FR3087484B1 - TURBOMACHINE DAWN - Google Patents

TURBOMACHINE DAWN Download PDF

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Publication number
FR3087484B1
FR3087484B1 FR1859650A FR1859650A FR3087484B1 FR 3087484 B1 FR3087484 B1 FR 3087484B1 FR 1859650 A FR1859650 A FR 1859650A FR 1859650 A FR1859650 A FR 1859650A FR 3087484 B1 FR3087484 B1 FR 3087484B1
Authority
FR
France
Prior art keywords
blade
radially
radially outer
platform
foot
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.)
Active
Application number
FR1859650A
Other languages
French (fr)
Other versions
FR3087484A1 (en
Inventor
Bruno Marc-Etienne Loisel
Alexandre Thanh Nhan Nguyen
Nicolas Marc Florent
Marion France Chambre
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.)
Safran Aircraft Engines SAS
Original Assignee
Safran Aircraft Engines SAS
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 Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR1859650A priority Critical patent/FR3087484B1/en
Publication of FR3087484A1 publication Critical patent/FR3087484A1/en
Application granted granted Critical
Publication of FR3087484B1 publication Critical patent/FR3087484B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • 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
    • 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
    • F05D2250/20—Three-dimensional
    • F05D2250/23—Three-dimensional prismatic
    • F05D2250/231—Three-dimensional prismatic cylindrical

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une aube (1) de turbomachine comportant une pale (2) s'étendant selon une direction dite radiale, l'extrémité radialement externe (2a) de la pale (2) étant prolongée par une plate-forme radialement externe (3), l'extrémité radialement interne (2b) de la pale (2) étant prolongée par une plate-forme radialement interne (4) et par un pied (5) destiné à être monté dans un alvéole d'un disque, caractérisée en ce que le pied (5) présente une partie radialement externe adjacente à la plate-forme interne (4) et à la pale (2) et une partie radialement interne opposée, la partie radialement externe présentant une forme de portion de cylindre dont la surface est convexe.The invention relates to a turbine engine blade (1) comprising a blade (2) extending in a so-called radial direction, the radially outer end (2a) of the blade (2) being extended by a radially outer platform ( 3), the radially internal end (2b) of the blade (2) being extended by a radially internal platform (4) and by a foot (5) intended to be mounted in a cell of a disc, characterized in that the foot (5) has a radially outer part adjacent to the inner platform (4) and to the blade (2) and a radially inner part opposite, the radially outer part having the shape of a cylinder portion whose surface is convex.

FR1859650A 2018-10-18 2018-10-18 TURBOMACHINE DAWN Active FR3087484B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1859650A FR3087484B1 (en) 2018-10-18 2018-10-18 TURBOMACHINE DAWN

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1859650A FR3087484B1 (en) 2018-10-18 2018-10-18 TURBOMACHINE DAWN

Publications (2)

Publication Number Publication Date
FR3087484A1 FR3087484A1 (en) 2020-04-24
FR3087484B1 true FR3087484B1 (en) 2021-01-15

Family

ID=65244334

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1859650A Active FR3087484B1 (en) 2018-10-18 2018-10-18 TURBOMACHINE DAWN

Country Status (1)

Country Link
FR (1) FR3087484B1 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR485943A (en) * 1917-01-24 1918-02-20 App Rateau Soc D Expl Des Fin fixing device for steam or gas turbines
US2656146A (en) * 1948-04-08 1953-10-20 Curtiss Wright Corp Turbine blade construction
IT454293A (en) * 1948-04-22
FR1262551A (en) * 1949-11-22 1961-06-05 Hollow vane for fluid flow machines
GB709636A (en) * 1951-05-09 1954-06-02 Rolls Royce Improvements in or relating to compressor and turbine bladed rotors
EP1953345A1 (en) * 2007-02-02 2008-08-06 Siemens Aktiengesellschaft Blade ring for a turbo engine
FR2961845B1 (en) 2010-06-28 2013-06-28 Snecma Propulsion Solide TURBOMACHINE DAWN WITH COMPLEMENTARY PAIRE / IMPAIRE GEOMETRY AND METHOD OF MANUFACTURING THE SAME
FR2983899B1 (en) * 2011-12-13 2014-02-07 Snecma ROTOR OF GAS TURBINE WITH BALANCING MASSES
FR3004484B1 (en) * 2013-04-11 2017-09-08 Snecma TURBOMACHINE DAWN COOPERATING WITH AUBES RETENTION DISC
EP3239469B1 (en) * 2014-11-20 2019-01-09 Rolls-Royce North American Technologies, Inc. Composite blades for gas turbine engines

Also Published As

Publication number Publication date
FR3087484A1 (en) 2020-04-24

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