DE102007039175A1 - Gas turbine blade i.e. compressor blade, has platforms supporting turbine blade and connected with disk, where outer contour of one platform runs parallel to outer contour of turbine blade - Google Patents
Gas turbine blade i.e. compressor blade, has platforms supporting turbine blade and connected with disk, where outer contour of one platform runs parallel to outer contour of turbine blade Download PDFInfo
- Publication number
- DE102007039175A1 DE102007039175A1 DE102007039175A DE102007039175A DE102007039175A1 DE 102007039175 A1 DE102007039175 A1 DE 102007039175A1 DE 102007039175 A DE102007039175 A DE 102007039175A DE 102007039175 A DE102007039175 A DE 102007039175A DE 102007039175 A1 DE102007039175 A1 DE 102007039175A1
- Authority
- DE
- Germany
- Prior art keywords
- turbine blade
- outer contour
- platform
- blade
- gas turbine
- 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- Withdrawn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
- 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
- F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
-
- 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
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
-
- 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
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
- F01D5/303—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot
- F01D5/3038—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot the slot having inwardly directed abutment faces on both sides
-
- 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
- F05D2240/80—Platforms for stationary or moving 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
- F05D2250/00—Geometry
- F05D2250/30—Arrangement of components
- F05D2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
- F05D2250/312—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being parallel to each other
-
- 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
Abstract
Description
Die Erfindung bezieht sich auf eine Gasturbinenschaufel gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a gas turbine blade according to the preamble of claim 1.
Im Einzelnen bezieht sich die Erfindung auf eine Gasturbinenschaufel mit einer Plattform, welche eine Schaufel trägt und welche mittels eines Fußes an einer Scheibe verankert ist. Die Verankerung an der Scheibe erfolgt sowohl in radialer Richtung der Scheibe als auch in deren Umfangsrichtung. Die Erfindung betrifft insbesondere auch eine Verdichterschaufel, welche rotierend oder statisch sein kann.in the More particularly, the invention relates to a gas turbine blade with a platform that carries a shovel and which one is anchored to a disc by means of a foot. The Anchoring to the disc takes place both in the radial direction of the disc as well as in their circumferential direction. The invention particularly relates also a compressor blade, which may be rotating or static can.
Diesbezüglich
kann auf den Stand der Technik verwiesen werden, beispielsweise
die
Bei den aus dem Stand der Technik bekannten Konstruktionen sind die Plattformen der Schaufeln jeweils quadratisch oder rechteckig ausgebildet und weisen somit gerade Begrenzungskanten auf, mit denen benachbarte Schaufeln aneinander liegen. Bedingt durch ein konstruktiv vorgegebenes Spiel ergeben sich Spalte zwischen den einzelnen Plattformen, die während des Betriebes der Gasturbine sich noch erweitern können. Hierdurch ergibt sich die Möglichkeit einer unerwünschten Luftströmung, die zu erheblichen aerodynamischen Verlusten führen kann. Der Wirkungsgrad kann somit stark beeinträchtigt werden. Der Stand der Technik zeigt dabei jedoch keine profilierten Plattformen.at the constructions known from the prior art are the Platforms of the blades each square or rectangular shaped and thus have straight boundary edges, with which adjacent Shovels lie against each other. Due to a structurally given Game arise gaps between each platform, the to expand during the operation of the gas turbine can. This results in the possibility an undesirable air flow, which is too significant can cause aerodynamic losses. The efficiency can thus be severely impaired. The state of the art shows no profiled platforms.
Der Erfindung liegt die Aufgabe zugrunde, eine Gasturbinenschaufel der eingangs genannten Art zu schaffen, welche bei einfachem Aufbau und einfacher, kostengünstiger Herstellbarkeit die Nachteile des Standes der Technik vermeidet und zu einem erhöhten Wirkungsgrad führt.Of the Invention is based on the object, a gas turbine blade of the to create the aforementioned type, which with a simple structure and easier, less expensive manufacturability the disadvantages of the prior art avoids and increased Efficiency leads.
Erfindungsgemäß wird die Aufgabe durch die Merkmalskombination des Anspruchs 1 gelöst, die Unteransprüche zeigen weitere vorteilhafte Ausgestaltungen der Erfindung.According to the invention the problem solved by the combination of features of claim 1, the Subclaims show further advantageous embodiments the invention.
Erfindungsgemäß ist somit vorgesehen, dass die Außenkontur der Plattform (in Umfangsrichtung der Scheibe) im Wesentlichen parallel zu einer Außenkontur der Schaufel verläuft.According to the invention thus provided that the outer contour of the platform (in Circumferential direction of the disc) substantially parallel to an outer contour the shovel runs.
