WO1999032815A1 - Dispositif pour appliquer un corps d'etancheite par compression radiale - Google Patents

Dispositif pour appliquer un corps d'etancheite par compression radiale Download PDF

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Publication number
WO1999032815A1
WO1999032815A1 PCT/EP1998/008337 EP9808337W WO9932815A1 WO 1999032815 A1 WO1999032815 A1 WO 1999032815A1 EP 9808337 W EP9808337 W EP 9808337W WO 9932815 A1 WO9932815 A1 WO 9932815A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
pressure medium
pressure
cannula
bearing
Prior art date
Application number
PCT/EP1998/008337
Other languages
German (de)
English (en)
Inventor
Walter Hunger
Original Assignee
Walter Hunger
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
Priority claimed from DE19806882A external-priority patent/DE19806882A1/de
Application filed by Walter Hunger filed Critical Walter Hunger
Publication of WO1999032815A1 publication Critical patent/WO1999032815A1/fr

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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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/02—Sliding-contact bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • 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
    • F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings

Definitions

  • the invention relates to a device for the radial pressing of a sealing body in order to seal a first machine part against a second machine part, in particular for sealing a cylinder against a piston rod or a piston, wherein an annular seal with the sealing body is provided in the first machine part, which is on the second Machine part fits tightly and in which there is an expandable, in particular hose-like structure between the sealing body and the first machine part, which has an interior space in which a pressure medium is located, the volume of the pressure medium being able to be increased to compensate for wear or repositioning of the sealing body.
  • Pressure devices of the type mentioned above are known, for example from DE 40 18 897 AI, DE 42 10 701 C2 and DE 44 40 895 Cl, and are also referred to herein as Blähring seals.
  • wear of the sealing body is not only to be understood as an abrasion of the sealing body but also a material aging shrinkage or a repositioning of the material of the sealing body.
  • an expandable structure is used in a seal usually designed as a ring seal, which either itself forms a sealing element or is arranged between the sealing element and the sealing machine part.
  • a pressure medium in the interior of the expandable structure, ie either a gas or a liquid. If the seal wears out, additional pressure medium can be introduced into the expandable structure, so that it expands and the wear is therefore compensated for.
  • the sealing medium can be a gas or a gel-like liquid or a gel.
  • seals of this type are relatively expensive because, in particular with moving machine parts, the continuous connection of the expandable structure to a pressure source can only be produced in a complicated manner.
  • the object of the present invention is to further develop a pressing device of the type mentioned at the outset such that this outlay is reduced. In particular, it should be possible to adjust the pressure device only when there is a need, that is, when the seal as a whole is worn out in a predetermined manner.
  • the transfer means are specially designed, in extreme cases through a pointed cannula through which the pressure medium can be introduced into the interior.
  • the arrangement can alternatively be such that the expandable structure is only pierced when necessary, ie when the specified wear or repositioning has actually occurred; alternatively, however, the expandable structure can also be pierced from the beginning, that is to say already during the assembly of the seal, the seal being set to its desired coefficient of friction during assembly and the pressure medium then being introduced into the expandable structure only when necessary.
  • the advantage of the first-mentioned variant is that the expandable structure is completely intact until the need arises and is therefore completely unaffected by interference.
  • the advantage of the second variant mentioned is that no special means have to be provided in order to carry out the piercing movement of the cannula into the expandable structure if necessary.
  • a pointed cannula has the advantage that the damage to the expandable structure is extremely small.
  • the punctured skin of the structure closes again on its own, so that both when the cannula remains in the wall of the expandable structure and when the cannula is withdrawn from the wall of the expandable structure, the injury occurring there does not count as Leak works.
  • Embodiments of the invention are particularly preferred in which the pressure in the interior of the expandable structure is monitored and the further pressure medium is automatically introduced when a predetermined limit value of the pressure is exceeded.
  • This measure has the advantage that automatic monitoring of the seal is possible.
