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US20150050126A1 - Exhaust-gas turbocharger - Google Patents

Exhaust-gas turbocharger Download PDF

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Publication number
US20150050126A1
US20150050126A1 US14/380,480 US201314380480A US2015050126A1 US 20150050126 A1 US20150050126 A1 US 20150050126A1 US 201314380480 A US201314380480 A US 201314380480A US 2015050126 A1 US2015050126 A1 US 2015050126A1
Authority
US
United States
Prior art keywords
exhaust
connection piece
gas turbocharger
shaft
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.)
Abandoned
Application number
US14/380,480
Other languages
English (en)
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
Assigned to BORGWARNER INC. reassignment BORGWARNER INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LOEWENBERG, Michael
Publication of US20150050126A1 publication Critical patent/US20150050126A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • 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
    • 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 A1.
  • 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.
  • FIG. 1 shows a schematically greatly simplified basic illustration of an exhaust-gas turbocharger according to the invention
  • FIG. 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.
  • FIG. 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 FIG. 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.
  • FIG. 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 .
  • 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.
  • FIGS. 1 and 2 In addition to the above written disclosure of the invention, reference is hereby explicitly made to FIGS. 1 and 2 to supplement the disclosure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
US14/380,480 2012-03-01 2013-02-21 Exhaust-gas turbocharger Abandoned US20150050126A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012004114.4 2012-03-01
DE102012004114 2012-03-01
PCT/US2013/027056 WO2013130329A1 (fr) 2012-03-01 2013-02-21 Turbocompresseur de gaz d'écoulement

Publications (1)

Publication Number Publication Date
US20150050126A1 true US20150050126A1 (en) 2015-02-19

Family

ID=49083168

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/380,480 Abandoned US20150050126A1 (en) 2012-03-01 2013-02-21 Exhaust-gas turbocharger

Country Status (7)

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

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
US2662725A (en) * 1950-02-23 1953-12-15 Kennametal Inc Turbine wheel assembly
US4557704A (en) * 1983-11-08 1985-12-10 Ngk Spark Plug Co., Ltd. Junction structure of turbine shaft
US4639194A (en) * 1984-05-02 1987-01-27 General Motors Corporation Hybrid gas turbine rotor
US5228836A (en) * 1990-12-21 1993-07-20 Sulzer Brothers Limited Runner for a pump
US20100040473A1 (en) * 2006-10-13 2010-02-18 Borgwarner Inc. Turbocharger
US20100154214A1 (en) * 2008-12-18 2010-06-24 Nelson Stud Welding, Inc. Turbine wheel and shaft joining processes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60118678A (ja) * 1983-11-30 1985-06-26 株式会社日立製作所 セラミツクス部材の締結方法
JPH03119502U (fr) * 1990-03-22 1991-12-10
JP3453302B2 (ja) * 1998-05-07 2003-10-06 三菱重工業株式会社 ＴｉＡｌ合金部材と構造用鋼材との接合方法及び接合部品
US7052241B2 (en) * 2003-08-12 2006-05-30 Borgwarner Inc. Metal injection molded turbine rotor and metal shaft connection attachment thereto
DE102005015947B3 (de) * 2005-04-07 2006-07-06 Daimlerchrysler Ag Reibschweißverfahren und Bauteile aus Stahl und Metallaluminid
JP4826417B2 (ja) * 2006-09-29 2011-11-30 株式会社ジェイテクト 過給器
US20100047072A1 (en) * 2006-11-29 2010-02-25 Borgwarner Inc. Turbocharger
JP2010275878A (ja) * 2009-05-26 2010-12-09 Ihi Corp インペラ、過給機、及びインペラの製造方法
DE102009034420A1 (de) * 2009-07-24 2011-02-03 Audi Ag Vorrichtung zum Fügen eines Turbinenrades mit einer Welle

Patent Citations (6)

* 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
US4557704A (en) * 1983-11-08 1985-12-10 Ngk Spark Plug Co., Ltd. Junction structure of turbine shaft
US4639194A (en) * 1984-05-02 1987-01-27 General Motors Corporation Hybrid gas turbine rotor
US5228836A (en) * 1990-12-21 1993-07-20 Sulzer Brothers Limited Runner for a pump
US20100040473A1 (en) * 2006-10-13 2010-02-18 Borgwarner Inc. Turbocharger
US20100154214A1 (en) * 2008-12-18 2010-06-24 Nelson Stud Welding, Inc. Turbine wheel and shaft joining processes

Also Published As

Publication number Publication date
IN2014DN06184A (fr) 2015-10-23
DE112013000842T5 (de) 2014-10-16
WO2013130329A1 (fr) 2013-09-06
CN104126063A (zh) 2014-10-29
JP2015508865A (ja) 2015-03-23
KR20140126756A (ko) 2014-10-31

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BORGWARNER INC., MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LOEWENBERG, MICHAEL;REEL/FRAME:033607/0846

Effective date: 20130226

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION