DE391880C - Blade attachment for gas turbines with combustion air passed through the turbine blades - Google Patents

Blade attachment for gas turbines with combustion air passed through the turbine blades

Info

Publication number
DE391880C
DE391880C DEL54650D DEL0054650D DE391880C DE 391880 C DE391880 C DE 391880C DE L54650 D DEL54650 D DE L54650D DE L0054650 D DEL0054650 D DE L0054650D DE 391880 C DE391880 C DE 391880C
Authority
DE
Germany
Prior art keywords
combustion air
gas turbines
blade attachment
turbine blades
air passed
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.)
Expired
Application number
DEL54650D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEL54650D priority Critical patent/DE391880C/en
Application granted granted Critical
Publication of DE391880C publication Critical patent/DE391880C/en
Expired legal-status Critical Current

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
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/187—Convection cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

DEUTSCHES REICHGERMAN EMPIRE

AUSGEGEBEN
AM29.JULI1924ISSUED
AM JULY 29, 1924

REICHSPATENTAMTREICH PATENT OFFICE

PATENTSCHRIFTPATENT LETTERING

-JVl 391880 -KLASSE 46f GRUPPE - JVl 391880 - CLASS 46f GROUP

(L 54650 HjSJ)(L 54650 HjSJ)

Christian Loreiizeti in Neukölln.Christian Loreiizeti in Neukölln.

Zusatz zum Fktent 343982.Addition to Fktent 343982.

Patentiert im Deutschen Reiche vom 14. Mai 1921 ab. Längste Dauer: 15. Januar 1939. Patented in the German Empire on May 14, 1921 . Longest duration: January 15, 1939.

Die nach, dem Haüptpatent hergestellten dünnwandigem Schaufeln lassen eine Befestigung im Turbinenrad in der bisiher bekannten Weise, nämlich, mittels Nuten in den Schaufelfüßen oder mittels aus dem Baustoff der Schaufeln allein gebildeter Wulste an den Schaufelfüßen nicht zu.The ones manufactured according to the main patent Thin-walled blades allow an attachment in the turbine wheel in the previously known Way, namely, by means of grooves in the blade roots or by means of the building material the blades alone formed bulges on the blade roots not.

Gemäß der {Erfindung werden nun solche Schaufeln durch Hinzufügung von zusätzlichem· Metall, das den Schaufelfuß ringförmig umfaßt, mit .einem Rand versehen, der eine sichere Befestigung im Turbinenrad gewährleistet. Die Befestigung dieses umfassenden Randes kann durch Schweißen, Löten oder Umbördelung erfolgen,, so daß der Baustoff am Schaufelfuß ungeschwächt bleibt.According to the invention, such blades are now by adding additional · Metal, which surrounds the blade root in the shape of a ring, provided with .einem edge, the one secure attachment in the turbine wheel guaranteed. The attachment of this comprehensive Edge can be done by welding, soldering or flanging, so that the building material remains unaffected at the blade root.

In der Zeichnung sind zwei Ausführungsbeispiele dargestellt, die zur besseren Verständigung im vergrößerten Maßstab gezeichnet sind.In the drawing, two exemplary embodiments are shown, for better understanding are drawn on an enlarged scale.

In Abb. ι ist eine Schaufel im Schnitt dargestellt, 'in der das; Blech des Sdhaufelfußes um einen tfat timfasiSeniden. Ring tanigeiioBdelt ist.In Fig. Ι a blade is shown in section, 'in which the; Sheet metal of the foot of the mountain around a tfat timfasiSeniden. Ring is tanigeiioBdelt.

In Abb. a ist eine Schaufel im Sefcciitt gezeichnet, in dem ein Verstänkaögsrandl im Schaufelfuß .angeschweißt oder angelötet ist.In Fig.a a shovel is drawn in sefcciitt, in which a Verstänkaögsrandl in Blade foot. Is welded or soldered on.

In beiden Fällen ist die Schaufel mit a be-In both cases the blade is loaded with a

301880301880

zeichnet. Durch den hohlraum b tritt die Arbeitsluft hindurch. Der Fuß der Schaufel ist durch einen ihn umfassenden Ring c 'hindurchgeführt. In Abb. 2 ist dieser Ring c mit dem Schaufelfuß -durch Schweißen oder Löten verbunden, wobei zweckmäßig der unterste Rand des Sdhaufelfußbleches etwas umgeböridelt wird.draws. The working air passes through the cavity b. The foot of the shovel is passed through a ring c 'surrounding it. In Fig. 2, this ring c is connected to the blade root by welding or soldering, with the lowermost edge of the blade root plate being suitably crimped slightly.

