WO2020201188A1 - Système de corps de tuyau comportant un corps d'étanchéité annulaire, corps d'étanchéité annulaire et procédé d'installation d'un tel système de corps de tuyau - Google Patents

Système de corps de tuyau comportant un corps d'étanchéité annulaire, corps d'étanchéité annulaire et procédé d'installation d'un tel système de corps de tuyau Download PDF

Info

Publication number
WO2020201188A1
WO2020201188A1 PCT/EP2020/058903 EP2020058903W WO2020201188A1 WO 2020201188 A1 WO2020201188 A1 WO 2020201188A1 EP 2020058903 W EP2020058903 W EP 2020058903W WO 2020201188 A1 WO2020201188 A1 WO 2020201188A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
sealing lip
tubular body
foot
primary
Prior art date
Application number
PCT/EP2020/058903
Other languages
German (de)
English (en)
Inventor
Samuel Kohler
Original Assignee
Mahle International 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 Mahle International Gmbh filed Critical Mahle International Gmbh
Priority to DE112020001722.2T priority Critical patent/DE112020001722A5/de
Publication of WO2020201188A1 publication Critical patent/WO2020201188A1/fr

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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • F16L17/03—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips
    • F16L17/035—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips the sealing rings having two lips parallel to each other
    • 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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
    • F16J15/106—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure homogeneous
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement

Definitions

  • the invention relates to a tubular body arrangement with an annular
  • Sealing body an annular sealing body for such a pipe body arrangement and a method for assembling such a pipe body arrangement.
  • O-rings which have a circular profile.
  • a disadvantage of O-rings is that a comparatively high assembly force is required when assembling a pipe body arrangement with an O-ring and the tightness in the case of overpressure and underpressure of a fluid channel bounded by the pipe body arrangement compared to a pipe body arrangement surrounding external environment can only be unsatisfactorily guaranteed.
  • so-called X-rings correspond to the prior art, which have a cruciform cross-section. X-rings are also associated with various disadvantages, such as a relatively high assembly force when producing a tubular body arrangement with an X-ring and comparatively high production costs for the X-ring itself
  • Lip sealing rings are known which are used in particular for sealing a tubular body arrangement in a predetermined sealing direction, which results from a pressure gradient between a pressure in the fluid channel limited by the raw body arrangement and the ambient pressure in the environment surrounding the tubular body arrangement.
  • the basic idea of the invention is accordingly to design an annular sealing body of a tubular body arrangement with a sealing base and with three sealing lips arranged on this.
  • the sealing body is thus deformable in an assembled state of the tubular body arrangement with two tubular bodies and the annular sealing body that two of the sealing lips can be placed against one tubular body, the sealing base being in contact with the other tubular body.
  • a fluid channel delimited by the tubular body arrangement can be effectively sealed by means of the sealing body from the external environment surrounding the tubular body arrangement, independently of a pressure gradient between the fluid channel and its surroundings. This goes hand in hand with the fact that the sealing body can be mounted independently of the sealing direction.
  • a tubular body arrangement according to the invention comprises an annular sealing body, in particular a sealing ring, and a first and a second tubular body.
  • the tubular body arrangement can in particular be designed as an air, fuel or oil line arrangement.
  • Such a tubular body arrangement can be used in particular in a motor vehicle.
  • the first and the second tubular body of the tubular body arrangement are in one
  • the two nested tubular bodies are connected to one another by means of a sealing body.
  • Sealing body the fluid channel delimited by the tubular bodies of the tubular body arrangement is sealed off from an external environment.
  • the sealing body has a sealing base on which a primary sealing lip is arranged protruding. At a distance from the sealing base, two secondary sealing lips are formed on both sides protruding from the primary sealing lip.
  • the sealing base extends in the profile of the sealing body in a base direction to which the primary sealing lip protrudes transversely from the sealing base.
  • a first and a second secondary sealing lip protrude in the profile of the sealing body opposite one another and arranged at a distance from the sealing base in the state without substantial external load along the base direction from the primary sealing lip on both sides.
  • the profile of the ring-shaped sealing body thus has a partially cross-like or x-like shape, the sealing base being in the form of a thickening at one end of an axis of the cross-like shape of the profile formed by the primary sealing lip.
  • the fluid channel in the tubular body arrangement can be sealed particularly effectively by means of the sealing body, independently of the sealing direction, with respect to the external environment surrounding the tubular body arrangement.
  • the primary sealing lip of the sealing body is designed to taper away from the sealing base in the profile of the sealing body.
  • the first and / or the second secondary sealing lip of the sealing body can be designed to taper away from the primary sealing lip.
  • Sealing bodies can expediently have a radius at their ends facing away from the sealing body. As a result of this tapered design of the primary or one or both secondary sealing lips, they can be placed particularly well on a sealing surface of one of the tubular bodies in order to achieve a particularly good seal.
  • the sealing foot has a first and a second foot section, the first foot section merging into the second foot section along the foot direction.
  • the sealing body comprises a compensation groove, the groove bottom of which is delimited by the primary sealing lip and the groove flanks of which are delimited by the first
  • Such a compensating groove can be formed in an analogous manner on both sides of the primary sealing lip, the groove bottom then being delimited by one side of the primary sealing lip and the groove flanks being delimited by one of the secondary sealing lips and one of the foot sections.
  • Deformation of the sealing body in an assembled state in which the sealing body is installed in a tubular body arrangement to compensate for or to allow improved.
  • a particularly effective sealing of a fluid channel delimited by the tubular body arrangement with respect to the surroundings surrounding the tubular body arrangement can be achieved.
  • An assembly force to be applied by a worker for assembling the sealing body in the tubular body arrangement is advantageously reduced.
  • the compensation groove in the profile of the sealing body is in the foot direction
  • the groove flanks of the compensation groove are arranged in the profile of the sealing body at an acute angle to one another. It is thus advantageously achieved that when the sealing body is deformed in the assembled state of the tubular body arrangement with the sealing body, one of the secondary sealing lips can be better supported on the sealing base.
  • Secondary sealing lips preferably both of the secondary sealing lips, and the sealing base are integrally formed on the sealing body.
