EP1512833A2 - Roue de roulement à haute vitesse - Google Patents

Roue de roulement à haute vitesse Download PDF

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Publication number
EP1512833A2
EP1512833A2 EP04018089A EP04018089A EP1512833A2 EP 1512833 A2 EP1512833 A2 EP 1512833A2 EP 04018089 A EP04018089 A EP 04018089A EP 04018089 A EP04018089 A EP 04018089A EP 1512833 A2 EP1512833 A2 EP 1512833A2
Authority
EP
European Patent Office
Prior art keywords
speed impeller
reinforcing sleeves
reinforcing
core structure
sleeves
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Withdrawn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
EP04018089A
Other languages
German (de)
English (en)
Inventor
Johann Dr. Krämer
Martin Dr. Schlegl
Erwin Schmidt
Holger Stark
Siegfried Sumser
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1512833A2 publication Critical patent/EP1512833A2/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Withdrawn legal-status Critical Current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
    • 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
    • F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
    • F01D5/043—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the axial inlet- radial outlet, or vice versa, type
    • F01D5/048—Form or construction
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors

Definitions

  • the invention relates to a high speed impeller for Delivery of gaseous or liquid media according to the generic term of claim 1 and the preamble of the claim Third
  • WO 02/01311 A1 is a rotor made of a composite material described, wherein different rings of fiber-reinforced Winding bodies are placed concentrically on top of each other and thus form a flat cylindrical rotor disk.
  • the object of the invention is a high speed impeller to provide that at a complex cross-sectional contour has an integrated gain.
  • the high speed impeller according to claim 1 is used for conveying gaseous or liquid media, wherein it For example, be used as a Heilverdichtungsrad can.
  • the high speed impeller has a reinforcing Core structure on top of an outer functional section is surrounded.
  • the invention is characterized in that for illustration the core structure reinforcing sleeves concentrically over each other pushed. Under “concentric sliding over each other” is understood here that the outer diameter of an inner Reinforcing sleeve insofar an inner diameter of a outer reinforcement sleeve balances that of the outer reinforcement sleeve with little play pushed over the inner reinforcement sleeve can be.
  • the length of a respective reinforcing sleeve varies in such a way that a given cross-sectional geometry the core contour can be approximated.
  • FIG. 3 Another aspect of the invention is a high speed impeller according to the features of claim 3 dar.
  • Such a high-speed impeller has like the high speed impeller of claim 1 also a reinforcing core structure, that of an outer functional section is surrounded.
  • the outer diameter however, the strung reinforcing sleeves vary for imaging a predetermined cross-sectional geometry of Core structure.
  • the functional section of the high speed impeller is also poured on the core structure.
  • Claim 3 achieves the same advantages as well as by the arrangement of the high speed impeller according to claim 1 are described.
  • the juxtaposition of the reinforcing sleeves with the congruent Overlying inner holes can be as described She may be delayed on a wave also be pushed onto a matching reinforcing sleeve. In this way, an additional radial and axial Solidification achieved.
  • the Reinforcement sleeves made of a fiber-reinforced material shown. Any form of fiber reinforced is suitable here Materials that significantly increase the tensile strength and thus a significant increase in strength of the high-speed impeller is achieved.
  • the reinforcing sleeves long fiber reinforced bobbins Such bobbins can either before starting the functional section already be infiltrated with a metal or you can while of casting the functional section with the metal of the functional section are infiltrated.
  • reinforcing sleeves of a short fiber reinforced Metal matrix composite material exist. Further can for the reinforcing sleeves one, infiltrated by metal porous ceramics are used. Also by such Reinforcement sleeves will increase the tensile strength and achieved the elastic modulus.
  • non-fiber reinforced high strength metal materials for example, from spray-compacted metal materials or of high-strength wrought alloys.
  • Such materials can usually be presented more cheaply as fiber reinforced materials and then find use when if the cost latitude for the component is lower.
  • High-speed wheels especially in exhaust gas turbochargers, this equally in use as a compressor or as a turbine wheel.
  • the wheels can also be more convenient As gas turbine wheels or water pump wheels be used.
  • FIG. 1 is a schematic representation of a high speed impeller in the form of a compressor wheel 2 for an exhaust gas turbocharger shown.
  • This compressor 2 has a functional section 6, the compressor blade, for example 7 includes.
  • the compressor wheel includes 2 a core structure 4, starting from a concentric Area around a hole 9 around in the center of the compressor wheel 2 extends with increasing diameter to the outside and formed as a support structure of the compressor blades 7 is.
  • a core structure 4 which consists of several Reinforcement sleeves 8, which are pushed concentrically over each other are shown.
