FR3123702B1 - Systeme d’etancheite hydraulique a alimentation par levre - Google Patents

Systeme d’etancheite hydraulique a alimentation par levre Download PDF

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Publication number
FR3123702B1
FR3123702B1 FR2105906A FR2105906A FR3123702B1 FR 3123702 B1 FR3123702 B1 FR 3123702B1 FR 2105906 A FR2105906 A FR 2105906A FR 2105906 A FR2105906 A FR 2105906A FR 3123702 B1 FR3123702 B1 FR 3123702B1
Authority
FR
France
Prior art keywords
lip
shaft
seal system
hydraulic seal
peripheral edge
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
FR2105906A
Other languages
English (en)
Other versions
FR3123702A1 (fr
Inventor
Jean-Pierre Pajard
Yannick Cazaux
Mathieu Jean-Baptiste Marsaudon
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 Helicopter Engines SAS
Original Assignee
Safran Helicopter 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 Helicopter Engines SAS filed Critical Safran Helicopter Engines SAS
Priority to FR2105906A priority Critical patent/FR3123702B1/fr
Publication of FR3123702A1 publication Critical patent/FR3123702A1/fr
Application granted granted Critical
Publication of FR3123702B1 publication Critical patent/FR3123702B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F16J15/42—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by centrifugal force
    • 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
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/447—Labyrinth packings
    • F16J15/4472—Labyrinth packings with axial path

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Sealing Devices (AREA)

Abstract

L’invention concerne un système d'étanchéité (38) entre des premier et second arbres (34, 36) coaxiaux comportant un dispositif d’étanchéité hydraulique (44) comprenant une cuvette annulaire (46) de section en U portée par le second arbre (36), une lèvre annulaire externe (48) portée par le premier arbre (34) et dont un bord périphérique est logé dans ladite cuvette (46), et un circuit d’alimentation (58) en huile de la lèvre, caractérisé en ce que ledit circuit (58) comprend au moins une canalisation d’huile radiale (64) qui est formée dans la lèvre annulaire (48) et qui débouche sur son bord périphérique (50), et un conduit d’alimentation (66), qui est formé dans le premier arbre (34), et qui communique avec ladite canalisation (64). Figure pour l'abrégé : Figure 4.
FR2105906A 2021-06-04 2021-06-04 Systeme d’etancheite hydraulique a alimentation par levre Active FR3123702B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2105906A FR3123702B1 (fr) 2021-06-04 2021-06-04 Systeme d’etancheite hydraulique a alimentation par levre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2105906A FR3123702B1 (fr) 2021-06-04 2021-06-04 Systeme d’etancheite hydraulique a alimentation par levre
FR2105906 2021-06-04

Publications (2)

Publication Number Publication Date
FR3123702A1 FR3123702A1 (fr) 2022-12-09
FR3123702B1 true FR3123702B1 (fr) 2023-04-28

Family

ID=76807833

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2105906A Active FR3123702B1 (fr) 2021-06-04 2021-06-04 Systeme d’etancheite hydraulique a alimentation par levre

Country Status (1)

Country Link
FR (1) FR3123702B1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2823052A (en) * 1954-04-12 1958-02-11 Gen Motors Corp Fluid seal device
FR2621970A1 (fr) 1987-10-20 1989-04-21 Hebert Michel Dispositif d'etancheite dynamique par corps centrifuge
DE19916803A1 (de) 1999-04-14 2000-10-19 Rolls Royce Deutschland Hydraulische Dichtungsanordnung insbesondere an einer Gasturbine
GB0623705D0 (en) * 2006-11-28 2007-01-10 Cummins Turbo Tech Ltd Hydraulic for a turbocharger
US9157532B2 (en) 2012-12-06 2015-10-13 Rolls-Royce Plc Hydraulic seal arrangement
FR3068079B1 (fr) 2017-06-27 2019-08-23 Safran Helicopter Engines Dispositif de joint hydraulique a amorcage ameliore
GB201717431D0 (en) * 2017-10-24 2017-12-06 Rolls Royce Plc Hydraulic seal arrangement

Also Published As

Publication number Publication date
FR3123702A1 (fr) 2022-12-09

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