  • Sealing body can be manufactured particularly inexpensively in terms of cost, for example by means of a casting process in one cast. Alternatively, it is also possible that some of the sealing lips or the sealing foot on the
  • Sealing body are placed, whereby, for example, the sealing lips can be made of a material different from the sealing base.
  • a special embodiment of the tubular body arrangement provides that the secondary sealing lips, when viewed in profile, protrude perpendicularly from the primary sealing lip in the state without significant external load.
  • Such an arrangement of the secondary sealing lips enables a particularly effective sealing of a fluid channel delimited by the tubular body arrangement with the sealing body with respect to the environment surrounding the tubular body arrangement on the outside.
  • the sealing body expediently comprises a resilient material or consists of such a resilient material. This advantageously means that in the assembled state of a tubular body arrangement with the sealing body as a result of the deformation of the sealing body and the
  • End portion of the first tubular body connects to the second tubular body in the region of a second axial end portion.
  • Pipe bodies overlaps the first end portion of the first pipe body with the second axial end portion of the second pipe body that the sealing body is arranged radially between the two pipe bodies.
  • a particularly effective sealing of the fluid channel delimited by the tubular body arrangement with respect to the surroundings surrounding the tubular body arrangement is thus advantageously achieved.
  • a receiving groove is provided in the first axial end section of the first tubular body.
  • the receiving groove is annular in a wall of the first tubular body.
  • the sealing body is received in the receiving groove, the sealing foot resting against the base of the receiving groove along the foot direction.
  • the primary sealing lip and the secondary sealing lips of the sealing body are expediently elastically deformed in comparison to their shape in a state without significant external stress.
  • the secondary sealing lip can rest against the foot section adjacent to it and thus be supported on this foot section.
  • a particularly reliable sealing of the fluid channel is achieved both in the case of excess pressure and in the event of negative pressure in the fluid channel with respect to the surroundings of the tubular body arrangement.
  • the primary sealing lip preferably rests in the opposite direction to the first secondary sealing lip on the second tubular body opposite the sealing base.
  • the primary sealing lip abut against the foot direction and the first secondary sealing lip in the foot direction on the second tubular body.
  • the primary sealing lip is preferably pressed against the second tubular body.
  • the first secondary sealing lip is pressed against the second tubular body. If there is negative pressure facing away from the sealing body in the opposite direction to the foot, the primary sealing lip can be detached from the second tubular body, but the first secondary sealing lip is sucked against the second tubular body 9b by means of the negative pressure. Conversely, if there is negative pressure facing away from the sealing body in the foot direction, the first secondary sealing lip can be detached from the second tubular body, but the primary sealing lip is sucked against the second tubular body by means of the negative pressure.
  • the desirable sealing between the pipe bodies is achieved in any pressure condition.
  • an angle between the primary sealing lip and the first secondary sealing lip in the assembled state has a value of 90 ° to 180 °.
  • this angle between the primary sealing lip and the first secondary sealing lip Se is increased when mounting the tubular body assembly. This means that in the state without significant external load said angle is smaller than in the assembled state.
  • the primary sealing lip and the first secondary sealing lip are inclined in opposite directions relative to the second tubular body. This improves the sealing of the tubular body arrangement, which is independent of the direction of the pressure drop.
  • the invention also relates to an annular sealing body, which is preferably designed as a sealing ring, for a tubular body arrangement according to the invention as described above.
  • an annular sealing body which is preferably designed as a sealing ring, for a tubular body arrangement according to the invention as described above.
  • the geometry of the profile of the annular sealing body enables an improved seal, not least in terms of manufacturing and cost aspects
  • the sealing body has a sealing base on which a primary sealing lip is arranged protruding. At a distance from the sealing base, two secondary sealing lips are formed on both sides protruding from the primary sealing lip.
  • the sealing base extends in the profile of the sealing body in a base direction to which the primary sealing lip protrudes transversely from the sealing base.
  • a first and a second secondary sealing lip protrude in the profile of the sealing body opposite one another and arranged at a distance from the sealing base in the state without substantial external load along the base direction from the primary sealing lip on both sides.
  • the profile of the annular sealing body thus has a partially cross-like or x-like one p i nnAi sfv? R ⁇ / ⁇ / o
  • Sealing foot is designed to taper away.
  • first and / or the second secondary sealing lip can be designed to taper away from the primary sealing lip.
  • Each or one of the sealing lips can be attached to their
  • Sealing body facing away ends expediently have a radius.
  • Secondary sealing lips can be applied particularly well to a sealing surface of a tubular body in order to achieve a particularly good seal.
  • the sealing foot has a first and a second foot section, the first foot section merging into the second foot section along the foot direction.
  • the sealing body comprises a compensation groove, the groove bottom of which is delimited by the primary sealing lip and the groove flanks of which are delimited by the first
