WO2010036588A2 - Turbocharger and holding disk therefor - Google Patents
Turbocharger and holding disk therefor Download PDFInfo
- Publication number
- WO2010036588A2 WO2010036588A2 PCT/US2009/057615 US2009057615W WO2010036588A2 WO 2010036588 A2 WO2010036588 A2 WO 2010036588A2 US 2009057615 W US2009057615 W US 2009057615W WO 2010036588 A2 WO2010036588 A2 WO 2010036588A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- holding disk
- exhaust gas
- turbocharger
- holding
- 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
Links
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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
- F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
- F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
-
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
-
- 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
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
-
- 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
- F02B37/12—Control of the pumps
- F02B37/22—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits
-
- 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
Definitions
- the invention relates to a no_ding ⁇ isk for use m turbochargers, i ⁇ particular for a diesel e n gme, according to the preamble of claim 1, and to an exhaust gas t ⁇ rbocharger comprising a holding disk according to the preamole of claim 4.
- Exhaust gas turbochargers are systems mtenoed to increase the power of piston engi n es.
- the energy of the exhaust gases is use ⁇ to increase the power.
- the increase in power is a result of the increase in " Che throug h put of mixture per working stroke.
- a turbociarger substantially comprises a ⁇ exhaust gas turome with a shaft and a compressor, wherein the compressor arranged m the intake tract of the engine is connected to th ⁇ s ⁇ aft and the blade whee_s _ocated m the casing of the exhaust gas turb_ne a ⁇ d the compressor rotate.
- adjusti n g blades are additionally mounted rotatably in a b_ade oearing ⁇ g ⁇ tn ⁇ are move ⁇ by means of an adjusting ring arrange ⁇ in the turbi n e casing of the turbocrarger.
- a ring arranged in tne turbine casing (said ring a.bo being referred to as a holding oisk) axially oelimits the flow space which is forme ⁇ by the adjusting blades. Screws are usually used to faster this rirg to the blade Gearing ring at a predefined distance, wherein the distance is set by spacers at a predefme ⁇ level so as to pro ⁇ uce a flow ouct having oesirable dimensions.
- Heat-resistant materials for exhaust gas turbochargers ana the individual compone n ts t h ereof are known from EP
- a suitaole material is considered as being one which has a specific composition, wherein the surface of the compone n ts may be coated with a chromium carbide layer stnd the material co n tai n s a small amount of small, non-metallic inclusions. This is intended to achieve a ⁇ eat resistance of the turoocharger of up to 700 0 C or more.
- an object of the present inve n tion is to provide a holding disk according to the preamble of claim 1 or a turbocnarger according to the preamole of claim 4 which has improved temperature and oxidatio ⁇ resistance and corrosion resistance at extreme temperatures and also corresponding wet-corrosion resistance ana which is aistmguisned by optimum tribological properties ana additionally displays a reduced susceptibility to wear.
- cons_stirg of a ⁇ austen_tic iron-based alloy achieves better temperature resistance of tne material.
- T n is resistance is increased many times over by the den ⁇ tic carbi ⁇ e precipitations, w ⁇ ich are present m the iron-baseo alloy, and inclusions of nitrogen.
- the holding disk accord_ng to the invention also remains oimensionally stable and therefore very even.
- n at caroide precipitations m the forir of dendrites increase the staoility of t h e alloy material by forming fine ranifications in the microstr ⁇ cture of tne material whic" pro/ide a supporting effect, a ⁇ d therefore th_s considerably i n creases the strength of the material and therefore the strength of the holding disk according to the i n vention owing to its u n ique structure .
- the maximum wear rate cf the holding disk according to tie _nve A tio ⁇ is less than 0.05 mm.
- the evenness of the material of the ⁇ old ⁇ ng d-.sk according to the invention is less than 0.1 mm at a test diameter or 70 mm. - A -
- the holding d_ ⁇ sk according to the invention is distinguished by a specific composition containing the following components: C: 0.1 to 0.6 by weight, Cr: 22 to z" o Joy weight, Ni: 6.5 to 15° by weight, Mn: 7.5 zo 14.5' by weight, Si: ⁇ Io by weight, V: 0.75 to 2.5 o Dy weight, N: 0.1 to 0.7 by weight and Fe .
