EP0737814A1 - Compresseur - Google Patents

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Publication number
EP0737814A1
EP0737814A1 EP96810177A EP96810177A EP0737814A1 EP 0737814 A1 EP0737814 A1 EP 0737814A1 EP 96810177 A EP96810177 A EP 96810177A EP 96810177 A EP96810177 A EP 96810177A EP 0737814 A1 EP0737814 A1 EP 0737814A1
Authority
EP
European Patent Office
Prior art keywords
hub
blades
compressor
compressor according
reinforced
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
EP96810177A
Other languages
German (de)
English (en)
Other versions
EP0737814B1 (fr
Inventor
Urs Bodmer
Patrick Hain
Vishal Dr. Mallick
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.)
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
Original Assignee
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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 ABB Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Publication of EP0737814A1 publication Critical patent/EP0737814A1/fr
Application granted granted Critical
Publication of EP0737814B1 publication Critical patent/EP0737814B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • 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
    • 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
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
    • 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
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/603—Composites; e.g. fibre-reinforced

Definitions

  • the invention is based on a compressor for gaseous fluids according to the preamble of claim 1.
  • a compressor is known from the document EP 0 593 797 A1, which is provided for the compression of a gaseous medium.
  • the compressor has a compressor wheel with molded rotor blades which are provided with a casing on the side on which the gaseous medium enters.
  • the shroud is connected to the ends of all the blades.
  • the casing does not extend over the entire length of the blades. In the area in which the rotor blades are subjected to the highest mechanical stress, no casing is provided which could prevent the same from vibrating or at least dampen it somewhat.
  • a compressor wheel for a compressor which is made of a metal, the blades of which are integrally formed on the hub of the compressor wheel.
  • Such a compressor wheel is usually machined from the solid with the help of complex machining processes.
  • This The compressor wheel has a comparatively large mass, for the drive of which a comparatively large amount of energy has to be expended.
  • Compressors are also known which have compressor wheels molded in one piece from plastic. Some of these compressor wheels are provided with fiber reinforcement, but the manufacturing processes used to date only allow reinforcement with so-called short fibers. Compressor wheels designed in this way can only be used for peripheral speeds up to a maximum of 400 m / sec and for operating temperatures up to a maximum of 200 ° C, since the reinforcement with short fibers does not allow higher loads.
  • the invention solves the problem of creating a compressor which has a compressor wheel made of a plastic and which is nevertheless suitable for comparatively high operating temperatures.
  • the compressor wheel has a lower mass and it is comparatively easy to assemble from different individual parts.
  • the A pre-made, carbon fiber reinforced thermoplastic tape is used. With this thermoplastic tape, the orientation of the continuous fibers reinforcing it is always optimally guaranteed, so that a comparatively good strength of the hub is ensured even at these comparatively high operating temperatures and peripheral speeds. Thanks to the comparatively low mass of the compressor wheel, it also has a small moment of inertia, so that the compressor reaches the required operating speed in an advantageously short time when starting and is therefore fully effective very quickly.
  • the compressor wheel 1 shows a schematically illustrated partial section through a compressor wheel 1, which is provided for the compression of a gaseous fluid.
  • the compressor wheel 1 has a hub 2 which is made of a plastic, preferably of a thermoplastic material reinforced with continuous fibers.
  • the hub 2 is fastened on a sleeve 3 made of metal, and is secured against rotation and against axial slipping.
