SE501926C2 - Device for sealing a propeller shaft in a ship - Google Patents

Device for sealing a propeller shaft in a ship

Info

Publication number
SE501926C2
SE501926C2 SE8804471A SE8804471A SE501926C2 SE 501926 C2 SE501926 C2 SE 501926C2 SE 8804471 A SE8804471 A SE 8804471A SE 8804471 A SE8804471 A SE 8804471A SE 501926 C2 SE501926 C2 SE 501926C2
Authority
SE
Sweden
Prior art keywords
pressure
lubricant
chamber
sealing
annular chamber
Prior art date
Application number
SE8804471A
Other languages
Swedish (sv)
Other versions
SE8804471D0 (en
SE8804471L (en
Inventor
Guenter Pietsch
Original Assignee
Blohm Voss Ag
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 Blohm Voss Ag filed Critical Blohm Voss Ag
Publication of SE8804471D0 publication Critical patent/SE8804471D0/en
Publication of SE8804471L publication Critical patent/SE8804471L/en
Publication of SE501926C2 publication Critical patent/SE501926C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/321—Bearings or seals specially adapted for propeller shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/002—Means for preventing rotation of screw-threaded elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F01C1/103—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines
    • F01C20/24—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves
    • F01C20/26—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves using bypass channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B43/001—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts for sealing or insulation
    • 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
    • F16J15/002—Sealings comprising at least two sealings in succession
    • F16J15/004—Sealings comprising at least two sealings in succession forming of recuperation chamber for the leaking fluid
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/321—Bearings or seals specially adapted for propeller shafts
    • B63H2023/327—Sealings specially adapted for propeller shafts or stern tubes
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/955—Locked bolthead or nut
    • Y10S411/974—Side lock
    • Y10S411/984—Longitudinal
    • Y10S411/99—Washer tongue-held

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Sealing Devices (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Of Bearings (AREA)

Abstract

An arrangement for the sealing of a propeller shaft of a ship against the seawater (W) and against a lubricant chamber (S) comprises a multiple seal 1 with a ring 3 chamber being carved out in each case between two adjacent sealing rings 2, with the ring chamber being pressurized via a feed line 4 with a pressurized gas e.g. air, is characterized in that a discharge line 5 opens into the pressurized ring chamber 3; in that a scraper 7 is arranged in the ring chamber and is rigidly connected therewith, with the scraper being so designed that it scrapes lubricant adhering to the shaft from the latter and directs it into the lower part of the ring chamber.

Description

5Û1 926 2 en relativt stor matningskapacitet för tryckluftkällan och dels är oundvikligt med större tryckvariationer. 5Û1 926 2 has a relatively large supply capacity for the compressed air source and is partly unavoidable with larger pressure variations.

Vidare är redan tätningssystem kända (DE-OS 31 22 407), vid vilka en trycklös läckkammare är anordnad mellan tätnings- ringarna och vid vilka insipprande läckage uttömmes via en ledning som går in till fartygets inre.Furthermore, sealing systems are already known (DE-OS 31 22 407), in which a pressureless leakage chamber is arranged between the sealing rings and in which infiltrating leakage is discharged via a pipe which enters the interior of the vessel.

Genom den trycklösa läckkammaren är tätningsringarnas belast- ning där relativt hög, och på grund av den dåliga smörjningen av tätningsringarna uppträder redan efter kort tid avsevärd förslitning vid tätningsringarna och vid hylsan/axeln. Genom fel på tätningsringarna kan det uppstå stora miljöpåkän- ningar.Due to the pressure-free leakage chamber, the load of the sealing rings there is relatively high, and due to the poor lubrication of the sealing rings, considerable wear occurs at the sealing rings and at the sleeve / shaft after a short time. Due to faults in the sealing rings, large environmental stresses can arise.

Dylika system kan även endast inplaceras såsom betingat eller villkorligt miljövänliga, eftersom även här insipprande smörj- medel i läckkammaren delvis rycks med såsom smörjmedelsfilm av den roterande axeln och därvid eventuellt pumpas ut i det omgivande havsvattnet.Such systems can also only be classified as conditionally or conditionally environmentally friendly, since even here lubricants seeping into the leak chamber are partially entrained as a lubricant film by the rotating shaft and thereby possibly pumped out into the surrounding seawater.

Uppfinningen syftar till att övervinna nackdelarna och bris- terna hos de nämnda, kända anordningarna och att i överens- stämmelse därmed åstadkomma en tätningsanordning vid vilken man i stor utsträckning undviker såväl en försämring av smörj- medlet genom inträngande havsvatten i smörjmedelskammaren som även en nedsmutsning av miljön genom utträdande av smörjmedel i det omgivande havsvattnet, och vid vilken tätningsringarnas livslängd förbättras.The object of the invention is to overcome the disadvantages and shortcomings of the said, known devices and to accordingly provide a sealing device in which both a deterioration of the lubricant by penetrating sea water into the lubricant chamber and also a contamination of the environment by the release of lubricants into the surrounding seawater, and in which the service life of the sealing rings is improved.