  • piston-cylinder units are used on locks, dams, weirs and the like, they are regularly far below the water surface and therefore cannot be inspected. If the seals on these cylinders wear out. pressure medium can escape and contaminate the surrounding water. This is particularly critical with reservoirs that serve as drinking water reservoirs.
  • the pressure medium is contained in an interior of an actuation unit and can be transferred into the interior of the expandable structure by means of a piston via the pointed cannula.
  • This measure has the advantage that the pressure medium is kept in the immediate vicinity of the seal, so that no separate connection has to be made.
  • the piston can be deflected manually, in particular by means of screws.
  • This measure has the advantage that the pressure medium can be supplied in a simple manner by means of a device which can be produced inexpensively.
  • actuated by means of screws e.g. high pressure can be exerted manually by means of a piston adjustable by a spindle.
  • This measure opens up the possibility of driving any control curves by remote control and / or adjusting a plurality of seals via a central control.
  • the piston can be adjusted automatically, preferably by means of a spring.
  • This measure has the advantage that a continuous refilling of pressure medium is ensured even in inaccessible places, even if it cannot be recognized from the outside that an adjustment is necessary due to the lack of accessibility of the seal.
  • a stop for the travel path of the cannula is provided when the expandable structure is pierced by means of the cannula. This measure has the advantage that damage to the structure on the side opposite the puncture point is prevented, which could lead to leakage.
  • the cannula is automatically retractable after being inserted into the expandable structure, preferably by means of a spring.
  • This measure has the advantage that the expandable structure can “self-heal” when the cannula is withdrawn and the punctured skin of the expandable structure closes behind the withdrawn cannula.
  • This measure has the essential advantage that the additional pressure medium does not have to be metered and filled in each case. Rather, the cartridges filled with the printing medium can be kept ready and used in the device during assembly or, if necessary, to replace an empty cartridge.
  • the cartridge can preferably be pierced by means of a first pointed end of the cannula, while a second pointed end of the cannula pierces the expandable structure.
  • a piston is arranged in the cartridge and the piston can be actuated from the outside for emptying.
  • This measure has the advantage that a reliable and complete emptying of the cartridge can be ensured.
  • the print medium is supplied from an external unit.
  • This measure has the advantage that a large number of sealing devices can be supplied and controlled from a central unit. Furthermore, this variant of the invention is particularly suitable for applications in which correspondingly large amounts of pressure medium are required for large seals. These large quantities or volumes can be supplied more easily from a control center, especially since the control center, if it supplies several such seal arrangements, only has to keep the amount of pressure medium available which corresponds to the statistical probability of the seal failing.
  • the pressure medium fed from a central unit simultaneously presses the pointed cannula through the expandable structure.
  • This measure has the advantage that e.g. a desired consistency of the pressure medium can be set by introducing air bubbles into the liquid pressure medium (gel) in the expandable structure.
  • the invention is preferably used in connection with ring seals on piston-cylinder arrangements.
  • the arrangement can be installed "from the outside", i.e. in an inner wall of a cylinder for sealing against a piston or a piston rod running in the cylinder.
  • an installation "from the inside” can also be selected, i.e. in an outer peripheral surface of a piston or a piston rod for sealing against a surrounding cylinder.
  • the external force for deflecting the cannula and / or an external pressure medium can thus be supplied in a direction lying in the plane of the ring seal, ie in the radial direction.
  • This type of construction is particularly suitable for an arrangement “from the outside”.
  • the external force and / or the pressure medium can also be located perpendicular to the plane of the ring seal Direction, ie in the axial direction, are supplied. This design is particularly suitable for an arrangement "from the inside”.
  • a bearing point is addressed, i.e. an arrangement in which there is a bearing between an outer body and an inner body.
  • the bearing can be, for example, a ball bearing or a plain bearing.
  • At least one half of the bearing is designed to be expandable. This half of the bearing is preferably an outer ring of the bearing.
