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
  • F16L35/00—Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
• • 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
  • F16L37/00—Couplings of the quick-acting type
  • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
  • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
  • F16L37/088—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
• • 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
  • F16L37/00—Couplings of the quick-acting type
  • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
  • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
• • 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
  • F16L37/00—Couplings of the quick-acting type
  • F16L37/50—Couplings of the quick-acting type adjustable; allowing movement of the parts joined
  • F16L37/505—Couplings of the quick-acting type adjustable; allowing movement of the parts joined allowing substantial longitudinal adjustment or movement
• • 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
  • F16L51/00—Expansion-compensation arrangements for pipe-lines
• • 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
  • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
  • F16L53/30—Heating of pipes or pipe systems
  • F16L53/35—Ohmic-resistance heating
  • F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons

Definitions

• Line connection device for releasably connecting media lines or at least one media line and at least one aggregate
• the invention relates to a line connection device for releasable
• Region of the coupling portion is dimensioned so that at least one
• Plug-in space for Questionsteck the plug part when inserting and locking the same is provided in the coupling portion of the line connecting device, and a line system.
• Line connection devices for releasably connecting, ie for connecting and disconnecting, at least two medium-flow ble media lines or a media line with an aggregate or a connection device of an aggregate are known in the art. Especially in vehicles media lines are provided for conducting liquid media. For coupling or huddling together several media lines
• line connecting devices in particular in the form of a coupling part, provided in which a coupling portion and a plug part are connected together.
• Such line connection devices serve not only for connecting at least two media lines with each other, but also for connecting a media line with any aggregate or any component, such as a metering unit in the region of a motor vehicle engine or a pump to a motor vehicle tank.
• the freeze-endangered media threaten to freeze in the media line and line connection device, which is why it is customary to provide a heatability of the media line and the line connection device.
• the line connection devices can in this case be designed as SCR couplings or SCR plug parts, wherein these can be used in a similar form for other media.
• SCR plug parts usually have a circumferential retaining collar, which must be plugged so far into this when connecting to a coupling part or coupling portion of a line connecting device, that the retaining collar engages behind a retaining element on the coupling part or section. For this purpose, a so-called. Over-plugging is required, so with regard to the actual detent position in the interior of the coupling part or section excessive insertion into the interior of the
• Coupling part or section to allow the engaging behind the retaining element is disclosed in WO 20137083274 A1.
• an ice column builds up, which may migrate within the line or may lead to an increasing freezing of the medium contained within the conduit, such as aqueous urea solution. This already freezes at temperatures below -11 ° C.
• aqueous urea solution such as aqueous urea solution.
• the freezing medium expands.
• the volume increase due to the change in the state of aggregation of the medium from liquid to solid can be at least partially compensated, as yet
• Frozen medium in the media line or connected to this line connection device is present. If necessary, freezing medium can be displaced in the direction of the not yet frozen medium, whereby this is possible only until a pressure equilibrium is reached.
• Elongated ice columns are usually difficult to move within the media line, depending on the design of the Media line or associated with this line connection device, the configuration of the combination of media line and
• Line connection device and the order of freezing of the various areas of the media line or connected to this line connection device is.
• Media line and aggregate prove when freezing the medium within the piping system, consisting of the media lines and aggregates with between or at the ends arranged
• Line connection device can cause a plugged-in there plug part is pressed out of the coupling portion of the line connecting device by the growing ice column, thus the connector of coupling portion of the line connection device and plug part is unintentionally released. This occurs especially in long lines, such as lines that have a length of 5 m, because with such a long lines can build up a particularly large ice column under very strong pressure in the release direction of the connector plug part and coupling portion of the line connection device a Apply ice pressure and thus to a release of the connector of the plug part and coupling portion of the
• EP 2 455 645 A1 proposes to provide a pressure compensation chamber between the first and second connection ends of a connector for connecting at least two receiving elements for a fluid medium.
• a compressible insert is arranged in the pressure compensation chamber.
• the compressible insert is partially on the
• Pressure equalization chamber and the compressible insert is provided at least one longitudinal channel for fluid communication between the first and the second terminal end. At a temperature-related volume expansion of the fluid medium of the compressible insert is compressed.
• the Pressure compensation chamber is in particular cylindrical, as well as the compressible insert.
• the pressure compensation chamber is made of plastic.
• the compressible insert is reversibly deformable, this one at a
• the compressible insert is therefore made of an elastic material, in particular of a
• Plastic foam such as a closed-cell plastic foam.
• the compressible insert may lose compressibility over time due to aging of its material or even freeze medium within the pressure equalization chamber in the longitudinal channels provided therein
• the present invention is therefore based on the object, a
• Line connecting device for releasably connecting at least two medium-flow through media lines or a media line and an aggregate according to the preamble of claim 1 to the effect that even without providing such a pressure compensation chamber a
• a connecting device characterized in that at least one device is provided which flows in an intermediate state between an operating state in which medium flows through the media line (s) and the line connecting means, and a freezing condition in which the medium within the media conduit (s) and conduit connection means is frozen, reducing the volume of the interior cavity and / or sealing a portion of the interior cavity from ingress of media and / or ice.
