WO2018114020A1 - Dispositif de guidage destiné à un compresseur d'un dispositif de suralimentation et compresseur d'un dispositif de suralimentation - Google Patents

Dispositif de guidage destiné à un compresseur d'un dispositif de suralimentation et compresseur d'un dispositif de suralimentation Download PDF

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Publication number
WO2018114020A1
WO2018114020A1 PCT/EP2017/001118 EP2017001118W WO2018114020A1 WO 2018114020 A1 WO2018114020 A1 WO 2018114020A1 EP 2017001118 W EP2017001118 W EP 2017001118W WO 2018114020 A1 WO2018114020 A1 WO 2018114020A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide
compressor
sealing element
housing
guide element
Prior art date
Application number
PCT/EP2017/001118
Other languages
German (de)
English (en)
Inventor
Jens GREGORY
Original Assignee
Daimler 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 Daimler Ag filed Critical Daimler Ag
Publication of WO2018114020A1 publication Critical patent/WO2018114020A1/fr

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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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers
    • 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
    • F04D29/08—Sealings
    • F04D29/083—Sealings especially adapted for elastic fluid pumps
    • 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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the invention relates to a guide device for a compressor of a charging device, in particular for a motor vehicle, according to the preamble of claim 1 and a compressor for a charging device, in particular a motor vehicle, according to the preamble of claim 10.
  • Such a guide for a compressor of a charging device, in particular for a motor vehicle, and such a compressor for a charge on, in particular a motor vehicle, for example, are already the
  • the charging device is for example an exhaust gas turbocharger and / or comes at a
  • Internal combustion engine for use, by means of which, for example, as a motor vehicle, especially as a passenger car, trained motor vehicle is driven.
  • the guide device comprises at least one guide element, which a plurality of in the circumferential direction of the guide element successive or
  • the compressor in its fully manufactured state comprises a compressor wheel, by means of which the air can be compressed.
  • the diffuser is one of the means of
  • Compressor wheel compressed air permeable channel by means of which, for example, the compressed by means of the compressor impeller air is discharged from the compressor wheel.
  • the guide vanes are arranged in the channel or in the diffuser and are used to guide the compressed air, for example, as needed or to divert or distract.
  • the compressed air is For example, at least one, in particular designed as a cylinder combustion chamber of the internal combustion engine supplied to supply the internal combustion engine by means of the supercharger with compressed air.
  • DE 10 2015 006 457 A1 discloses a radial compressor, in particular for an exhaust gas turbocharger of an internal combustion engine, with at least one
  • Housing part through which a receiving space for a compressor of the
  • Radial compressor and a downstream of the receiving space arranged diffuser are each at least partially limited, and at least one in the diffuser
  • the housing part is formed integrally with the guide vane.
  • Object of the present invention is to develop a guide and a compressor of the type mentioned in such a way that a particularly efficient operation of the compressor can be realized.
  • At least one sealing element formed of a plastic is held on the guide element, by means of which the guide element is at least partially sealed against at least one housing element of the charging device, in particular of the compressor.
  • the guide element is arranged in the completely produced state of the charging device or of the compressor, in particular in the axial direction of the compressor, opposite said housing element. Furthermore, in the completely produced state, the guide element is arranged at least partially in the diffuser, so that in particular the guide vanes are arranged in the diffuser.
  • the air compressed by means of the compressor and flowing through the diffuser can be directed as required by means of the guide vanes and, in particular, deflected and / or deflected become. It usually happens, for example because of particular
  • Conductor is advantageously passed. This affects the efficiency and thus the efficiency of the compressor.
  • the sealing element formed from the plastic and preferably elastically deformable, it is possible to compensate or seal at least one resulting, for example, due to production-related tolerances and / or due to occurring during operation of the charger relative movements between the housing member and the guide element gap, so
  • This gap can be sealed, for example, by means of the sealing element, since the sealing element is at least partially disposed in the gap and in particular on the one hand supported on the guide element and on the other hand can be supported or supported on the housing element. Since preferably the sealing element is elastically deformable, the sealing element can miteinit size changes of the gap, that is, size reductions and size increases of the gap and thus, for example, in relative movements between the housing member and the Moving guide element with the guide element or with the housing element, so that excessive, unwanted leakage flows of the air can be safely avoided.
  • Sealing element is held on one of the guide vanes.
  • the sealing element is held on the guide vane, excessive leakage flows, in the framework of which the air bypasses the guide vane and is thus not guided by means of the vane, can be avoided, so that a particularly demand-oriented guidance of the air can be represented.
  • a further embodiment is characterized in that at least one sealing element formed from a plastic is held on each guide vane of the guide element, by means of which the respective guide vane against the at least one
  • the sealing element is held on an axial end face of the guide element, in particular the guide blade.
  • Embodiment is based on the recognition that in particular the axial sealing of the guide, that is, the sealing of the guide against the