- This composition according to the invention provides a holding disk which has a particularly high high-temperature stre n gth and temperature resistance (even up to 9CO 0 C) and is distinguished by outstanding sliding properties ana therefore particu_arly low s.iding wear or abrasive wear.
- the material and therefore the holdirg disk according to the invention are additionally extremely ⁇ imensionally stable.
- Figure 1 shews a perspective view, shown partially m section, of a turbocharger according to the invention.
- Figure 1 shows a turbocharger 1 according to the invention which has a turome casing 2 and a compressor casing 3 which is connected to the latter via a bearing casing 28.
- the casings 2, 3 ana 28 are arranged, along an axis of rotatio" R.
- the turbine casing i& shown partially ⁇ n section m oroer to illustrate the arrangement of a blaoe bearing ring 6 and a radially outer guide grate 18 which is formed oy said ring ana has a plurality of adjusting blades 7 whic ⁇ are distributed over the circumference and have rotary axles 8.
- nozzle cross sections are formed which, dependi n g on tne position of the adjusting blades 7, are larger or smaller and act to a greater or lesser extent upon the turbine rotor 4 positioned i ⁇ the center on the axis of rotation R with the exhaust gas from an engine, said exhaust gas being supplied via a supply duct 9 ana discharged via a central connection piece 10, m order to drive a compressor w ⁇ eel 17 seated on the same shaft using the turbine rotor 4.
- an actuating device 11 is provided. This may be designed m any desired way, b ⁇ t a preferred embodiment has a control casing 12 w ⁇ ch controls the control movement of a tappet memoer 14 fastened to it, m order to convert the movement of said tappet member onto an adjusting ring 5, located behind the cla ⁇ e oeaiing ring 6, into a slig h t rotational movement of said adjusting ring.
- a free sp ⁇ tce 13 for the adjusting blades 7 is formed between the blade bearing ring 6 and an annular part 15 of the turbine casing 2. So that this free space 13 can be ensured, the blade bearing ring 6 has spacers 16. The free space for the turbine blades 7 is delimited toward the top via the spacers 6 by the holding disk 19 according to the invention.
- An alloy from which a holding disk according to the invention was formed was produced from the following elements by means of a conventional process. Chemical analysis resulted in the following values for the elements: C: 0.1 to 0.5% by weight; Cr: 23 to 26% by weight; Ni: 6.5 to 12.5°, by weight; Mn: 7.5 to 12°, by weight; Si: max. 1% by weight; Nb: 0.75 to 1.7 c by weight; N: 0.1 to 0.5i by weight; V: 0.8 to 1.7i by weight; remainder: iron.
- the adjusting ring produced according to this example was distinguished by a tensile strength P n of 668 MPa
- the yield strength R P 0.2 (measured using a standard process) was 384 MPa.
- the elongation at break of the material (measured using a standard process) was 13.1%.
- the hardness of the material (measured according to ASTM E 92 / ISO 6507-1) was 207 HB.
- the coefficient of linear expansion (measured using a standard process) was 16.9 K "1 (20 to 900 0 C).
- the material was subjected to a validation test series comprising the following tests :
- the component was distinguished by an outstanding resistance to the acting forces. Therefore, the material had extremely high wear resistance and outstanding oxidation resist ⁇ tnce so that corrosion and wear on the material under the stated conditions were considerably reduced and therefore the resistance of the material was also ensured for a long period of time .
- the component according to the invention was subjected to a thermal cycle test in which the thermal shocks were carried out as follows:
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Supercharger (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention describes a holding disk for use in turbochargers, in particular for diesel engines, said holding disk consisting of an iron-based alloy having an austenitic base structure with dendritic carbide precipitations.