• a line system comprising at least one
• Line connection means is provided for flowing through or passage of medium, as far as possible is reduced, in particular the plug-in space, for inserting a plug part in the
• Line connection device is required to a retaining collar of the male part behind a retaining element of a coupling portion of
• Lock line connection device In the intermediate state between the operation of the conduit system under operating pressure, wherein the medium flows through the at least one media line and the line connection means, and at low ambient temperatures freezing medium, thus formed medium ice in media line (s) and
• Cable connection device are reduced as much as possible. This area can be reduced at the right time, namely when, after the operating state at rest, a freezing of the medium could be imminent in this intermediate time.
• Provided return device which is the plug part or at least one with the plug part in contact or connection component relative to
• Coupling section shifts so that the or the Mattersteckbank be reduced and / or a force acting in the direction of insertion on the plug part and / or a counter-pressure against a force acting on the plug part, directed against the direction of insertion force applying
• the plug-in space can be located both in front of the front end of the plug part or around this inside the coupling portion of the line connecting device and on the outside around the plug part radially between the outside of the
• Coupling section prevents, be provided. Measures for reducing both Uberstecksammlung or at least one of the two Uberstecksammlung be described here. These may be purely geometric in nature, however, are also formed in the form of fittings between the plug part and the coupling portion, these measures can be provided not only individually, but also in combination with each other. The same applies to the possible measures for reducing the flow-through space within the line connection device, ie the internal cavities through which the medium flows from one media line to the other or from a media line to an aggregate.
• the device is an elastic device, in particular a
• Coupling section for sealing the gap between the
• Coupling section provided sealing elements by means of the elastic Device so far in the axial direction parallel to the longitudinal extension of the plug part in the direction of the front end to move that also around the plug part between this and the inner wall of the
• Coupling section provided over-plugging space is sealed by the sealing elements, so they are then in the Mattersteckraum. Due to the usually existing elasticity of the sealing elements, these can be compressed during the plugging operation of the plug part in the coupling portion and in particular when plugging the plug part, but return to their original form or at least approximately return to their original form when relieving or in due to the action of the elastic device compressed shape.
• the restoring force applying means or the rear part device acts on a retaining collar of the male part axially, in particular of the counter to the insertion direction of the male part side facing the retaining collar, and within the coupling portion of
• an elastic element such as a spring element, rubber element, elastomer, etc.
• an element such as a spacer, which is located inside the
• Spring element acts, in particular under application of a bias.
• the element or spacer ring supporting elastic element engages behind the circumferential retaining collar of the plug part and accordingly exerts on the plug part the already mentioned axial compressive force in the insertion direction. This allows the plug part at its front end, ie at its the
• Plug-in space are reduced as much as possible or the plug part is in extend this permanently, as long as the elastic element acts on the plug part. This makes it possible that only a small amount of medium in the remaining part of the plug-in space at the front end of the
• Plug parts can remain. During freezing, the medium remaining there can exert only such a small compressive force on the plug part that in this way, in particular, also due to the force generated by the elastic element
• the restoring force applying or restoring device may comprise at least two retaining rings with arranged between these resilient element on a portion of the plug part, in particular in a circumferential groove or a portion of the plug part, which has a reduced diameter.
• Coupling section is pushed out. With decreasing ice pressure rather the restoring force of the elastic element acts to the effect that the plug part is pushed further into the push-in space (ie is moved axially in the insertion direction).
• the plug-in space in addition to the conical shape of the inner passage opening of the plug part, the above-described elastic element, the plug part in the insertion direction deep into the interior of the
• the tapered inner passage opening can be sized, for example, in terms of the inside diameter so that the clear width at the front end of the male part 1, 5 +/- 0.05 mm and at the opposite end of the male part 2 +/- 0.05 mm.
• the inner cavity in the interior of the line connection means which serves to flow through medium in order to allow it to flow from one media line to the other or to an aggregate, can thus be dimensioned smaller than heretofore, in particular have only the same clear manner as the inner ones
• the inner cavity or at least the respective part of this, which adjoins the connected to the Kausinformationseinnchtung media lines or to the plug part at the end a clear width of 1, 5 to 3 mm, preferably 2 mm, wherein the respective partial cavities, which are aligned with the media lines and their plug part and their inner through holes, inside the Line connection device can be blended together.
• the plug-in space as such is not reduced, but prevents penetration of medium into a part of the plug-in space, so that there can accumulate no medium, the
• Such a sealing device can be arranged for example in the front end region of the plug part, wherein the front end of the plug part or a front-side portion of the plug part in this case may have a relation to the other body of the plug part reduced outer diameter, so that the sealing element is added there.
• the sealing element may be on the outside of the
• the sealing device can be arranged in a circumferential groove of the plug part, away from the front end of the plug part, wherein a front-side end portion of the plug part in this case has a larger outer diameter than that
• the sealing element is arranged on the front end region of the plug part, that is to say the front end region of the plug part has a reduced diameter relative to the body of the plug part and if the sealing element is fitted there, it can be dimensioned such that it engages with the front end of the plug part flees. It is also possible to dimension and form the sealing element so that it bears against a wall of the line connecting device delimiting the plug-in space. As a result, the flow path is reduced by the wall thickness of the peripheral wall of the sealing element, so that only a smaller space is available in which to accumulate medium and freezing medium can exert an ice pressure.