  • the guide element in particular the guide blade, is supported in the axial direction of the compressor via the sealing element on the housing element.
  • the sealing element at least partially between the guide element and the Housing element arranged and supported on the housing and on the guide element and held in particular elastically deformed by means of the guide element and by means of the housing member, whereby a particularly advantageous sealing can be realized.
  • the sealing element is molded onto the guide element, in particular by means of an injection molding process.
  • Sealing element molded by means of an injection mold to the guide element for example, the, in particular already produced, guide element is inserted into the injection mold. Furthermore, for example, the plastic from which the sealing element is produced is provided, wherein the plastic is provided, for example, in the liquid state. For this purpose, for example, a starting material is melted, wherein the starting material may be powdery. The plastic is then in its liquid state by means of the injection mold to the
  • the guide element in particular to the guide vane, and thereby preferably molded onto the axial end face, whereby the guide element can be provided particularly time-consuming and cost-effective with the sealing element.
  • the axial end face extends, for example, in a plane which extends obliquely or preferably perpendicular to the axial direction of the compressor and thus the guide.
  • the sealing element preferably has a varying cross-section.
  • the sealing element tapers in the axial direction of the guide device and thus of the guide element and of the compressor.
  • the sealing element tapers towards one end of the sealing element, wherein the sealing element can be supported on the housing element via the end or the end itself
  • the sealing element can be particularly advantageous to the housing element, in particular to a corresponding sealing surface of the housing element, create or nestle, so that the guide element can be particularly well sealed against the housing element.
  • the sealing element engages in a corresponding recess of the guide.
  • at least a portion of the sealing element is arranged in said recess.
  • the sealing element can be particularly firmly connected to the guide element, so that a particularly good seal can be displayed.
  • the sealing element via the receptacle is positively connected to the guide element.
  • the sealing element is non-positively and / or positively and / or materially connected to the guide element and thus held on the guide element, in particular on the front side.
  • the sealing element is non-positively and / or positively and / or materially connected to the guide element and thus held on the guide element, in particular on the front side.
  • the sealing element is formed from an elastomer or from rubber.
  • the sealing element can deform particularly well, in particular elastically, and thus conform to the housing element or to the guide element.
  • the sealing element mitausstage example, thermally induced relative movements between the housing member and the guide, so that the
  • Guide element can be particularly well sealed against the housing element.
  • the sealing element and the guide element, in particular the guide vane are formed from different materials.
  • the guide element, in particular the guide vane is formed, for example, from a metallic material, wherein the guide element, in particular the guide vane, by casting, in particular by
  • the guide vanes are, for example, in the circumferential direction of the guide element
  • the guide vanes are connected to each other via a ring common to the vanes, so that, for example, the guide element can be easily handled and installed as a structural unit.
  • the vanes are integrally formed with each other.
  • the vanes are, for example, integral with the
  • the compressor according to the invention is, for example, a radial compressor, which in its completely produced state comprises, for example, a compressor wheel, in particular a radial compressor wheel.
  • a compressor wheel in particular a radial compressor wheel.
  • the diffuser is a channel through which the air compressed by means of the compressor wheel can flow, by means of which the compressed air is removed from the compressor wheel.
  • the diffuser has a flow cross-section, through which the compressed air can flow, which widens in the flow direction of the compressed air.
  • the charging device is preferably an exhaust gas turbocharger, by means of which at least one, for example, designed as a cylinder combustion chamber of the internal combustion engine, which is for example designed as a reciprocating engine, can be supplied with the compressed air.
  • the internal combustion engine is for example part of a motor vehicle, which can be designed as a motor vehicle, in particular as a passenger car, and can be driven by means of the internal combustion engine.
  • Fig. 1 is a schematic perspective view of a first embodiment of a
  • Guide device for a compressor having at least one guide element, which has a plurality of circumferentially of the guide successive guide vanes, which can be arranged in a compressed by means of the compressor compressed air diffuser of the compressor, wherein held on the guide element at least one sealing element formed from a plastic is, by means of which the guide element is at least partially sealed against at least one housing element of the charging device;
  • Fig. 2 is a schematic perspective view of a second embodiment of
  • FIG. 3 shows a detail of a schematic sectional view of the guide according to a third embodiment
  • FIG. 4 shows a detail of a schematic sectional view of the guide device according to a fourth embodiment.
  • FIG. 1 shows, in a schematic perspective view, a guide means, denoted as a whole by 10, for a compressor of a charging device.
  • the charging device is for example part of a drive train, which is a
  • the internal combustion engine is designed, for example, as a reciprocating piston engine and has at least one combustion chamber designed, for example, as a cylinder, which in a fired operation of the internal combustion engine is supplied with air and fuel, in particular liquid fuel, for operating the internal combustion engine. This creates a fuel-air mixture in the combustion chamber, which is ignited and thereby burned. This results in exhaust gas of the internal combustion engine.
