieve a form- fitting connection in addition to the integral connection.
  • the turbine wheel is preferably formed from titanium aluminide (TiAl).
  • the shaft 2 is preferably in the form of a steel shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Description

EXHAUST-GAS TURBOCHARGER DESCRIPTION The invention relates to an exhaust-gas turbocharger according to the preamble of claim 1.
An exhaust-gas turbocharger of this type is known from DE 10 2009 034 420 Al . To connect the turbine wheel of this known exhaust-gas turbocharger to a steel shaft, it is provided to make a bore both in the wheel rear side of the turbine wheel and in the end face of the shaft, into which bore there is inserted a metallic centering pin, the coefficient of thermal expansion of which corresponds substantially to that of the ceramic turbine wheel. Furthermore, a soldered connection is provided to connect the shaft and the turbine wheel.
The disadvantage of this arrangement is that the centering pin forms a heat bridge, and therefore a high quantity of heat is introduced from the turbine wheel into the shaft.
It is an object of the present invention, therefore, to provide an exhaust-gas turbocharger of the type indicated in the preamble of claim 1 which makes it possible to realize a heat throttle between the turbine wheel and the shaft.
This object is achieved by the features of claim 1.
According to the invention, it is provided that the connection piece inserted into the bores in the turbine wheel and the shaft is hollow in form. Accordingly, an air space which acts as a heat throttle is formed in the connection piece. The connection piece can in this respect be in the form of a bored-out sleeve or of a clamping sleeve.
The connection piece thus performs the task of a heat throttle as well as the task of a centering part between the turbine wheel and the shaft.
The dependent claims relate to advantageous developments of the invention.
In particular, the connection piece can be in the form of a circular-cylindrical part or of a part with an angular cross section. In the latter case, in addition to the integral connection, there is also a form fit between the turbine wheel and the shaft.
In principle, soldered connections, adhesively bonded connections or else welded connections are conceivable as integral connections.
Claims 9 and 10 define a rotor according to the invention of an exhaust-gas turbocharger as an object which can be marketed independently.
Further details, advantages and features of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawing, in which: Figure 1 shows a schematically greatly simplified basic illustration of an exhaust- gas turbocharger according to the invention, and
Figure 2 shows a partial section through the shaft and the turbine wheel of a rotor of the exhaust-gas turbocharger according to the invention in the region of the point of attachment between the turbine wheel and the shaft.
Figure 1 shows, in a schematically greatly simplified illustration, an exhaust-gas turbocharger 1 having a shaft 2. A turbine wheel of a turbine 4 is arranged at one end of the shaft 2. The other end of the shaft 2 is provided with a compressor wheel 10 of a compressor 11. A bearing housing 12 for mounting the shaft 2 is provided between the compressor 11 and the turbine 4. The exhaust-gas turbocharger according to the invention of course also has all the further parts of such chargers, but these are not shown or explained since they are not required for explaining the principles of the present invention.
As Figure 2, in particular, shows, the shaft 2 has a first centric bore 4 on an end face 3 facing toward the turbine wheel 5.
The turbine wheel 5 has a second centric bore 7 in the wheel rear side 6 thereof. These bores 4 and 7 are arranged in alignment with the longitudinal axis L of the exhaust-gas turbocharger 1. In the embodiment shown, the wheel rear side 6 of the turbine wheel 5 is in the form of a shoulder protruding axially in the direction toward the shaft 2. It is also possible, however, for the wheel rear side 6 to be formed with a smooth surface.
As Figure 2 shows, provision is made of a connection piece 8, which, in the assembled state shown in Figure 2, engages into the first and the second bores 4 and 7. To connect the turbine wheel 5 and the shaft 2, provision is furthermore made of an integral connection device 9, which, as mentioned in the introduction, can be in the form of a soldered connection, for example.
Figure 2 shows that the connection piece 8 is in the form of a hollow sleeve having an inner space 13 which accommodates an air cushion as a heat throttle. The connection piece 8 thus serves both as a centering piece and as a heat throttle, which reduces the introduction of heat from the turbine wheel 5 into the shaft 2. In this respect, it is of course possible to adapt the length and diameter of the connection piece 8 to the respective application, in order to achieve the highest possible heat throttle action. Furthermore, it is in principle likewise conceivable to extend the bores 4 and 7 beyond the length of the connection piece 8, in order to lengthen the air space 13 beyond the connection piece 8.
Accordingly, the connection piece 8 can be in the form of a bored-out sleeve or of a hollow clamping sleeve. It may have a circular-cylindrical cross section or else an angular cross section in order to achieve a form- fitting connection in addition to the integral connection.
The turbine wheel is preferably formed from titanium aluminide (TiAl). The shaft 2 is preferably in the form of a steel shaft.
In addition to the above written disclosure of the invention, reference is hereby explicitly made to Figures 1 and 2 to supplement the disclosure.
List of reference signs
1 Exhaust-gas turbocharger
2 Shaft
3 End face
4 First centric bore
5 Turbine wheel
6 Wheel rear side
7 Second centric bore
8 Connection piece
9 Integral connection device
10 Compressor wheel
11 Compressor
12 Bearing housing
L Charger longitudinal axis