• the sealing device in the form of at least one a retaining collar of the plug part over and / or
• Inner wall of the coupling portion of the line connecting device is sealed. While plugging in, this or that
• Sealing elements in particular O-rings and / or the mold ring, are elastically deformed and slightly spring back when relieved after passing, in particular a second retaining collar of the male part by the retaining element of the coupling portion, ie in their original shape or a
• Plug part receiving opening is arranged in the coupling portion, it can be prevented that medium in the surrounding part of the plug
• sealing elements may be arranged in the plug-in space, so that they when inserting the plug part in the coupling portion
• the at least one sealing device in the interior of the coupling section is advantageously supported and / or prevented from falling out, in particular by a terminating bushing.
• a terminating bushing makes it possible to support the at least one sealing device in the interior of the coupling section.
• the termination socket itself can be attached to locking lugs or
• a cohesive connection for example, by laser welding, friction or
• Ice pressure force is transmitted to the clutch collar and the pressure exerted on the sealing device and the terminal bushing ice pressure force acts on the cohesively mounted in the coupling portion terminating bushing.
• the cohesive connection can be formed, for example, as a segmented weld seam or as a circumferential, ie non-segmented, weld seam.
• the termination socket made of non-laser-transparent material to allow easy laser welding with the coupling section.
• At least the coupling section may consist of laser-transparent material, in particular the line connecting device or the entire coupling part, into which the plug part or parts can be inserted, consist of plastic, in particular laser-transparent material.
• the plug part can be at least substantially closable or closed end side and at least one lateral
• Plug parts is in flow communication.
• lateral outlet openings or at least one such lateral outlet opening a deflection of the medium takes place on exit from the interior of the plug part to the outside into the inner cavity of the line connection device. In this way, freezing medium or a medium-ice column can not be arbitrarily in this separation point between the plug part and coupling portion of
• Line connection device penetrate into it and unintentionally lead to a disconnection of the connector part due to the application of pressure. Rather, this prevents the freezing medium, since this first the lateral
• Outlet openings closes and thus prevents leakage of medium into the inner cavity in the coupling portion of the line connecting device, since lower volumes freeze faster than large.
• Sum of the inner diameter of the lateral outlet openings is less than or equal to the clear width of the inner passage opening at the front end of the plug part.
• the inner diameter of the at least one lateral outlet opening may be less than 2 mm.
• Through opening of the plug part has, for example, in dimensions of the plug part of 4 x 1 mm to a diameter of 2 mm. In the passenger car sector, dimensions of 5 x 1 mm are also common, resulting in a diameter of the inner through hole of the male part of 3 mm. in the
• the inner diameter or the inside diameter of the lateral outlet openings is smaller than the inner diameter of the through opening in the front end region of the plug part.
• the diameter can be varied, for example, opposing lateral
• Outlet openings have the same diameter, from the side
• Discharge openings which are arranged offset to these deviates.
• the inner diameter of the lateral outlet openings can be made aware of a restriction with respect to the flow with the flowing medium.
• Such throttling or reduction in volume by providing the lateral outlet openings can cause the medium which is present in the lateral outlet openings of the plug part, for example an SAE plug part, to freeze first and the resulting ice column to be pushed out of the line connection device becomes.
• a conically shaped through opening of the plug part as described above, have a supporting effect, since their diameter increases in the direction of the media line, thus the ice column can be easily pushed out of the plug part in this direction again.
• the plug part may be formed on the outside of the plug part outside flattened in the region of the exit point of the at least one lateral outlet opening.
• a reduction of the pressure loss of the flowing medium can be achieved.
• the at least one lateral outlet opening can be approximately at right angles to
• the at least one lateral outlet opening at an angle, in particular an obtuse angle, to the longitudinal axis of the inner passage opening of the plug part or its longitudinal axis, whereby pressure losses with respect to the flowing medium can be reduced and as a preventive cavitation measure.
• the lateral ones are also possible to arrange the at least one lateral outlet opening at an angle, in particular an obtuse angle, to the longitudinal axis of the inner passage opening of the plug part or its longitudinal axis, whereby pressure losses with respect to the flowing medium can be reduced and as a preventive cavitation measure.
• Outlet openings may also extend straight and / or bent from the inner through hole of the male part to the outside thereof. Except a complete end closure of the inner
• Plug parts are formed open with respect to the inner passage opening. Nevertheless, in order to be able to close the front end of the inner passage opening of the plug part in the freezing medium, that is to say in medium ice column formation, at least one closure part can be arranged in the inner, that is within the inner passage opening.
• the plug part can have an outlet opening in connection with the inner passage opening at the front and at least one inside the inner passage opening
• the closure part can through the itself
• the closure part is advanced with the forming ice column inside the inner passage opening of the plug part in the direction of the front end of the plug part and enters the there
• outlet opening which may have a reduced diameter relative to the inner passage opening of the plug part, in which the
• Closing part at least partially immersed is deformed with respect to its shape and / or its inner diameter and thus partially or completely closes the outlet opening provided at the front end of the plug part.