  • the expandable bearing half is provided with an annular space and a pressure medium can be supplied to the annular space by means of a pressure medium line.
  • the annular space is preferably arranged in a metallic outer ring and can be acted upon by a hydraulic pressure medium.
  • the advantage is achieved that remote-controlled adjustment by pressurizing an expandable body is also possible.
  • the means used for this purpose and the controls used with regard to the achievable advantages, reference can be made to the exemplary embodiments of the invention dealt with above in connection with a seal. Further advantages result from the description and the attached drawing.
  • Fig. La shows an axial section through a first embodiment of a Blähring seal according to the invention, which is used between a cylinder and a piston rod;
  • Fig. Lb a section of Fig la, on an enlarged scale
  • Fig. La and lb 10 denotes a piston-cylinder arrangement. This comprises a piston 11 (or a piston rod) and a cylinder 12 in which the piston 11 or the piston rod runs.
  • An existing game is indicated in Fig. Lb with 13 (not to scale).
  • the annular seal 20 is used to seal the piston 11 or the piston rod to the cylinder 12.
  • the annular seal 20 comprises a first sealing body 21 which is approximately H-shaped in axial section, preferably made of a first plastic.
  • a tube 23 is embedded in the top of the first seal body 21.
  • the hose 23 is also preferably made of a plastic, for example a silicone rubber.
  • the tube 23 has an interior space 24 which is filled with a pressure medium, preferably with a pressure fluid, for example a gel.
  • a channel 25 to the seal 20 runs in the radial direction in the cylinder 12. The channel 25 is open to the seal 20, ie it opens onto the surface of the hose 23 that is exposed there.
  • a pointed cannula 26 runs in the channel 25 and is designed in such a way that it can penetrate the surface of the tube 23, so that the cannula 26, i. whose longitudinal channel can connect to the interior 24 of the hose 23.
  • an actuating unit designated as a whole by 30, is provided on the outside of the cylinder 12.
  • the actuating unit comprises
  • a screw head 31 which can be rotated on a body 32.
  • the body 32 is screwed firmly into the cylinder 12 and is provided with a corresponding counter thread for the screw head 31 at its end facing away from the cylinder 12.
  • the screw head 31 and the body 32 are hollow in the transition area.
  • the screw head 31 is provided with a piston 33 which runs in an interior 34 of the screw head 31 or body 32.
  • the interior 34 is also filled with a pressure medium, which is preferably the same pressure medium as that in the hose 23.
  • the needle body 35 In the starting position (not shown in FIG. 1 a), the needle body 35 is pressed upwards by the spring 36 so far that the pointed cannula 26 is not yet in engagement with the tube 23.
  • pressure medium can now be “reloaded” into the interior 24 of the hose 23 until the seal 20 is tight again and takes on its sealing function completely and the prescribed contact pressure and coefficient of friction have been reached.
  • the hose 23 serves as a pretensioning element. However, the pressure can also be reduced in a corresponding manner if necessary.
  • the "reloading" of the hose can not only be carried out when the seal is worn. Reloading is also advisable when the seal has “settled", i.e. if the required pretension has decreased due to aging shrinkage of the sealing materials used.
  • the screw head 31 can then even be turned back, if necessary, so that the cannula 26 is removed from the tube 23 again.
  • the material of the hose 23 can namely be so "self-healing" that the pierced
  • the surface of the hose 23 closes again automatically in the region of the channel 25 without a pressure loss occurring in the hose 23.
  • the tube 23b of the seal 20b is also pierced during the assembly of the seal 20b.
  • the adjustment is made if necessary, i.e. with progressive wear or repositioning of the seal 20b automatically by the piston 33b being provided with an adjusting spring 40.
  • the adjusting spring 40 ensures a uniform after-flow of pressure medium through the cannula 26b into the hose 23b as soon as the pressure in the hose 23b decreases due to wear of the seal 20b.
  • the externally supplied pressure medium flows through the cannula 26c into the hose 34c.
  • the cannula 26c can already be inserted into the tube during installation.
  • the externally supplied pressure medium can also be used to first pierce the tube 34c with the cannula 26c.
  • the cannula 26c can be arranged axially rigid in a piston-like cannula holder 46, which is deflected by the inflowing external pressure medium.
  • the external pressure medium can, but need not, be the same pressure medium as in the hose 23c. It can be a gas or a liquid.
  • a check valve indicated by 41 in FIG. 4 ensures that the supplied external pressure medium cannot flow out again, so that the pressure in the hose 23b is maintained.
  • gas bubbles e.g. Air bubbles
  • a liquid pressure medium e.g. a gel that can be introduced.