Description
TURBOCπARGΞR AND HOLDING DISK THEREFOR
DESCRIPTION
The invention relates to a no_ding αisk for use m turbochargers, i^ particular for a diesel engme, according to the preamble of claim 1, and to an exhaust gas t^rbocharger comprising a holding disk according to the preamole of claim 4.
Exhaust gas turbochargers are systems mtenoed to increase the power of piston engines. In an exnaust gas turυocharger, the energy of the exhaust gases is useα to increase the power. The increase in power is a result of the increase in "Che throughput of mixture per working stroke.
A turbociarger substantially comprises a^ exhaust gas turome with a shaft and a compressor, wherein the compressor arranged m the intake tract of the engine is connected to th^ s^aft and the blade whee_s _ocated m the casing of the exhaust gas turb_ne a^d the compressor rotate. In the case of a turbocharger having a variable turbine geometry, adjusting blades are additionally mounted rotatably in a b_ade oearing π^g εtnα are moveα by means of an adjusting ring arrangeα in the turbine casing of the turbocrarger. Together with the Jolade bearing ring, a ring arranged in tne turbine casing (said ring a.bo being referred to as a holding oisk) axially oelimits the flow space which is formeα by the adjusting blades. Screws are usually used to faster this rirg to the blade Gearing ring at a predefined distance, wherein the distance is set by spacers at a predefmeα level so as to proαuce a flow ouct having oesirable dimensions.
Extremely high demanαs are made on the material of the holding d_i_sk. The material wiruch forms the holding αisk has to oe heat-resistant, i.e. it still has to display
sufficient strength even at very hig° temperatures of up to about 9000C. In add_tio^, the material has to have h_gh wear resistance and corresponding oxidation resistance so that the corrosion and wear on the material are reduced and therefore the resistance of the material remains ensured under r.re e/trene operating conditions .
Heat-resistant materials for exhaust gas turbochargers ana the individual components thereof are known from EP
1 396 620 Al. In this document, a suitaole material is considered as being one which has a specific composition, wherein the surface of the components may be coated with a chromium carbide layer stnd the material contains a small amount of small, non-metallic inclusions. This is intended to achieve a ^eat resistance of the turoocharger of up to 7000C or more.
In view of this, an object of the present invention is to provide a holding disk according to the preamble of claim 1 or a turbocnarger according to the preamole of claim 4 which has improved temperature and oxidatio^ resistance and corrosion resistance at extreme temperatures and also corresponding wet-corrosion resistance ana which is aistmguisned by optimum tribological properties ana additionally displays a reduced susceptibility to wear.
This obiect is achieved by means of the features of claim 1 and of claim 4.
The design, according to the invention, of a roldmg αisk, or of an ex aust gas turbocnarger comprising sue" a holding disk, cons_stirg of a^ austen_tic iron-based alloy achieves better temperature resistance of tne material. Tnis resistance is increased many times over by the denαπtic carbiαe precipitations, wπich are present m the iron-baseo alloy, and inclusions of
nitrogen. This proviαes a holding disk, or an exhaust gas turbocharger which contains the holding disk according to the _nveAtioA, which has an optmum temperature resistance m the range of up to QOO0C, is also very resistant to high temperatures, has hign w^ar ana corrosion resistance and is also distinguished by very good sliding propert_es along with a reduced tendency to be oxidized.
The holding disk accord_ng to the invention also remains oimensionally stable and therefore very even.
Without being bound to the theory, it i& assumed :nat caroide precipitations m the forir of dendrites increase the staoility of the alloy material by forming fine ranifications in the microstrαcture of tne material whic" pro/ide a supporting effect, a^d therefore th_s considerably increases the strength of the material and therefore the strength of the holding disk according to the invention owing to its unique structure .
At a bearing load of about 10 K/mn?, a sliding speeo of 0.0025 m/s, a component temperature of 500 to 90C0C, a surface roαgπness Rz of 6.3, α test duration of 500 h, a clock frequency of C.2 ~τz, an ad~ustme^t a^gle of 45°, a friction value cf 0.28, a ccntact area of 10 mm2, a pressure pulsation of more t^an zOO mbar, an ex^a^st gas pressure of more than 1.5 bar and with a diesel exhaust gas as the test medium, the maximum wear rate cf the holding disk according to tie _nveAtioΛ is less than 0.05 mm.
