IT1281671B1 - SLIDING RING TUNES FOR TURBOMACHINES IN PARTICULAR MECHANISMS FOR GAS TURBINE ENGINES - Google Patents

SLIDING RING TUNES FOR TURBOMACHINES IN PARTICULAR MECHANISMS FOR GAS TURBINE ENGINES

Info

Publication number
IT1281671B1
IT1281671B1 IT96MI000060A ITMI960060A IT1281671B1 IT 1281671 B1 IT1281671 B1 IT 1281671B1 IT 96MI000060 A IT96MI000060 A IT 96MI000060A IT MI960060 A ITMI960060 A IT MI960060A IT 1281671 B1 IT1281671 B1 IT 1281671B1
Authority
IT
Italy
Prior art keywords
sealing
sliding
cavity
perimeter
sealing rings
Prior art date
Application number
IT96MI000060A
Other languages
Italian (it)
Inventor
Herbert Hoffelner
Original Assignee
Mtu Muenchen Gmbh
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 Mtu Muenchen Gmbh filed Critical Mtu Muenchen Gmbh
Publication of ITMI960060A0 publication Critical patent/ITMI960060A0/it
Publication of ITMI960060A1 publication Critical patent/ITMI960060A1/en
Application granted granted Critical
Publication of IT1281671B1 publication Critical patent/IT1281671B1/en

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
    • F16J15/3464—Mounting of the seal
    • F16J15/3476—Means for minimising vibrations of the slip-ring
    • 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
    • F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
    • 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
    • F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
    • 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
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/122—Shaft sealings using sealing-rings especially adapted for elastic fluid pumps
    • 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
    • F16J15/3436—Pressing means
    • F16J15/3452—Pressing means the pressing force resulting from the action of a spring
    • 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
    • F16J15/3464—Mounting of the seal
    • F16J15/3488—Split-rings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

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

Abstract

Per la chiusura a tenuta di ambienti soggetti a pressioni fluidiche diverse fra uno statore di macchina e un albero di macchina, la tenuta ad anelli scorrevoli presenta sostanzialmente le seguenti caratteristiche;- lo statore della macchina presenta una cavità aperta verso l'albero della macchina, per un anello di pressione elasticamente sostenuto radialmente lungo il perimetro nella cavità e per anelli scorrevoli e di tenuta;- gli anelli scorrevoli e di tenuta formano sul perimetro dell'albero una tenuta primaria alimentata con liquido di tenuta;- tramite superfici di accoppiamento conicamente corrispondenti tra loro, gli anelli scorrevoli sono appoggiati su un lato all'anello di pressione, e sull'altro lato ad anelli di tenuta;- gli anelli di tenuta sono guidati assialmente all'esterno contro la cavità con mobilità radiale e creano una chiusura a tenuta secondaria della cavità, con liquido di tenuta alimentato, rispetto ad entrambi i vani a pressione;- l'anello di tenuta e gli anelli scorrevoli sono divisi, ciascuno, in un punto perimetrale.For the sealing of environments subject to different fluidic pressures between a machine stator and a machine shaft, the sliding ring seal basically has the following characteristics; - the machine stator has an open cavity towards the machine shaft, for a pressure ring elastically supported radially along the perimeter in the cavity and for sliding and sealing rings; - the sliding and sealing rings form a primary seal supplied with sealing liquid on the perimeter of the shaft; - through conically matching coupling surfaces between them, the sliding rings rest on one side of the pressure ring, and on the other side with sealing rings; - the sealing rings are axially guided externally against the cavity with radial mobility and create a tight seal secondary cavity, with sealing liquid supplied, with respect to both pressure compartments; - the sealing ring and the the sliding doors are divided, each, in a perimeter point.