  • the arrangement acc. Fig. 4 is particularly suitable due to its external pressure medium supply and control for seals with large dimensions, in which relatively large volumes of pressure medium are required. Furthermore, this arrangement can preferably be used for those cases in which a plurality of such sealing arrangements are controlled via a central supply and control.
  • the adjustment takes place via a pneumatic or hydraulic connection 44, which is connected to a corresponding line 45.
  • the line 45 in turn leads to a central control unit (not shown).
  • the piston 33d is deflected by applying a pressure.
  • the piston 33d in turn acts on the only schematically drawn cannula 26d.
  • the hose 23d is also pierced by the hydraulic actuation, for example, and the adjustment can also be carried out by means of the hydraulics.
  • a pressure medium line 45e which is only indicated schematically, e.g. an air duct, i.e. pneumatic.
  • both the piercing and the readjustment are effected by means of the hydraulic / pneumatic system via the piston 33e.
  • a check valve 46 ensures that no pressure medium can flow back into line 45e.
  • the deflection of the cannula 26f or needle is effected via a thread 47.
  • a set screw 48 runs in the thread 47 and is connected to the piston 33f.
  • the adjusting screw 48 is actuated, for example, from the outside, for example by means of an Allen key, as indicated by a corresponding recess 49.
  • the arrangement is rotated through 90 ° in order to be able to access it in the axial direction from a flange 50 of the cylinder 12g.
  • the actuation in turn takes place via a thread 51 or an adjusting screw 52, which acts on the piston 33g.
  • An angled channel 53 leads from the interior 34g, which is acted upon by the piston 33g, to the cannula 26g, which in the example shown is permanently installed, ie, it pierces the hose 23g at the time of installation.
  • an external positive displacement pump 55 with a spindle 56 is used.
  • a pressure medium is fed via a pressure line 57 from a pressure chamber 58 to the displacement pump 55 to the actuating unit 30h.
  • the hose can be pierced and, if necessary, reloaded, with several cylinders from a central lubrication system, i.e. a central supply and control unit can be operated.
  • a connector 60 of the positive displacement pump is designed to be movable in the axial direction. It can be inserted in the direction of an arrow 62 into a corresponding opening 61 in an end face of the cylinder and then inserted with a threaded pin 63 into a threaded bore 64 in an end face 65 of the piston III. be screwed.
  • the axially movable connector 60 can follow the axial movement of the piston III. After the pressurization has ended, the threaded bore 64 is closed by means of a screw plug (not shown).
  • the seal 20i is supplied with pressure medium via the angled channel 53i. As already described several times, the seal 20i can either only be acted upon by an external pressure medium for transferring a pressure medium reservoir already present in the seal (see exemplary embodiment according to FIG. 5) or the pressure medium required for reloading the hose is also supplied externally (cf. embodiment according to FIG. 4).
  • the exemplary embodiment according to FIG. 11 is a first mechanical variant of the exemplary embodiment according to FIG. 10.
  • the piston 33k running in a bore is actuated via a plunger 67, which is adjustable from the outside, as indicated by an arrow 69.
  • a plunger 67 which is adjustable from the outside, as indicated by an arrow 69.
  • an adjustment rod of an actuator serve which engages in a threaded bore 68 on the rear of the plunger 67.
  • the piston 33k is secured against falling out of the bore (not shown).
  • the bore is closed in a pressure-tight manner after the pressurization has ended, for example also by means of a screw plug.
  • the plunger 331 is actuated by the plunger 671 in such a way that the plunger 671 ends in a head 71 which is provided with the threaded connection 681.
  • the head 71 is with one Provided external thread 72 which runs in an extension 73 on the end face 651 of the piston 111.
  • the plunger 671 or the piston 331 can be actuated from the outside, as indicated by the arrow 691.
  • FIG. 13 is again of a different type. Similar to the exemplary embodiment according to FIGS. 1a and 1b, the body 32m of the actuating unit 30m is screwed into the cylinder 12m and a screw head 31m is screwed onto the body 32m at the top.
  • a bolt 76 which is axially rigidly connected to the screw head 32m at a fastening point 75.
  • the bolt 76 runs into a threaded tip 77 at its end facing away from the fastening point 75.
  • the bolt 76 extends into an axial through bore 78 of the body 32m.
  • a cartridge 80 for receiving the pressure medium is located in the through bore 78 of the body 32m.
  • the cartridge 80 has at its upper end a collar 81 which is designed for the positive reception of the threaded tip 77.
  • the cartridge 80 is closed off by a base 84.
  • a piston 82 which is axially displaceable in the interior 83 of the cartridge 80.