• Outlet opening of the plug part can be either with the inner
• the penetration of the Mediumeiskladle can be prevented in the coupling portion of the line connecting device.
• the freezing resistance in the region of the line connecting device in particular a separation point between individual media lines and / or a connection point to an aggregate is significantly increased, such as in the region of a connection device for a vehicle tank.
• the plug part described above can accordingly be the connection device of such a vehicle tank, that is to say be fixedly arranged on it, wherein a coupling part of a line connection device with which, for example, a media line is connected can be connected to this connection device, for example by plugging.
• volume compensation element with sealing function on the outside on a portion of the plug part.
• the volume compensation element is used for volume compensation when acting on the plug part
• Predeterminable pressure limit can be actively effected thereby.
• a pressure limit may be, for example, a pressure of 50 bar and more.
• the volume compensation element may in this case have at least one portion which is expandable with respect to its axial extent to one
• the volume compensation element on a spring elasticity.
• the volume compensation element consists of an elastomer or a combination of a solid, such as a metallic, material and an elastomer, wherein the metallic material may be embedded in the elastomers.
• the axial expandable section of the volume compensation element as a sleeve-like
• Element be formed and made of a resilient material, such as
• the elastomer may be, for example, EPDM.
• the volume compensation element can thus be in one or more parts
• the front end portion of the volume compensation element may have a larger outer diameter and / or beaded to provide the largest possible sealing surface available to over this front end a seal in a predeterminable pressure and / or temperature range in the operation of Systems, so in flowing medium to allow.
• a sealing ring for example a quadring or e.g. an O-ring, be provided, which also in a certain pressure and / or temperature range in the operation of
• Line connection device so if medium flows through them, cause a seal.
• a sealing ring may for example be accommodated between support rings to its position in the axial direction or
• FIG. 1 shows a longitudinal sectional view of a line connection device which is connected to two heatable media lines, wherein one of the two media lines is provided with a plug part and is inserted in a coupling section of the line connection device, a longitudinal sectional view of an inventive
• Line connection device for connecting two
• FIG. 1 a longitudinal sectional view of a plug part according to the invention for coupling with a line connecting device, wherein the plug part has a tapered to its front end through opening,
• FIG. 1 a longitudinal sectional view of another embodiment of a line connecting device according to the invention, in which an inventive provided with an elastic device in the form of an elastic member and two retaining rings plug part is inserted,
• FIG. 1 a longitudinal sectional detail view of another embodiment of a line connecting device according to the invention, in which an inventive end provided with a reduced diameter and a sealing element arranged there
• FIG. 6 a longitudinal sectional view of a comparison with the line connecting device shown in FIG. 6 modified embodiment of a line connecting device according to the invention, wherein the patch on the plug part sealing element up to a wall in Interior of the line connecting device, which limits the plug-in space extends,
• Plug part in the end region surrounding a sealing ring is provided, a longitudinal sectional view through an opposite
• Embodiment variant of Figure 8 modified embodiment of a line connection device according to the invention with inserted plug part according to the invention, wherein compared to the embodiment of Figure 8 except that in a
• FIG. 1 a longitudinal sectional detail view of another embodiment of a line connecting device according to the invention, in which radially around the plug part around arranged sealing elements is pushed there by a spring element into the push-in space and this is thereby reduced,
• FIG. 1 a longitudinal sectional detail view of another embodiment of a line connecting device according to the invention, in which a plug portion inserted in the coupling portion provided with retaining collar and this is surrounded by two sealing rings in the plug-in space of the line connection device, the dashed line showing the position of the plug part in the operating state under pressure and the solid lines the reset position without operating pressure,
• Embodiment of Figure 11 modified embodiment of a line connecting device according to the invention, in which, in contrast to the embodiment of Figure 1 1 instead of two sealing rings is provided a form-sealing element, a longitudinal sectional view of another embodiment of a line connecting device according to the invention with a lateral outlet opening according to the invention plug part, a perspective view of the plug part of Figure 13, a longitudinal sectional view of another embodiment of a connector part according to the invention with inner closure member, a side view of an inventively designed tank, a cross-sectional view of the tank according to FIG 16
• FIG. 3 is a longitudinal sectional view of a further embodiment of a line connecting device according to the invention, similar to that shown in FIGS. 10 and 10a,
• Embodiment variant according to FIG. 13 Embodiment variant according to FIG. 13.
• Figure 1 shows a longitudinal sectional view through a line connection device 1, which is connected to two media lines 2, 3.
• Line connection device 1 is formed as an angularly shaped coupling part with two coupling sections 10, 30. It is surrounded on the outside by an insulating encapsulation 4, the two media lines each of an insulating cladding tube, here in the embodiment as a corrugated tube 24, 34.
• the media line 2 ends another encapsulation 5 for isolation on the outside.
• the media line 3 is inserted into the coupling portion 30 and secured therein.
• the media line 2 is connected at the end to a plug part 6 which is plugged into a coupling section 10 of the line connection device 1 and which is surrounded by both the enclosure 4 and the enclosure 5 and is insulated.
• the plug part 6 has a circumferential retaining collar 60 along its longitudinal extension in the region which is inserted into the coupling section 10.