  • Such a compensating groove can be formed in an analogous manner on both sides of the primary sealing lip, the groove bottom then being delimited by one side of the primary sealing lip and the groove flanks being delimited by one of the secondary sealing lips and one of the foot sections.
  • the compensation groove in the profile of the sealing body tapers in the foot direction towards the primary sealing lip.
  • Flier pull is the deformation of the seal body in the
  • the assembled state can be compensated for particularly well.
  • the groove flanks of the compensating groove are arranged in the profile of the sealing body at an acute angle to one another. It is thus advantageously achieved that when the sealing body is deformed in the assembled state of a tubular body arrangement with the sealing body, one of the secondary sealing lips can be better supported on the sealing base.
  • Secondary sealing lips preferably both of the secondary sealing lips, and the sealing base are integrally formed on the sealing body.
  • Sealing body can be manufactured particularly inexpensively in terms of cost, for example by means of a casting process in one cast. Alternatively, it is also possible that some of the sealing lips or the sealing foot on the
  • Sealing body are placed, whereby, for example, the sealing lips can be made of a material different from the sealing base.
  • a special embodiment of the sealing body provides that the secondary sealing lips protrude perpendicularly from the primary sealing lip when viewed in profile when there is no significant external load.
  • Fluid channel with respect to an environment surrounding the tubular body arrangement outside.
  • the sealing body expediently comprises a resilient material or consists of such a resilient material. This advantageously means that in the assembled state of a tubular body arrangement with the sealing body as a result of the deformation of the sealing body and the
  • the sealing body according to the invention preferably corresponds to the following list:
  • Annular sealing body (1) in particular sealing ring,
  • tubular body arrangement (8) with tubular bodies (9a, 9b), preferably in a motor vehicle,
  • the sealing body (1) in profile, in particular in a state without significant external stress, has a sealing foot (2) extending along a foot direction (F) from which a primary sealing lip (3) protrudes transversely to the foot direction (F),
  • a first and a second secondary sealing lip (4a, 4b) protrude along the foot direction (F) from the primary sealing lip (3) on both sides, opposite one another and at a distance from the sealing foot (2).
  • the profile of the primary sealing lip (3) tapers away from the sealing base (2); or / and that
  • Foot section (5a) merges into a second foot section (5b),
  • the sealing body (1) has a compensating groove (6) to compensate for deformation of the sealing body (1) in an assembled state (7), the groove bottom (6a) of which is delimited by the primary sealing lip (3) and the groove flanks (6b, 6c) of the first Foot section (5a) of the sealing foot (2) and the first secondary sealing lip (4a) is limited.
  • Primary sealing lip (3) tapers out.
  • the two groove flanks (6b, 6c) of the compensation groove (6) are arranged in the profile at an acute angle (a) to one another.
  • the primary sealing lip (3) and / or a secondary sealing lip (4) preferably the first and the second secondary sealing lip (4a, 4b), and / or the
  • Sealing foot (2) are integrally formed on the sealing body (1).
  • the secondary sealing lips (4) are designed to extend perpendicular to the primary sealing lip (3) in profile in the state without significant external stress.
  • sealing body (1) in particular the primary sealing lip (3) and / or a secondary sealing lip (4), preferably the first and the second
  • Secondary sealing lip (4a, 4b) and / or the sealing base (2) consist of a resilient material or comprise a resilient material.
  • the invention also relates to a method for assembling a tubular body arrangement as presented above.
  • the method according to the invention has method steps a) to g). According to a first
  • Method step a) the first and the second tubular body and the sealing body are provided.
  • a further, second method step b) consists in arranging the sealing body in the axial end section of the first tubular body.
  • the sealing body can be arranged in a receiving groove in the axial end section of the first tubular body.
  • Method step c) provides that the first and the second tubular body are pushed into one another. This sliding into one another can preferably take place telescopically. When they are pushed into one another, the sealing body is arranged between the first and the second tubular body in the area of the two axial end sections of the tubular body.
  • a fourth step d) the p i nnAi sfv? R ⁇ / ⁇ / o
  • Method step f) provides that the first secondary sealing lip is applied to the second axial end section of the second tubular body.
  • both the primary sealing lip and the first secondary sealing lip then rest on the second axial end section of the second tubular body.
  • Process step g) is the primary sealing lip and / or the first
  • the second secondary sealing lip is expediently moved until it comes into contact with the second foot section.
  • Fig. 1 is an example of a profile of a sealing body according to the invention
  • FIG. 2 to Fig. 4 deformation states of the profile of the exemplary sealing body during assembly of a tubular body arrangement according to the invention with the sealing body as snapshots,
  • Fig. 5 to Fig. 7 shows an example of a tubular body arrangement according to the invention with the sealing body in various snapshots during assembly in perspective views, pmnA i Rfv? R ⁇ / vo
  • Fig. 8 shows an exemplary tubular body arrangement in a perspective exploded view.
  • FIG. 1 shows an example of a profile of an annular sealing body 1 according to the invention.
  • the sealing body 1 can be designed as a sealing ring and is used for the fluid-tight connection of tubular bodies 9 of a fluid line.