During a thermal shock cycle test, the evenness of the material of the ^old^ng d-.sk according to the invention is less than 0.1 mm at a test diameter or 70 mm.
- A -
The dependent claims contain aαvantageous developments of the invention,
In one embodiment, the holding d_^sk according to the invention is distinguished by a specific composition containing the following components: C: 0.1 to 0.6 by weight, Cr: 22 to z" o Joy weight, Ni: 6.5 to 15° by weight, Mn: 7.5 zo 14.5' by weight, Si: ≤ Io by weight, V: 0.75 to 2.5 o Dy weight, N: 0.1 to 0.7 by weight and Fe .
The influence of the individual elements on an iron- baseα alloy is known, but it has now surprisingly bee^ founα that precisely the combination descnoed gives a material which, when processed to forn a holding disk, imparts a particularly balanced property profile to said holding disk. This composition according to the invention provides a holding disk which has a particularly high high-temperature strength and temperature resistance (even up to 9CO0C) and is distinguished by outstanding sliding properties ana therefore particu_arly low s.iding wear or abrasive wear. In addition, "che corrosion res_stance _s maximized; this also applies m particular to wet corrosion. The material and therefore the holdirg disk according to the invention are additionally extremely αimensionally stable.
Therefore, a material according to the indention which is proαuceα m this way has the following properties:
- o -
According to a farther eirbodmert of the
the holding disk according to the m/e":_o" is free fron sigma pnases. This prevents the material from becoming brittle and increases the curability thereof. S^gna phases are υπttle, sintered meta_lic pnases of h_gh hardness. T~ey arise 'wei1 a boαy-centered cubic rretal ana a face-centereα cubic metal, whose atomic raαn match with only a slight discrepancy, strike one another. Sigma ohases of this tyoe εtre unoesirable since they have an emorittlmg effect and a^so because of the property of the matrix to withdraw chromiur. As a result, the material according to the mve"t-_o" is distinguished m that it _s free from sigmεt phases. This prevents tre material from becoming brittle and increases tne durability tnereof . The reduction i~ or prevention of the format^©" of sigma phases i._. achie/ed m that the silicon content m t^e alloy materia- _s reduced to less than 1.3 by weight aid preferably _ess than 1 Joy we^g^t. In addition, it is advantageous to use auSteute formers suι_h as, for example, manganese, nitroσer and nickel, if appropriate m combination.
^s an ooject which can be dealt vitn independently, clam 4 defines an exhaust gas turbocharger comprising a holding disk, as already described, cons_sti^g of an austeriitic base structure with denαritic carJoide precipitations.
Figure 1 shews a perspective view, shown partially m section, of a turbocharger according to the invention. Figure 1 shows a turbocharger 1 according to the invention which has a turome casing 2 and a compressor casing 3 which is connected to the latter via a bearing casing 28. The casings 2, 3 ana 28 are arranged, along an axis of rotatio" R. The turbine casing i& shown partially ^n section m oroer to illustrate the arrangement of a blaoe bearing ring 6 and a radially outer guide grate 18 which is formed oy said ring ana has a plurality of adjusting blades 7 whicκ are distributed over the circumference and have rotary axles 8. In this way, nozzle cross sections are formed which, depending on tne position of the adjusting blades 7, are larger or smaller and act to a greater or lesser extent upon the turbine rotor 4 positioned i^ the center on the axis of rotation R with the exhaust gas from an engine, said exhaust gas being supplied via a supply duct 9 ana discharged via a central connection piece 10, m order to drive a compressor w^eel 17 seated on the same shaft using the turbine rotor 4.