  • a piston 85 also runs below the cartridge 80 in the through bore 78.
  • the cannula 26m is fixed axially rigidly in the piston 85.
  • the cannula 26m is provided with a tip both at its upper end 87 and at its lower end 88.
  • the path of the piston 85 in the through hole 78 is downward delimited by a package 89 of a plurality of plates arranged one above the other, which rests on the stop 37m of the cylinder 12m and serves as a sealing element between the cannula 87 and the cylinder 12m.
  • the cartridge 80 is inserted into the through bore 78 from above.
  • the piston 85 with the cannula 26m at both ends 87, 88 is already located in the through hole 78 on the packet 89.
  • the cartridge 84 is thereby loosely placed with its bottom 84 on the upper pointed end 87 of the cannula 26m.
  • the screw head 31m is screwed on. With a suitable marking, the screw head 31m is screwed on as far as shown in Fig. 13, i.e. so far that the cannula 26m with its two pointed ends 87 and 88 is just loosely clamped between the bottom 84 of the cartridge 80 and the tube 23m.
  • the threaded tip 77 preferably already engages the collar 81 in a form-fitting manner.
  • the screw head 31m is now rotated further, so that the threaded tip 77 now engages in the collar 81 at the latest, and cannot be lost, e.g. by a self-tapping thread, a bayonet-like connection or the like.
  • the bolt 76 now pushes the piston 82 down. Since the pressure medium in the interior 83 of the cartridge 80 cannot escape, the cartridge 80 is moved in the through hole 78 towards ten moved. As a result, the bottom 84 of the cartridge 80 is pierced by the upper tip end 87 of the cannula 26m, while the lower tip end 88 pierces the tube 23m. This clears the way for the pressure medium from the interior 83 of the cartridge 80 into the interior of the hose 23m.
  • 90 generally designates a bearing point.
  • the bearing point 90 is located in the area between an outer body 91, for example a housing, and an inner body 92, for example a shaft mounted in the housing.
  • a ball bearing 93 is arranged between the bodies 91, 92.
  • the ball bearing 93 has an outer ring 94 and an inner ring 95 in a manner known per se.
  • annular space 96 is provided in the outer ring 94.
  • a pressure medium line 97 leads to this annular space 96.
  • the outer ring 94 is preferably made of metal. It is dimensioned so that by applying a high pressure in the annulus 96 an expansion of the outer ring 94 occurs (or an expansion of the inner ring 95 if an annular space is arranged therein). Since a very high pressure must be generated in the annular space 96 when using a metallic outer ring 94, a hydraulic medium is preferably supplied via the pressure medium line 97.
  • Expansion of the outer ring 94 can compensate for wear in the area of the bearing 90.
  • FIG. 15 shows a bearing point 100 with an outer body 101 and an inner body 102.
  • a sliding bearing 103 is located between the bodies 101 and 102.
  • the sliding bearing 103 has an outer ring 104 and an inner ring 105 provided in the outer ring 104.
  • the annular space 106 is connected to a pressure medium line 107.
  • FIG. 15 corresponds to that of FIG. 14.
  • bearing points 90, 100 are only to be understood as examples.
  • the bearings can be used with axial and radial bearings.
  • the exemplary embodiments described above can be used for numerous applications. However, applications in the area of large cylinders are particularly preferred. Large cylinders are used in heavy machinery and presses.
  • a particularly preferred application example is the use of such large cylinders in hydraulic steel construction.
  • Such piston-cylinder units are used which are arranged under water to actuate corresponding gates, locks and the like.
  • pressure medium reservoirs with a capacity of typically 100,000 liters are used in such large cylinders, it can well happen that a considerable part of this large amount of oil escapes without being noticed. This is particularly critical in the case of dams because dams often serve as drinking water reservoirs. Large amounts of pollution could occur without being recognized. It is therefore preferred in the context of the present invention to use a pressure switch which, for example, continuously monitors the pressure in the interior 24 of the hose 23. As the seal 20 wears out over time, the pressure in the interior 24 slowly decreases. The pressure value can be transferred, for example, via a corresponding measuring line to a manometer, which is located in the control position of the dam.
  • the supervisor can be instructed or the hose 23 can be "reloaded” in its interior 24 by moving the cannula 26 forward in the channel 25 in order in this way to provide further pressure fluid to inject into the interior 24 of the tube 23.
  • aids can be used for the adjustment required, for example mechanical, hydraulic, pneumatic, electromagnetic or the like.
  • the present invention also has a very significant environmental significance and significance.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Fluid Mechanics (AREA)
  • Coating Apparatus (AREA)