  • the tubular body 9 can limit an air, fuel or oil line, for example in a motor vehicle.
  • the sealing body 1 In a substantially or even completely unloaded state, the sealing body 1 has the profile shown in FIG. This state without significant external stress exists, for example, as long as the sealing body 1 has not yet been installed in a tubular body arrangement 8.
  • the sealing body 1 has in profile in the state without significant external load on a sealing base 2, which extends along a base direction F it.
  • a first foot section 5a merges into a second foot section 5b along a foot direction F.
  • a primary sealing lip 3 projects from the sealing base 2 transversely to the base direction F.
  • a first and a second secondary sealing lip 4a, 4b protrude from the primary sealing lip 3 at a distance from the sealing base 2 on both sides of the primary sealing lip 3 and opposite one another.
  • the primary sealing lip 3 tapers away from the sealing base 2.
  • the first and / or the second secondary sealing lip 4a, 4b can taper away from the primary sealing lip 3.
  • a compensation groove 6 is arranged on both sides of the primary sealing lip 3 between tween the sealing base 2 and the secondary sealing lips 4.
  • a deformation of the Dichtungskör pers 1 in an assembled state 7 can be compensated for by means of the compensating grooves 6.
  • the compensation groove 6 is delimited by a groove bottom 6a and two groove flanks 6b, 6c.
  • the groove flanks 6b, 6c are from the first foot section 5a and the second foot section 5b of the p i nnAi sfv? R ⁇ / ⁇ / o
  • the primary sealing lip 3 correspondingly forms the groove bottom 6a.
  • the compensation groove 6 tapers in the profile of the sealing body 1 parallel to the foot direction F to the primary sealing lip 3.
  • the two groove flanks 6b, 6c of the compensation groove 6 are arranged in the profile of the sealing body 1 at an acute angle ⁇ to one another.
  • the primary sealing lip 3 and the secondary sealing lips 4 as well as the sealing base 2 are formed integrally on the sealing body 1 in the example of FIG.
  • the secondary sealing lips 4 extend in the profile of the sealing body 1, as can be seen in FIG. 1, at least in the state without significant external loading perpendicular to the primary sealing lip 3.
  • the secondary sealing lips 4 it is also conceivable to use the secondary sealing lips 4 to be arranged at an acute or obtuse angle to the primary sealing lip 3.
  • the sealing body 1 expediently consists of a resilient material or comprises such a resilient material. It is also possible that only the primary sealing lip 3 and / or one or both secondary sealing lips 4 and / or the sealing base 2 consist at least partially of the resilient material.
  • FIGS. 2 to 4 show in various snapshots how the sealing body 1, viewed in profile, is deformed during the assembly of a tubular body arrangement 8 with such a sealing body 1.
  • a state of assembly 7 of the tubular body arrangement 8 is shown.
  • Such a tubular body arrangement 8 can be implemented, for example, as an air, fuel or oil line arrangement with tubular bodies 9, for example in a motor vehicle.
  • the tubular body arrangement 8 comprises a first and a second tubular body 9a, 9b.
  • the first and the second tubular body 9a, 9b are in the Zusbauzu stand 7 telescopically and releasably plugged into one another.
  • the tubular bodies 9 together delimit a fluid channel 10.
  • the first tubular body 9a has a first axial end portion 12a
  • the second tubular body 9b has a second axial end portion 12b.
  • the first axial end portion 12a of the first tubular body 9a and the second axial Endab section 12b of the second tubular body 9b are arranged in the assembled state 7 of the tubular body arrangement 8 overlapping one another.
  • the sealing body 1 is arranged radially between the two tubular bodies 9, that is to say radially between the first axial end section 12a of the first tubular body 9a and the second axial end section 12b of the second tubular body 9b.
  • the sealing body 1 connects the first tubular body 9a with the second tubular body 9b in the overlap area of the first axial end section 12a of the first tubular body 9a with the second axial end section 12b of the second tubular body 9b.
  • the sealing body 1 is also received in a receiving groove 13. On the receiving groove 13 is formed circumferentially on the first tubular body 9a. As can be seen in particular in FIGS. 2 to 4, the sealing base 2 rests on the base 13 a of the receiving groove 13 along the base direction F. Flierzu the Dichtungskör by 1 and the receiving groove 13 are geometrically matched.
  • the sealing body 1 is deformed compared to a state without significant external stress. This deformation can be understood, for example, by comparing the profile of the sealing body 1 in FIG. 2 and FIG. 4.
  • both the primary sealing lip 3 and the first secondary sealing lip 4a rest on the second axial end section 12b of the second tubular body 9b.
  • the primary sealing lip 3 and the first secondary sealing lip 4a Due to the elastic deformation of the primary sealing lip 3 and the first secondary sealing lip 4a, the primary sealing lip 3 and the first secondary sealing lip 4a are in front of the second axial end section 12b of the second tubular body 9b.
  • the sealing body 1 is designed so that the sealing base 2 is located radially on the outside and the primary sealing lip 3 and the secondary sealing lip 4 arranged on the primary sealing lip 3 are located radially on the inside. It is also conceivable to arrange the sealing base 2 radially on the inside and the primary sealing lip 3 as well as the secondary sealing lips 4 projecting from the primary sealing lip 3 on the radially outside.
  • the scope of the present invention also extends to a method for assembling the tubular body arrangement 8, as has already been described above with reference to FIGS. 2 to 4.
  • This method for mounting or assembling the tubular body arrangement 8 can also be understood with the aid of FIGS. 5 to 7.
