DE102006058415A1 - Flow machine, especially turbo-power plant for jet aircraft, has rotor blades with front edge on inflow side having curved shape - Google Patents
Flow machine, especially turbo-power plant for jet aircraft, has rotor blades with front edge on inflow side having curved shape Download PDFInfo
- Publication number
- DE102006058415A1 DE102006058415A1 DE200610058415 DE102006058415A DE102006058415A1 DE 102006058415 A1 DE102006058415 A1 DE 102006058415A1 DE 200610058415 DE200610058415 DE 200610058415 DE 102006058415 A DE102006058415 A DE 102006058415A DE 102006058415 A1 DE102006058415 A1 DE 102006058415A1
- Authority
- DE
- Germany
- Prior art keywords
- front edge
- rotor blades
- extremes
- hub body
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- F04D29/384—Blades characterised by 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
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
- F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
- F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
- F02K3/06—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type with front fan
-
- 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
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/324—Blades
-
- 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
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/303—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the leading edge of a rotor blade
-
- 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
- F05D2250/10—Two-dimensional
- F05D2250/18—Two-dimensional patterned
- F05D2250/184—Two-dimensional patterned sinusoidal
-
- 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
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Strömungsmaschine, insbesondere Turbotriebwerk, mit einem in einem Strömungskanal rotierenden angetriebenen Fan-Rotor, der einen Nabenkörper und davon abstehende, einander überlappende Rotorschaufeln aufweist, wobei die Rotorschaufeln auf der Anströmseite Vorderkanten mit vom Nabenkörper bis zum äußeren Ende kurvenförmigem Verlauf haben.The Invention relates to a turbomachine, in particular turbo engine, with one in a flow channel rotating driven fan rotor, which has a hub body and protruding from each other, overlapping Rotor blades, wherein the rotor blades on the upstream side leading edges with the hub body to the outer end curved course to have.
Moderne
Flugtriebwerke, wie sie beispielsweise in
Bei
einem Gebläserotor
mit sich in Frontansicht überlappenden
Rotorschaufeln ist der Verlauf der Vorderkanten der Rotorschaufeln
ein wesentlicher Faktor zur Steigerung der Leistungsdichte, des Wirkungsgrades
und/oder für
die Lärmreduzierung. Ein
Beispiel für
den Verlauf der Vorderkanten eines Fan-Rotors ist in
Der Erfindung liegt die Aufgabe zugrunde, eine Rotorschaufelform für ein Turbotriebwerk zu schaffen, die durch Verringerung der Stoßverluste der Luft einen erhöhten Wirkungsgrad bietet.Of the Invention is based on the object, a rotor blade shape for a turbo engine to create, by reducing the impact losses of air increased efficiency offers.
Das erfindungsgemäße Turbotriebwerk ist durch den Patentanspruch 1 definiert. Hiernach weisen die Vorderkanten eine stetige Kurve mit mindestens drei abwechselnd Maxima und Minima bildenden Extrema auf. Durch die wellenförmige Gestalt der Vorderkante werden an den Einbeulungen die Verdichtungsstöße vermindert. Die Strömung wird so beeinflusst, dass die Stoßverluste in der Passage zwischen den Rotorschaufeln minimiert werden. Hierdurch wird eine Steigerung des Wirkungsgrades bewirkt, ohne dass eine Verringerung des Massenstromes erfolgt. Der erzeugte Schub bleibt von der Erhöhung des Wirkungsgrades unbeeinflusst.The Turbo engine according to the invention is defined by the patent claim 1. Hereinafter, the leading edges point a continuous curve with at least three alternating maxima and minima forming extremes. Due to the wavy shape of the front edge At the dentures the compression shocks are reduced. The flow is so influenced that the shock losses be minimized in the passage between the rotor blades. hereby an increase in efficiency is effected without a reduction the mass flow takes place. The generated thrust remains from the increase of the Efficiency unaffected.