Abstract

L'invention concerne un dispositif permettant d'appliquer un corps d'étanchéité (21, 22) par compression radiale, qui sert à étanchéifier une première partie de machine par rapport à une seconde partie de machine, notamment à étanchéifier un cylindre (12) depuis l'extérieur, par rapport à une tige de piston (11) ou un piston, ou une tige de piston ou un piston depuis l'intérieur par rapport à un cylindre. Dans la première partie de la machine, il est prévu une garniture d'étanchéité annulaire (20) munie d'un corps d'étanchéité (21, 22), qui repose de manière étanche contre la seconde partie de la machine. Entre le corps d'étanchéité (21, 22) et la première partie de la machine, il est prévu un élément extensible (23) qui présente un espace intérieur (24) dans lequel se trouve un milieu de pression. Le volume dudit milieu de pression peut être augmenté pour compenser une éventuelle usure du corps d'étanchéité. Il est prévu des éléments pour percer l'élément (23) extensible à l'aide d'une canule (26) et introduire davantage de milieu de pression dans l'espace intérieur (24).
PCT/EP1998/008337 1997-12-22 1998-12-19 Dispositif pour appliquer un corps d'etancheite par compression radiale WO1999032815A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19758354 1997-12-22
DE19758354.7 1997-12-22
DE19806882A DE19806882A1 (de) 1997-12-22 1998-02-19 Vorrichtung zum radialen Anpressen eines Dichtkörpers
DE19806882.4 1998-02-19

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Publication Number Publication Date
WO1999032815A1 true WO1999032815A1 (fr) 1999-07-01

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2349673A (en) * 1999-05-01 2000-11-08 Pipeline Engineering And Suppl Inflatable seal
DE19959856A1 (de) * 1999-12-10 2001-06-21 Coperion Waeschle Gmbh & Co Kg Verfahrenstechnischer Apparat, insbesondere Zellenradschleuse
WO2007033421A1 (fr) * 2005-09-22 2007-03-29 Pump Technology Services Pty Ltd Ensemble d’étanchéité
DE10100408B4 (de) * 2001-01-02 2010-04-08 Hunger, Walter, Dr.-Ing. E.H. Abstreifvorrichtung zum Entfernen vo Schmutzpartikeln oder Ählichem von einer Kolbenstange
DE102012110752A1 (de) 2012-11-09 2014-05-15 Krones Ag Vorrichtung und Verfahren zum Abdichten eines Maschinenteils gegenüber einem zweiten Maschinenteil