  • the hub 2 and the sleeve 3 have a common axis 4, which represents the axis of rotation of the compressor wheel 1.
  • the sleeve 3 has a central bore which is provided for receiving and fastening the shaft of the compressor wheel 1, not shown.
  • rotor blades 5 are fastened. Between the blades 5 and the compressor housing 1, not shown, including the compressor wheel 1, there are flow channels (not designated) into which the gaseous medium flows and in which it is accelerated in a known manner and thereby compressed.
  • the hub 2 was wound from a prefabricated plastic tape reinforced with continuous fibers.
  • plastic tape reinforced with continuous fibers.
  • particularly temperature-resistant thermoplastics are suitable as plastic, and carbon fibers are used for the reinforcement.
  • the hub 2 was wound on a gauge corresponding to the inner contour of the hub 2 in such a way that the carbon fibers are arranged in the circumferential direction, which results in a particularly high strength of the hub 2 in this direction, as a result of which comparatively high speeds of the compressor wheel 1 and thus comparatively large Efficiency of the compressor become possible.
  • the thermoplastic material of the tape was briefly heated and fused to the previously applied layer of the tape.
  • a laser is particularly suitable for this targeted and dosed short-term heating.
  • Such thermoplastic winding processes using lasers as an energy source are known. After the winding process was completed, the hub 2 thus prefabricated was removed from the gauge and definitely finished.
  • the opening for receiving the sleeve 3 had to be reworked and, in addition, the outer surface of the hub 2 had to be smoothed in order to be able to use it as a support and adhesive surface for fastening the prefabricated rotor blades 5.
  • the blades 5 each have an aerodynamically designed inlet edge 6, which lies on the inlet side of the gaseous medium in the flow channel of the compressor. On the other side of the flow channel, based on the flow of the gaseous medium downstream, is the exit edge 7 of the rotor blades 5.
  • the rotor blades 5 are assembled from several prefabricated parts, also reinforced with continuous fibers, as schematically shown in FIGS. 4 and 5 is shown. These figures are discussed below.
  • the blades 5 each have a base plate 8 as the base.
  • the side of the foot plate 8 facing the surface 9 of the hub 2 is adapted to this surface 9 so precisely that this foot plate 8 lies positively on the surface 9.
  • the surface 9 has a shoulder 10 on the inlet side of the compressor wheel 1, on which the inlet-side end piece 11 of the base plate 8 also rests in a form-fitting manner.
  • the rotor blades 5 are designed to be aerodynamically known in a known manner; the corresponding spherical curvature of the airfoil is not shown in the drawing for the sake of clarity.
  • the base of the rotor blades 5 forms the preformed, uniformly thick base plate 8.
  • the base plate 8 is provided with a bead 26 which projects into the interior of the rotor blade 5 and which extends in the direction of the longitudinal axis of the rotor blade 5, with it becoming less pronounced downstream is.
  • the base plate 8 has an underside 27 which is completely aligned with the surface 9 of the hub 2.
  • the depression occurring in the underside 27 as a result of the bulge 26 is filled up by means of an epoxy resin filling 28 in such a way that in this area of the base plate 8 there is also a surface which is completely aligned with the surface 9 of the hub 2.
  • the bead 26 is provided with evenly rounded flanks.
  • the airfoil is formed by two side walls 29 and 30.
  • the side walls 29 and 30 are made of uniformly thick plastic plates reinforced with continuous fibers, they enclose a cavity 31 that becomes narrower in the radial direction. This cavity 31 can be foamed in order to achieve better vibration damping.
  • the cavity 31 is closed in the area of the leading edge 6 of the rotor blade 5 by means of a cover, not shown, which is designed to be aerodynamic.
  • the side walls 29 and 30 are preformed. They are glued or welded to the base plate 8 in an assembly template. At the same time, the side walls 29 and 30 glued or welded together in the area of the tip of the blades 5.