  • the method for assembling the tubular body assembly 8 comprises several steps. In a first step a) the first and the second tubular body 9a, 9b and the sealing body 1 are provided. Then, as shown for example in Figures 6 and 7, the sealing body 1 is arranged according to a second step b) in the axial end portion 12a of the first tubular body 9a. The sealing body 1 is received in the receiving groove 13 shown in FIGS. 5 and 8.
  • a third process step c) the first and the second tubular body 9a, 9b are pushed telescopically into one another. It goes without saying that for this purpose the outer and inner diameters of the two tubular bodies 9a, 9b are matched to one another accordingly.
  • the method for assembling a tubular body arrangement 8 comprises, in addition to the fourth step d), in which the primary sealing lip 3 is applied to the axial end section 12b of the second tubular body 9b.
  • This method step d) can also be understood in particular with the aid of FIG.
  • fifth step e) the primary sealing lip 3 is elastically deformed against the second axial end section 12b of the second tubular body 9b.
  • the first secondary sealing lip 4a arranged on the primary sealing lip 3 is moved in the direction of the second axial end section 12b of the second tubular body 9b.
  • the first secondary sealing lip 4a is moved away from the first foot portion 5a of the sealing body 1 adjacent to it.
  • the second secondary sealing lip 4b arranged opposite the first secondary sealing lip 4a on the primary sealing lip 3 is moved as a result of the deformation of the primary sealing lip 3 in the direction of the second base section 5b adjacent to it.
  • the first secondary sealing lip 4a is also applied to the second axial end section 12b of the second tubular body 9b in addition to the primary sealing lip 3.
  • the primary sealing lip 3 and the first secondary sealing lip 4a are biased against the second axial end section 12b of the second tubular body 9b as a result of the elastic deformation in step e) in a seventh step g).
  • a limited by the first tubular body 9a and the second tubular body 9b fluid channel 10 ge compared to an external environment 11 of the tubular body assembly 8 is effectively sealed off.
  • the second secondary sealing lip 4b is also supported on the second foot section 5b adjacent to it.
  • the sealing body 1 is already arranged in the receiving groove 13 of the first tubular body 9a according to method step b).
  • step c) of the first and the second tubular body 9a, 9b the telescopic sliding into one another takes place according to step c) of the first and the second tubular body 9a, 9b.
  • step d) the primary sealing lip 3 according to step d) is placed on the second axial end section 12b of the second tubular body 9b.
  • step e) of the primary sealing lip 3 can also be seen, as a result of which the first secondary sealing lip 4a is moved in the direction of the second axial end section 12b of the second tubular body 9b and the second secondary sealing lip 4b is moved in the direction of the second base section 5b adjacent to it .
  • the first secondary seal is in a step f) p i nnAi sfv? R ⁇ / ⁇ / o
  • tubular body arrangement 8 is illustrated in the assembled state 7 as a result of the implementation of the method for assembling such a tubular body arrangement 8.
  • FIGS. 1-10 further snapshots of the method for assembling a tubular body arrangement 8 are illustrated in perspective representations in FIGS.
  • FIGS. 5 and 6 illustrate method step b), according to which the sealing body 1 is arranged in the receiving groove 13 in the region of the first axial end section 12a of the first tubular body 9a.
  • the sealing body 1 is already arranged in the receiving groove 13 in the end section 12a of the first tubular body 9a and the second tubular body 9b can be pushed into the first tubular body 9a according to process step c) so that the first axial end section 12a of the first Tubular body 9a telescopically overlaps with the second axial end portion 12b of the second tubular body 9b.
  • FIG. 8 shows the components of the tubular body arrangement 8 in perspective in an exploded view.
  • the first tubular body 9a with the receiving groove 13 and the annular sealing body 1 and the second tubular body 9b are illustrated here.
  • FIG. 4 also shows that the primary sealing lip 3 in the assembled state 7 rests in the opposite direction to the first secondary sealing lip 4a on the second tubular body 9b opposite the sealing base 2.
  • the primary sealing lip 3 rests against the foot direction F and the first secondary sealing lip 4a rests against the second tubular body 9b in the foot direction.
  • the primary sealing lip 3 is pressed against the second tubular body 9b. If the pressure gradient in the foot direction F increases, the first secondary sealing lip 4a is pressed against the second Rohrkör by 9b. If there is negative pressure facing away from the sealing body 1 against the foot direction F, the primary sealing lip 3 can be detached from the second tubular body 9b, but the first secondary sealing lip 4a is sucked against the second tubular body 9b by means of the negative pressure. If there is negative pressure facing away from the sealing body 1 in the foot direction F, the first secondary sealing lip 4a can be detached from the second tubular body 9b, but the primary sealing lip 3 is sucked against the second tubular body 9b by means of the negative pressure. Thus, the reliable sealing between tween the pipe bodies 9a, 9b is achieved in every pressure state.
  • FIG. 4 shows that an angle between the primary sealing lip 3 and the first secondary sealing lip 4a in the assembled state 7 has a value of 90 ° to 180 °.
  • a comparison of the figures 2 and 4 shows that this angle between the primary sealing lip 3 and the first secondary sealing lip 4a is increased when the tubular body arrangement 8 is installed. This means that in the state shown in Figure 2 without significant external load, said angle is smaller than in the assembled state 7 illustrated in Figure 4.
  • the primary sealing lip 3 and the first secondary sealing lip 4a are in opposite directions to the second tubular body 9b Inclined direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Gasket Seals (AREA)