IT96MI000060A 1995-01-24 1996-01-16 SLIDING RING TUNES FOR TURBOMACHINES IN PARTICULAR MECHANISMS FOR GAS TURBINE ENGINES IT1281671B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19502079A DE19502079A1 (en) 1995-01-24 1995-01-24 Mechanical seal for turbomachinery, in particular gas turbine engines

Publications (3)

Publication Number Publication Date
ITMI960060A0 ITMI960060A0 (en) 1996-01-16
ITMI960060A1 ITMI960060A1 (en) 1997-07-16
IT1281671B1 true IT1281671B1 (en) 1998-02-26

Family

ID=7752191

Family Applications (1)

Application Number Title Priority Date Filing Date
IT96MI000060A IT1281671B1 (en) 1995-01-24 1996-01-16 SLIDING RING TUNES FOR TURBOMACHINES IN PARTICULAR MECHANISMS FOR GAS TURBINE ENGINES

Country Status (4)

Country Link
DE (1) DE19502079A1 (en)
FR (1) FR2730276A1 (en)
GB (1) GB2297363A (en)
IT (1) IT1281671B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009010047U1 (en) 2009-07-23 2010-12-23 Gapi Technische Produkte Gmbh Rotary oil joint
DE202012000209U1 (en) 2012-01-11 2013-04-22 Gapi Technische Produkte Gmbh Fluid rotary feedthrough
EP2690258A1 (en) * 2012-07-24 2014-01-29 Siemens Aktiengesellschaft Steam turbine Sealing assembly whereby a liquid sealing and a blocking steam is used

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50971C (en) * N. MACBETH in Bolton, Lancaster, England Stuffing box with movable packaging containers
DE228458C (en) *
US3009747A (en) * 1956-11-23 1961-11-21 Paul Gross Bushing
US2971783A (en) * 1957-03-04 1961-02-14 City Nat Bank And Trust Compan Rotary seal
US2888286A (en) * 1957-06-24 1959-05-26 Westinghouse Electric Corp Turbine apparatus
US3333856A (en) * 1964-04-22 1967-08-01 Continental Illinois Nat Bank Labyrinth type face seal
CH450081A (en) * 1965-07-01 1968-01-15 Licentia Gmbh Floating ring seal
DD108361A5 (en) * 1973-12-18 1974-09-12
FR2317528A1 (en) * 1975-07-11 1977-02-04 Creusot Loire SEALING DEVICE AGAINST GAS OUTLETS AT THE ENDS OF THE ROTARY SHAFT OF A CENTRIFUGAL COMPRESSOR
JPS556067A (en) * 1978-06-30 1980-01-17 Arai Pump Mfg Co Ltd Slant face seal
US4436311A (en) * 1982-04-20 1984-03-13 Brandon Ronald E Segmented labyrinth-type shaft sealing system for fluid turbines
DE3220595A1 (en) * 1982-06-01 1983-12-01 Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel Auxiliary seal for shafts, in particular propeller shafts
DE3542826A1 (en) * 1985-12-04 1987-06-11 Mtu Muenchen Gmbh SHAFT SEALING DEVICE FOR TURBO MACHINES, ESPECIALLY GAS TURBINE ENGINES
DE3671279D1 (en) * 1985-11-01 1990-06-21 Crane John Uk Ltd MECHANICAL SEALS.
DE3828833A1 (en) * 1988-08-25 1990-03-01 Mtu Muenchen Gmbh DEVICE FOR SEALING MEDIA, LIQUIDS AND / OR GASES, DIFFERENT PRESSURES, ROOMS IN PARTICULAR, IN PARTICULAR FOR TURBO MACHINES
DE3830470A1 (en) * 1988-09-08 1990-03-15 Mtu Friedrichshafen Gmbh SEALING DEVICE BETWEEN SHAFT AND HOUSING OF A FLUID MACHINE WITH AT LEAST ONE IMPELLER
US5014999A (en) * 1989-03-06 1991-05-14 Car-Graph, Inc. Pressure enhanced self aligning seal
US5395124A (en) * 1993-01-04 1995-03-07 Imo Industries, Inc. Retractible segmented packing ring for fluid turbines having gravity springs to neutralize packing segment weight forces

Also Published As

Publication number Publication date
FR2730276A1 (en) 1996-08-09
ITMI960060A1 (en) 1997-07-16
ITMI960060A0 (en) 1996-01-16
GB9601432D0 (en) 1996-03-27
GB2297363A (en) 1996-07-31
DE19502079A1 (en) 1996-07-25

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0001 Granted