RU2007121952A - ASPIRATION LABYRINTH SEAL - Google Patents
ASPIRATION LABYRINTH SEAL Download PDFInfo
- Publication number
- RU2007121952A RU2007121952A RU2007121952/06A RU2007121952A RU2007121952A RU 2007121952 A RU2007121952 A RU 2007121952A RU 2007121952/06 A RU2007121952/06 A RU 2007121952/06A RU 2007121952 A RU2007121952 A RU 2007121952A RU 2007121952 A RU2007121952 A RU 2007121952A
- Authority
- RU
- Russia
- Prior art keywords
- sealing
- sealing surface
- assembly according
- seal
- primary
- Prior art date
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
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
- F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
- F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
- F16J15/342—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities with means for feeding fluid directly to the face
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/28—Arrangement of seals
-
- 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
- F16J15/4476—Labyrinth packings with radial path
-
- 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
- F05D2250/70—Shape
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1. Уплотнительный узел, расположенный вокруг оси газотурбинного двигателя, содержащий ротор (44), имеющий направленную в осевом направлении первую первичную уплотнительную поверхность (50); неподвижную опору (46) уплотнения, расположенную вблизи ротора (44); кольцевое уплотнительное тело (48), прикрепленное к опоре (46) уплотнения и расположенное между ротором (44) и опорой (46) уплотнения, при этом уплотнительное тело (48) выполнено с возможностью осевого перемещения относительно опоры (46) уплотнения, при этом кольцевое уплотнительное тело (48) включает в себя проходящую по существу в радиальном направлении часть, которая образует направленную в осевом направлении вторую первичную уплотнительную поверхность (82), которая обращена к первой первичной уплотнительной поверхности (50) и проходящую по существу в осевом направлении часть (72), в котором, по меньшей мере, одна выбранная первая первичная уплотнительная поверхность (50) или вторая первичная уплотнительная поверхность (82) имеет, по меньшей мере, один кольцевой уплотнительный зуб (88), проходящий из нее в осевом направлении.2. Узел по п.1, в котором опора (46) уплотнения образует направленную в радиальном направлении вторичную уплотнительную поверхность (47).3. Узел по п.1, в котором проходящая в осевом направлении часть уплотнительного тела (48) несет вторичное уплотнение, которое контактирует с вторичной уплотнительной поверхностью (47) при одновременном обеспечении осевого перемещения уплотнительного тела (48).4. Узел по п.1, в котором, по меньшей мере, один из уплотнительных зубьев (88) имеет сужающийся профиль поперечного сечения.5. Узел по п.1, в котором другая из первой и второй перв1. A sealing assembly located around the axis of the gas turbine engine, comprising a rotor (44) having an axially directed first primary sealing surface (50); a stationary support (46) of the seal located near the rotor (44); an annular sealing body (48) attached to the seal support (46) and located between the rotor (44) and the seal support (46), wherein the sealing body (48) is axially movable relative to the seal support (46), while the ring the sealing body (48) includes a substantially radially extending portion which forms an axially directed second primary sealing surface (82) that faces the first primary sealing surface (50) and extends substantially in the axial direction, a part (72) in which at least one selected first primary sealing surface (50) or the second primary sealing surface (82) has at least one annular sealing tooth (88) extending from it in the axial direction. 2. The assembly according to claim 1, wherein the seal support (46) forms a radially directed secondary sealing surface (47). The assembly according to claim 1, wherein the axially extending portion of the sealing body (48) carries a secondary seal that contacts the secondary sealing surface (47) while simultaneously providing axial movement of the sealing body (48). The assembly according to claim 1, wherein at least one of the sealing teeth (88) has a tapering cross-sectional profile. The node according to claim 1, in which the other of the first and second first
Claims (10)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80443206P | 2006-06-10 | 2006-06-10 | |
| US60/804,432 | 2006-06-10 | ||
| US11/458,764 US20080018054A1 (en) | 2006-07-20 | 2006-07-20 | Aspirating labyrinth seal |
| US11/458,764 | 2006-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU2007121952A true RU2007121952A (en) | 2008-12-20 |
Family
ID=38663995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2007121952/06A RU2007121952A (en) | 2006-06-10 | 2007-06-13 | ASPIRATION LABYRINTH SEAL |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2008038898A (en) |
| CA (1) | CA2591249A1 (en) |
| DE (1) | DE102007027364A1 (en) |
| FR (1) | FR2902172A1 (en) |
| RU (1) | RU2007121952A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2600478C2 (en) * | 2011-03-31 | 2016-10-20 | Дженерал Электрик Компани | Aspirating face seal, gas turbine engine having said seal, method of sealing of said engine and method of replacing secondary seal of said face seal (versions) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110229311A1 (en) * | 2007-07-30 | 2011-09-22 | Kripa Varanasi | Seal assembly |
| US8109716B2 (en) | 2007-08-17 | 2012-02-07 | United Technologies Corp. | Gas turbine engine systems involving hydrostatic face seals with anti-fouling provisioning |
| US8105021B2 (en) | 2007-08-20 | 2012-01-31 | United Technologies Corp. | Gas turbine engine systems involving hydrostatic face seals with integrated back-up seals |
| US7797941B2 (en) | 2007-10-26 | 2010-09-21 | United Technologies Corporation | Gas turbine engine systems involving hydrostatic face seals |
| FR2943094B1 (en) * | 2009-03-12 | 2014-04-11 | Snecma | ROTOR ELEMENT WITH FLUID PASSAGE AND PASSENGER CLOSURE ELEMENT, TURBOMACHINE COMPRISING THE ROTOR ELEMENT. |
| DE102010005421B4 (en) | 2010-01-22 | 2015-01-08 | Lufthansa Technik Ag | Device and method for cleaning a front seal of a jet engine |
| US9291067B2 (en) * | 2013-11-11 | 2016-03-22 | General Electric Company | Rotary machine aspirating seal assembly and method of assembling the same |
| US10808612B2 (en) | 2015-05-29 | 2020-10-20 | Raytheon Technologies Corporation | Retaining tab for diffuser seal ring |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5284347A (en) * | 1991-03-25 | 1994-02-08 | General Electric Company | Gas bearing sealing means |
| US6758477B2 (en) * | 2002-03-26 | 2004-07-06 | General Electric Company | Aspirating face seal with axially biasing one piece annular spring |
| US6719296B2 (en) * | 2002-07-12 | 2004-04-13 | General Electric Company | Seal for a rotating member |
-
2007
- 2007-06-08 CA CA 2591249 patent/CA2591249A1/en not_active Abandoned
- 2007-06-11 FR FR0755668A patent/FR2902172A1/en not_active Withdrawn
- 2007-06-11 DE DE200710027364 patent/DE102007027364A1/en not_active Withdrawn
- 2007-06-11 JP JP2007153957A patent/JP2008038898A/en active Pending
- 2007-06-13 RU RU2007121952/06A patent/RU2007121952A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2600478C2 (en) * | 2011-03-31 | 2016-10-20 | Дженерал Электрик Компани | Aspirating face seal, gas turbine engine having said seal, method of sealing of said engine and method of replacing secondary seal of said face seal (versions) |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2591249A1 (en) | 2007-12-10 |
| FR2902172A1 (en) | 2007-12-14 |
| DE102007027364A1 (en) | 2007-12-13 |
| JP2008038898A (en) | 2008-02-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FA94 | Acknowledgement of application withdrawn (non-payment of fees) |
Effective date: 20120424 |