DE102009031229A1 - Guide vane for e.g. variable turbine of supercharger, in motor vehicle, has turning points provided between nose circle and largest construction circle that is placed in flow direction behind nose circle, where vane has dolphin shape - Google Patents
Guide vane for e.g. variable turbine of supercharger, in motor vehicle, has turning points provided between nose circle and largest construction circle that is placed in flow direction behind nose circle, where vane has dolphin shape Download PDFInfo
- Publication number
- DE102009031229A1 DE102009031229A1 DE102009031229A DE102009031229A DE102009031229A1 DE 102009031229 A1 DE102009031229 A1 DE 102009031229A1 DE 102009031229 A DE102009031229 A DE 102009031229A DE 102009031229 A DE102009031229 A DE 102009031229A DE 102009031229 A1 DE102009031229 A1 DE 102009031229A1
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- Germany
- Prior art keywords
- circle
- vane
- flow direction
- nose circle
- guide vane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
- F01D17/165—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line
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- 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
- F05D2250/70—Shape
- F05D2250/71—Shape curved
-
- 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
- F05D2250/70—Shape
- F05D2250/71—Shape curved
- F05D2250/713—Shape curved inflexed
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Supercharger (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Die
vorliegende Erfindung betrifft eine Leitschaufel für eine
Ladeeinrichtung, insbesondere für eine variable Turbinen-
und/oder Verdichtergeometrie eines Abgasturboladers in einem Kraftfahrzeug gemäß dem
Oberbegriff 1. Die Erfindung betrifft außerdem eine mit
zumindest einer derartigen Leitschaufel ausgestattete variable Turbinen-
und/oder Verdichtergeometrie in einer Ladeeinrichtung.The
The present invention relates to a vane for a
Charging device, in particular for a variable turbine
and / or compressor geometry of an exhaust gas turbocharger in a motor vehicle according to the
Turbolader sind zur Steigerung der Leistung von Verbrennungsmotoren seit längerem bekannt, wobei ein Ladedruck bei herkömmlichen Turboladern dadurch begrenzt werden kann, das beispielsweise ein sogenanntes Waste-Gate-Ventil das heiße Abgas zum Teil an der Turbine vorbei führt und somit die Leistung der Turbine reduziert. Dies bietet den Vorteil, dass der Turbolader schon weit unterhalb des Nennleistungspunktes des Verbrennungsmotors problemlos arbeitet. Alternativ hierzu sind auch sogenannte variable Turbinen- und/oder Verdichtergeometrien bekannt, mittels welchen die Leistungsabgabe und das Ansprechverhalten unter unterschiedlichen Betriebsbedingungen, wie beispielsweise Lastwechseln, besser angepasst werden können. Für eine thermodynamische Effizienz, eine Regelcharakteristik sowie für einen benötigten radialen Bauraum ist dabei immer die Querschnittsform der Leitschaufel ausschlaggebend. Üblicherweise wird dabei die Form der Leitschaufel in der Regel über die sogenannte Profilmittellinie, auch Krümmungslinie genannt, beschrieben, die zwischen dem Mittelpunkt des Nasenkreises und dem Mittelpunkt des Endkreises der Leitschaufel verläuft. Ermittelt wird die Profilmittellinie, indem innerhalb des Leitschaufelprofils zu Ober- und Unterseite tangentiale Kreise hineingelegt werden. Die Verbindungslinie der Kreismittelpunkte bildet dabei die Profilmittellinie.turbocharger are for increasing the performance of internal combustion engines for a long time known, whereby a boost pressure in conventional turbochargers characterized can be limited, for example, a so-called waste gate valve the hot exhaust gas partly leads past the turbine and thus reduces the power of the turbine. This offers the advantage that the turbocharger is already well below the rated power point the internal combustion engine works without problems. Alternatively, these are also so-called variable turbine and / or compressor geometries known, by means of which the power output and the response under different operating conditions, such as Load changes, can be better adapted. For one thermodynamic efficiency, a control characteristic and for a required radial space is always the cross-sectional shape the vane decisive. Usually will be included the shape of the vane usually on the so-called Profile centerline, also called curvature line described, between the center of the nose circle and the center the end of the vane runs. Is determined the center profile of the profile, within the guide vane profile to and underside tangential circles are inserted. The connecting line The center of the circle forms the profile center line.