Claims

1. An exhaust-gas turbocharger ( 1 )
having a shaft (2), which has a first centric bore (4) on an end face (3); - having a turbine wheel (5), which has a second centric bore (7) in the wheel rear side (6) thereof;
having a connection piece (8), which engages into the first and second bores (4, 7); and
having an integral connection device (9) for connecting the shaft (2) to the turbine wheel (5),
wherein
the connection piece (8) is hollow in form.
2. The exhaust-gas turbocharger as claimed in claim 1, wherein the connection piece (8) is in the form of a bored-out sleeve.
3. The exhaust-gas turbocharger as claimed in claim 1, wherein the connection piece (8) is in the form of a hollow clamping sleeve.
4. The exhaust-gas turbocharger as claimed in one of claims 1 to 3, wherein the connection piece (8) has a circular-cylindrical cross section.
5. The exhaust-gas turbocharger as claimed in one of claims 1 to 3, wherein the connection piece (8) has an angular cross section.
6. The exhaust-gas turbocharger as claimed in one of claims 1 to 5, wherein the turbine wheel (5) is formed from TiAl material.
7. The exhaust-gas turbocharger as claimed in one of claims 1 to 6, wherein the shaft (2) is formed from steel.
8. The exhaust-gas turbocharger as claimed in one of claims 1 to 7, wherein the integral connection device (9) is a soldered, adhesively bonded or welded connection.
9. A rotor of an exhaust-gas turbocharger (1),
having a shaft (2), which has a first centric bore (4) on an end face (3); having a turbine wheel (5), which has a second centric bore (7) in the wheel rear side (6) thereof;
having a connection piece (8), which engages into the first and second bores (4, 7); and
having an integral connection device (9) for connecting the shaft (2) to the turbine wheel (5),
wherein
the connection piece (8) is hollow in form.
10. The rotor as claimed in claim 9, characterized by one of claims 2 to 8.
PCT/US2013/027056 2012-03-01 2013-02-21 Exhaust-gas turbocharger Ceased WO2013130329A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020147026265A KR20140126756A (en) 2012-03-01 2013-02-21 Exhaust-gas turbocharger
JP2014559925A JP2015508865A (en) 2012-03-01 2013-02-21 Exhaust gas turbocharger
CN201380009899.7A CN104126063A (en) 2012-03-01 2013-02-21 Exhaust-gas turbocharger
DE112013000842.4T DE112013000842T5 (en) 2012-03-01 2013-02-21 turbocharger
US14/380,480 US20150050126A1 (en) 2012-03-01 2013-02-21 Exhaust-gas turbocharger
IN6184DEN2014 IN2014DN06184A (en) 2012-03-01 2014-07-23