  • the side walls 29 and 30 are designed in such a way that they each have a foot part 32a, 32b which fits the surface of the footplate 8 in a form-fitting manner and which has a radius 33 which merges with the approximately radially extending part of the respective side wall.
  • the foot part 32a is assigned to the side wall 29 and the foot part 32b to the side wall 30. End pieces are formed on the upstream side of the foot parts 32a and 32b, which fit the end piece 11 of the foot plate 8 and rest positively on the surface of the foot plate 8.
  • the radius 33 is precisely adapted to the radius of the flank of the bead 26.
  • FIG. 5 shows a partial section through a second embodiment of a rotor blade 5 of a compressor wheel 1.
  • This embodiment differs from the embodiment according to FIG. 4 in that the approximately radially extending part of the side walls 29 and 30 is somewhat bulged.
  • This design ensures that the stresses between the base parts 32a and 32b of the side walls 29 and 30 and the base plate 8 are significantly reduced when the rotor blades 5 are mechanically loaded, the rotor blades 5 thus formed are therefore particularly resistant to high centrifugal forces.
  • a compressor wheel 1 equipped with rotor blades 5 designed in this way is suitable for particularly high peripheral speeds.
  • the hub 2 On the outlet side, the hub 2 has a collar 12, against which the outlet-side end 13 of the rotor blade 5 abuts.
  • the end 13 is formed from the footplate 8 covered with the foot parts 32a and 32b.
  • the collar 12 is on this point is the same width as the thickness of this outlet-side end 13 of the rotor blade 5, so that no protruding edge interferes with the flow of the compressed medium flowing out of the compressor wheel 1.
  • the underside of the base plate 8 is glued or welded to the surface 9 of the hub 2.
  • the base plates 8 are covered with the base parts 32a and 32b in such a way that the entire surface 9 is covered in the finished compressor wheel 1.
  • a bandage 14 is additionally attached to the entry side after the adhesive has been bonded and after the adhesive has hardened, so that the end piece 11 of each footplate 8 together with the end pieces of the foot parts 32a and 32b against the shoulder 10 of the hub 2 is pressed.
  • the bandage 14 is wound from a prefabricated plastic band reinforced with continuous fibers.
  • particularly temperature-resistant thermoplastics reinforced with carbon fibers are suitable as plastics.
  • the bandage 14 was wound in such a way that the carbon fibers lie in the circumferential direction, which results in a particularly high strength of the bandage 14 in this direction, as a result of which the base plates 8 and the base parts 32a and 32b are held securely even at comparatively high speeds of the compressor wheel 1 .
  • the thermoplastic material of the tape is briefly heated and fused to the previously applied layer of the tape.
  • the bandage 14 is accordingly manufactured using the same method as the hub 2. After the winding, the surface 15 of the bandage 14 is reworked in order to achieve a streamlined shape of the bandage 14.
  • the moving blades 5 are held by the gluing or welding, the bandage 14 and the collar 12. Up to comparatively high speeds of the compressor wheel 1, this fastening is sufficient. However, even higher speeds required, the blades 5 are additionally riveted to the hub 2 by means of metal rivets, namely the base parts 32a and 32b are riveted together with the base plates 8 to the hub 2. When riveting, care is taken that the rivet heads do not disturb the flow of the medium in the flow channels, since this would result in a loss of efficiency.
  • FIG. 2 shows a schematically represented partial section through the compressor wheel according to FIG. 1, specifically showing section A-A.
  • the blades 5, which are assembled from several components, have bevels 16a, 16b in the edge region where they touch the adjacent blades 5, which allow the edges of the blades 5 to be pushed over one another and to be glued effectively, as a result of which a closed surface 17 of the axis 4 facing side of the flow channel 18 is reached.
  • the dashed line 19 indicates the compressor housing, which closes the flow channel 18, which is laterally delimited by the rotor blades 5, to the outside.
  • FIG. 3 shows a partial section through a second embodiment of a compressor wheel.