• the circumferential retaining collar 60 is used for locking the plug part 6 in the coupling section 10.
• the retaining collar 60 is engaged behind by a retaining element 7 provided at the end of the line connection device 1 and engaging in the interior of the coupling section 10.
• Coupling portion 10 it is necessary to advance the circumferential retaining collar 60 so far into the interior of the coupling portion 10 that this passes after initial retraction of the retaining element 7 due to the provided thereon bevel 70 on the holding member 7, the holding member 7 in the interior of the coupling portion 10 springs back and the way back to the outside for the retaining collar 60 and accordingly blocks the entire connector part 6. Subsequently, thus, the retaining collar 60 is supported on the retaining element 7 or the portion 71 of the retaining element 7 arranged in the interior of the coupling section 10.
• Plug part 6 are arranged surrounding to prevent leakage of medium from the coupling portion out. Without providing the sealing elements 8, 9 would be an outlet of medium, along the plug part of the
• Overthring 11 passes into the over-insertion space 11a, possible.
• Sealing rings 8, 9 are held by sealing element holding elements 80, 90 in their position in the interior of the coupling portion 10. All components 8, 9, 80, 90 together therefore form a packing.
• an inner cavity 12 is provided as a flow path for the passage or passage of the medium.
• the partial cavity 12b is very short and essentially comprises the push-on space 11.
• Such a line connection device 1 can be arranged, for example, in a vehicle in the region of a longitudinal member or subfloor.
• Line connection device 1 is pushed out. This is of course not desired and would lead to a leakage occurs at this point of the media line or accidentally exits the otherwise flowing through the pipe system of media lines and line connection device (s) and possibly other components flowing medium there. This should be prevented in any case.
• the possible freezing volume in the interior of the line connecting device 1 is reduced.
• the inner partial cavities 12a and 12b here have a relation to the line connecting device 1 of Figure 1 significantly lower
• the inside diameter or the inside width d of the partial cavities 12a, 12b can accordingly be, for example, 1.5 to 3 mm , preferably 2 mm.
• Such a flow cross-section is sufficient to pass the medium through the conduit connection means.
• the critical area within the line connecting device 1, in this case the inner cavity 12, can thus be significantly reduced compared with that shown in FIG. 1 and thus also the risk of disconnection of the connection of line connection device 1 or its coupling section 10 and the plug part 6 of the media line 2 due to ice pressure ,
• the passage opening has a diameter di which is smaller than the diameter d 2 at the opposite second end 63, which is connected to the media line 2.
• the diameter di can be
• the line connection means freezes and the ice formed by the frozen medium moves from the media line in the direction of the line connecting device, which grds. would be a problem.
• This ice movement can be achieved by providing the tapered
• Forming the tapered through hole within the male part can be accomplished, for example, by using two cores, which are shaped accordingly.
• the elastic element 100 may, for example, in the form of a spring element, rubber element, any
• the elastic member 100 is within a reduced diameter
• the elastic element 100 is held in the direction of the end 63 of the plug part 6 biased by a spacer ring or support ring 101.
• the elastic element 100 serves to provide a restoring force to on the one hand support the plug member 6 with its front end 61 against the outer wall 11 delimiting wall 13 in the interior of the line connection device 1 and press against it, so that the over-insertion space 11 as low as becomes possible, as Figure 4 can be seen.
• the restoring force of the elastic element 100 serves to prevent any pressure occurring, for example, by an ice column building up in the cavity 12 from freezing
• Overmold 11a passes. In the embodiment variant shown in FIG. 4, this is present as a plug-in space or cavity. There is only the front end 61 of the connector part 6 on the wall 13 in the region of the over-insertion space 11 at. However, it can also or alternatively be provided that the over-insertion space 11a is closed by the action of the elastic element 100 or another elastic element, that is to say the elastic
• Coupling section 10 passes. This is simplified in Figure 10 and indicated in Figure 20 in an alternative embodiment.
• Figure 10a is the compressed Position of the sealing elements under operating pressure, which can be depending on the system 3, 5, 8 or 13 bar, and especially the elastic member 100 to see.
• the sealing ring 8 is in abutment against the wall 13a of the coupling portion 10.
• the there provided elastic element 100 for example in the form of a spring element or elastomer, presses both the two sealing rings 8, 9 and arranged between them
• Sealing member holding member 80 and the sealing member holding member 90 which supports the sealing ring 9, but also the sealing ring 8 and the sealing element holding member 80, in the direction of the wall 13 a, whereby the spill space 11 a is minimized. All elements 8, 9, 80, 90 are in contact or in connection with the plug part 6. Since the elastic element 100 is elastic or resetting and thus enables a provision, as well as a
• the plug part 6 can be easily plugged first, to subsequently lock in the desired position in the interior of the coupling portion 10.
• By acting of the elastic element 100 remains the
• the sealing rings or sealing elements which are provided for sealing the plug part on the outside in the interior of the coupling section 10, can be further pressed into the interior of the coupling section 10 under the action of the elastic element 100, so that the
• Sealing element holding element 90 a in the interior of the coupling portion 10 movable annular or sleeve-shaped holding member 91 is arranged. This has a circumferential, projecting into the interior of the coupling portion 10 flange portion 92. This serves to limit the movement of the movable ring-shaped or sleeve-shaped holding element 91 inside the
• the flange portion 92 can cooperate with a stop edge 14 which is located inside the flange portion 92
• Coupling portion 10 is formed.