  • Reinforcement sleeves 8 are only two reinforcing sleeves 8 with the corresponding Reference numerals provided, with corresponding designations are provided with the same reference numerals.
  • the reinforcing sleeves 8 have an outer diameter 12 and an inner diameter 14.
  • the outer diameter 12 of each reinforcing sleeve 8 designed such that he the inner diameter 14 of the following reinforcing sleeve. 8 in this respect corresponds, so that the two reinforcing sleeves. 8 can be pushed one above the other with little play (see FIG. right side).
  • can also be used to image the Cross-section of the core structure 4 has a wall thickness 13 of one Reinforcement sleeve 8 to the next reinforcing sleeve 8 vary.
  • FIG. 2 shows a plan view of the core structure 4 and in the lower part of the sketch a section through the core structure 4 shown.
  • the core structure 4 of FIG. 3 differs from that of FIG Core structure 4 in Figure 2 therein that reinforcing sleeves 20 are provided, each having an inner bore 22 with the same Have diameter.
  • the reinforcing sleeves 20 are lined up in such a way that the inner holes 22 congruent lie one above the other, with a matching reinforcing sleeve 26 is shown as having its outer diameter 28 play in the inner holes 22 of the reinforcing sleeves 20 play can be inserted.
  • the reinforcing sleeves 20 are thus lined up on the same type of reinforcing sleeve 26. According to the example of Figure 3, the reinforcing sleeves 20 also has a different length 10. Through this Measure may be the given cross-sectional geometry of the core structure 4, which in Figure 3 in the sketch on the left side represented by the dash-dotted line, if possible be completed comprehensively.
  • Figure 5 is also a juxtaposition of reinforcing sleeves 20, analogously to the example of Figure 4 shown. This is a simplified form, since the Reinforcement sleeves 20 have substantially the same length 10. As in the sketch on the left side of Figure 5 too recognize, the cross-sectional geometry of the reinforcing structure 4 not filled to the optimum extent as for example, by the embodiment in Figure 4 happens. For simple compressor wheels that load less heavily However, such a simpler, cheaper Be advantageous construction.
  • the materials used for making the reinforcing sleeves 8 or 20 are used, also the mechanical Stresses acting on the compressor wheel 2, customized. It has proved to be useful, the Reinforcing sleeves made of a fiber-reinforced material represent.
  • a possible example for producing a reinforcing sleeve 8 or 20 is a bobbin made of long fiber material or made of spun short fiber material.
  • the fibers are in a wax, resin or a polymer soaked.
  • the impregnated material hardens after winding the Winding body, resulting in so-called preforms of the reinforcing sleeves 8, 20 arise.
  • These preforms of reinforcing sleeves 8, 20 can be made into segments of the desired lengths 10 are cut, these segments after the here used diction already referred to as reinforcing sleeves 8, 20 can be.
  • These reinforcing sleeves 8, 20 can for example, by gluing, pressing, sewing, stacking or Hot melt adhesives are placed against each other or pushed over each other become.
  • organic material such as wax or polymer melted or the resin or the polymer or the wax is burnt out of the reinforcing sleeves 8, 20.
  • organic material such as wax or polymer melted or the resin or the polymer or the wax is burnt out of the reinforcing sleeves 8, 20.
  • the thus freed from organic binders reinforcing sleeves 8, 20 are placed in a mold and pouring with the molten metal, which also followed the Function section 6 forms, infiltrated.
  • the molten metal which also followed the Function section 6 forms, infiltrated.
  • the burnout and pouring the molten metal may optionally also be done simultaneously.
  • the core structure 4 In another variant of the manufacturing process of the core structure 4 are fiber-reinforced bobbins made with polymers or resins or waxes are infiltrated, analogous to previous example, to a core structure 4 assembled analogously to Figures 2 to 5, the organic Material wax, resin or polymer is removed and the core structure 4 is in a corresponding casting, for example a die casting process with a special metal infiltrated. The thus-infiltrated core structure 4 is subsequently in precision casting or another low-pressure casting process with the functional section 6 cast.
  • the already prefiltered nuclear structure 4 with a adhesion-promoting layer so that the liquid Metal that better when casting the functional section 6 adheres to the core structure 4 and thus a solid composite forms.
  • the filament winding body with liquid Metal it may be appropriate if necessary be to coat the fibers, so that on the one hand a reaction the infiltration metal with the fiber is avoided, and on the other hand, better wetting and better infiltration is guaranteed.
  • the reinforcement sleeves for example, from a wrought alloy, in particular one Made of aluminum wrought alloy. Also the application of metal matrix composites which may be made with short fibers are reinforced or the application of spray-compacted Metallic materials can be used for the reinforcement sleeves 8, 20 be expedient.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP04018089A 2003-09-05 2004-07-30 Roue de roulement à haute vitesse Withdrawn EP1512833A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10341415 2003-09-05
DE10341415A DE10341415A1 (de) 2003-09-05 2003-09-05 Hochgeschwindigkeitslaufrad