Detta syfte uppnås enligt uppfinningen genom kombinationen av de särdrag som anges i den kännetecknande delen av kravet 1.This object is achieved according to the invention by the combination of the features stated in the characterizing part of claim 1.

Härvid uppnår man med hjälp av de under a) angivna särdragen att det även vid variationer uppåt eller nedåt i det yttre vattentrycket, i ringkammaren alltid råder samma tryck som eller ett obetydligt lägre tryck än i det omgivande yttre vattnet och i smörjmedelskammaren, så att eventuella smörj- medels- eller havsvattenläckage genom pumpverkan eller lik- 3 5Û1 926 nande kan sippra in i ringkammaren och där lagras under kort tid, utan att utträda i det yttre vattnet eller i smörj- medelskammaren, och därefter genom tryckreduceringen enligt särdrag b) avtappas via ledningar som leder in till fartygets inre. Avtappningen understödjes härvid genom särdragen c). Vid detta system är det möjligt att undvara den i annat fall erforderliga läckkammaren och att reglera smörjmedelstrycket så att smörjmedelstrycket och vattentrycket är lika. Gas- trycket inställes i ringkammaren eller ringkamrarna lämpligt- vis cirka 0,1-0,4 bar lägre så att tätningsringarna belastas mycket litet. vid en föredragen utföringsform av föremålet för kravet l är det så anordnat att spärr- eller avstängningsorganet är utfor- mat såsom magnetventil (kravet 2L Härigenom möjliggöres på enkelt sätt en fjärrmanövrering. Ytterligare utföringsformer kännetecknas genom att styrningen av avstängningsorganet åstadkommas via en i ringkammarens nedre del anordnad sond (mätspets) eller en flottör (krav 3) eller att styrningen åstadkommes via ett periodiskt verkande kopplingsur (krav 4) Det förstnämnda utförandet avser en tömning av ringkammaren i beroende av fyllningsgraden för ringkammaren med läckfluid och är i synnerhet lämpad för kraftigt växlande driftstillstånd, medan det sistnämnda utförandet åstadkommer en stegvis tömning som lämpar sig för mer oföränderliga förhållanden.With the aid of the features specified under a) it is achieved that even with variations upwards or downwards in the external water pressure, in the annular chamber there is always the same pressure as or a slightly lower pressure than in the surrounding external water and in the lubricant chamber, so that any lubricant or seawater leakage by pumping action or the like can seep into the annulus and be stored there for a short time, without escaping into the outer water or into the lubricant chamber, and then by the pressure reduction according to feature b) drained via lines leading into the interior of the ship. The bottling is supported by the features c). With this system it is possible to dispense with the otherwise required leakage chamber and to regulate the lubricant pressure so that the lubricant pressure and the water pressure are equal. The gas pressure is set in the annular chamber or annular chambers suitably about 0.1-0.4 bar lower so that the sealing rings are loaded very lightly. in a preferred embodiment of the object of claim 1, it is so arranged that the locking or shut-off member is designed as a solenoid valve (claim 2L. This enables a remote operation in a simple manner. Further embodiments are characterized in that the control of the shut-off member is effected via a arranged probe (measuring tip) or a float (claim 3) or that the control is effected via a periodically operating timer (claim 4). The former embodiment relates to an emptying of the annulus depending on the degree of filling of the annulus with leakage fluid and is particularly suitable for strongly changing operating conditions , while the latter embodiment provides a stepwise emptying suitable for more unchanging conditions.

Slutligen är det så anordnat att det värde med vilket tryck- gasens tryck hålls lägre än trycket för de medier som skall avtätas, uppgår till 0,1-0,4 bar. Detta tryckskillnadsområde har visat sig vara särskilt fördelaktigt.Finally, it is arranged so that the value at which the pressure gas pressure is kept lower than the pressure of the media to be sealed amounts to 0.1-0.4 bar. This pressure difference range has proven to be particularly advantageous.

Ytterligare detaljer beskrivs i anslutning till den bifogade ritningen, vilken endast schematiskt illustrerar en tätnings- anordning och de med denna förbundna ledningarna.Further details are described in connection with the accompanying drawing, which only schematically illustrates a sealing device and the conduits connected thereto.