• the elastic element 100 in the form of a spring element is supported at the end on the movable ring or sleeve-shaped holding member 91 from or, more precisely, on the flange portion 92 of this, opposite to the possible
• Plug part 6 is in the over-pushed position (as shown in Figure 20).
• two measures for reducing the plug-in space 11 after insertion of the male part 6 in the coupling portion 11 together namely the tapered inner through hole 62, the pressing of the male part 6 in the coupling portion 10 in the interior by the ice movement in, ie in the direction of the arrow P2.
• the over-insertion space 11 or 11a is also reduced by acting of the elastic member 100, the elastic member 100, even if an ice formation from the direction of the inner cavity 12 and 12a arises and presses in the overstretching space 11, supports and the plug-in space 11 reduced as much as possible and accordingly the critical space in which an ice formation threatens by freezing medium.
• the forming ice can no longer build up such a pressure that it could push out the plug part 6 from the coupling section 10.
• Retaining rings 111, 12 flanked.
• the entire elastic device 110 is arranged in an outer circumferential groove 66 of the plug part 6 or in a portion of the plug part 6, which has a reduced diameter compared with the rest of the plug part 6.
• the retaining ring 111 is supported on the inner portion 71 of the retaining element 7 on the coupling portion 10, while the retaining ring 112 is supported on the plug part 6 itself and possibly also on the sealing element retaining element 90. Accordingly, a
• Retaining element 7 easily possible (dashed position of the connector part 6 in Figure 5a).
• the position of the plug part 6 in the operating state, ie the latching position, is shown in FIG. 5a by a solid line. Due to the elastic
• Element 113 is held in the overmold position after the plug-in part 6 has been plugged over, so that the over-insertion space 11 and possibly also the over-insertion space 1a can be kept as small as possible.
• FIGS. 6 and 7 show a further possibility for reducing the
• Both in Figure 6 and in Figure 7 in this case each case a front-side portion 67 of the connector part 6, the end of the front end 61 of the
• Plug part 6 carries, provided with a respect to the other outer diameter of the body of the male part 6 reduced outer diameter d ß .
• a sealing element 120 and 121 respectively.
• the sealing element 120 according to FIG. 6 extends in such a way that its end 122 or its end-side peripheral edge is approximately aligned with the front end 61 of the plug part 6, whereas in the embodiment according to FIG. 7 the sealing element 121 extends completely into the over-insertion space 11 and on the wall 13, which defines the inside of the Kirstresss- 1 the over-insertion space 11 and defined, is applied.
• an end opening 123 of the sealing element 121 is dimensioned so that the opening width is smaller than the outer diameter d ß of fron detergent
• Plugging of the plug part 6 for the purpose of its locking in the interior of the coupling portion 10 is still possible, but at the same time stands by the respective sealing element 120 and 121 only a small area or a small space in which the medium can flow to available. Even with freezing medium, the ice pressure there can not be so high that he pushes the plug part 6 from the coupling portion 10. Rather, due to the sealing by the respective sealing element 120 or 121, the medium no longer enters the overmeshing space 11a, so that it is not necessary there to reduce it as well. Of course, it is in principle also possible to reduce the overspill area 11a, for example by providing a further elastic element, as shown in FIG.
• FIGS. 8 and 9 each show a variant of the line connection device 1 modified with respect to the embodiment variant according to FIG. 6, wherein a sealing element 130 is likewise provided in the fron side region of the plug part 6 in a section 68 surrounding it.
• the reduced outside diameter section 68 is not at the end 61 of the male part 6, unlike the front side section 67 of FIGS. 6 and 7
• a front-side end section 64 of the plug-in part 6 is provided with the same outer diameter d a as the rest of the body of the plug-in part 6. Only the section 68 has a reduced outer diameter d 4 .
• the media feed into the overmold space 11 is not hindered by the sealing element 130, but the media feed into the overmesh area 11a is undisturbed. This one will be in the direction of
• Plug end 63 in turn, in turn by the two sealing rings 8, 9th
• sealing element holding member 90 and accordingly the Overshaped 11a formed very large.
• penetration of the medium into the over-insertion space 11a is avoided, so that medium can only penetrate into the over-insertion space 11 and possibly freeze there.
• the resulting ice pressure will generally not be sufficient to push the plug part 6 out of the coupling section 10.
• a further sealing element 81 is provided in addition to the sealing elements 8 and 9, wherein the two sealing elements 8, 81 a circumferential
• the sealing element 81 lies in the over-insertion space 11a, in particular can rest against the wall 13a provided there in the interior of the coupling section 10 and thus greatly minimize the over-insertion space 11a there.
• Plug parts 6 is thus carried out due to the gripping of the retaining collar 69 by the sealing elements 8, 81 at the same time a seal, which due to the elasticity of the sealing element 8, 81 act these restoring and thereby always return to their original position when acting forces.
