EP1598521A1 - Turbocompresseur pour gaz d'échappement - Google Patents

Turbocompresseur pour gaz d'échappement Download PDF

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Publication number
EP1598521A1
EP1598521A1 EP05009768A EP05009768A EP1598521A1 EP 1598521 A1 EP1598521 A1 EP 1598521A1 EP 05009768 A EP05009768 A EP 05009768A EP 05009768 A EP05009768 A EP 05009768A EP 1598521 A1 EP1598521 A1 EP 1598521A1
Authority
EP
European Patent Office
Prior art keywords
shaft
exhaust gas
gas turbocharger
housing
turbine
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.)
Withdrawn
Application number
EP05009768A
Other languages
German (de)
English (en)
Inventor
John K. Dr. Fremerey
Hermann Stelzer
Jens-Wolf Jaisle
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.)
Forschungszentrum Juelich GmbH
BorgWarner Inc
Original Assignee
Forschungszentrum Juelich GmbH
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 Forschungszentrum Juelich GmbH, BorgWarner Inc filed Critical Forschungszentrum Juelich GmbH
Priority to EP07000729A priority Critical patent/EP1795711A2/fr
Publication of EP1598521A1 publication Critical patent/EP1598521A1/fr
Withdrawn legal-status Critical Current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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/14—Casings modified therefor
    • F01D25/145—Thermally insulated casings
    • 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
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/502—Thermal properties
    • F05D2300/5024—Heat conductivity

