DE102005019896A1 - Spin production device for compressor wheels of turbocharger, has flexible guide vanes with fixed area connected with support section and adjustable/deformable area connected with circular adjusting section - Google Patents

Spin production device for compressor wheels of turbocharger, has flexible guide vanes with fixed area connected with support section and adjustable/deformable area connected with circular adjusting section Download PDF

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Publication number
DE102005019896A1
DE102005019896A1 DE102005019896A DE102005019896A DE102005019896A1 DE 102005019896 A1 DE102005019896 A1 DE 102005019896A1 DE 102005019896 A DE102005019896 A DE 102005019896A DE 102005019896 A DE102005019896 A DE 102005019896A DE 102005019896 A1 DE102005019896 A1 DE 102005019896A1
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Prior art keywords
adjustable
guide vanes
section
area connected
deformable
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DE102005019896A
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German (de)
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DE102005019896B4 (en
Inventor
Rudolf Wimmer
Leopold Eisterlehner
Peter Dr. Nefischer
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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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
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0246—Surge control by varying geometry within the pumps, e.g. by adjusting vanes
    • 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
    • F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/06—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding lubricant vapours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/06—Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
    • 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
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • 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
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable 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
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
    • F05B2240/311—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape flexible or elastic
    • 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
    • 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
    • F05D2250/51—Inlet
    • 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
    • F05D2260/00—Function
    • F05D2260/50—Kinematic linkage, i.e. transmission of position
    • F05D2260/53—Kinematic linkage, i.e. transmission of position using gears
    • 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
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/501—Elasticity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Supercharger (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The device has flexible guide vanes (104) including a fixed area and an adjustable and/or deformable area, where the fixed area is connected with a support section (106). The adjustable and/or deformable area of the guide vanes is connected with a circular adjusting section (108). The support section is fixedly arranged in a compressor housing and is adjustable opposite to the adjusting section. The adjusting section includes a toothing (110) for connection with a drive (114), which is controllable by a control device.

Description

Die Erfindung betrifft eine Drallerzeugungseinrichtung zur drallbeaufschlagten Anströmung eines Verdichterlaufrads, insbesondere eines Turboladers für eine Brennkraftmaschine, mit jeweils einen festen und einen verstell- und/oder verformbaren Bereich aufweisenden elastischen Leitschaufeln.The The invention relates to a swirl generating device for spin-loaded inflow a compressor impeller, in particular a turbocharger for an internal combustion engine, each with a fixed and an adjustable and / or deformable Area having elastic vanes.

In Hinblick auf eine Leistungssteigerung und/oder zur Verbesserung des Wirkungsgrades sowie auch der Abgasqualität ist es bekannt, Brennkraftmaschinen mit verdichteter Luft zu beaufschlagen; in diesem Zusammenhang haben sich beispielsweise abgasgetriebene Turbolader bewährt.In With regard to an increase in performance and / or improvement the efficiency and the exhaust gas quality, it is known internal combustion engines to apply compressed air; in this context For example, proven exhaust gas turbocharger.

Der Betrieb derartiger Verdichter erfolgt aufgrund der besseren Dynamikeigenschaften häufig nahe der Pumpgrenze im Verdichterkennfeld, was allerdings akustische Nachteile in Form sehr störender Zischgeräusche bedingt, gegebenenfalls führt die Instabilität bei länger andauerndem Betrieb in diesem Bereich sogar zu Schäden am Verdichterlaufrad. Ferner ist der Betrieb im Bereich der Pumpgrenze in besonderem Maße verlustbehaftet, so dass sich ein sehr schlechter Wirkungsgrad ergibt. Auch im Zusammenhang mit (Kreisel-)Pumpen im Allgemeinen stellen sich die beschriebenen Probleme.Of the Operation of such compressor is due to the better dynamic characteristics often close the surge line in the compressor map, but what acoustic Disadvantages in the form of very disturbing hissing noises, possibly leads the instability at longer prolonged operation in this area even damage to the compressor impeller. Furthermore, the operation in the area of the surge line is particularly lossy, so that results in a very poor efficiency. Also related with (centrifugal) pumps in general, the described Problems.

Eine Möglichkeit zur Abhilfe besteht bei Abgasturboladern im geregelten Betrieb, wobei zwischen turbinen- und verdichterseitiger Regelung unterschieden wird. Im Rahmen einer verdichterseitigen Regelung können dem Verdichterlaufrad vorgeordnete Luftleitgitter zur Anwendung kommen.A possibility to remedy exhaust gas turbochargers in controlled operation, where a distinction between turbine and compressor side control becomes. In the context of a compressor-side control, the Compressor impeller upstream air grids are used.