• Sealing elements 8, 81 can be located away from the latching point of the retaining collar 60 on the retaining element 7 or its portion 71 of the coupling portion 10, the plug member 6 thus in a further inserted into the coupling portion 10 position than this for the normal locking or locking of the circulating Retaining collar 60 would be required on the holding element 7.
• the dashed line shows the position of the connector part 6 in the
• a single molded sealing element which is similar to a coil former in FIG. 12, can be provided.
• the mold seal member 82 may be provided supported on the seal member holding member 80 instead of the seal members 8 and 81 to provide a latching portion for the retaining collar 69 of FIG. 12
• plug parts 6 instead of the embodiment variant of the molded sealing element 82 shown in FIG. 12, it is also possible to provide a different shape which on the one hand enables latching of the retaining collar 69 of the plug part 6 and, on the other hand, sealing of the plug part relative to the coupling section to prevent passage of medium through the plug part and the cavity 12 from one media line to the other, as shown in Figure 1, flows.
• the sealing element retaining elements 90 which are shown not only in FIGS. 11 and 12 but also in the other figures, each serve to preload the sealing elements, in particular the sealing element 9 and the further sealing elements 8 and 8 and 81 and 82, respectively In this connection, it is also possible in the embodiment according to FIGS.
• Axial adjustment of the plug part are provided within the coupling portion.
• the plug part takes during operation, so while the medium flows through under pressure through this, a different axial position than in the idle state in which the medium does not flow through the plug part. Aaran of the tapered passage opening in the insertion direction in the direction of the wall 13 in the coupling portion 10 of Line connection device 1 presses this the plug part 6 in the
• the plug part takes in comparison to the coupling section thus in
• elastic elements or elastic means in particular in the form of spring elements, rubber elements or elastomeric elements, a resisting ice column or emanating from this ice pressure resistance can be opposed, so that the plug-in space does not fill with the ice and the plug part 6 is not unintentional is pushed out of the coupling portion 10.
• a maximum deflection is given in each case at high pressure p, a freezing of the medium takes place only at standstill of the system, whereby the media pressure slowly degrades and the spring action of elastic elements counteracts the direction of the then no longer applied pressure.
• Line connection device inserted media lines or the
• Inner diameter of the media line or the passage opening continued through the plug part in the interior cavity 12 of the line connection device 1 and the two continued sub-cavities 12a, 12b blended, results in a much smaller medium available volume, could freeze in the medium so that as a result, the ice growth and the negative impact in terms of a
• Line connection means provided cavities can also for Solve the problem or solve the problem of an unwanted
• Line connecting devices 1 are shown, in which the plug part 6 with respect to those shown in the figures described above
• Embodiment variants is modified, namely the fact that this is closed according to Figures 13 and 14 or 16 and 17 at the front. It is therefore provided here a front-side closed end 600 on the plug part 6.
• the inner passage opening 601 can either a uniform inner diameter or a uniform inner clear width d 6 oi or also in the direction of the front end 61 of the male part 6 itself
• the lateral outlet openings 602 to 605 open on the outside 606 of the plug part 6. In the respective area into which the lateral outlet openings 602 to 605 open, the plug part has
• Areas 607 to 610 may be rounded, flattened and / or chamfered, also the front-side closed end 600 of the plug part 6. This can also be seen in FIGS. 13 and 14.
• the individual lateral outlet openings 602 to 605 may be the same
• Inside diameter d 6 02 or d6 03 or d6-04, or d 6 os comprise (shown in Figure 3 by way of example only to the lateral outlet opening 602, the outlet port 603 to the inner diameter d of 6 03, the outlet port 604 to the inner diameter d of 6 04 and the outlet opening 605 has the inner diameter d 6 os), wherein the respective inner diameter of the lateral outlet openings 602 to 605 advantageously smaller than the inner diameter d 6 oi the inner
• Through hole 601 of the connector part flowing medium can be provided.
• Deflection of the medium may cause the medium to freeze at lower temperatures, first in the area of the lateral outlet openings 602 to 605, and thus prevent the ice column from becoming lodged inside
• Line connection device 1 builds up, but is pushed out of this. This can be particularly supported by the fact that the inner passage opening 601 of the plug part 6, as already mentioned above, is tapered in the direction of the front-side closed end 600 of the plug part 6.
• Coupling section 10 similar to, for example, in the embodiment shown in Figure 7 are arranged.
• the lateral outlet openings 602 to 605 can not only be approximately perpendicular to the longitudinal extent of the inner through opening 601, such as shown in Figure 13, but also in one
• opposite lateral outlet openings open approximately on the same circumferential line on the outside 606 of the connector part.
• FIGS. 16 and 17 a connection of the media line 3 to a tank 200 is shown as line connection device 1.
• the tank 200 has the as Plug part 6 formed connecting device, which is integral with the body 201 of the tank 200.
• a riser 202 extends through the medium from the tank into the interior of the through-opening 601 of the plug part 6 and from there through the lateral outlet openings 602 to 605 into the inner
• Cavity of the coupling portion of the line connecting device 1 and from there into the media line 3 passes, as described above to Figures 13 and 14.
• Freezing medium usually freezes from the wall of the body 201 of the tank inwardly in the direction of the riser 202.