  • the drive train is used in a motor vehicle, in particular in a motor vehicle such as a passenger car, so that the motor vehicle can be driven by means of the drive train, in particular by means of the internal combustion engine.
  • the charging device is, for example, an exhaust gas turbocharger, which comprises the compressor and a turbine drivable by the exhaust gas of the internal combustion engine, by means of which the compressor can be driven.
  • the compressor comprises a compressor wheel 12.
  • Compressor 12 for example, part of a rotor of the exhaust gas turbocharger, wherein the rotor, the compressor 12, a shaft and a drivable by the exhaust gas
  • Turbine wheel of the turbine includes.
  • the compressor 12 and the turbine are rotatably connected to the shaft, so that the compressor 12 can be driven via the shaft of the turbine wheel.
  • the air to be supplied to the combustion chamber is compressed by means of the compressor wheel 12 and thus by means of the compressor. Since the compressor wheel 12 is driven by the turbine wheel via the shaft and because the turbine wheel is driven by the exhaust gas, energy contained in the exhaust gas can be used to compress the air, so that a particularly efficient and thus fuel-efficient operation of the
  • the charging device comprises, for example, a first housing element 14, which is designed as a bearing housing in a first embodiment illustrated in FIG. 1.
  • the rotor is rotatably supported by the shaft on the bearing housing about an axis of rotation relative to the bearing housing.
  • the bearing housing limits, for example, a receiving space in which the compressor wheel 12 is at least partially, in particular at least predominantly or completely, taken up in the fully manufactured state of the charging device, at least partially.
  • the charging device further comprises a second, not shown in FIG.
  • Housing element which is for example a housing of the compressor and therefore also referred to as a compressor housing.
  • the compressor housing limits the said receiving space alternatively or additionally at least partially.
  • Bearing housing and the compressor housing for example, separately formed components that in the fully manufactured state of
  • Charging device are interconnected.
  • the compressor housing and the bearing housing in the axial direction of the charging device are arranged at least partially successive or successively, so for example the compressor housing of the guide 10 is opposite in the axial direction of the charging device or is arranged in the axial direction relative to the guide 10.
  • the compressor has at least one in Fig. 2 partially visible and by the means of the compressor, in particular by means of the compressor wheel 12, compressed air flow through the diffuser 16.
  • the diffuser 16 is a channel through which the compressed air can flow, by means of which the compressed air is discharged from the compressor wheel 12.
  • the compressor is designed as a radial compressor, so that the compressor wheel 12 is formed as Radialverêtrrad.
  • the air to be compressed flows into the compressor wheel 12 during operation of the compressor, at least substantially in the axial direction of the compressor, whereupon the air is compressed by means of the compressor wheel 12. Then flows through the means of
  • Compressor 12 compressed air, the compressor 12 at least substantially in the radial direction.
  • the axial direction of the compressor coincides with the axial direction of the guide 10 and the charging device altogether, wherein the axial direction of the aforementioned axis of rotation about which the rotor is rotatable relative to the bearing housing coincides.
  • the guide device 10 which is held, for example, on the bearing housing, comprises at least one guide element designated as a whole by 18, which has a plurality of directions in the circumferential direction of the guide element 18
  • FIG. 1 The circumferential direction of the guide element 18 and thus of the guide device 10 as a whole is illustrated in FIG. 1 by a double arrow 23.
  • the guide vanes 20 are arranged in the diffuser 16 through which the compressed air can flow, so that the compressed air flowing through the diffuser 16 can be directed as required by means of the guide vanes 20 and thus deflected and / or diverted, for example. This can be a particularly efficient and thus
  • the guide member 18 and the guide 10 is attached to the bearing housing, so that, for example, the
  • Compressor housing is a guide member 18 in the axial direction of the compressor opposite component.
  • Fig. 2 shows a second embodiment, in which the guide 10th
  • Compressor housing which forms the diffuser 16 at least partially, in particular at least predominantly or completely, is fixed.
  • the compressor housing 22 is thus a second housing element of the charging device.
  • the bearing housing housing member 14
  • the bearing housing is one of the guide 10, in particular the guide member 18, in the axial direction of the compressor opposite component.
  • the guide element 18 has a ring 24 common to the guide vanes 20, via which the guide vanes 20 are connected to one another.
  • the vanes 20 are integrally formed with the ring 24, so that the vanes 20 are integrally formed with each other.
  • the guide element 18 is integrally formed.
  • the vanes 20 and thus, for example, the ring 24 may be made of a first material, wherein the first material is for example a metallic material.
  • the respective component (compressor housing 22 or housing element 14) which is opposite the guide element 18 in the axial direction of the compressor is formed, for example, from a second material different from the first material.
  • Countermeasures are taken - at least one arranged in the axial direction of the compressor between the guide element 18 and the respective component gap between the guide element 18 and the respective component can arise.
  • Fig. 3 and 4 can be seen - held on the guide element 18 at least one sealing element 26 formed of a third material , by means of which the guide element 18 is at least partially sealed or sealed against the respective component of the charging device.