Beispielsweise beeinflusst ein verdichtereingangsseitig angeordneter Drallerzeuger am Verdichtereintritt die Strömungsrichtung der Luft derart, dass es im kritischen Kennfeldbereich zu einer Reduktion der Eintrittsstoßverluste am Schaufelrad kommt. Es wird somit eine vorteilhafte Verschiebung der Pumpgrenze in Richtung kleinerer Massenströme erreicht.For example affects a compressor input side arranged swirl generator at the compressor inlet, the flow direction the air such that it in the critical map area to a Reduction of the entry shock losses comes at the paddle wheel. It will thus be an advantageous shift reached the surge limit in the direction of smaller mass flows.

Als besonders günstig hat sich eine wie mit der EP 1 416 123 A2 offenbarte Drallerzeugungseinrichtung zur drallbeaufschlagten Anströmung eines Laufrads eines Verdichters oder einer Pumpe erwiesen, welche einen in das Gehäuse und/oder in die Saugleitung einbringbaren, dem Laufrad vorgeordneten Drallerzeuger aus Kunststoff mit elastisch verformbaren Leitschaufeln aufweist und die in vollem Umfang mit allen Merkmalen zum Offenbarungsgehalt der vorliegenden Anmeldung gehört. Ferner wird zum technologischen Hintergrund auf die DE 2 060 271 A1 verwiesen, welche ein Verfahren zur selbsttätigen Einstellung des Eintrittsdralles bei Verdichtern von Abgasturboladern sowie einen Leitapparat dazu beschreibt.As a particularly favorable has a like with the EP 1 416 123 A2 disclosed swirl generating device for swirling flow of an impeller of a compressor or a pump proved, which has an insertable into the housing and / or in the suction, the impeller upstream swirl generator made of plastic with elastically deformable vanes and in its entirety with all features to the disclosure of the present Registration is required. Furthermore, the technological background on the DE 2 060 271 A1 referenced, which describes a method for automatically adjusting the entrance swirl in compressors of exhaust gas turbochargers and a distributor thereto.

Die bekannten Drallerzeuger sind aufgrund der Verstellung durch die Gaskraft selbst zwar vom Massendurchsatz abhängig verstell- bzw. verformbar, es hat sich jedoch gezeigt, dass in bestimmten Betriebssituationen diese gaskraftabhängige Regelung alleine nicht ausreichend ist.The known swirl generators are due to the adjustment by the Gas power itself, although dependent on the mass flow rate adjustable or deformable, However, it has been shown that in certain operating situations this gas-dependent Regulation alone is not sufficient.

Aufgabe der Erfindung ist, eine eingangs genannte Drallerzeugungseinrichtung bereitzustellen, welche auch unabhängig von den auf sie wirkenden aerodynamischen Kräften aktiv steuer-/regelbar ist.task The invention is an initially mentioned swirl generating device which also independent of the acting on them aerodynamic forces is actively controllable.

Die Lösung der Aufgabe erfolgt mit den Merkmalen des Anspruchs 1, wobei gemäß der zugrundeliegenden Idee die festen Bereiche der Leitschaufeln mit einem Trägerabschnitt und die verstell- und/oder verformbaren Bereiche der Leitschaufeln mit einem Stellabschnitt verbunden sind. Der Trägerabschnitt ist verdichtergehäusefest angeordnet, ihm gegenüber ist der Stellabschnitt verstellbar.The solution The object is achieved with the features of claim 1, wherein according to the underlying Idea the fixed areas of the vanes with a beam section and the adjustable and / or deformable portions of the vanes with are connected to a control section. The support section is compressor housing fixed arranged, facing him the adjusting section is adjustable.

Eine besonders bevorzugte Ausgestaltung der Erfindung ist Gegenstand der Unteransprüche.A Particularly preferred embodiment of the invention is the subject the dependent claims.

