FR3109403B1 - Dawn with improved sealing components - Google Patents

Dawn with improved sealing components Download PDF

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Publication number
FR3109403B1
FR3109403B1 FR2003843A FR2003843A FR3109403B1 FR 3109403 B1 FR3109403 B1 FR 3109403B1 FR 2003843 A FR2003843 A FR 2003843A FR 2003843 A FR2003843 A FR 2003843A FR 3109403 B1 FR3109403 B1 FR 3109403B1
Authority
FR
France
Prior art keywords
bearing surface
blade
platform
cavity
sealing element
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
FR2003843A
Other languages
French (fr)
Other versions
FR3109403A1 (en
Inventor
Patrice Jean-Marc Rosset
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 FR2003843A priority Critical patent/FR3109403B1/en
Publication of FR3109403A1 publication Critical patent/FR3109403A1/en
Application granted granted Critical
Publication of FR3109403B1 publication Critical patent/FR3109403B1/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
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/005—Sealing means between non relatively rotating elements
    • F01D11/006—Sealing the gap between rotor blades or blades and rotor
    • 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
    • F05D2240/55—Seals
    • 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
    • F05D2250/20—Three-dimensional
    • F05D2250/23—Three-dimensional prismatic
    • F05D2250/231—Three-dimensional prismatic cylindrical
    • 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
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise

Landscapes

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

Abstract

L’invention concerne un ensemble de turbine comprenant un disque de rotor s’étendant autour d’un axe (AX) portant à sa périphérie au moins une première (16) et une deuxième aube adjacentes et un élément d’étanchéité (38), et dans lequel : – chaque aube (16) comprend un pied (17) prolongé par une échasse (18) terminée par une plateforme (19) ; – l’élément d’étanchéité (38) est monté dans une cavité qui s’étend radialement sous les plateformes (19) des première et deuxième aube (16, 16’) et circonférentiellement entre les échasses (18) des deux aubes (16) ; – la plateforme (19) de la première aube (16) comporte une portée primaire, et la plateforme (19) de la deuxième aube (16’) comporte une portée secondaire s’étendant l’une et l’autre dans la cavité, la portée secondaire étant inclinée et circonférentiellement en regard par rapport à la portée primaire (41) ; – l’élément d’étanchéité (38) est un élément cylindrique disposé dans la cavité et est plaqué par effet centrifuge contre les portées primaire et secondaire (41). Figure pour l’abrégé : Figure 3The invention relates to a turbine assembly comprising a rotor disc extending around an axis (AX) carrying at its periphery at least one first (16) and one second adjacent vane and a sealing element (38), and in which: - each blade (16) comprises a foot (17) extended by a stilt (18) terminated by a platform (19); – the sealing element (38) is mounted in a cavity which extends radially under the platforms (19) of the first and second blades (16, 16') and circumferentially between the stilts (18) of the two blades (16 ); – the platform (19) of the first blade (16) comprises a primary bearing surface, and the platform (19) of the second blade (16') comprises a secondary bearing surface both extending into the cavity, the secondary bearing surface being inclined and circumferentially facing with respect to the primary bearing surface (41); – the sealing element (38) is a cylindrical element arranged in the cavity and is pressed by centrifugal effect against the primary and secondary bearing surfaces (41). Figure for abstract: Figure 3

FR2003843A 2020-04-16 2020-04-16 Dawn with improved sealing components Active FR3109403B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2003843A FR3109403B1 (en) 2020-04-16 2020-04-16 Dawn with improved sealing components

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2003843 2020-04-16
FR2003843A FR3109403B1 (en) 2020-04-16 2020-04-16 Dawn with improved sealing components

Publications (2)

Publication Number Publication Date
FR3109403A1 FR3109403A1 (en) 2021-10-22
FR3109403B1 true FR3109403B1 (en) 2022-08-12

Family

ID=71111606

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2003843A Active FR3109403B1 (en) 2020-04-16 2020-04-16 Dawn with improved sealing components

Country Status (1)

Country Link
FR (1) FR3109403B1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912223A (en) * 1955-03-17 1959-11-10 Gen Electric Turbine bucket vibration dampener and sealing assembly
GB2127104A (en) * 1982-08-11 1984-04-04 Rolls Royce Sealing means for a turbine rotor blade in a gas turbine engine
FR2726323B1 (en) * 1994-10-26 1996-12-13 Snecma ASSEMBLY OF A ROTARY DISC AND BLADES, ESPECIALLY USED IN A TURBOMACHINE
EP1124038A1 (en) * 2000-02-09 2001-08-16 Siemens Aktiengesellschaft Turbine blading
US8790086B2 (en) * 2010-11-11 2014-07-29 General Electric Company Turbine blade assembly for retaining sealing and dampening elements
US8905715B2 (en) * 2011-03-17 2014-12-09 General Electric Company Damper and seal pin arrangement for a turbine blade
US20140271205A1 (en) * 2013-03-12 2014-09-18 Solar Turbines Incorporated Turbine blade pin seal

Also Published As

Publication number Publication date
FR3109403A1 (en) 2021-10-22

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