  • This embodiment differs from that according to FIG. 1 in that in the space between two rotor blades 5 there is in each case a further rotor blade 20 which has an inlet edge 21 which is arranged downstream of the inlet edge 6 of the rotor blades 5. Each flow channel is divided downstream into two flow channels by the blade 20.
  • the rotor blade 20 has an outlet edge which is arranged in the same plane as the outlet edge 7 of the rotor blades 5.
  • the blades 20 are designed in accordance with the blades 5.
  • the blades 20 are also provided with a base plate to which the corresponding base parts have been applied.
  • the connected foot parts fit precisely into recesses in the foot parts 32 a and 32 b of the rotor blades 5, the rotor blades 20 each being positively pushed under the rotor blades 5.
  • the blades 5 hold the blades 20 in addition to their gluing or welding by means of dovetail teeth.
  • the rotor blades 20 are accordingly fastened to the hub 2 in a manner similar to the rotor blades 5.
  • the end piece 22 lies positively on a shoulder 23 of the hub 2.
  • a bandage 24 is attached in addition to the bandage 14 such that the end pieces 22 of each of the blades 5 and each the blades 20 together with the end pieces of the respective foot parts are pressed against the shoulder 23 of the hub 2.
  • the bandage 24, like the bandage 14, is wound from a prefabricated plastic band reinforced with continuous fibers and welded accordingly. The surface of the bandage 24 is then also designed to be streamlined.
  • the compressor wheel 1 according to FIG. 3 also has a balancing ring 25 which was inserted into the hub 2 during winding.
  • the balancing ring 25 is made of metal.
  • material is removed from this balancing ring in order to eliminate existing imbalances. It is also possible to design the sleeve 3 with a larger mass and to carry out the necessary material removal on it, so that the balancing ring 25 can be saved.
  • an adhesive based on a phenolic resin is provided, here the adhesive HT 424 the American Cyanamid Company, 1300 Revolution Street, Havre de Grace, MD 21087, has proven particularly suitable. Furthermore, the adhesive based on a modified condensation polyimide from the same manufacturer with the designation FM 36 is also well suited for the joining described here. In addition to gluing, a welding process using a laser or a combination of both methods is also conceivable for connecting the parts of the rotor blades 5. The blades 20 are assembled in the same way.
  • the band for the production of the hub 2 and the bandages 14 and 24 has a matrix made of a thermoplastic.
  • polyphenylene sulfide has proven itself as a thermoplastic, and good results have also been achieved with polyether ether ketone.
  • the polyphenylene sulfide matrix was reinforced with a carbon fiber volume content of about 53%.
  • the cross section of this tape was 5mm x 0.158mm.
  • the elastic modulus of the tape was found to be 114 GPa.
  • the operating temperature in this case was around 220 ° C.
  • the matrix made of polyether ether ketone was reinforced with a volume content of carbon fibers of 61%.
  • the cross section of this tape was 5mm x 0.125mm.
  • the elastic modulus of the tape was 134,000 MPa.
  • the operating temperature in this case was around 280 ° C.
  • thermoplastic plastic is used as the material for the production of the components of the rotor blades 5, 20, which is reinforced with carbon fibers designed as continuous fibers. This material is in shape delivered from uniformly thick panels. A matrix of polyether ether ketone with a volume content of carbon fibers of 61% has proven to be particularly suitable. These plates are inserted into molds and are brought into their final shape under thermal stress using one of the known methods, taking care that the continuous fibers are oriented in the direction of the main dynamic stress on the rotor blades 5, 20. The components prefabricated in this way, the side walls 29 and 30 and the base plate 8, of the moving blades 5, 20 are then, as already described, assembled in an assembly template to the finished moving blade 5 or 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP96810177A 1995-04-10 1996-03-20 Compresseur Expired - Lifetime EP0737814B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19513508A DE19513508A1 (de) 1995-04-10 1995-04-10 Verdichter
DE19513508 1995-04-10