Sehr vorteilhaft ist es, wenn die verstell- und/oder verformbaren Bereiche der elastischen Leitschaufeln endseitig mit einem ringförmig ausgebildeten Stellabschnitt verbunden sind. Eine Verstellung der Drallerzeugungseinrichtung kann durch Drehung des ringförmig ausgebildeten Stellabschnitts erfolgen. Zweckmäßigerweise weist der Stellabschnitt eine Verzahnung zur Antriebsverbindung mit einem Antrieb auf. Gemäß einer bevorzugten Ausgestaltung der Erfindung ist der Antrieb mittels einer Steuereinrichtung auf Basis von Eingangsgrößen, wie Brennkraftmaschinendrehzahl, Turboladerdrehzahl, Abgasdruck, Abgasmassenstrom oder Ladeluftmassenstrom und/oder in der Steuereinrichtung hinterlegter Parameter steuerbar.Very It is advantageous if the adjustable and / or deformable areas the elastic vanes end with a ring-shaped Stellabschnitt are connected. An adjustment of the swirl generating device can by turning the ring trained Stellabschnitts done. Conveniently, the control section has a Gearing for drive connection with a drive on. According to one preferred embodiment of the invention is the drive means a control device based on input variables, such as engine speed, Turbocharger speed, exhaust pressure, exhaust gas mass flow or charge air mass flow and / or parameters stored in the control device can be controlled.

Nachfolgend wird ein besonders zu bevorzugendes Ausführungsbeispiel der Erfindung unter Bezugnahme auf die einzige Figur näher erläutert, welche schematisch und beispielhaft eine Drallerzeugungseinrichtung im Anströmbereich eines Verdichterlaufrads eines abgasgetriebenen Turboladers für eine Brennkraftmaschine zeigt.following becomes a particularly preferable embodiment of the invention with reference to the single figure explained in more detail, which schematically and an example of a swirl generating device in the inflow area a compressor impeller of an exhaust-driven turbocharger for an internal combustion engine shows.

In der Figur ist ein Radialverdichter 122 eines hier nicht näher dargestellten Abgasturboladers einer Brennkraftmaschine mit einer saugseitigen Drallerzeugungseinrichtung 100 dargestellt. Der Verdichter umfasst ein in einem Gehäuse 118 angeordnetes Laufrad 116 mit Laufradschaufeln, welches mittels einer Abgasturbine über eine Welle angetrieben ist. Dabei wird entsprechend der Pfeilrichtung a Ladeluft über eine Ladeluftsaugleitung 120 angesaugt und über einen Diffusorkanal sowie einen Spiralkanal in eine Ladeluftdruckleitung gefördert; gegebenenfalls wird der Ladeluft über eine Leitung 124 rückgeführtes Abgas und/oder Blow-By-Gas zugemischt.In the figure is a centrifugal compressor 122 an exhaust gas turbocharger not shown here an internal combustion engine with a suction-side swirl generating device 100 shown. The compressor includes a housing 118 arranged impeller 116 with impeller blades, which by means of egg ner exhaust gas turbine is driven by a shaft. In this case, according to the direction of the arrow a charge air via a charge air suction line 120 aspirated and conveyed through a diffuser channel and a spiral channel in a charge air pressure line; if necessary, the charge air is via a line 124 recirculated exhaust gas and / or blow-by gas admixed.

Um eine drallbeaufschlagte, gerichtete Anströmung der Laufradschaufeln zu erreichen, ist im Anströmbereich der Drallerzeuger 102 vorgesehen. Gemäß der vorliegenden Ausführung umfasst der Drallerzeuger 102 vier Leitschaufeln 104, deren Austrittswinkel gegenüber der Anströmrichtung kontinuierlich zwischen 0° und ca. 75° variierbar ist. Da eine starre Auslegung eines Drallerzeugers immer einen Kompromiss zwischen akustischem und Volllast-Verhalten des Verdichters darstellt, sind die Leitschaufeln 104 des Drallerzeugers 102 abhängig vom Massendurchsatz verstell- bzw. verformbar. Zu diesem Zweck weisen die Leitschaufeln 104 jeweils einen festen und einen verstell- und/oder verformbaren Bereich auf und sind elastisch ausgebildet, wobei die festen Bereiche der Leitschaufeln 104 anströmseitig angeordnet und mit einem Trägerabschnitt 106 und die verstell- und/oder verformbaren Bereiche der Leitschaufeln 104 laufradseitig angeordnet und mit einem Stellabschnitt 108 verbunden sind.In order to achieve a swirling, directed flow of the impeller blades, the swirl generator is in the inflow region 102 intended. According to the present embodiment, the swirl generator includes 102 four vanes 104 whose outlet angle with respect to the direction of flow is continuously variable between 0 ° and about 75 °. Since a rigid design of a swirl generator always represents a compromise between acoustic and full load behavior of the compressor, the vanes are 104 of the swirl generator 102 depending on the mass flow rate adjustable or deformable. For this purpose, the guide vanes 104 each have a fixed and an adjustable and / or deformable area and are formed elastically, wherein the fixed areas of the guide vanes 104 arranged upstream and with a support portion 106 and the adjustable and / or deformable portions of the vanes 104 arranged impeller side and with a control section 108 are connected.