In orαer to control the movement or the position of the adjusting blades 7, an actuating device 11 is provided. This may be designed m any desired way, b^t a preferred embodiment has a control casing 12 wπch controls the control movement of a tappet memoer 14 fastened to it, m order to convert the movement of said tappet member onto an adjusting ring 5, located behind the claαe oeaiing ring 6, into a slight rotational movement of said adjusting ring. A free spεtce 13 for the adjusting blades 7 is formed between
the blade bearing ring 6 and an annular part 15 of the turbine casing 2. So that this free space 13 can be ensured, the blade bearing ring 6 has spacers 16. The free space for the turbine blades 7 is delimited toward the top via the spacers 6 by the holding disk 19 according to the invention.
- EXAMPLE -
An alloy from which a holding disk according to the invention was formed was produced from the following elements by means of a conventional process. Chemical analysis resulted in the following values for the elements: C: 0.1 to 0.5% by weight; Cr: 23 to 26% by weight; Ni: 6.5 to 12.5°, by weight; Mn: 7.5 to 12°, by weight; Si: max. 1% by weight; Nb: 0.75 to 1.7 c by weight; N: 0.1 to 0.5i by weight; V: 0.8 to 1.7i by weight; remainder: iron.
The adjusting ring produced according to this example was distinguished by a tensile strength Pn of 668 MPa
(ASTM E 8M / EN 10002-1; at elevated temperature: EN
10002-5}. The yield strength RP 0.2 (measured using a standard process) was 384 MPa. The elongation at break of the material (measured using a standard process) was 13.1%. The hardness of the material (measured according to ASTM E 92 / ISO 6507-1) was 207 HB. The coefficient of linear expansion (measured using a standard process) was 16.9 K"1 (20 to 9000C). The material was subjected to a validation test series comprising the following tests :
- open-air weathering test climate change test thermal shock test/cycle test - 300 h - hot gas corrosion test in cracking furnace
In all the tests, the component was distinguished by an outstanding resistance to the acting forces. Therefore,
the material had extremely high wear resistance and outstanding oxidation resistεtnce so that corrosion and wear on the material under the stated conditions were considerably reduced and therefore the resistance of the material was also ensured for a long period of time .
Thermal cycle test:
The component according to the invention was subjected to a thermal cycle test in which the thermal shocks were carried out as follows:
1. Use of stationary rotors;
2. 2-EGT operation; 3. Test duration: 350 h (about 2000 cycles);
4. The exhaust gas flap of the EGTs remains open by 15° throughout the test;
5. High temperature: nominal horsepower point T3 = 7500C, mass flow EGT on the turbine side: 0.5 kg/s;
6. Low temperature: T3 = 1000C, mass flow EGT on the turbine side: 0.5 kg/s;
7. Cycle duration: 2 x 5 min. (10 min . } ; c. Carrying out three intermediate crack tests.
List of reference symbols
1 Turbocharger
2 Turbine casing 3 Compressor casing
4 Turbine rotor
5 Adjusting ring
6 Blade bearing ring
7 Adjusting blades 8 Rotary axles
9 Supply ouct
10 Axial connection piece
11 Actuating device
12 Control casing 13 Free space for adjusting blades 7
14 Tappet member
15 Annular part of i~he turbine casing 2
16 Spacer/spacer boss
17 Compressor v/heel 18 Guide grate
19 Holding disk
28 Bearing casing
R Axis of rotation
Claims
1. A holding disk for use in turbochargers, in particular for diesel engines, said holding disk consisting of an iron-based alloy having an austenitic base structure with dendritic carbide precipitations.
2. The holding disk as claimed in claim 1, wherein it contains the following components: C: 0.1 to 0.6°c by weight, Cr: 22 to 27% by weight, Ni: 6.5 to 15° by weight, Mn: 7.5 to 14.5% by weight, Si: ≤ 1% by weight, V: 0.75 to 2.5% by weight, N: 0.1 to 0.7c by weight and Fe.
3. The holding disk as claimed in claim 1, wherein it is free from sigma phases.
4. An exhaust gas turbocharger for diesel engines, comprising a holding disk consisting of an austenitic base structure with dendritic carbide precipitations.
