EP1672178A2 - Turbine casing of an exhaust turbocharger with variable turbine geometry - Google Patents

Turbine casing of an exhaust turbocharger with variable turbine geometry Download PDF

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Publication number
EP1672178A2
EP1672178A2 EP05024051A EP05024051A EP1672178A2 EP 1672178 A2 EP1672178 A2 EP 1672178A2 EP 05024051 A EP05024051 A EP 05024051A EP 05024051 A EP05024051 A EP 05024051A EP 1672178 A2 EP1672178 A2 EP 1672178A2
Authority
EP
European Patent Office
Prior art keywords
recesses
turbine housing
turbine
exhaust gas
spacer elements
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.)
Granted
Application number
EP05024051A
Other languages
German (de)
English (en)
Other versions
EP1672178A3 (fr
EP1672178B1 (fr
Inventor
Andreas Sterner
Ralph Ronneburger
Günther Weinland
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1672178A2 publication Critical patent/EP1672178A2/fr
Publication of EP1672178A3 publication Critical patent/EP1672178A3/fr
Application granted granted Critical
Publication of EP1672178B1 publication Critical patent/EP1672178B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/243—Flange connections; Bolting arrangements
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/165—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line
    • 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
    • F01D25/12—Cooling

Definitions

  • the invention relates to a turbine housing of an exhaust gas turbocharger with adjustable turbine geometry according to the features of the preamble of patent claim 1.
  • Exhaust gas turbochargers in which the boost pressure can be regulated by means of adjustable guide vanes are known, for example, from DE 103 12 324 B3.
  • a Leitschaufelapparat is attached, which consists of a support ring for the vanes and a cover, which is opposite to the support ring while maintaining a Leitschaufel- gap distance.
  • spacer elements for example in the form of spacers, provided, which are held or penetrated by corresponding fasteners, eg in the form of mounting screws.
  • the spacer elements which are penetrated by the holding elements. If the spacer elements are acted upon by the hot exhaust gas flow, they expand accordingly in the longitudinal direction, while the retaining elements are still relatively cold. This can lead to an inadmissible elongation of the holding elements beyond their elastic limit. In a subsequent load jump (full load direction lower part load), conversely, first the spacer element is cooled by the exhaust gas flow, while the holding element is still relatively hot. This leads to temporally faster shrinkage of the spacer element relative to the holding element; If the retaining element is designed as a fastening screw, this leads to a loss of preload force. Due to the loss of prestressing force, the fixing screw must now absorb all lateral forces that occur due to engine operation, which may lead to component failure of the fastening screw.
  • the object of the invention is to overcome the disadvantages described above, so that a safe continuous operation of the VTG supercharger is guaranteed.
  • the recesses provided in the spacer elements ensure that the retaining element is also acted upon directly by the exhaust gas mass flow. This leads - with the same or similar material properties - to a uniform expansion and shrinkage behavior of both components, so that a durable fixation is ensured.
  • the recesses which allow a direct loading of the holding elements by the exhaust gas flow are introduced in an advantageous manner in the lateral surface of the spacer elements.
  • the recesses are in a simple manner as holes - for example, four pieces, each offset by 90 ° radially to each other introduced into the lateral surface - executed.
  • the recesses are formed as slots, which are introduced from the end face of the spacer elements ago.
  • the spacer elements engage positively with their end faces. This creates a fit, are taken over the transverse forces, so that the holding elements are substantially free of lateral forces at this point.
  • a Leitschaufelapparates 4 is arranged in the turbine housing 2 of a so-called VTG exhaust gas turbocharger.
  • the Leitschaufelapparat 4 consists of a support ring 6, are attached to the adjustable to control the boost pressure guide vanes 8.
  • the guide vanes 8 are limited on their exhaust gas outlet 10 associated end face by a cover ring 12.
  • spacer elements which are formed in the present case as spacers 14 and distributed radially on the circumference of the carrier and cover ring 6, 12, the axial vane gap is defined.
  • the spacers 14 are held by means of fastening elements which are formed in the present embodiment as fastening screws 16.
  • fastening elements for the spacers 14 bolts, pins or the like would alternatively be conceivable.
  • a first embodiment of a spacer sleeve 14 is shown in the four radially offset by 90 ° to each other recesses in the form of holes 20a to 20d (in the sectional view of FIG. 2 only two holes are visible) are provided.
  • the four holes 20a to 20d are in communication with the passage opening 18 of the spacer sleeve 14, so that during operation of the exhaust gas turbocharger, the exhaust gas flow via the bores 20a to 20d directly to the Fixing screws 16 passes.
  • recesses - which are adapted in their shape and number according to the specific embodiment - possible.
  • a second possible embodiment of a spacer sleeve 14 ' in which the recesses are designed as two cross-shaped mutually arranged slots 22a to 22d. These slots 22a to 22d are respectively at the left and right end side of the spacer sleeve 14 '- for example, with a milling tool - introduced.
  • the circular arc-shaped slots 22 have a depth which allow analogous to the embodiment of FIG. 2, a direct loading of the mounting screws 16 with the exhaust gas flow.
  • the diameter of the through hole 18 of the spacer sleeve 14 ' is selected to be greater than the outer diameter of the fastening screws 16, so that the exhaust gas flow through the slots 22a to 22d on the mounting screw 16 along.
  • the spacers 14, 14 'at the end in circular recesses 24 of the carrier and cover ring 6, 12 are added.
  • the recesses 24 are dimensioned so that the spacers 14 are held in a form-fitting manner therein. By this play-free fit shear forces can be absorbed, so that the screw itself remains free of transverse force.
  • the circular recesses 24 can be introduced, for example, in a die sinking process in carrier and cover ring 6, 12.
  • a tool with, for example, three pins is provided, by means of which the lowering process can be performed in one operation.
  • the circular recesses 24 can also be made by means of a casting process, e.g. in the MIM (Metal Injection Molding) method or by investment casting.
  • the spacer sleeves 14, 14 ' are optionally aligned with the aid of corresponding positioning pins such that a optimal and uniform admission is ensured with the exhaust gas mass flow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Control Of Turbines (AREA)
EP05024051A 2004-12-10 2005-11-04 Turbine casing of an exhaust turbocharger with variable turbine geometry Expired - Lifetime EP1672178B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004059803 2004-12-10
DE102005001864A DE102005001864B3 (de) 2004-12-10 2005-01-14 Turbinengehäuse eines Abgasturboladers mit verstellbarer Turbinengeometrie