• closure part 614 is further provided, which in turn has an inner passage opening 615.
• the closure part 614 consists in particular of a
• Closure part 614 clogged outlet opening 613. An accidental penetration of the ice column in the inner cavity in the interior of the coupling portion 10 of the line connecting device 1 (see in particular Figure 1) can thus be prevented.
• Outlet openings shown here 602, 604, provided plug part 6, such as an SAE plug, and an elastic member 100, in particular in the form of a spring element be.
• plug part 6 such as an SAE plug
• elastic member 100 in particular in the form of a spring element be.
• the elastic member 100 is here annular and arranged in the reduced average gate 65, itself
• Sealing element holding element 80 are separated, are supported by the literallybuchse 94, which is provided instead of the sealing element holding member 90, as shown in Figure 4, as shown in FIG 24, and inside the
• Coupling section 10 held.
• the terminating bushing 94 in turn is supported on the locking lugs 95 provided in the interior of the coupling section 10, as can also be seen from FIG.
• FIGS. 18 and 19 each show a volume compensation element 700 which is fitted onto a plug part 6.
• the plug part is also part of one here
• the neckline includes in each case also a coupling portion 10a into which the respective plug part 6 is inserted. Applied to the plug part, axially against a projecting wall 620 of the connector part 6 is the respective
• Volume compensation element 700 is added. The two
• Volume compensation elements 700 according to Figure 18 and 19 have to create a volume compensation in one case, an axial longitudinal extent enabling portion 701 and on the other hand, an axial
• the section 701 is in the embodiment shown in FIG.
• the element 704 is formed in the embodiment shown in Figure 19 as consisting of an elastomeric sleeve-like element, for example.
• Cellular rubber in particular closed cell cellular rubber, which also shows restoring effect, thus spring elasticity.
• the volume compensation element 700 shown in FIG. 18 is constructed in one piece and has a sealing section 702 at the front end. This has a larger outer diameter d 7 02 than the rest
• Volume compensation element 700 of Figure 18 here is a multi-part
• Volume compensation element 700 is provided, which is to achieve the
• Sealing function has a so-called quad ring 703. Over this is a particularly good seal over a predefined pressure range and / or
• the support ring 705 is arranged between the sleeve-shaped element 704 and the quadring 703, while the other support ring 706 between the quadring 703 and a projecting flange 621 of the
• Plug parts 6 is arranged and supported.
• Axial length expansion is thus possible via the two volume compensation elements 700 according to FIG. 18 and FIG. 19, in order to provide volume compensation at specific pressure and / or temperature conditions, at the same time allowing a sealing effect by the respective sealing section 702 or the sealing element 703 in the form of the quadring becomes.
• axial expansion for a pressure range of more than 50 bar can be provided in order to achieve a freeze resistance, since with ice column formation, the pressure in the interior of the plug part or the Kausinformationseinnchtung increases and thus a back pressure by the volume compensation element or its
• Section 701 or the sleeve-shaped element 704 can be created.
• EPDM ethylene-propylene-diene rubber
• Sealing package consisting of the two sealing elements 8, 9 with
• Plug part 6 in ice formation of the medium by volume change exerted (ice) compressive force is transmitted to the clutch collar 15 and the on the sealing package, comprising the two sealing elements 8.9, the
• Terminating bush 94 acts.
• Coupling section 10 can be effected.
• the cohesive connection can by the force distribution, as described above, in one hand only force on the terminating bushing and on the other hand cause a release of the clutch collar 15 only force directed on the clutch collar.
• the entire assembly of the line connection device 1 in the range of connector part and sealing package thus shows a relation to other solutions significantly higher ice crushing strength.
• the cohesive connection such as the laser weld 96, may be formed either as a segmented laser weld or as a circumferential, ie non-segmented, weld.
• the terminator 94 is made of non-laser-transparent material to a
• connection is further advantageous to the effect that in this way a higher holding force than that of the clutch collar is generated or one of the holding force of the clutch collar 15 the same holding force.
• the compressive force generated by the volume change of the frozen or frozen medium, or the ice pressure can be provided by providing such
• Embodiment variants of line connection devices for the detachable connection of at least two medium-flow media lines can be formed numerous others, in particular also any combination of the mentioned embodiments, in which in each case
• At least one device is provided, which in an intermediate state between an operating state, in which medium flows through the media line (s) and the line connection device, and a freezing state, in which the medium is frozen within the media line (s) and the line connection device, the volume of the inner cavity is reduced and / or a portion of the internal cavity from penetration of medium and / or ice seals.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Quick-Acting Or Multi-Walled Pipe Joints (AREA)

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• 2014
  • 2014-05-22 DE DE102014007409.9A patent/DE102014007409A1/de not_active Withdrawn
• 2015
  • 2015-03-16 SE SE1600280A patent/SE543614C2/en unknown
  • 2015-03-16 DE DE112015001261.3T patent/DE112015001261A5/de active Pending
  • 2015-03-16 CN CN201580024955.3A patent/CN106415105B/zh active Active
  • 2015-03-16 WO PCT/EP2015/000575 patent/WO2015135663A2/de active Application Filing

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