Abstract

L'invention concerne un système de corps de tuyau (8) comportant un premier et un second corps de tuyau (9a, 9b) qui, lorsqu'ils sont emboîtés l'un dans l'autre de manière amovible dans un état assemblé (7), délimitent un canal de fluide (10), les deux corps de tuyau (9a, 9b) emboîtés l'un dans l'autre étant reliés ensemble au moyen d'un corps d'étanchéité annulaire (1) de sorte que le corps d'étanchéité (1) permet l'étanchéité du canal de fluide (10) par rapport à un environnement extérieur (11) des deux corps de tuyau (9), le corps d'étanchéité (1) présentant dans le profil, en particulier dans un état sans charge extérieure sensible, un pied d'étanchéité (2) s'étendant le long d'une direction de pied (F), à partir duquel pied d'étanchéité une lèvre de d'étanchéité primaire (3) fait saillie transversalement à la direction de pied (F). Une première et une seconde lèvre d'étanchéité secondaire (4a, 4b), des deux côtés et opposées l'une à l'autre et à distance par rapport au pied d'étanchéité (2), font saillie à partir de la lèvre d'étanchéité primaire (3) le long de la direction de pied (F) dans le profil, en particulier dans l'état sans charge extérieure sensible.
PCT/EP2020/058903 2019-04-01 2020-03-30 Système de corps de tuyau comportant un corps d'étanchéité annulaire, corps d'étanchéité annulaire et procédé d'installation d'un tel système de corps de tuyau WO2020201188A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112020001722.2T DE112020001722A5 (de) 2019-04-01 2020-03-30 Rohrkörper-Anordnung mit einem ringförmigen Dichtungskörper, ringförmiger Dichtungskörper und Verfahren zur Montage einer solchen Rohrkörper-Anordnung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019204593.6A DE102019204593A1 (de) 2019-04-01 2019-04-01 Ringförmiger Dichtungskörper, Rohrkörper-Anordnung mit einem solchen ringförmigen Dichtungskörper und Verfahren zur Montage einer solchen Rohrkörper-Anordnung
DE102019204593.6 2019-04-01