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012004114.4 2012-03-01
DE102012004114 2012-03-01

Publications (1)

Publication Number Publication Date
WO2013130329A1 true WO2013130329A1 (en) 2013-09-06

Family

ID=49083168

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/027056 Ceased WO2013130329A1 (en) 2012-03-01 2013-02-21 Exhaust-gas turbocharger

Country Status (7)

Country Link
US (1) US20150050126A1 (en)
JP (1) JP2015508865A (en)
KR (1) KR20140126756A (en)
CN (1) CN104126063A (en)
DE (1) DE112013000842T5 (en)
IN (1) IN2014DN06184A (en)
WO (1) WO2013130329A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10487741B2 (en) * 2018-02-27 2019-11-26 GM Global Technology Operations LLC Turbo vane and compressor for turbocharger

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080080966A1 (en) * 2006-09-29 2008-04-03 Jtket Corporation Turbocharger
US20090050675A1 (en) * 2005-04-07 2009-02-26 Daimlerchrysler Ag Friction Welding Method and Components Produced From Steel and Metal Aluminide Using an Intermediary From an Ni Alloy
US20100047072A1 (en) * 2006-11-29 2010-02-25 Borgwarner Inc. Turbocharger
US20100154214A1 (en) * 2008-12-18 2010-06-24 Nelson Stud Welding, Inc. Turbine wheel and shaft joining processes
JP2010275878A (en) * 2009-05-26 2010-12-09 Ihi Corp Impeller, supercharger, and method for manufacturing the impeller
DE102009034420A1 (en) * 2009-07-24 2011-02-03 Audi Ag Device for joining a turbine wheel with a shaft

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662725A (en) * 1950-02-23 1953-12-15 Kennametal Inc Turbine wheel assembly
JPS60101201A (en) * 1983-11-08 1985-06-05 Ngk Spark Plug Co Ltd Joining structure in turbine shaft
JPS60118678A (en) * 1983-11-30 1985-06-26 株式会社日立製作所 How to fasten ceramic parts
US4639194A (en) * 1984-05-02 1987-01-27 General Motors Corporation Hybrid gas turbine rotor
JPH03119502U (en) * 1990-03-22 1991-12-10
JPH04296698A (en) * 1990-12-21 1992-10-21 Gebr Sulzer Ag Runner imparting pump action for high-temperature liquid of nuclear reactor
JP3453302B2 (en) * 1998-05-07 2003-10-06 三菱重工業株式会社 Method of joining TiAl alloy member to structural steel and joining parts
US7052241B2 (en) * 2003-08-12 2006-05-30 Borgwarner Inc. Metal injection molded turbine rotor and metal shaft connection attachment thereto
KR20090069172A (en) * 2006-10-13 2009-06-29 보르그워너 인코퍼레이티드 Turbocharger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090050675A1 (en) * 2005-04-07 2009-02-26 Daimlerchrysler Ag Friction Welding Method and Components Produced From Steel and Metal Aluminide Using an Intermediary From an Ni Alloy
US20080080966A1 (en) * 2006-09-29 2008-04-03 Jtket Corporation Turbocharger
US20100047072A1 (en) * 2006-11-29 2010-02-25 Borgwarner Inc. Turbocharger
US20100154214A1 (en) * 2008-12-18 2010-06-24 Nelson Stud Welding, Inc. Turbine wheel and shaft joining processes
JP2010275878A (en) * 2009-05-26 2010-12-09 Ihi Corp Impeller, supercharger, and method for manufacturing the impeller
DE102009034420A1 (en) * 2009-07-24 2011-02-03 Audi Ag Device for joining a turbine wheel with a shaft

Also Published As

Publication number Publication date
DE112013000842T5 (en) 2014-10-16
JP2015508865A (en) 2015-03-23
US20150050126A1 (en) 2015-02-19
KR20140126756A (en) 2014-10-31
CN104126063A (en) 2014-10-29
IN2014DN06184A (en) 2015-10-23

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