Unter einem Extremum oder Extremwert ist im Rahmen der Erfindung ein vorstehender Bereich nach Art eines Buckels zu verstehen, oder ein zurückstehender Bereich in Form eines Tales. Eine plötzlich abbrechende vorstehende Spitze stellt kein Extremum dar und wird bei der Bestimmung der Anzahl der Extrema nicht mitgezählt.Under An extremum or extreme value is a projecting one within the scope of the invention To understand area in the manner of a hump, or a receding Area in the form of a valley. A sudden erupting protruding Tip is not an extremum and is used in the determination of Number of extremes not counted.
Falls drei Extrema vorhanden sind, können diese von innen nach außen ein Maximum, ein Minimum und wiederum ein Maximum aufweisen. Vorzugsweise bildet der innerste Extremwert ein Maximum. Grundsätzlich ist es aber auch möglich, innen mit einem Minimum zu beginnen.If three extremes are present, these can from the inside to the outside have a maximum, a minimum and again a maximum. Preferably the innermost extreme value forms a maximum. Basically but it is also possible to start with a minimum inside.
Gemäß einer bevorzugten Ausführungsform der Erfindung bilden die Vorderkanten eine Doppel-S-Kurve mit mindestens vier Extrema. Hierbei dient die Form des Buchstabens "S" nur zur grundsätzlichen Charakterisierung zweier benachbarter Extrema. Unter die Definition des "S" soll auch der spiegelbildliche Verlauf fallen, wie er bei einem Fragezeichen vorliegt. Wichtig ist, dass gegenläufige Extrema einander abwechseln.According to one preferred embodiment of Invention, the leading edges form a double S-curve with at least four extremes. Here, the shape of the letter "S" is only for basic characterization two adjacent extremes. Under the definition of the "S" also the mirror-image course should fall, as it is with a question mark. It's important, that opposing Extrema alternate.
Vorzugsweise ist vorgesehen, dass die Abstände zwischen den Extrema von innen nach außen abnehmen.Preferably is provided that the distances between the extremes from the inside out.
Ferner können die Höhen der Extrema von innen nach außen abnehmen.Further can the heights the extremes from the inside out lose weight.
Im Folgenden wird unter Bezugnahme auf die Zeichnungen ein Ausführungsbeispiel der Erfindung näher erläutert.in the An embodiment will be described below with reference to the drawings closer to the invention explained.
Es zeigen:It demonstrate:
In
Das
Turbotriebwerk weist ein ringförmiges Gehäuse
Das
Triebwerksgehäuse
Die
Schaufeln
Erfindungsgemäß ist die
Vorderkante
Die Anzahl der Extrema kann von der des vorliegenden Ausführungsbeispiels abweichen. Wichtig ist, dass mindestens drei Extrema vorhanden sind.The Number of extremes can be different from that of the present embodiment differ. It is important that there are at least three extremes.