Der Drallerzeuger 102 ist einteilig in Spritzgussverfahren aus einem relativ weichen, thermoplastischen Kunststoff mit einer Härte von ca. 45 Shore D hergestellt, so dass die Flügel 104 die erforderliche Flexibilität aufweisen.The swirl generator 102 is manufactured in one piece by injection molding from a relatively soft, thermoplastic material with a hardness of about 45 Shore D, so that the wings 104 have the required flexibility.

Die Bereiche, welche eine höhere Stabilität erfordern – wie Trägerabschnitt 106, die Anströmkanten der Flügel 104 und der Achsbereich – sind konstruktiv insbesondere mittels Verseifungsrippen oder Materialverstärkungen entsprechend ausgestaltet. Gegebenenfalls – insbesondere wenn ein Zurückströmen heißer Ladeluft aus dem Verdichter nicht wirksam verhindert werden kann – kann der Drallerzeuger 102 auch glasfaserverstärktes Polyamid oder Metall umfassen. Aufgrund der bei der Ladeluftverdichtung auftretenden hohen Temperaturen ist das Verdichtergehäuse 118 aus Aluminiumguss gefertigt; das Ladeluftsaugrohr 120 besteht aus glasfaserverstärktem Polyamid.The areas that require greater stability - such as beam section 106 , the leading edges of the wings 104 and the axle area - are structurally designed in particular by means of saponification ribs or material reinforcements. If necessary - especially if a backflow of hot charge air from the compressor can not be effectively prevented - can the swirl generator 102 also include glass fiber reinforced polyamide or metal. Due to the high temperatures occurring in the charge air compression is the compressor housing 118 made of cast aluminum; the charge air intake manifold 120 consists of glass fiber reinforced polyamide.

Die Flügel 104 erstrecken sich ausgehend von den Anströmkanten in der mit a gekennzeichneten Strömungsrichtung und weisen dabei zur Drallerzeugung eine Krümmung in radialer Richtung auf. Vorliegend wird die Strömung a in einen Rechtsdrall versetzt, wobei die Richtung der Flügelkrümmung selbstverständlich von der Drehrichtung des im Strömungsverlauf nachfolgenden Pumpen- oder Verdichterlaufrades 116 abhängt.The wings 104 extend starting from the leading edges in the direction of flow marked with a and thereby have a curvature in the radial direction for swirl generation. In the present case, the flow a is placed in a right-handed twist, wherein the direction of the wing curvature of course from the direction of rotation of the downstream in the flow of the pump or compressor impeller 116 depends.

Die Flügel 104 sind an ihrer radial inneren Seite im Drallerzeugerachsbereich ausgehend von den Anströmkanten in Achsrichtung über ca. ihre halbe Länge miteinander verbunden, so dass jeweils ein freies, besonders verformbares Flügelende verbleibt. Radial außenseitig kann sich die Flügelkrümmung vom freien Flügelende bis in den Bereich der Anströmkante fortsetzen, da hier die Flügel 104 nicht festgelegt sind.The wings 104 are connected at their radially inner side in the swirler area starting from the leading edges in the axial direction over about half their length, so that in each case a free, particularly deformable wing end remains. Radial on the outside, the wing curvature can continue from the free end of the wing into the area of the leading edge, since here the wings 104 are not fixed.

In Montagelage ist der Drallerzeuger 102 im Bereich zwischen Saugleitung 120 und Pumpen- bzw. Verdichtergehäuse 118 an seinem ringförmigen Trägerabschnitt 106 festgelegt, so dass die diesen Abschnitt 106 in axialer Richtung überragenden Bereiche, wie Anströmkanten und Flügel 104, zur Aufnahme im Saugrohr oder im Ansaugstutzen einen verringerten Durchmesser aufweisen. In Hinblick auf einen günstigen Strömungsverlauf ist der angeströmte Drallerzeugerachsbereich kegelig ausgebildet, die Flügelkanten sind in Strömungsrichtung a auf einen geringeren Durchmesser zurückgezogen, die Abschlüsse sind gerundet.In mounting position is the swirl generator 102 in the area between suction line 120 and pump or compressor housing 118 at its annular support portion 106 set, so that the this section 106 in the axial direction superior areas, such as leading edges and wings 104 , For receiving in the intake manifold or in the intake manifold have a reduced diameter. With regard to a favorable course of flow, the impinged swirl generator axis region is conical, the blade edges are retracted in the flow direction a to a smaller diameter, the terminations are rounded.