Aus
der
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für eine gattungsgemäße Leitschaufel, eine verbesserte Ausführungsform anzugeben, die insbesondere strömungstechnisch günstiger ist.The The present invention addresses the problem of for a generic vane, to provide an improved embodiment, in particular aerodynamically favorable.
Dieses Problem wird erfindungsgemäß durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This Problem is inventively by the objects of the independent claims. advantageous Embodiments are the subject of the dependent Claims.
Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, ein Querschnittsprofil ein Leitschaufel für eine Ladeeinrichtung, insbesondere für eine variable Turbinen- und/oder Verdichtergeometrie eines Abgasturboladers, nicht wie bisher tropfenförmig, sondern delphinartig auszubilden, wodurch die strömungstechnischen Eigenschaften einer derartigen Leitschaufel deutlich verbessert werden können. Das delphinartige Profil der erfindungsgemäßen Leitschaufel zeichnet sich dabei durch zwei wesentliche Merkmale aus: Zum einen besitzt die erfindungsgemäße Leitschaufel eine wendepunktfreie Profilmittellinie und zum anderen jeweils zwei Wendepunkte, die auf einer Oberseite und auf einer Unterseite der Leitschaufel zwischen einem Nasenkreis und dem in Strömungsrichtung dahinter gelegenen größten Konstruktionskreis liegen. Durch die wendepunktfreie Profilmittellinie besitzt die erfindungsgemäße Leitschaufel eine symmetrische Form.The The present invention is based on the general idea of a cross-sectional profile a guide vane for a charging device, in particular for a variable turbine and / or compressor geometry of an exhaust gas turbocharger, not drop-shaped as before, but dolphin-like, whereby the fluidic properties of such Guide vane can be significantly improved. The dolphin-like Profile of the guide vane invention draws is characterized by two essential features: First, has the guide vane according to the invention a turning point-free profile centerline and on the other two turning points each on an upper side and on a bottom of the vane between a nasal circle and downstream of the flow downstream Construction circle lie. Through the turning point-free profile center line has the guide vane according to the invention a symmetrical shape.
Durch solche delphinartige Leitschaufeln kann darüber hinaus ein Öffnungsmoment zur Betätigung der Leitschaufeln verringert werden, wodurch geringere Stellkräfte und dadurch beispielsweise auch ein kleinerer Stellmechanismus erforderlich sind. Sowohl der leichter bauende Verstellmechanismus als auch eine diesen antreibende Stelleinrichtung, können somit leichter und insbesondere kompakter ausgebildet werden, was im modernen Kraftfahrzeugbau von wesentlichem Vorteil ist.By In addition, such dolphin-like vanes can an opening moment for actuating the guide vanes be reduced, resulting in lower actuating forces and thereby For example, a smaller actuator mechanism are required. Both the lighter-built adjustment mechanism and a this driving actuating device, thus can be easier and be formed in particular compact, resulting in modern motor vehicle is of significant advantage.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Further important features and advantages of the invention will become apparent from the Subclaims, from the drawings and from the associated Description of the figures with reference to the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It it is understood that the above and the following yet to be explained features not only in each case specified combination, but also in other combinations or can be used in isolation, without the scope of the present To leave invention.
Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Bauteile beziehen.preferred Embodiments of the invention are in the drawings and will become more apparent in the following description explained, wherein the same reference numerals to the same or similar or functionally identical components relate.
Dabei zeigen, jeweils schematisch,there show, in each case schematically,
Entsprechend
den
Gemäß der
- M
- = ein Abstand in Strömungsrichtung zwischen einem Mittelpunkt des Nasenkreises und dem größten Konstruktionskreis,
- L
- = ein Abstand in Strömungsrichtung zwischen dem Mittelpunkt des Nasenkreises und dem Ende der Leitschaufel,
- RK
- = Radius des Nasenkreises,
- RM
- = Radius des größten Konstruktionskreises.
- M
- = a distance in the flow direction between a center of the nose circle and the largest construction circle,
- L
- a distance in the flow direction between the center of the nose circle and the end of the vane,
- R K
- = Radius of the nose circle,
- R M
- = Radius of the largest construction circle.