  • Fig. 3 shows a third embodiment, wherein Fig. 4 shows a fourth embodiment. From FIGS. 3 and 4 it can be seen that the sealing element 26 is held on one of the guide vanes 20. It is preferably provided that at least one of the said third material formed at each of the guide vanes 20
  • the third material is a plastic, in particular an elastomer or rubber, so that, for example, the third material is a different material from the first material and from the second material.
  • the sealing element 26 is arranged in the axial direction of the charging device at least partially between the guide element 18, in particular the respective guide blade 20, and the respective component and in particular supported on the guide element 18 or on the guide blade 20 and on the component, so that the guide element 8 is particularly well sealed against the component.
  • the end face 28 is formed by the respective guide vane 20, so that the sealing element 26 is held or arranged on the axial end face 28 of the guide vane 20.
  • the axial end face 28 extends in a plane which runs at least substantially perpendicular to the axial direction of the charging device and thus to the axis of rotation of the rotor.
  • the sealing element 26 is at least partially, in particular at least predominantly or completely, arranged in the axial direction between the end face 28 and the respective component and thereby on the end face 28 and on the
  • Component in particular on a corresponding sealing surface of the component, can be supported or supported, so that excessive leakage flows of the air, which can bypass the guide vanes 20 in the context of such leakage flows, can be avoided.
  • the sealing element 26 is by means of an injection molding process to the end face 28 and thus to the respective
  • the guide element 18 can be provided in a particularly timely and cost-effective manner with the respective sealing element 26, wherein can be produced by the injection molding a geometry of the sealing element 26 as needed and cost.
  • each of the guide vanes 20 is provided with a sealing element 26, then, for example, a plurality of sealing elements 26, at least partially, in particular at least predominantly or completely, are provided which are spaced apart from one another. It is conceivable that the sealing elements 26 are formed integrally with each other and thus connected to each other, for example via a respective plastic sheet.
  • the respective sealing element 26 functions as a sealing edge, in particular as an elastomer sealing edge, in order to be able to seal the guide element 18 particularly well against the respective component.
  • the sealing element 26 is elastically deformed by means of the guide element 18 and by means of the component, so that the sealing element 26 fits particularly well to the guide element 18 and the component. Since the respective sealing element 26 is elastically deformable, it can also carry out, for example, the above-described relative movements between the guide element 18 and the component, so that the sealing element 26 arranged, for example, in the aforementioned gap between the guide element 18 and the component
  • Size changes of the gap moved Such size changes of the gap occur, for example, due to the above-described, in particular thermally induced relative movements between the guide element 18 and the component.
  • the sealing element 26 is thus always in support system with the guide element 18 and with the component, so that an advantageous seal can be ensured.
  • the sealing element 26 is sprayed exactly in thickness onto the guide element 18, in particular the guide blade 20, which corresponds to the maximum tolerance. This can cause excessive, unwanted
  • Leakage currents and the resulting loss of efficiency can be avoided or at least minimized.
  • the sealing element 26 can be seen in a cross-sectional view. It can be seen that the sealing element 26 has a varying cross section, wherein the sealing element in the axial direction of the guide 10, in particular to the respective component, tapers. In this case, the sealing element 26 tapers at least starting from the end face 28 toward an end 30, for example, of the sealing element 26, wherein the sealing element 26 abuts the component, in particular a corresponding sealing surface of the component, in the completely produced state of the charging device and is thus supported , As a result, a defined and secure seal can be ensured.
  • the guide vane 20 has a recess 32 formed, for example, as a groove, into which the
  • Seal member 26 engages. Thus, a first portion 34 of the sealing member 26 is disposed in the recess 32, wherein the sealing member 26 from the
  • Recess 32 protrudes, so that an integrally formed with the first portion 34 second portion 36 of the sealing member 26 is disposed outside the groove 32.
  • Sealing element 26 engages in the recess 32, a particularly large, respective surface of the sealing element 26 and the guide vane 20 can be ensured, wherein the sealing element 26 can be held on the guide vane 20 particularly firmly on the large surfaces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un dispositif de guidage (10) destiné à un compresseur d'un dispositif de suralimentation, en particulier à un turbocompresseur à gaz d'échappement, d'un moteur à combustion interne, comprenant au moins un élément de guidage (18) qui présente une pluralité d'aubes de guidage (20) qui se suivent dans le sens de la circonférence (23) de l'élément de guidage (18) et peuvent être agencées dans un diffuseur (16) du compresseur pouvant être traversé par l'air comprimé par le compresseur. Sur l'élément de guidage (18) est fixé au moins un élément d'étanchéité (26) formé d'une matière plastique et permettant de rendre l'élément de guidage (18) au moins partiellement étanche par rapport à au moins un élément de carter (14, 22).
PCT/EP2017/001118 2016-12-22 2017-09-20 Dispositif de guidage destiné à un compresseur d'un dispositif de suralimentation et compresseur d'un dispositif de suralimentation WO2018114020A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016015359.8 2016-12-22
DE102016015359.8A DE102016015359A1 (de) 2016-12-22 2016-12-22 Leiteinrichtung für einen Verdichter einer Aufladeeinrichtung, sowie Verdichter für eine Aufladeeinrichtung

Publications (1)

Publication Number Publication Date
WO2018114020A1 true WO2018114020A1 (fr) 2018-06-28

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ID=59923378

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/001118 WO2018114020A1 (fr) 2016-12-22 2017-09-20 Dispositif de guidage destiné à un compresseur d'un dispositif de suralimentation et compresseur d'un dispositif de suralimentation

Country Status (2)

Country Link
DE (1) DE102016015359A1 (fr)
WO (1) WO2018114020A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021105624A1 (de) * 2021-03-09 2022-09-15 KSB SE & Co. KGaA Herstellung eines Leitrades auf hybride Weise
DE102021105623A1 (de) * 2021-03-09 2022-09-15 KSB SE & Co. KGaA Herstellung eines Stufengehäuses in einem Hybridverfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5161943A (en) * 1991-03-11 1992-11-10 Dresser-Rand Company, A General Partnership Swirl control labyrinth seal
WO2003027445A1 (fr) * 2001-09-25 2003-04-03 Alstom Technology Ltd Systeme de joint destine a reduire un espace d'etancheite dans une turbomachine rotative
DE102015006457A1 (de) 2015-05-20 2015-12-03 Daimler Ag Radialverdichter, insbesondere für einen Abgasturbolader einer Verbrennungskraftmaschine
DE102015012225A1 (de) 2015-09-18 2016-04-14 Daimler Ag Leiteinrichtung für einen Verdichter eines Abgasturboladers
DE102016002735A1 (de) * 2015-03-09 2016-09-15 Caterpillar Inc. (n.d.Ges.d. Staates Delaware) Verdichteraufbau mit dynamischer Diffusorringsicherung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5161943A (en) * 1991-03-11 1992-11-10 Dresser-Rand Company, A General Partnership Swirl control labyrinth seal
WO2003027445A1 (fr) * 2001-09-25 2003-04-03 Alstom Technology Ltd Systeme de joint destine a reduire un espace d'etancheite dans une turbomachine rotative
DE102016002735A1 (de) * 2015-03-09 2016-09-15 Caterpillar Inc. (n.d.Ges.d. Staates Delaware) Verdichteraufbau mit dynamischer Diffusorringsicherung
DE102015006457A1 (de) 2015-05-20 2015-12-03 Daimler Ag Radialverdichter, insbesondere für einen Abgasturbolader einer Verbrennungskraftmaschine
DE102015012225A1 (de) 2015-09-18 2016-04-14 Daimler Ag Leiteinrichtung für einen Verdichter eines Abgasturboladers

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