Als Montagehilfe und um eine radial vorgespannte Dichtung in der Saugleitung bzw. im Pumpen- oder Verdichtergehäuse zu gewährleisten, ist der ringförmige Trägerabschnitt 106 des Drallerzeugers 102 außenseitig schräg ausgestaltet, sodass ein Einschub nur in richtiger Richtung möglich ist.As an assembly aid and to ensure a radially biased seal in the suction line or in the pump or compressor housing, the annular support portion 106 of the swirl generator 102 on the outside obliquely designed so that a slot is possible only in the right direction.

Mit den verformbaren Bereichen der elastischen Leitschaufeln 104 ist ein ringförmiger Stellabschnitt 108 verbunden. Der Stellabschnitt 108 weist außenseitig eine Verzahnung 110 auf, welche mit einem Zahnrad 112 in Eingriff steht. Zum Antrieb des Zahnrads 112 ist ein Antrieb 114 vorgesehen. Zweckmäßigerweise ist der Antrieb 114 ein mittels einer Steuereinrichtung steuerbarer elektromotorischer Stelltrieb, wie Schrittmotor. Die Steuerung des Antriebs 114 erfolgt auf Basis von Eingangsgrößen, wie Brennkraftmaschinendrehzahl, Turboladerdrehzahl, Abgasdruck, Abgasmassenstrom oder Ladeluftmassenstrom und/oder in der Steuereinrichtung hinterlegter Parameter. Der Antrieb 114 ist in Hinblick auf eine kompakte Bauweise koaxial zum Zahnrad 112 auf der Seite angeordnet, in welche sich auch der Drallerzeuger 102 erstreckt. Der Kraftfluss bei Verstellung der Leitschaufeln 104 wird geschlossen, indem sowohl der Trägerabschnitt 106 als auch der Antrieb 114 gehäusefest festgelegt ist. Alternativ oder zusätzlich kann der Trägerabschnitt 106 auch direkt mit dem Antrieb 114 verbunden sein.With the deformable areas of the elastic vanes 104 is an annular positioning section 108 connected. The parking section 108 has a toothing on the outside 110 on which with a gear 112 engaged. To drive the gear 112 is a drive 114 intended. Conveniently, the drive 114 a controllable by a control device electromotive actuator, such as stepper motor. The control of the drive 114 occurs on the basis of input variables, such as engine speed, turbocharger speed, exhaust gas pressure, exhaust gas mass flow or charge air mass flow and / or stored in the control device parameters. The drive 114 is coaxial with the gear in terms of a compact design 112 arranged on the side, in which also the swirl generator 102 extends. The power flow when adjusting the vanes 104 is closed by both the support section 106 as well as the drive 114 is fixed to the housing. Alternatively or additionally, the support section 106 also directly with the drive 114 be connected.

Bei einem größer werdenden Ladeluftmassenstrom werden die Leitschaufeln 104 in Richtung kleinerer Austrittswinkel, bei einem kleiner werdenden Ladeluftmassenstrom in Richtung größerer Austrittswinkel verstellt. Die aktive Verstellung mittels des Antriebs 114 ermöglicht jedoch auch eine vom Ladeluftmassenstrom unabhängige Verstellung bzw. die Einbeziehung weiterer Parameter. Insbesondere kann der Drallerzeuger 102 deaktiviert werden, indem die Leitschaufeln 104 zumindest annähernd gerade gestellt werden.As the charge air mass flow becomes larger, the vanes become larger 104 in the direction of smaller outlet angle, adjusted at a decreasing charge air mass flow in the direction of larger exit angle. Active adjustment by means of the drive 114 However, it also allows you to load one air mass flow independent adjustment or the inclusion of other parameters. In particular, the swirl generator 102 be deactivated by the vanes 104 at least approximately straight.