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Publication number Priority date Publication date Assignee Title
DE754340C (de) * 1940-01-31 1952-01-31 Kurt Dr-Ing Schoene Stopfbuechse fuer Kolbenpumpen
DE1190741B (de) * 1962-03-09 1965-04-08 Rudolf Spieth Einrichtung zum Einstellen des Lagerspiels zwischen einer Welle und einer Gleitlagerbuechse
US3337222A (en) * 1964-09-25 1967-08-22 Watt V Smith Quick acting submarine shaft seal
DE3819879A1 (de) * 1987-06-24 1989-01-05 Safematic Ltd Oy Verfahren und anordnung zum anziehen von geflochtenen abdichtungen
DE4018897A1 (de) 1990-06-13 1992-03-19 Klaus Juergen Nord Dauerhafte automatische nachstellende abdichtung fuer rotierende wellen
DE4210701C2 (de) 1991-06-18 1994-06-16 Klueber Lubrication Dichtungsanordnung
EP0692645A1 (fr) * 1994-07-15 1996-01-17 Volkswagen Aktiengesellschaft Palier d'un arbre de transmission
DE4440895C1 (de) 1994-11-17 1996-05-15 Buck Chem Tech Werke Vorrichtung zum Herstellen einer dichten Kupplungsverbindung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE754340C (de) * 1940-01-31 1952-01-31 Kurt Dr-Ing Schoene Stopfbuechse fuer Kolbenpumpen
DE1190741B (de) * 1962-03-09 1965-04-08 Rudolf Spieth Einrichtung zum Einstellen des Lagerspiels zwischen einer Welle und einer Gleitlagerbuechse
US3337222A (en) * 1964-09-25 1967-08-22 Watt V Smith Quick acting submarine shaft seal
DE3819879A1 (de) * 1987-06-24 1989-01-05 Safematic Ltd Oy Verfahren und anordnung zum anziehen von geflochtenen abdichtungen
DE4018897A1 (de) 1990-06-13 1992-03-19 Klaus Juergen Nord Dauerhafte automatische nachstellende abdichtung fuer rotierende wellen
DE4210701C2 (de) 1991-06-18 1994-06-16 Klueber Lubrication Dichtungsanordnung
EP0692645A1 (fr) * 1994-07-15 1996-01-17 Volkswagen Aktiengesellschaft Palier d'un arbre de transmission
DE4440895C1 (de) 1994-11-17 1996-05-15 Buck Chem Tech Werke Vorrichtung zum Herstellen einer dichten Kupplungsverbindung

Cited By (7)

* Cited by examiner, † Cited by third party
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GB2349673B (en) * 1999-05-01 2002-12-11 Pipeline Engineering And Suppl Bladder seal
DE19959856A1 (de) * 1999-12-10 2001-06-21 Coperion Waeschle Gmbh & Co Kg Verfahrenstechnischer Apparat, insbesondere Zellenradschleuse
DE19959856B4 (de) * 1999-12-10 2006-10-12 Coperion Waeschle Gmbh & Co. Kg Zellenradschleuse
DE10100408B4 (de) * 2001-01-02 2010-04-08 Hunger, Walter, Dr.-Ing. E.H. Abstreifvorrichtung zum Entfernen vo Schmutzpartikeln oder Ählichem von einer Kolbenstange
WO2007033421A1 (fr) * 2005-09-22 2007-03-29 Pump Technology Services Pty Ltd Ensemble d’étanchéité
DE102012110752A1 (de) 2012-11-09 2014-05-15 Krones Ag Vorrichtung und Verfahren zum Abdichten eines Maschinenteils gegenüber einem zweiten Maschinenteil

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