Publications (2)

Publication Number Publication Date
EP0737814A1 true EP0737814A1 (fr) 1996-10-16
EP0737814B1 EP0737814B1 (fr) 2000-03-01

Family

ID=7759344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810177A Expired - Lifetime EP0737814B1 (fr) 1995-04-10 1996-03-20 Compresseur

Country Status (8)

Country Link
US (1) US5632601A (fr)
EP (1) EP0737814B1 (fr)
JP (1) JPH08296590A (fr)
KR (1) KR960038140A (fr)
CN (1) CN1136142A (fr)
CZ (1) CZ95896A3 (fr)
DE (2) DE19513508A1 (fr)
PL (1) PL313679A1 (fr)

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EP0942174A1 (fr) * 1998-03-11 1999-09-15 ABB Solyvent Ventec Roue de ventilation centrifuge en matériaux composites
WO2004016952A1 (fr) * 2002-07-26 2004-02-26 Robert Bosch Gmbh Roue de compresseur
WO2004046559A1 (fr) * 2002-11-15 2004-06-03 Daimlerchrysler Ag Roue de roulement
DE202011052411U1 (de) * 2011-12-21 2013-03-22 Ebm-Papst Mulfingen Gmbh & Co. Kg Schaufelrad für Axialventilatoren oder Radial- und Diagonallüfter
WO2019028305A1 (fr) * 2017-08-04 2019-02-07 Borgwarner Inc. Roue de compresseur polymère avec manchon métallique

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DE19723845A1 (de) * 1997-06-06 1998-12-10 Abb Research Ltd Verfahren zur Herstellung von Schaufeln aus polymerem Verbundmaterial
US6224339B1 (en) 1998-07-08 2001-05-01 Allison Advanced Development Company High temperature airfoil
DE19912715A1 (de) * 1999-03-20 2000-09-21 Abb Research Ltd Verdichterrad
EP1633985A1 (fr) * 2003-01-17 2006-03-15 Robert Bosch Gmbh Turbine d'une turbomachine
EP1627726A1 (fr) * 2004-08-18 2006-02-22 ABB Turbo Systems AG Compresseur renforcé par des fibres
WO2007013892A2 (fr) * 2004-11-12 2007-02-01 Board Of Trustees Of Michigan State University Rotor tisse de turbomachine
WO2008050915A1 (fr) * 2006-10-24 2008-05-02 Lg Electronics Inc. Rotor à grande vitesse
US8182213B2 (en) * 2009-04-22 2012-05-22 Pratt & Whitney Canada Corp. Vane assembly with removable vanes
IT1394295B1 (it) 2009-05-08 2012-06-06 Nuovo Pignone Spa Girante centrifuga del tipo chiuso per turbomacchine, componente per tale girante, turbomacchina provvista di tale girante e metodo di realizzazione di tale girante
IT1397058B1 (it) 2009-11-23 2012-12-28 Nuovo Pignone Spa Stampo per girante centrifuga, inserti per stampo e metodo per costruire una girante centrifuga
IT1397057B1 (it) 2009-11-23 2012-12-28 Nuovo Pignone Spa Girante centrifuga e turbomacchina
US8794914B2 (en) 2010-11-23 2014-08-05 GM Global Technology Operations LLC Composite centrifugal compressor wheel
ITCO20110064A1 (it) 2011-12-14 2013-06-15 Nuovo Pignone Spa Macchina rotante comprendente un rotore con una girante composita ed un albero metallico
US9797257B2 (en) 2012-12-10 2017-10-24 General Electric Company Attachment of composite article
US9777579B2 (en) 2012-12-10 2017-10-03 General Electric Company Attachment of composite article
RU2522152C1 (ru) * 2013-03-21 2014-07-10 Открытое акционерное общество Научно-производственное объединение "Искра" Ротор центробежного компрессора
JP6131085B2 (ja) 2013-04-01 2017-05-17 株式会社神戸製鋼所 回転機械、回転機械に用いられる羽根車、及び、羽根車の製造方法
US20140322019A1 (en) * 2013-04-30 2014-10-30 Dresser Inc. Rotary element and compressor device comprised thereof
ITCO20130067A1 (it) 2013-12-17 2015-06-18 Nuovo Pignone Srl Girante con elementi di protezione e compressore centrifugo
AU2015256412B2 (en) 2014-05-05 2018-10-25 Horton, Inc. Composite fan
JP6309884B2 (ja) 2014-11-25 2018-04-11 三菱重工業株式会社 インペラ、及び回転機械
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
DE102016108762A1 (de) * 2016-05-12 2017-11-16 Man Diesel & Turbo Se Radialverdichter