Claims (5)

Drallerzeugungseinrichtung zur drallbeaufschlagten Anströmung eines Verdichterlaufrads, insbesondere eines Turboladers für eine Brennkraftmaschine, mit jeweils einen festen und einen verstell- und/oder verformbaren Bereich aufweisenden elastischen Leitschaufeln, dadurch gekennzeichnet, dass die festen Bereiche der Leitschaufeln (104) mit einem Trägerabschnitt (106) und die verstell- und/oder verformbaren Bereiche der Leitschaufeln (104) mit einem Stellabschnitt (108) verbunden sind.Swirl generating device for the swirl-induced flow of a compressor impeller, in particular a turbocharger for an internal combustion engine, each having a fixed and an adjustable and / or deformable region having elastic guide vanes, characterized in that the fixed areas of the guide vanes ( 104 ) with a carrier section ( 106 ) and the adjustable and / or deformable areas of the guide vanes ( 104 ) with a positioning section ( 108 ) are connected. Drallerzeugungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die verstell- und/oder verformbaren Bereiche der elastischen Leitschaufeln (104) endseitig mit einem ringförmig ausgebildeten Stellabschnitt (108) verbunden sind.Spin generating device according to claim 1, characterized in that the adjustable and / or deformable regions of the elastic guide vanes ( 104 ) end with a ring-shaped control section ( 108 ) are connected. Drallerzeugungseinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Stellabschnitt (108) eine Verzahnung (110) zur Antriebsverbindung mit einem Antrieb (114) aufweist.Spin generating device according to claim 1 or 2, characterized in that the actuating section ( 108 ) a gearing ( 110 ) for driving connection with a drive ( 114 ) having. Drallerzeugungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Antrieb (114) mittels einer Steuereinrichtung steuerbar ist.Spin generating device according to one of the preceding claims, characterized in that the drive ( 114 ) is controllable by means of a control device. Drallerzeugungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Antrieb (114) auf Basis von Eingangsgrößen, wie Brennkraftmaschinendrehzahl, Turboladerdrehzahl, Abgasdruck, Abgasmassenstrom oder Ladeluftmassenstrom und/oder in der Steuereinrichtung hinterlegter Parameter gesteuert wird.Spin generating device according to one of the preceding claims, characterized in that the drive ( 114 ) is controlled on the basis of input variables, such as engine speed, turbocharger speed, exhaust gas pressure, exhaust gas mass flow or charge air mass flow and / or stored in the control device parameters.
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DE102011111747A1 (en) * 2011-08-24 2013-02-28 Daimler Ag Compressor for exhaust turbocharger of internal combustion engine, particularly gasoline engine of motor vehicle, particularly passenger car, comprises guide element arranged against air flow in axial direction of compressor wheel
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DE102013217507A1 (en) * 2013-09-03 2015-03-05 Siemens Aktiengesellschaft Adjustable guide vanes for turbomachinery
WO2015098391A1 (en) * 2013-12-26 2015-07-02 Toyota Jidosha Kabushiki Kaisha Exhaust gas recirculation apparatus for internal combustion engine with supercharger
DE102005045194B4 (en) * 2005-09-21 2016-06-09 Fev Gmbh Guide for a turbo compressor of an internal combustion engine
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DE102019121754A1 (en) * 2019-08-13 2021-02-18 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Compressor inlet with switchable swirl generator
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DE102018221147B4 (en) 2018-12-06 2022-06-23 Ford Global Technologies, Llc Supercharged internal combustion engine with a compressor and a guide device arranged upstream of the compressor
WO2022241937A1 (en) * 2021-05-20 2022-11-24 江苏大学 Flexible guide vane structure of flow-area-adjustable mixed flow pump, mixed flow pump, and adjustment method