Publications (1)

Publication Number Publication Date
EP1512833A2 true EP1512833A2 (fr) 2005-03-09

Family

ID=34129698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04018089A Withdrawn EP1512833A2 (fr) 2003-09-05 2004-07-30 Roue de roulement à haute vitesse

Country Status (4)

Country Link
US (1) US20060008354A1 (fr)
EP (1) EP1512833A2 (fr)
JP (1) JP2005083382A (fr)
DE (1) DE10341415A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2366870A3 (fr) * 2010-03-16 2012-11-14 Bosch Mahle Turbo Systems GmbH & Co. KG Rotor d'un turbochargeur

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8118556B2 (en) 2007-01-31 2012-02-21 Caterpillar Inc. Compressor wheel for a turbocharger system
DE102009018801A1 (de) 2009-04-24 2009-11-05 Daimler Ag Turbolader-Anordnung
DE102012011662A1 (de) 2012-06-13 2012-12-13 Daimler Ag Turbinenrad für eine Turbine
DE102014004745A1 (de) 2014-04-01 2015-10-01 Daimler Ag Turbinenrad für eine Turbine, insbesondere eines Abgasturboladers
JP6210459B2 (ja) * 2014-11-25 2017-10-11 三菱重工業株式会社 インペラ、及び回転機械
JP1523931S (fr) * 2014-12-19 2015-05-18

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2894318A (en) * 1952-10-08 1959-07-14 Gen Electric Turbomachine bucket-wheel fabricated by casting
US2757901A (en) * 1953-02-24 1956-08-07 Kennametal Inc Composite turbine disc
US3778188A (en) * 1972-09-11 1973-12-11 Gen Motors Corp Cooled turbine rotor and its manufacture
DE4321173C2 (de) * 1993-06-25 1996-02-22 Inst Luft Kaeltetech Gem Gmbh Radiallaufrad
FR2738304B1 (fr) * 1995-08-30 1997-11-28 Europ Propulsion Turbine en materiau composite thermostructural, en particulier a grand diametre, et procede pour sa fabrication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2366870A3 (fr) * 2010-03-16 2012-11-14 Bosch Mahle Turbo Systems GmbH & Co. KG Rotor d'un turbochargeur

Also Published As

Publication number Publication date
JP2005083382A (ja) 2005-03-31
DE10341415A1 (de) 2005-04-07
US20060008354A1 (en) 2006-01-12

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