Publications (3)

Publication Number Publication Date
EP1672178A2 true EP1672178A2 (fr) 2006-06-21
EP1672178A3 EP1672178A3 (fr) 2006-08-23
EP1672178B1 EP1672178B1 (fr) 2010-01-20

Family

ID=35406712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05024051A Expired - Lifetime EP1672178B1 (fr) 2004-12-10 2005-11-04 Turbine casing of an exhaust turbocharger with variable turbine geometry

Country Status (4)

Country Link
US (1) US7399156B2 (fr)
EP (1) EP1672178B1 (fr)
JP (1) JP4224489B2 (fr)
DE (2) DE102005001864B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008039093A1 (de) * 2008-08-21 2010-02-25 Bosch Mahle Turbo Systems Gmbh & Co. Kg Abgasturbolader für ein Kraftfahrzeug

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007010840A1 (de) * 2007-03-06 2008-09-11 Volkswagen Ag Abgasturbolader für eine Brennkraftmaschine
DE102007029004A1 (de) 2007-06-23 2008-12-24 Ihi Charging Systems International Gmbh Abgasturbolader für eine Brennkraftmaschine
US8267647B2 (en) * 2008-07-09 2012-09-18 Borgwarner Inc. Variable geometry turbocharger lower vane ring retaining system
JP5452991B2 (ja) * 2008-07-10 2014-03-26 ボーグワーナー インコーポレーテッド 段付きスペーサを有する可変ジオメトリのベーンリング組立体
DE102011075794A1 (de) * 2011-05-13 2012-11-15 Bosch Mahle Turbo Systems Gmbh & Co. Kg Variable Turbinen-/Verdichtergeometrie
US8985943B2 (en) * 2011-09-30 2015-03-24 Honeywell International Inc. Turbocharger variable-nozzle assembly with vane sealing arrangement
US20150110608A1 (en) * 2012-04-03 2015-04-23 Borgwarner Inc. Retention system and method for vane ring assembly
KR101917223B1 (ko) * 2012-04-24 2019-01-29 보르그워너 인코퍼레이티드 Vtg 터보차저를 위한 베인 팩 조립체
KR102076117B1 (ko) * 2012-05-04 2020-02-11 보르그워너 인코퍼레이티드 가변 터빈 구조 베인 팩을 위한 베이오넷 스페이서 유지 시스템
CN102828786B (zh) * 2012-09-12 2016-02-10 湖南天雁机械有限责任公司 可变截面涡轮增压器固定喷嘴环
JP6349745B2 (ja) * 2014-01-29 2018-07-04 株式会社Ihi 可変ノズルユニット及び可変容量型過給機
US9651091B2 (en) * 2014-04-01 2017-05-16 Hamilton Sundstrand Corporation Thrust plate assembly
JP2015217252A (ja) * 2014-05-21 2015-12-07 サンライズ産業株式会社 調理用器具
DE102015215492A1 (de) * 2015-08-13 2017-02-16 Bosch Mahle Turbo Systems Gmbh & Co. Kg Verfahren zum Herstellen einer variablen Turbinengeometrie eines Abgasturboladers
US11067098B2 (en) 2018-02-02 2021-07-20 Carrier Corporation Silencer for a centrifugal compressor assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10312324B3 (de) 2003-03-19 2004-06-17 Borgwarner Turbo Systems Gmbh Turbinengehäuse eines Abgasturboladers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657476A (en) * 1984-04-11 1987-04-14 Turbotech, Inc. Variable area turbine
JP2001289050A (ja) * 1999-05-20 2001-10-19 Hitachi Ltd 可変容量ターボ過給機
DE50304673D1 (de) * 2003-10-27 2006-09-28 Borgwarner Inc Strömungsmaschine und Verfahren zum Herstellen eines Leitgitters

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10312324B3 (de) 2003-03-19 2004-06-17 Borgwarner Turbo Systems Gmbh Turbinengehäuse eines Abgasturboladers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008039093A1 (de) * 2008-08-21 2010-02-25 Bosch Mahle Turbo Systems Gmbh & Co. Kg Abgasturbolader für ein Kraftfahrzeug

Also Published As

Publication number Publication date
EP1672178A3 (fr) 2006-08-23
JP2006170196A (ja) 2006-06-29
DE502005008905D1 (de) 2010-03-11
JP4224489B2 (ja) 2009-02-12
US7399156B2 (en) 2008-07-15
US20060188367A1 (en) 2006-08-24
DE102005001864B3 (de) 2006-01-12
EP1672178B1 (fr) 2010-01-20

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