Die erfindungsgemäße Gasturbinenschaufel weist somit den Vorteil auf, dass sich zwischen benachbarten Formen kein in axialer Richtung der Gasturbine verlaufender Spalt auftritt. Durch die Konturierung der Kontaktflächen der einzelnen Plattformen wird die Gasströmung durch den Spalt vielmehr in derselben Richtung geführt, wie die an der Oberfläche der Schaufel vorbeigeführte Gasströmung und/oder in Richtung der lokalen Gasströmung entlang der Plattform. Hierdurch ergibt sich eine erhebliche Verbesserung des aerodynamischen Wirkungsgrades der Gasturbine.The Gas turbine blade according to the invention thus has the advantage that between adjacent forms no in axial direction of the gas turbine extending gap occurs. By the contouring of the contact surfaces of each platform is the gas flow through the gap rather in the same direction led, like those on the surface of the blade bypassed gas flow and / or in the direction the local gas flow along the platform. hereby results in a significant improvement in aerodynamic efficiency the gas turbine.
Erfindungsgemäß ist es besonders günstig, wenn die Außenkontur in Richtung einer flächennahen Strömung der Schaufel verläuft. Hierbei ist es insbesondere in einer radialen Draufsicht auf die Schaufel besonders günstig, wenn die Außenkontur im Wesentlichen parallel zu der plattformnahem Kontur des Schaufelblattes verläuft.According to the invention it is particularly favorable when the outer contour in Direction of a near-surface flow of the blade runs. Here it is in particular in a radial Top view of the blade particularly favorable when the Outer contour substantially parallel to the platform-near Contour of the airfoil runs.
Erfindungsgemäß kann die Kontur der Plattform durch Fräsen erfolgen, es ist jedoch auch möglich, diese auf andere Weise, beispielsweise durch ein EDM-Verfahren (Electrical Discharge Machining/Funkenerodieren) oder durch ein Gussverfahren oder durch Schleifen zu erzeugen.According to the invention the contour of the platform is done by milling, it is however, it is possible to do so in other ways, for example by an EDM process (Electrical Discharge Machining) or by a casting process or by grinding.
Im Folgenden wird die Erfindung anhand eines Ausführungsbeispiels in Verbindung mit der Zeichnung beschrieben. Dabei zeigt:in the The invention is based on an embodiment described in conjunction with the drawing. Showing:
Die
Die
Darstellung der
Die
Mit
dem Bezugszeichen
- 11
- Plattformplatform
- 22
- Schaufelblattairfoil
- 33
- Fußfoot
- 44
- Scheibedisc
- 55
- Kante/AußenkonturEdge / outer contour
- 66
- Spaltgap
- 77
- GasströmungslinieGas flow line
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 4300868 A [0003] US 4300868 A [0003]
- - EP 0536927 B1 [0003] - EP 0536927 B1 [0003]
- - DE 102004029696 A1 [0003] - DE 102004029696 A1 [0003]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007039175A DE102007039175A1 (en) | 2007-08-20 | 2007-08-20 | Gas turbine blade i.e. compressor blade, has platforms supporting turbine blade and connected with disk, where outer contour of one platform runs parallel to outer contour of turbine blade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007039175A DE102007039175A1 (en) | 2007-08-20 | 2007-08-20 | Gas turbine blade i.e. compressor blade, has platforms supporting turbine blade and connected with disk, where outer contour of one platform runs parallel to outer contour of turbine blade |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007039175A1 true DE102007039175A1 (en) | 2009-07-02 |
Family
ID=40690636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007039175A Withdrawn DE102007039175A1 (en) | 2007-08-20 | 2007-08-20 | Gas turbine blade i.e. compressor blade, has platforms supporting turbine blade and connected with disk, where outer contour of one platform runs parallel to outer contour of turbine blade |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007039175A1 (en) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2112636A1 (en) * | 1970-03-16 | 1971-10-07 | Aerojet General Co | Process for making hollow compressor blades |
DE2144595A1 (en) * | 1970-12-11 | 1972-06-22 | Gen Electric | Cooled turbine blade |
US4300868A (en) | 1978-11-25 | 1981-11-17 | Rolls-Royce Limited | Nozzle guide vane assembly for a gas turbine engine |
EP0536927B1 (en) | 1991-10-09 | 1995-10-25 | ROLLS-ROYCE plc | Turbine blade shroud assembly |
DE19520274A1 (en) * | 1995-06-02 | 1996-12-05 | Abb Management Ag | Device and method for assembling rotor blades |