Publications (1)

Publication Number Publication Date
WO2020201188A1 true WO2020201188A1 (fr) 2020-10-08

Family

ID=70289371

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/058903 WO2020201188A1 (fr) 2019-04-01 2020-03-30 Système de corps de tuyau comportant un corps d'étanchéité annulaire, corps d'étanchéité annulaire et procédé d'installation d'un tel système de corps de tuyau

Country Status (2)

Country Link
DE (2) DE102019204593A1 (fr)
WO (1) WO2020201188A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4216305A1 (de) * 1991-08-29 1993-03-04 Gerhard Arlt Spreizringfixierte steckmuffendichtung fuer rohre und kupplungen
EP0540779A1 (fr) * 1991-11-08 1993-05-12 WOCO Franz-Josef Wolf & Co. Garniture d'étanchéité

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1025704A (en) * 1962-03-13 1966-04-14 Dowty Seals Ltd Improvements in sealing devices
DE102015226513B4 (de) * 2015-12-22 2019-02-21 Ralph Peter Hegler Bausatz für eine Rohrverbindung und Dichtungs-Ring für eine solche Rohrverbindung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4216305A1 (de) * 1991-08-29 1993-03-04 Gerhard Arlt Spreizringfixierte steckmuffendichtung fuer rohre und kupplungen
EP0540779A1 (fr) * 1991-11-08 1993-05-12 WOCO Franz-Josef Wolf & Co. Garniture d'étanchéité

Also Published As

Publication number Publication date
DE102019204593A1 (de) 2020-10-01
DE112020001722A5 (de) 2021-12-16

Similar Documents

Publication Publication Date Title
EP3134670A1 (fr) Module connecteur
EP1270987A2 (fr) Support pour un agrégat en forme de manchon
DE10010573C1 (de) Anschluss-Vorrichtung für ein Rohr
DE3906967C1 (fr)
DE202012009001U1 (de) Arbeitszylinder
DE202005021617U1 (de) Biegefeste Kolbenzylindereinheit
EP3121497B1 (fr) Vanne de regulation permettant de regler un flux de fluide de procede d'une installation de processus technique
EP3797232B1 (fr) Segment de piston à segment racleur d'huile, en plusieurs parties, à faible frottement
EP3277977B1 (fr) Amortisseur axial
EP2913508B1 (fr) Procédé de montage d'une cuvette-carter et agencement d'une cuvette-carter sur un bloc formé par un carter de vilebrequin et un carter-volant
WO2020201188A1 (fr) Système de corps de tuyau comportant un corps d'étanchéité annulaire, corps d'étanchéité annulaire et procédé d'installation d'un tel système de corps de tuyau
DE3150231A1 (de) Verschlussdeckel, insbesondere fuer einen kuehlerstutzen eines kraftfahrzeugs
DE10235904A1 (de) Ringfiltereinsatz für ein Fluidfilter
EP2466172B1 (fr) Bague d'étanchéité
WO2021058282A1 (fr) Élément filtrant destiné à être utilisé dans un filtre et filtre comprenant un élément filtrant
EP3580463B1 (fr) Dispositif comportant un piston, un cylindre et au moins un tube intérieur et au moins un tube extérieur
DE4317483A1 (de) Kolben, insbesondere für den Servozylinder einer Hilfskraftlenkanlage
DE102019133669A1 (de) Vorrichtung mit einem Bauteil und einem Ventilgehäuse
EP0639695B1 (fr) Joint de tige de soupape
EP2982893B1 (fr) Dispositif de serrage de tuyau
DE202008006653U1 (de) Steckbare Rohrverbindung
WO2010139655A1 (fr) Bague d'étanchéité d'arbre
DE102015226536A1 (de) Kabelverschraubung
WO2015124348A1 (fr) Piston flottant pour amortisseur de vibrations
WO2021058281A1 (fr) Agencement de joint d'étanchéité pour un filtre, en particulier un filtre à air comprimé, et élément filtrant pour un filtre

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20719121

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: R225

Ref document number: 112020001722

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20719121

Country of ref document: EP

Kind code of ref document: A1