Das äußere Ende
In
den Passagen zwischen den Schaufeln treten infolge der, aus radialer
Richtung betrachtet, gebogenen Schaufelform Verzögerungen an den Einbeulungen
auf. Diese Verzögerungen
bewirken Verdichtungsstöße. Durch
die beschriebene Ausbildung der Vorderkante
Bei
dem vorliegenden Ausführungsbeispiel wurde
die Schaufelform anhand des Fan-Rotors
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610058415 DE102006058415A1 (en) | 2006-12-12 | 2006-12-12 | Flow machine, especially turbo-power plant for jet aircraft, has rotor blades with front edge on inflow side having curved shape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610058415 DE102006058415A1 (en) | 2006-12-12 | 2006-12-12 | Flow machine, especially turbo-power plant for jet aircraft, has rotor blades with front edge on inflow side having curved shape |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006058415A1 true DE102006058415A1 (en) | 2008-06-19 |
Family
ID=39399488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610058415 Withdrawn DE102006058415A1 (en) | 2006-12-12 | 2006-12-12 | Flow machine, especially turbo-power plant for jet aircraft, has rotor blades with front edge on inflow side having curved shape |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006058415A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013130163A1 (en) * | 2011-12-22 | 2013-09-06 | General Electric Company | Airfoils and corresponding fabricating method |
US10578126B2 (en) * | 2016-04-26 | 2020-03-03 | Acme Engineering And Manufacturing Corp. | Low sound tubeaxial fan |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB791563A (en) * | 1955-05-02 | 1958-03-05 | Joseph Vaghi | Improvements relating to structures for use as an airplane wing, a propeller blade, a blower or fan blade |
DE10210426A1 (en) * | 2002-03-09 | 2003-10-23 | Voith Siemens Hydro Power | Device for flow stabilization in hydraulic flow machines |
-
2006
- 2006-12-12 DE DE200610058415 patent/DE102006058415A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB791563A (en) * | 1955-05-02 | 1958-03-05 | Joseph Vaghi | Improvements relating to structures for use as an airplane wing, a propeller blade, a blower or fan blade |
DE10210426A1 (en) * | 2002-03-09 | 2003-10-23 | Voith Siemens Hydro Power | Device for flow stabilization in hydraulic flow machines |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013130163A1 (en) * | 2011-12-22 | 2013-09-06 | General Electric Company | Airfoils and corresponding fabricating method |
CN104114815A (en) * | 2011-12-22 | 2014-10-22 | 通用电气公司 | Airfoils and corresponding fabricating method |
US9249666B2 (en) | 2011-12-22 | 2016-02-02 | General Electric Company | Airfoils for wake desensitization and method for fabricating same |
CN104114815B (en) * | 2011-12-22 | 2016-10-12 | 通用电气公司 | Airfoil and corresponding manufacture method |
US10578126B2 (en) * | 2016-04-26 | 2020-03-03 | Acme Engineering And Manufacturing Corp. | Low sound tubeaxial fan |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19650656C1 (en) | Turbo machine with transonic compressor stage | |
DE69622002T2 (en) | Swept turbo machine blade | |
EP1953344B1 (en) | Turbine blade | |
DE1476796C3 (en) | A component of a gas turbine system made integrally from a high-strength material | |
DE69423789T2 (en) | FLOW CONTROL DEVICE FOR THE COMPRESSOR PART OF A FLUID MACHINE | |
DE60031941T2 (en) | Inclined airfoil with barrel-shaped leading edge | |
DE2642603A1 (en) | COMPRESSOR HOUSING FOR A GAS TURBINE ENGINE | |
EP2558685B1 (en) | Guide vane | |
EP3715586B1 (en) | Rotor blade of a turbomachine | |
EP3940200A1 (en) | Bucket wheel of a turbomachine | |
EP3682092B1 (en) | Exhaust gas turbine with a diffusser | |
DE102009043889A1 (en) | Steam turbine rotary blade for a low pressure section of a steam turbine | |
EP3999716A1 (en) | Rotor blade for a turbomachine, associated turbine module, and use thereof | |
DE102004011607B4 (en) | Compressor of a gas turbine and gas turbine | |
EP2597257B1 (en) | Blades | |
EP1759090A1 (en) | Vane comprising a transition zone | |
EP3495639B1 (en) | Compressor module for a turbomachine reducing the boundary layer in an intermediate compressor case | |
EP2458149B1 (en) | Aircraft engine blades | |
DE102006058415A1 (en) | Flow machine, especially turbo-power plant for jet aircraft, has rotor blades with front edge on inflow side having curved shape | |
EP3327258A1 (en) | Inlet guide vane for a turbo engine | |
DE10352789B4 (en) | gas turbine | |
DE102022100315A1 (en) | Blade, in particular moving blade or guide blade, with an asymmetrical leading edge profile for a gas turbine | |
EP3572622B1 (en) | Intermediate turbine housing with specifically shaped annulus contour | |
WO2015189234A1 (en) | Compressor for high suction capacity | |
DE102020216193A1 (en) | Blade component, method of manufacture thereof and gas turbine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8130 | Withdrawal |