Definitions

  • the invention relates to an exhaust gas turbocharger with a Shaft, which is a turbine wheel arranged in a turbine housing and a compressor wheel connects, and with a interposed storage with a bearing housing and bearings disposed therein for the shaft.
  • Exhaust gas turbochargers are used to improve the efficiency and thus the increase in performance of combustion engines. You have a wave on one end with a Turbine and the other end provided with a compressor wheel is. The turbine wheel is powered by exhaust gas from the combustion engine acted essentially the thermal energy of the exhaust gas through the turbine wheel in a rotational movement is implemented. that's going to be over the wave Compressor wheel driven, the fresh air sucks and with Overpressure to flow into the intake ports of the engine leaves and thus improves the degree of filling.
  • the wave reaches high speeds of up to 300,000 rpm.
  • the turbocharger on the turbine side through the Exhaust gas flow exposed to high temperatures in gasoline engines can reach more than 1,000 ° C while the Temperature on the compressor side generally not reached more than 150 ° C. It is understood that thereby an enormous thermal load of the bearings arises, which are adjacent to the turbine side.
  • the invention is therefore based on the object, an exhaust gas turbocharger of the type mentioned above in such a way that with cost-effective measures, a warming of the bearings to temperatures that affect their operational safety, is avoided.
  • the shaft between turbine wheel and bearing at least has a thermal insulation whose thermal permeability less than that adjacent to the thermal insulation Areas of the shaft and the heat transfer hampered by the wave. This is based on the knowledge that an essential part of the turbine side resulting heat transferred via the shaft in the storage becomes. Due to the heat insulation, the heat transfer reduced to storage, with the measure the reduction by appropriate training of thermal insulation and by dimensioning them to the respective ones Requirements can be adjusted.
  • the thermal insulation one over the cross section of the wave going Insulating layer having a lower thermal conductivity otherwise than the material of the shaft.
  • the insulating layer must be such that on the one hand resistant to the temperatures encountered on the other hand, the wave is not or not is greatly weakened.
  • they are particularly suitable Metals whose thermal conductivity is lower, especially considerably less than the material, from which the wave exists otherwise, namely in the Usually steel.
  • metals come for the insulating layer especially nickel-chromium alloys in question as they are under but the brands INCONEL® or INCOLOY® are known also stainless steel alloys.
  • the heat insulation can also have an area where the cross-sectional area of the shaft is reduced and on this way the heat transfer is hindered.
  • This can For example, done by that in the shaft Cavity is formed, wherein the cavity also can extend over the entire length of the shaft, so a hollow shaft is present.
  • the object underlying the invention may alternatively to or in combination with the aforementioned measures be solved in that the shaft between the turbine wheel and storage and / or the bearing housing additional Have or have heat transfer surfaces. These additional heat transfer surfaces improve the heat dissipation to the environment.
  • the heat transfer surfaces can for example, as at least one sitting on the shaft Cooling disk be formed.
  • the object underlying the invention may alternatively to or in combination with the above measures also be solved in that the flanges, on the Bearing housing and turbine housing coupled together are, have a thermal insulation whose thermal permeability less than that of the flanges themselves This way, the heat conduction through the housing caused heat transfer can be reduced.
  • the insulating layer can - as in the thermal insulation the wave - made of a metal, for example a nickel-chromium alloy or a stainless steel alloy, consist.
  • a metal for example a nickel-chromium alloy or a stainless steel alloy, consist.
  • others, too, can be bad thermally conductive materials, in particular mineral or ceramic materials, be used.
  • an insulating layer can have the thermal insulation insulating webs over which the Flanges of the flange are adjacent to each other.
  • the idea is based on the surfaces over which the two flanges together, as small as possible hold. It is possible, the Isolierstege form so that they include a cavity, the can be filled with an insulating material.
  • the turbine housing and / or the bearing housing on the outside at least partially with a coating is or are the heat dissipation to the environment improved. Also this measure can with the The measures described above are combined to To improve protection against thermal stress of the bearings.
  • the coating can have better thermal conductivity have as the material of the turbine housing or of the bearing housing. So can the surface by flame spraying be provided with aluminum. Alternatively or In combination, the coating should also be a higher one Heat emissivities have as the material of the turbine housing or bearing housing.
  • the turbine housing on his Inner side at least partially with a coating too provided, which reduces the heat absorption of the turbine housing.
  • the coating should have a lower heat absorption capacity have as the material of the turbine housing. In this way, the heat absorption of the housing reduced.
  • the turbocharger 1 shown in Figure 1 has a typical Construction. He has a wave 2, on the right side a turbine wheel 3 and on the left a compressor 4 to sit.
  • the shaft 2 is not shown here bearing stored in a tubular bearing housing 5. Camps can be designed as a magnetic bearing, as this For example, in DE 102 16 447 C1 discloses.
  • the turbine wheel 3 is surrounded by a turbine housing 6, the one not shown here radial inlet port Has.
  • the compressor 4 is of a compressor housing 9 surrounded, with a central inlet opening 10 is provided. About this inlet opening 10 is sucked 4 air due to the rotational movement of the compressor wheel and deflected into an annular space 11. This condensed Air then leaves the annulus 11 via a here Aulschreibö réelle not shown in the direction of Inlet side of the internal combustion engine.
  • the turbine housing 6 and the compressor housing 9 are with the bearing housing 5 via two flanges 12, 13th or 14, 15 connected.
  • the flanges 12, 13 and 14, 15 are over here not shown screws in usual Way braced with each other.
  • Figure 2 shows a wave detail adjacent to the turbine housing 6 or to the turbine wheel 3.
  • a Intermediate piece 16 welded, made of a nickel-chromium alloy exists and therefore much worse directs than the otherwise made of a steel shaft 2.
  • the intermediate piece 16 acts as an insulating layer and obstructed the heat transfer in the direction of the turbine wheel 3 and thus the bearing in the bearing housing. 5
  • FIG. 3 shows another embodiment of a wave detail, which is arranged in the same place.
  • the wave 2 is here provided with a cavity 17, which for the Heat conduction available cross-sectional area the shaft 2 reduced to an outer ring area and This hinders the heat transfer.
  • Figure 4 shows the upper part of the bearing housing 5 and the adjacent turbine housing 6 without shaft 2 and without Turbine wheel 3.
  • Figure 5 is a variant the flange connection between the bearing housing. 5 and the turbine housing 6.
  • an insulating layer 18 is arranged, the heat transfer from the turbine housing. 6 reduced to the bearing housing 5.
  • the heat transfer between the flanges 12, 13 can but also be hampered by the fact that the mutual Installation of the flanges 12, 13 takes place only via webs 19, 20, as can be seen in the detail of Figure 6.
  • the Webs 19, 20 extend annularly over the entire Circumference of the flanges 12, 13 and therefore close one Cavity 21 a.
  • the small cross-sectional area of the webs 19, 20 obstructs the heat conduction from the turbine housing 6 belonging flange 12 on the bearing housing 5 belonging Flange 13.
  • the turbine housing 6 on an outer side be provided with a coating that the heat transfer improved to the environment, so a better thermal conductivity and / or a higher heat emissivity has as the material from which the turbine housing. 6 consists.
  • the turbine housing 6 on his Inner side with a heat absorption reducing coating be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
EP05009768A 2004-05-18 2005-05-04 Turbocompresseur pour gaz d'échappement Withdrawn EP1598521A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07000729A EP1795711A2 (fr) 2004-05-18 2005-05-04 Turbocompresseur à gaz d'échappement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004025049 2004-05-18
DE102004025049A DE102004025049A1 (de) 2004-05-18 2004-05-18 Abgasturbolader