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US3521973A (en) * 1968-08-16 1970-07-28 Anpol Research Corp Fan construction
GB1341578A (en) * 1972-08-20 1973-12-25 British Leyland Truck & Bus Rotary compressors
EP0115451A2 (fr) * 1983-01-26 1984-08-08 Arap - Applications Rationnelles De La Physique S.A.R.L. Roue pour compresseur centrifuge et procédé pour sa fabrication
FR2631083A1 (fr) * 1988-05-03 1989-11-10 Plastiremo Roue composite pour compresseur centrifuge et procede pour sa fabrication
EP0348674A1 (fr) * 1988-06-29 1990-01-03 Asea Brown Boveri Ag Dispositif pour l'extension de la tolérance de pompage d'un compresseur radial
US5145320A (en) * 1990-08-28 1992-09-08 The United States Of America As Represented By The Secretary Of The Navy Mass loaded composite rotor for vibro-acoustic application
DE4139293A1 (de) * 1991-11-29 1993-06-03 Inst Verbundwerkstoffe Gmbh Faserkunststoffverbund-laufrad fuer eine radialstroemungsmaschine
EP0593797A1 (fr) * 1992-10-17 1994-04-27 Asea Brown Boveri Ag Dispositif de stabilisation pour l'extension de la tolérance de pompage d'un compresseur
DE4409629A1 (de) * 1993-03-25 1994-09-29 Ozen Sa Pumpenrotor und Verfahren zu dessen Herstellung
DE4321173A1 (de) * 1993-06-25 1995-01-12 Inst Luft & Kaeltetechnik Ggmbh Kältemittel-Turboverdichter

Cited By (9)

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Publication number Priority date Publication date Assignee Title
EP0942174A1 (fr) * 1998-03-11 1999-09-15 ABB Solyvent Ventec Roue de ventilation centrifuge en matériaux composites
WO1999046511A1 (fr) * 1998-03-11 1999-09-16 Abb Solyvent-Ventec Roue de ventilation centrifuge en materiaux composites
FR2776030A1 (fr) * 1998-03-11 1999-09-17 Abb Solyvent Ventec Roue de ventilation centrifuge en materiaux composites
WO2004016952A1 (fr) * 2002-07-26 2004-02-26 Robert Bosch Gmbh Roue de compresseur
WO2004046559A1 (fr) * 2002-11-15 2004-06-03 Daimlerchrysler Ag Roue de roulement
DE202011052411U1 (de) * 2011-12-21 2013-03-22 Ebm-Papst Mulfingen Gmbh & Co. Kg Schaufelrad für Axialventilatoren oder Radial- und Diagonallüfter
WO2019028305A1 (fr) * 2017-08-04 2019-02-07 Borgwarner Inc. Roue de compresseur polymère avec manchon métallique
US10393134B2 (en) 2017-08-04 2019-08-27 Borgwarner Inc. Polymeric compressor wheel with metal sleeve
WO2019028304A3 (fr) * 2017-08-04 2020-02-13 Borgwarner Inc. Roue de compresseur polymère avec manchon métallique

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Publication number Publication date
KR960038140A (ko) 1996-11-21
JPH08296590A (ja) 1996-11-12
PL313679A1 (en) 1996-10-14
DE19513508A1 (de) 1996-10-17
DE59604509D1 (de) 2000-04-06
US5632601A (en) 1997-05-27
EP0737814B1 (fr) 2000-03-01
CN1136142A (zh) 1996-11-20
CZ95896A3 (en) 1996-10-16

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