EP1426560A1 - Dichtung für den Niederdruckverdichter eines Flugtriebwerks - Google Patents

Dichtung für den Niederdruckverdichter eines Flugtriebwerks Download PDF

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Publication number
EP1426560A1
EP1426560A1 EP02447237A EP02447237A EP1426560A1 EP 1426560 A1 EP1426560 A1 EP 1426560A1 EP 02447237 A EP02447237 A EP 02447237A EP 02447237 A EP02447237 A EP 02447237A EP 1426560 A1 EP1426560 A1 EP 1426560A1
Authority
EP
European Patent Office
Prior art keywords
seal
drum
housing
joint
elastomer 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.)
Granted
Application number
EP02447237A
Other languages
English (en)
French (fr)
Other versions
EP1426560B1 (de
Inventor
André Lhoest
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 Aero Boosters SA
Original Assignee
Techspace Aero SA
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 Techspace Aero SA filed Critical Techspace Aero SA
Priority to DE2002613621 priority Critical patent/DE60213621T2/de
Priority to EP20020447237 priority patent/EP1426560B1/de
Publication of EP1426560A1 publication Critical patent/EP1426560A1/de
Application granted granted Critical
Publication of EP1426560B1 publication Critical patent/EP1426560B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/083—Sealings especially adapted for elastic fluid pumps
    • 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

Definitions

  • the present invention relates to a new seal designed to seal a speaker in the booster or low-pressure compressor of an engine turbofan type single or double flow (turbofan).
  • the invention applies whenever a tightness is required in the speakers of a turbomachine, especially at the level of a record of blower.
  • the assembly of the joint sealing is ensured by bolting a piece of joint metal 5 on a specific flange 4 associated with the drum 2.
  • the deformations to which such a flange is subject in operation involve a great requirement flexibility for it. So is she usually performed "lace".
  • the realization of this flange involves massive piece machining with additional important matter and therefore also cost supplement.
  • the bolted joint involves the realization of holes in the joint, usually made of aluminum and in the flange, which decreases the life of these rooms.
  • the present invention aims to provide a solution that is both free from the disadvantages of state of the art and alternative to the solution already proposed by the Applicant.
  • the present invention relates to a device seal for a pressurized pressure vessel low pressure belonging to a turbomachine engine, preferably a turbojet or turbofan, comprising a seal ensuring a tight contact between the inner part drum supporting the blades of the stages of primary stream compression and rotating disk supporting the rotating vanes of the fan, at the level of a first end of the seal, characterized in that said seal is held at the drum in a housing thereof, an elastomeric member being molded on a second end of the seal to fit the form of said housing.
  • the elastomer element is symmetrical with revolution and concentric with the housing practiced in the drum.
  • the elastomer element is constructed so that it can be compressed by mounting in said housing. The seal is therefore centered without it is subject to constraints.
  • the housing is made in a flange integral with the drum.
  • the elastomeric element is a silicone element.
  • the seal may be made of a metal or an alloy light metal, preferably aluminum.
  • Figure 1 already mentioned above, represents an axial sectional view for a shape of execution of a sealing device according to the state of the technical.
  • Figure 2 shows a perspective view for one embodiment of a sealing device according to the invention.
  • Figure 3 shows a sectional view axis corresponding to the sealing device of the figure 2.
  • the idea behind the present invention is to make a joint that does not play the role of element resilient and therefore not subject to constraints important.
  • the new seal device is shown in FIGS. 2 and 3.
  • the drum 2 comprises a first part of joint 15 shown in Figure 2, which is notched and which has notches 8 allowing the exceeding the fan blades at their level heels 10.
  • the support of the drum 2 on the fan disk 1 is at the level of the excrescences 9 and a second part of joint 5.
  • the second part of joint 5 is metal, for example aluminum. It is maintained place by its position sandwiched between the fan disc 1, at level of its curved end 6 and the drum 2 without a bridle but in which a dwelling 7 has been machined to accommodate the other end 6 'of the seal 5.
  • the metal part 5 of the seal at this end is then trapped in an elastomer such as silicone filling the housing 7.
  • the elastomer is so molded into the drum housing 2, around end 6 'of the metal seal 5 and constitutes the first part of the joint 15.
  • An advantage of the present invention lies in the fact that, given the abandonment of the effect "spring", the metal part of the joint undergoes almost no more constraint and can therefore be made of a common metal such as aluminum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Gasket Seals (AREA)
EP20020447237 2002-12-03 2002-12-03 Dichtung für den Niederdruckverdichter eines Flugtriebwerks Expired - Lifetime EP1426560B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2002613621 DE60213621T2 (de) 2002-12-03 2002-12-03 Dichtung für den Niederdruckverdichter eines Flugtriebwerks
EP20020447237 EP1426560B1 (de) 2002-12-03 2002-12-03 Dichtung für den Niederdruckverdichter eines Flugtriebwerks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020447237 EP1426560B1 (de) 2002-12-03 2002-12-03 Dichtung für den Niederdruckverdichter eines Flugtriebwerks

Publications (2)

Publication Number Publication Date
EP1426560A1 true EP1426560A1 (de) 2004-06-09
EP1426560B1 EP1426560B1 (de) 2006-08-02

Family

ID=32309545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020447237 Expired - Lifetime EP1426560B1 (de) 2002-12-03 2002-12-03 Dichtung für den Niederdruckverdichter eines Flugtriebwerks

Country Status (2)

Country Link
EP (1) EP1426560B1 (de)
DE (1) DE60213621T2 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2596115A1 (fr) * 1986-03-21 1987-09-25 Rolls Royce Perfectionnement aux moyens de retenue
US4968854A (en) * 1988-11-10 1990-11-06 Vanguard Products Corporation Dual elastomer gasket shield for electronic equipment
US4982889A (en) * 1989-08-09 1991-01-08 Union Carbide Corporation Floating dual direction seal assembly
CH681043A5 (en) * 1989-07-13 1992-12-31 Balzers Hochvakuum Sealing element with light metal support - has elastomer sealing body forming compound unit with support.
FR2695164A1 (fr) * 1992-08-26 1994-03-04 Snecma Turbomachine munie d'un dispositif empêchant une circulation longitudinale de gaz autour des étages d'aubes de redressement.
EP0691455A1 (de) * 1994-07-06 1996-01-10 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Metallisches Spaltdichtungselement und eine Gasturbine mit diesem Element
EP1262695A1 (de) * 2001-05-30 2002-12-04 Techspace aero Dichtende Verbindungsplatte

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2596115A1 (fr) * 1986-03-21 1987-09-25 Rolls Royce Perfectionnement aux moyens de retenue
US4968854A (en) * 1988-11-10 1990-11-06 Vanguard Products Corporation Dual elastomer gasket shield for electronic equipment
CH681043A5 (en) * 1989-07-13 1992-12-31 Balzers Hochvakuum Sealing element with light metal support - has elastomer sealing body forming compound unit with support.
US4982889A (en) * 1989-08-09 1991-01-08 Union Carbide Corporation Floating dual direction seal assembly
FR2695164A1 (fr) * 1992-08-26 1994-03-04 Snecma Turbomachine munie d'un dispositif empêchant une circulation longitudinale de gaz autour des étages d'aubes de redressement.
EP0691455A1 (de) * 1994-07-06 1996-01-10 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Metallisches Spaltdichtungselement und eine Gasturbine mit diesem Element
EP1262695A1 (de) * 2001-05-30 2002-12-04 Techspace aero Dichtende Verbindungsplatte

Also Published As

Publication number Publication date
EP1426560B1 (de) 2006-08-02
DE60213621T2 (de) 2007-03-08
DE60213621D1 (de) 2006-09-14

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