Ritningen visar ett snitt genom en tätning 1 med tre tätnings- ringar 2, vilka bildar två ringkammare 3, vilka å ena sidan 501 926 4 tätar mot havsvattnet W och å andra sidan tätar mot smörjmed- let, i föreliggande fall smörjoljan &.En av ringkamrarna är försedd med en tilloppskanal 4 och en utloppskanal 5, vilka är förbundna med varandra (den streckade ledningsdelen) och såle- des bildar ett slutet, med tryckluft belastat ledningssystem.The drawing shows a section through a seal 1 with three sealing rings 2, which form two annular chambers 3, which on the one hand 501 926 4 seal against the sea water W and on the other hand seal against the lubricant, in the present case the lubricating oil &. the annular chambers are provided with an inlet duct 4 and an outlet duct 5, which are connected to each other (the dashed pipe part) and thus form a closed, air-loaded pipe system.

Utloppskanalen 5 uppvisar en i fartygets inre (bilg) utmynnan- de förgreningskanal 58 vilken vid förgreningsstället styrs av en trevägsventil med magnetventil 6, vilken med hjälp av ett tidelement regleras så att utloppskanalen periodiskt, med förutbestämda tidsintervall öppnas och möjliggör bortströmning av läckfluiden från ringkammaren.The outlet channel 5 has a branch channel 58 opening into the inner (bilg) of the ship, which at the branch point is controlled by a three-way valve with solenoid valve 6, which is regulated by means of a time element so that the outlet channel is periodically opened at predetermined time intervals.

Läckmediets bortströmning kan även utföras genom flottör- respektive sondstyrning. Tilloppskanalen 4 innehåller en enkel reglerenhet 8, vilken vid varje tillfälle styr trycket i kammarsystemet så att tryckluftens tryck i ledningssystemet ständigt hålls 0,1-0,4 bar lägre än trycket för de bägge medier som skall tätas.The leakage fluid can also be carried out by float and probe control, respectively. The inlet duct 4 contains a simple control unit 8, which at each time controls the pressure in the chamber system so that the pressure of the compressed air in the duct system is constantly kept 0.1-0.4 bar lower than the pressure for the two media to be sealed.

I den ena ringkammaren 3 är en avstrykare 7 inbyggd, vilken i ringkammarens nedre område stryker av vid axelhylsan B vidhäf- tande smörjolja som genom axelhylsans pumpverkan sipprar in i ringkammaren trots de ovan nämnda åtgärderna.A scraper 7 is built into one of the annular chambers 3, which in the lower area of the annular chamber coats off lubricating oil adhering to the shaft sleeve B which, through the pumping action of the shaft sleeve, seeps into the annular chamber despite the above-mentioned measures.

Claims (5)

501 926 5 PATENTKRAV501 926 5 PATENT CLAIMS 1. Anordning för tätning av en propelleraxel (B) i ett fartyg mot havsvattnet (W) och mot en smörjmedelskammare (S), bestående av en multipeltätning (1) vilken på havsvattensidan är utrustad med åtminstone en utåtriktad tätningsring (2) och vilken på smörjmedelskammarsidan är utrustad med åtminstone en inåtriktad tätningsring (2), varvid det vid varje tillfälle mellan två intilliggande tätningsringar (2) är upptaget en ringkammare (3) vilken via en tilloppsledning (4) belastas med en tryckgas, i synnerhet tryckluft, k ä n n e t e c k n a d av att a) tryckgasens tryck alltid hålls obetydligt lägre än det aktuella yttre vattentrycket och smörjmedelstrycket eller hålls lika med det aktuella yttre vattentrycket och smörj- medelstrycket, b) en utloppsledning (5) mynnar i den belastade ringkammaren (3), vilken utloppsledning bildar ett slutet ledningssystem med tillhörande tilloppsledning (4), varvid tryckhållningen i ledningssystemet sker med hjälp av ett i tilloppsled- ningen inkopplat tryckregleringsorgan (8) och varvid en utloppskanal (Sa) via ett styrt avstängningsorgan (6) är ansluten till utloppsledningen (5), vilken utloppskanal mynnar i fartygets inre (bilg) och tjänar för borttransport av läckfluid som sipprat in i ringkammaren (3), och av att c) i ringkammaren (3) är en med denna fast förbunden avstryka- re (7) anordnad, vilken är så utformad att den från axeln avstryker därvid vidhäftande smörjmedel och leder detta smörjmedel in i den nedre delen av ringkammaren.Device for sealing a propeller shaft (B) in a ship against the seawater (W) and against a lubricant chamber (S), consisting of a multiple seal (1) which on the seawater side is equipped with at least one outward sealing ring (2) and which on the lubricant chamber side is equipped with at least one inwardly directed sealing ring (2), each time between two adjacent sealing rings (2) a ring chamber (3) is accommodated which is loaded via a supply line (4) with a compressed gas, in particular compressed air, characterized in that a) the pressure gas pressure is always kept slightly lower than the current external water pressure and lubricant pressure or is kept equal to the current external water pressure and lubricant pressure, b) an outlet line (5) opens into the loaded annular chamber (3), which outlet line forms a closed line system with associated supply line (4), whereby the pressure is maintained in the line system by means of a pressure connected in the supply line. control means (8) and wherein an outlet channel (Sa) is connected via a controlled shut-off means (6) to the outlet line (5), which outlet channel opens into the interior of the vessel (bilg) and serves for transporting away leakage fluid which has leaked into the annular chamber (3), and in that c) in the annular chamber (3) a wiper (7) fixedly connected thereto is arranged, which is designed so that it wipes adhesive lubricant from the shaft and leads this lubricant into the lower part of the annular chamber. 2. Tätningsanordning enligt krav l, k ä n n e t e c k n a d av att avstängningsorganet (6) är utformat såsom trevägsventil med magnetventil.Sealing device according to Claim 1, characterized in that the shut-off means (6) is designed as a three-way valve with a solenoid valve. 3. Tätningsanordning enligt krav 1. eller 2, k ä n n e - t e c k n a d av att avstängningsorganets (6) styrning åstad- kommes via en i den nedre delen av ringkammaren anordnad sond/mätspets eller via en flottör. 501 926 6Sealing device according to Claim 1 or 2, characterized in that the control of the shut-off member (6) is effected via a probe / measuring tip arranged in the lower part of the annular chamber or via a float. 501 926 6 4. Tätningsanordning enligt krav 1. eller 2, k ä n n e - t e c k n a d av att avstängningsorganets (6) styrning åstad- kommes via ett periodiskt verkande kopplingsur.Sealing device according to Claim 1 or 2, characterized in that the control of the shut-off member (6) is effected via a periodically operating timer. 5. Tätningsanordning enligt något av kraven 1-3, k ä n n e - t e c k n a d av att det värde med vilket tryckgasens tryck hålls lägre än trycket för de medier som skall tätas, uppgår till 0,1-0,4 bar.Sealing device according to one of Claims 1 to 3, characterized in that the value at which the pressure of the pressurized gas is kept lower than the pressure of the media to be sealed amounts to 0.1-0.4 bar.
SE8804471A 1987-12-11 1988-12-09 Device for sealing a propeller shaft in a ship SE501926C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3742079A DE3742079C2 (en) 1987-12-11 1987-12-11 Arrangement for sealing a propeller shaft of a ship

Publications (3)

Publication Number Publication Date
SE8804471D0 SE8804471D0 (en) 1988-12-09
SE8804471L SE8804471L (en) 1989-06-12
SE501926C2 true SE501926C2 (en) 1995-06-19

Family

ID=6342409

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8804471A SE501926C2 (en) 1987-12-11 1988-12-09 Device for sealing a propeller shaft in a ship

Country Status (8)

Country Link
JP (1) JP2599983B2 (en)
KR (1) KR0142103B1 (en)
CN (1) CN1010796B (en)
AU (1) AU608393B2 (en)
DE (1) DE3742079C2 (en)
GB (1) GB2213539B (en)
NL (1) NL192828C (en)
SE (1) SE501926C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107074334A (en) * 2014-11-03 2017-08-18 Abb公司 For the sealing device of ship, propulsion unit, ship and method for sealing propeller for ship axle

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3800706C2 (en) * 1988-01-13 1994-09-01 Blohm Voss Ag Kit for a shaft seal, especially on a stern tube of a ship
GB2252597B (en) * 1991-02-06 1994-08-10 Cocksedge Eng Ltd Improvements in roller assemblies
JP2509401B2 (en) * 1991-09-30 1996-06-19 株式会社神戸製鋼所 Stern tube shaft seal device and its control method
DE4333880C2 (en) * 1993-10-05 2003-03-06 Sms Demag Ag roller bearing
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DE3742079A1 (en) 1989-06-22
GB2213539A (en) 1989-08-16
GB2213539B (en) 1991-12-11
NL8803033A (en) 1989-07-03
KR0142103B1 (en) 1998-07-15
AU2664588A (en) 1989-06-15
AU608393B2 (en) 1991-03-28
CN1035876A (en) 1989-09-27
JPH01195199A (en) 1989-08-07
KR890009722A (en) 1989-08-03
DE3742079C2 (en) 1994-05-11
JP2599983B2 (en) 1997-04-16
GB8828437D0 (en) 1989-01-05
SE8804471D0 (en) 1988-12-09
NL192828C (en) 1998-03-04
CN1010796B (en) 1990-12-12
SE8804471L (en) 1989-06-12
NL192828B (en) 1997-11-03

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