DE69703591T2 (en) * | 1996-01-23 | 2001-05-31 | Snecma Moteurs Paris | Fan rotor blade with a safety profile |
DE10346384A1 (en) * | 2003-09-29 | 2005-04-28 | Rolls Royce Deutschland | Turbine blade ring has blade platform with recess for straight damping element formed in center straight section of side faces, and straight or curved recesses for sealing elements in adjoining straight or curved side face sections |
DE102004029696A1 (en) | 2004-06-15 | 2006-01-05 | Rolls-Royce Deutschland Ltd & Co Kg | Platform cooling arrangement for the vane ring of a gas turbine |
WO2007012590A1 (en) * | 2005-07-25 | 2007-02-01 | Siemens Aktiengesellschaft | Cooled turbine blade for a gas turbine and use of such a turbine blade |
-
2007
- 2007-08-20 DE DE102007039175A patent/DE102007039175A1/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2112636A1 (en) * | 1970-03-16 | 1971-10-07 | Aerojet General Co | Process for making hollow compressor blades |
DE2144595A1 (en) * | 1970-12-11 | 1972-06-22 | Gen Electric | Cooled turbine blade |
US4300868A (en) | 1978-11-25 | 1981-11-17 | Rolls-Royce Limited | Nozzle guide vane assembly for a gas turbine engine |
EP0536927B1 (en) | 1991-10-09 | 1995-10-25 | ROLLS-ROYCE plc | Turbine blade shroud assembly |
DE19520274A1 (en) * | 1995-06-02 | 1996-12-05 | Abb Management Ag | Device and method for assembling rotor blades |
DE69703591T2 (en) * | 1996-01-23 | 2001-05-31 | Snecma Moteurs Paris | Fan rotor blade with a safety profile |
DE10346384A1 (en) * | 2003-09-29 | 2005-04-28 | Rolls Royce Deutschland | Turbine blade ring has blade platform with recess for straight damping element formed in center straight section of side faces, and straight or curved recesses for sealing elements in adjoining straight or curved side face sections |
DE102004029696A1 (en) | 2004-06-15 | 2006-01-05 | Rolls-Royce Deutschland Ltd & Co Kg | Platform cooling arrangement for the vane ring of a gas turbine |
WO2007012590A1 (en) * | 2005-07-25 | 2007-02-01 | Siemens Aktiengesellschaft | Cooled turbine blade for a gas turbine and use of such a turbine blade |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2642038C2 (en) | Blade for flow machines | |
DE69934737T2 (en) | Low loaded shroud segment for a turbine | |
DE102006048933A1 (en) | Arrangement for influencing the flow | |
EP3467261B1 (en) | Method for producing a tandem stator blade segment | |
DE102012015135A1 (en) | Compressor blade of a gas turbine and process for their preparation | |
DE602004007071T2 (en) | Blade platforms with elastic side edges | |
EP3093372A2 (en) | Coating method for producing a combination of armor plating for a blade tip and erosion resistant coating | |
DE3148985A1 (en) | ROTOR ASSEMBLY AND PROVIDED LOCKING DEVICE | |
DE102016222720A1 (en) | Sealing system for an axial flow machine and axial flow machine | |
DE102007004743A1 (en) | Sealant arrangement for turbomachine i.e. gas turbine, has sealing bodies including projections that are distributed over circumference, where projections extend into flow chamber, and rotor-sided sealing body formed as sealing fin | |
EP2282014A1 (en) | Ring-shaped flow channel section for a turbo engine | |
DE102015217670A1 (en) | Sealing element, sealing system with a sealing element, turbomachine with a sealing system and method for producing a sealing element | |
DE102017204243A1 (en) | Dichtfin with at least one curved side edge | |
DE102009007843A1 (en) | Compressor wheel for exhaust gas turbocharger, has split blades arranged between two consecutive complete blades, where blade periods comprise four blades such as one complete blade and three split blades | |
DE60201325T2 (en) | High pressure turbine blade with cooled trailing edge | |
DE102010032097A1 (en) | Compressor blade of a gas turbine engine with self-sharpening leading edge structure | |
EP3628030A1 (en) | Method for maintaining a turbomachine | |
EP3087254B1 (en) | Component that can be charged with hot gas for a gas turbine and sealing assembly with such a component | |
EP2860356B1 (en) | Flow engine | |
DE102016114552A1 (en) | Harvesting knife and method for its production | |
DE102007039175A1 (en) | Gas turbine blade i.e. compressor blade, has platforms supporting turbine blade and connected with disk, where outer contour of one platform runs parallel to outer contour of turbine blade | |
DE102014212652A1 (en) | flow machine | |
EP3623576B1 (en) | Gas turbine rotor blade | |
DE102017109952A1 (en) | Rotor device of a turbomachine | |
DE102012001989B4 (en) | Method for mechanical edge zone consolidation of components |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20140821 |