In Abb. ι ist das Blech des Schaufelfußes lediglich um den ihn umfassenden Ring c umgebördelt, so daß ein vorspringender Rand entsteht. Diese Umbördelung wird in eine entsprechende Nut im Kraftrad rf eingelegt. Tritt bei Inbetriebsetzung der Turbine die Schleuderkraft auf, so legen sich die Schaufeln mit starkem Druck gegen die Auflegefläche e im Kraftrad rf, wodurch der äußere Rand der Bördelung festgeklemmt wird. Ein Zurückgehen oder Strecken des Baustoffes wird hierdurch verhindert, ohne daß ein Schweißen oder Löten erforderlich wird.In Fig. Ι the sheet metal of the blade root is only beaded around the ring c surrounding it, so that a protruding edge is created. This bead is inserted into a corresponding groove in the motorcycle rf. If the centrifugal force occurs when the turbine is started up, the blades lie with strong pressure against the contact surface e in the motorcycle rf, whereby the outer edge of the flange is clamped. This prevents the building material from retreating or stretching without the need for welding or soldering.

Claims (1)

Patent-Anspruch :Patent claim: Schaufelbefestigung für · Gasturbinen mit durch die hohlen Schaufeln hindurchgeführter Verbrennungsluft nach Patent 343982, dadurch gekennzeichnet, daß die hohlen Schaufelfüße durch sie umfassende Ringe (c) verstärkt sind, die durch Bördein, Schweißen, Löten oder andere Befestigungsweisen mit dem Fuß verbunden sind und in eine entsprechende Nut des Laufrades passen.Blade attachment for · gas turbines with through the hollow blades Combustion air according to patent 343982, characterized in that the hollow blade roots are reinforced by rings (c) surrounding them, which are formed by flanges, Welding, soldering or other fastening methods are connected to the foot and in a corresponding groove of the Fit the impeller. Abb. i.Fig.i. Abb. 2.Fig. 2.
DEL54650D 1921-05-14 1921-05-14 Blade attachment for gas turbines with combustion air passed through the turbine blades Expired DE391880C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL54650D DE391880C (en) 1921-05-14 1921-05-14 Blade attachment for gas turbines with combustion air passed through the turbine blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL54650D DE391880C (en) 1921-05-14 1921-05-14 Blade attachment for gas turbines with combustion air passed through the turbine blades

Publications (1)

Publication Number Publication Date
DE391880C true DE391880C (en) 1924-07-29

Family

ID=7276332

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL54650D Expired DE391880C (en) 1921-05-14 1921-05-14 Blade attachment for gas turbines with combustion air passed through the turbine blades

Country Status (1)

Country Link
DE (1) DE391880C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE834475C (en) * 1950-05-09 1952-03-20 Maschf Augsburg Nuernberg Ag Temperature-independent connection of ceramic blades with a hammer-head-like foot with metallic parts of the impeller of centrifugal machines, especially gas turbines
US2641440A (en) * 1947-11-18 1953-06-09 Chrysler Corp Turbine blade with cooling means and carrier therefor
DE1049872B (en) * 1953-06-04 1954-02-05
US2717554A (en) * 1949-05-19 1955-09-13 Edward A Stalker Fluid machine rotor and stator construction
DE942236C (en) * 1952-02-13 1956-04-26 Escher Wyss Gmbh Device for attaching blades to axially flowed turbo machines, in particular gas turbines
US2767460A (en) * 1950-02-08 1956-10-23 Robbins Engineering Company Turbine blade and method of making same
DE968525C (en) * 1952-09-12 1958-02-27 Napier & Son Ltd Centrifugal machine hollow blade

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641440A (en) * 1947-11-18 1953-06-09 Chrysler Corp Turbine blade with cooling means and carrier therefor
US2717554A (en) * 1949-05-19 1955-09-13 Edward A Stalker Fluid machine rotor and stator construction
US2767460A (en) * 1950-02-08 1956-10-23 Robbins Engineering Company Turbine blade and method of making same
DE834475C (en) * 1950-05-09 1952-03-20 Maschf Augsburg Nuernberg Ag Temperature-independent connection of ceramic blades with a hammer-head-like foot with metallic parts of the impeller of centrifugal machines, especially gas turbines
DE942236C (en) * 1952-02-13 1956-04-26 Escher Wyss Gmbh Device for attaching blades to axially flowed turbo machines, in particular gas turbines
DE968525C (en) * 1952-09-12 1958-02-27 Napier & Son Ltd Centrifugal machine hollow blade
DE1049872B (en) * 1953-06-04 1954-02-05

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