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP07000729A Division EP1795711A2 (fr) 2004-05-18 2005-05-04 Turbocompresseur à gaz d'échappement

Publications (1)

Publication Number Publication Date
EP1598521A1 true EP1598521A1 (fr) 2005-11-23

Family

ID=34936133

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07000729A Withdrawn EP1795711A2 (fr) 2004-05-18 2005-05-04 Turbocompresseur à gaz d'échappement
EP05009768A Withdrawn EP1598521A1 (fr) 2004-05-18 2005-05-04 Turbocompresseur pour gaz d'échappement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07000729A Withdrawn EP1795711A2 (fr) 2004-05-18 2005-05-04 Turbocompresseur à gaz d'échappement

Country Status (4)

Country Link
US (2) US20050257522A1 (fr)
EP (2) EP1795711A2 (fr)
JP (1) JP2005330968A (fr)
DE (1) DE102004025049A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103850727A (zh) * 2012-11-28 2014-06-11 霍尼韦尔国际公司 涡轮增压器的抽吸密封

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008202544A (ja) * 2007-02-21 2008-09-04 Mitsubishi Heavy Ind Ltd ロータの製造方法及びこのロータをそなえた排気ターボ過給機
DE102008038007A1 (de) 2008-08-16 2010-02-18 Bosch Mahle Turbo Systems Gmbh & Co. Kg Abgasturbolader
DE102008058507A1 (de) * 2008-11-21 2010-05-27 Bosch Mahle Turbo Systems Gmbh & Co. Kg Ladeeinrichtung
DE102008058506A1 (de) * 2008-11-21 2010-05-27 Bosch Mahle Turbo Systems Gmbh & Co. Kg Ladeeinrichtung
DE102009014005A1 (de) * 2009-03-19 2010-09-23 Bosch Mahle Turbo Systems Gmbh & Co. Kg Rotierende Strömungsmaschine
JP5843757B2 (ja) * 2009-05-19 2016-01-13 ボーグワーナー インコーポレーテッド ターボチャージャ
DE102009023891A1 (de) * 2009-06-04 2011-03-31 Continental Automotive Gmbh Magnetgelagerte Rotorwelle für Abgasturbolader
DE102009058411A1 (de) * 2009-12-16 2011-06-22 BorgWarner Inc., Mich. Abgasturbolader
DE102010011486A1 (de) 2010-03-16 2011-09-22 Bosch Mahle Turbo Systems Gmbh & Co. Kg Rotor für eine Ladeeinrichtung
US20110280716A1 (en) * 2010-05-17 2011-11-17 Douglas Gerard Konitzer Gas turbine engine compressor components comprising thermal barriers, thermal barrier systems, and methods of using the same
DE102010050913A1 (de) 2010-11-11 2012-05-16 Pierburg Gmbh Abgasturbolader
KR101889358B1 (ko) * 2011-05-10 2018-08-17 보르그워너 인코퍼레이티드 배기가스 터보차저
ES2470322T3 (es) * 2011-11-09 2014-06-23 Isolite Gmbh Carcasa de turbina en varias partes para un turbocargador
JP6111260B2 (ja) * 2011-11-23 2017-04-05 ボーグワーナー インコーポレーテッド 排気ガスターボチャージャ
DE112012004531T5 (de) * 2011-12-09 2014-08-07 Borgwarner Inc. Lagergehäuse eines Abgasturboladers
CN104204538B (zh) * 2012-03-27 2018-05-22 博格华纳公司 用于保护涡轮增压器铝轴承壳体的系统和方法
TWM446226U (zh) * 2012-09-04 2013-02-01 Tan Xin Technology Dev Inc 渦輪增壓器之殼體
DE102014201732B4 (de) 2013-02-28 2024-03-28 Ford Global Technologies, Llc Brennkraftmaschine mit flüssigkeitsgekühlter Turbine
DE102013111562A1 (de) * 2013-10-21 2015-04-23 Ihi Charging Systems International Gmbh Abgasturbolader
DE102014201411A1 (de) * 2014-01-27 2015-08-13 Ford Global Technologies, Llc Brennkraftmaschine mit gekühlter Turbine
US10041400B2 (en) * 2016-05-20 2018-08-07 Borgwarner Inc. Hollow filled turbocharger rotor shaft
US10690136B2 (en) 2016-11-04 2020-06-23 Ford Global Technologies, Llc Supercharged internal combustion engine with compressor
DE102016221639B4 (de) * 2016-11-04 2021-11-25 Ford Global Technologies, Llc Aufgeladene Brennkraftmaschine mit gekühltem Verdichter
US10487741B2 (en) * 2018-02-27 2019-11-26 GM Global Technology Operations LLC Turbo vane and compressor for turbocharger
JP7490508B2 (ja) * 2020-09-09 2024-05-27 日本電子株式会社 三次元積層造形装置
CN118043559A (zh) * 2021-10-01 2024-05-14 克里奥斯塔股份有限公司 用于低温涡轮机的整体式轴、低温涡轮机和制造方法

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US4557704A (en) * 1983-11-08 1985-12-10 Ngk Spark Plug Co., Ltd. Junction structure of turbine shaft
US5129784A (en) * 1990-08-23 1992-07-14 Ngk Spark Plug Co., Ltd. Ceramic rotor and metal shaft assembly
US5174733A (en) * 1990-08-22 1992-12-29 Ngk Spark Plug Co., Ltd. Supercharger

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Publication number Priority date Publication date Assignee Title
US4557704A (en) * 1983-11-08 1985-12-10 Ngk Spark Plug Co., Ltd. Junction structure of turbine shaft
US5174733A (en) * 1990-08-22 1992-12-29 Ngk Spark Plug Co., Ltd. Supercharger
US5129784A (en) * 1990-08-23 1992-07-14 Ngk Spark Plug Co., Ltd. Ceramic rotor and metal shaft assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103850727A (zh) * 2012-11-28 2014-06-11 霍尼韦尔国际公司 涡轮增压器的抽吸密封
CN103850727B (zh) * 2012-11-28 2017-08-01 霍尼韦尔国际公司 涡轮增压器的抽吸密封

Also Published As

Publication number Publication date
EP1795711A2 (fr) 2007-06-13
US20050257522A1 (en) 2005-11-24
DE102004025049A1 (de) 2005-12-15
JP2005330968A (ja) 2005-12-02
US20070113552A1 (en) 2007-05-24

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