5. The exhaust gas turbocharger as claimed in claim 4, wherein the holding disk contains the following components : C: 0.1 to 0.6 o by weight, Cr: 22 to 21i by weight, Ni:
6.5 to 15% by weight, Mn: 7.5 to 14.5% by weight, Si: <
1% by weight, V: 0.75 to 2.5% by weight, N: O.i to 0.7% by weight and Fe.
6. The exhaust gas turbocharger as claimed in claim 4, wherein the material of the holding disk is free from sigma phases.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/062,735 US20110176912A1 (en) | 2008-09-25 | 2009-09-21 | Turbocharger and holding disk therefor |
| CN2009801355272A CN102149912A (en) | 2008-09-25 | 2009-09-21 | Turbocharger and holding disk therefor |
| JP2011529137A JP5864256B2 (en) | 2008-09-25 | 2009-09-21 | Turbocharger and retaining disk for turbocharger |
| DE112009002017T DE112009002017T5 (en) | 2008-09-25 | 2009-09-21 | Turbocharger and receiving slide for this |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008048883.6 | 2008-09-25 | ||
| DE102008048883 | 2008-09-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2010036588A2 true WO2010036588A2 (en) | 2010-04-01 |
| WO2010036588A3 WO2010036588A3 (en) | 2010-07-01 |
Family
ID=42060370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2009/057615 Ceased WO2010036588A2 (en) | 2008-09-25 | 2009-09-21 | Turbocharger and holding disk therefor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20110176912A1 (en) |
| JP (1) | JP5864256B2 (en) |
| KR (1) | KR20110063660A (en) |
| CN (1) | CN102149912A (en) |
| DE (1) | DE112009002017T5 (en) |
| WO (1) | WO2010036588A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014517152A (en) * | 2011-05-19 | 2014-07-17 | ボーグワーナー インコーポレーテッド | Austenitic iron-based alloys, turbochargers and components made therefrom |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101984705B1 (en) * | 2011-10-20 | 2019-05-31 | 보르그워너 인코퍼레이티드 | Turbocharger and a component therefor |
| US9534281B2 (en) | 2014-07-31 | 2017-01-03 | Honeywell International Inc. | Turbocharger turbine housings formed from the stainless steel alloys, and methods for manufacturing the same |
| US9896752B2 (en) | 2014-07-31 | 2018-02-20 | Honeywell International Inc. | Stainless steel alloys, turbocharger turbine housings formed from the stainless steel alloys, and methods for manufacturing the same |
| US10316694B2 (en) | 2014-07-31 | 2019-06-11 | Garrett Transportation I Inc. | Stainless steel alloys, turbocharger turbine housings formed from the stainless steel alloys, and methods for manufacturing the same |
| DE102020202736A1 (en) | 2020-03-04 | 2021-09-09 | Mahle International Gmbh | Metallic material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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-
2009
- 2009-09-21 JP JP2011529137A patent/JP5864256B2/en not_active Expired - Fee Related
- 2009-09-21 KR KR1020117007841A patent/KR20110063660A/en not_active Ceased
- 2009-09-21 DE DE112009002017T patent/DE112009002017T5/en not_active Withdrawn
- 2009-09-21 CN CN2009801355272A patent/CN102149912A/en active Pending
- 2009-09-21 WO PCT/US2009/057615 patent/WO2010036588A2/en not_active Ceased
- 2009-09-21 US US13/062,735 patent/US20110176912A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014517152A (en) * | 2011-05-19 | 2014-07-17 | ボーグワーナー インコーポレーテッド | Austenitic iron-based alloys, turbochargers and components made therefrom |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20110063660A (en) | 2011-06-13 |
| DE112009002017T5 (en) | 2011-07-28 |
| WO2010036588A3 (en) | 2010-07-01 |
| JP5864256B2 (en) | 2016-02-17 |
| US20110176912A1 (en) | 2011-07-21 |
| CN102149912A (en) | 2011-08-10 |
| JP2012503743A (en) | 2012-02-09 |
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