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DE102005045194B4 (en) * 2005-09-21 2016-06-09 Fev Gmbh Guide for a turbo compressor of an internal combustion engine
US8221058B2 (en) 2006-05-19 2012-07-17 Mahle International Gmbh Fresh gas system swirl generator
WO2007135089A1 (en) * 2006-05-19 2007-11-29 Mahle International Gmbh Fresh gas system
DE102007039120A1 (en) 2007-08-18 2009-02-19 Bayerische Motoren Werke Aktiengesellschaft Swirler
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EP2028374A3 (en) * 2007-08-18 2012-05-02 Bayerische Motoren Werke Aktiengesellschaft Swirl cup
DE102007039120B4 (en) 2007-08-18 2021-09-16 Bayerische Motoren Werke Aktiengesellschaft Swirl generating device
DE102008046220A1 (en) 2008-09-08 2010-03-11 Bosch Mahle Turbo Systems Gmbh & Co. Kg Swirl producing device for use in exhaust gas turbocharger in internal-combustion engine of motor vehicle, has guide vane movably arranged with respect to vane length that extends in radial and/or transverse directions in flow channel
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DE102009014279A1 (en) 2009-03-20 2010-09-23 Bosch Mahle Turbo Systems Gmbh & Co. Kg Spin generator for spin impinged inflow of compressor impeller of loading device, particularly exhaust gas turbocharger for internal combustion engine, has multiple guide blades arranged in flow channel in periphery direction
DE102010054478A1 (en) 2010-12-14 2012-06-14 Dichtungstechnik G. Bruss Gmbh & Co. Kg Air intake system for charged internal combustion engine e.g. diesel engine, of motor car, has compressor wheel and swirl generator arranged in pure air duct, and vacuum pipe arranged in central portion of swirl generator
DE102011111747A1 (en) * 2011-08-24 2013-02-28 Daimler Ag Compressor for exhaust turbocharger of internal combustion engine, particularly gasoline engine of motor vehicle, particularly passenger car, comprises guide element arranged against air flow in axial direction of compressor wheel
DE102011121996B4 (en) * 2011-12-23 2013-07-11 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Device for operating a compressor
DE102011121996A1 (en) * 2011-12-23 2013-06-27 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Compressor operating device, has flow guide elements coupled with flexible element such that flow guide elements are not extended in direction of flowing gas along flow axis when reducing passage area with respect to another passage area
DE102012104479A1 (en) * 2012-05-24 2013-11-28 Woco Industrietechnik Gmbh Compressor housing e.g. turbocharger housing, has metallic material primary housing element that is connected partially with function component so as to form plastic-material made secondary housing element
DE102012104479B4 (en) * 2012-05-24 2016-05-25 Woco Industrietechnik Gmbh Compressor housing, in particular turbocharger housing, and method for producing a compressor housing
FR2999251A1 (en) * 2012-12-06 2014-06-13 Coutier Moulage Gen Ind Feeding attachment for supplying compressor compressing air-fuel mixture of internal combustion engine of e.g. tourism vehicle, has wing elastically deformable between minimal deformation position and maximum deformation position
DE102013217507A1 (en) * 2013-09-03 2015-03-05 Siemens Aktiengesellschaft Adjustable guide vanes for turbomachinery
WO2015098391A1 (en) * 2013-12-26 2015-07-02 Toyota Jidosha Kabushiki Kaisha Exhaust gas recirculation apparatus for internal combustion engine with supercharger
US20160222875A1 (en) * 2015-02-04 2016-08-04 Bullseye Power, LLC Tunable turbocharger compressor cover
US9932885B2 (en) * 2015-02-04 2018-04-03 Bullseye Power, LLC Tunable turbocharger compressor cover
DE102019110518A1 (en) 2018-04-23 2019-10-24 Ford Global Technologies, Llc INTEGRATED WELL TUBE AND DRILL CHANNEL FOR DRUM GENERATION
US10844817B2 (en) 2018-04-23 2020-11-24 Ford Global Technologies, Llc Convolute-swirl integrated duct for swirl generation
DE102018221147B4 (en) 2018-12-06 2022-06-23 Ford Global Technologies, Llc Supercharged internal combustion engine with a compressor and a guide device arranged upstream of the compressor
DE102019121754A1 (en) * 2019-08-13 2021-02-18 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Compressor inlet with switchable swirl generator
DE102019121754B4 (en) 2019-08-13 2022-06-23 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Compressor inlet with switchable swirl generator
DE102020112870A1 (en) 2020-05-12 2021-11-18 Borgwarner Inc. Compressor device of a supercharger for an internal combustion engine
DE102020112870B4 (en) 2020-05-12 2022-03-24 Borgwarner Inc. Compressor device of a charging device for an internal combustion engine
WO2022241937A1 (en) * 2021-05-20 2022-11-24 江苏大学 Flexible guide vane structure of flow-area-adjustable mixed flow pump, mixed flow pump, and adjustment method
US11988222B2 (en) 2021-05-20 2024-05-21 Jiangsu University Flexible guide vane structure of mixed flow pump with adjustable flow area, mixed flow pump and adjustment method

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