Gemäß der
- M
- = ein Abstand in Strömungsrichtung zwischen einem Mittelpunkt des Nasenkreises und dem größten Konstruktionskreis,
- L
- = ein Abstand in Strömungsrichtung zwischen dem Mittelpunkt des Nasenkreises und dem Ende der Leitschaufel,
- RK
- = Radius des Nasenkreises,
- RM
- = Radius des größten Konstruktionskreises.
- M
- = a distance in the flow direction between a center of the nose circle and the largest construction circle,
- L
- a distance in the flow direction between the center of the nose circle and the end of the vane,
- R K
- = Radius of the nose circle,
- R M
- = Radius of the largest construction circle.
Beiden
gezeigten Leitschaufelprofilen ist dabei gemein, dass diese einen
delphinartigen Querschnitt aufweisen und dadurch strömungstechnisch besonders
günstig ausgebildet sind. Insbesondere weisen derartige
Leitschaufeln
Generell
sind dabei die beiden dargestellten Leitschaufeln
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - US 6709232 B1 [0003] - US 6709232 B1 [0003]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009031229A DE102009031229A1 (en) | 2009-07-01 | 2009-07-01 | Guide vane for e.g. variable turbine of supercharger, in motor vehicle, has turning points provided between nose circle and largest construction circle that is placed in flow direction behind nose circle, where vane has dolphin shape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009031229A DE102009031229A1 (en) | 2009-07-01 | 2009-07-01 | Guide vane for e.g. variable turbine of supercharger, in motor vehicle, has turning points provided between nose circle and largest construction circle that is placed in flow direction behind nose circle, where vane has dolphin shape |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009031229A1 true DE102009031229A1 (en) | 2011-01-20 |
Family
ID=43382704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009031229A Ceased DE102009031229A1 (en) | 2009-07-01 | 2009-07-01 | Guide vane for e.g. variable turbine of supercharger, in motor vehicle, has turning points provided between nose circle and largest construction circle that is placed in flow direction behind nose circle, where vane has dolphin shape |
Country Status (1)
Country | Link |
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DE (1) | DE102009031229A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015205208A1 (en) * | 2015-03-23 | 2016-09-29 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Charging device with variable turbine geometry |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6709232B1 (en) | 2002-09-05 | 2004-03-23 | Honeywell International Inc. | Cambered vane for use in turbochargers |
DE102005014871A1 (en) * | 2004-03-30 | 2005-11-10 | Mitsubishi Fuso Truck And Bus Corp. | Blade mold design program and method |
DE102005025213A1 (en) * | 2005-06-01 | 2006-12-07 | Honda Motor Co., Ltd. | Blade of an axial flow machine |
US20080260528A1 (en) * | 2005-11-25 | 2008-10-23 | Mathias Weber | Turbocharger |
-
2009
- 2009-07-01 DE DE102009031229A patent/DE102009031229A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6709232B1 (en) | 2002-09-05 | 2004-03-23 | Honeywell International Inc. | Cambered vane for use in turbochargers |
DE102005014871A1 (en) * | 2004-03-30 | 2005-11-10 | Mitsubishi Fuso Truck And Bus Corp. | Blade mold design program and method |
DE102005025213A1 (en) * | 2005-06-01 | 2006-12-07 | Honda Motor Co., Ltd. | Blade of an axial flow machine |
US20080260528A1 (en) * | 2005-11-25 | 2008-10-23 | Mathias Weber | Turbocharger |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015205208A1 (en) * | 2015-03-23 | 2016-09-29 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Charging device with variable turbine geometry |
US10458321B2 (en) | 2015-03-23 | 2019-10-29 | BMTS Technology GmbH & Co. KG | Charger device with variable turbine geometry |
EP3073063B1 (en) * | 2015-03-23 | 2020-12-09 | BMTS Technology GmbH & Co. KG | Charging device and corresponding vane |
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Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R012 | Request for examination validly filed | ||
R081 | Change of applicant/patentee |
Owner name: BMTS TECHNOLOGY GMBH & CO. KG, DE Free format text: FORMER OWNER: BOSCH MAHLE TURBO SYSTEMS GMBH & CO. KG, 70376 STUTTGART, DE |
|
R082 | Change of representative |
Representative=s name: BRP RENAUD UND PARTNER MBB RECHTSANWAELTE PATE, DE |
|
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |