DE102014006262B4 - Voltage compensating pipe section with integrated sealing function, especially for hot fluid pipelines - Google Patents

Abstract

Pipe segment for a fluid-carrying pipe (190) with at least one bellows pipe (110) which has at least one pipe end (120) formed in the material of the bellows (110) in cross-section annular flange (130) in the installed position in the pipeline ( 190) forms at least one sealing line (240, 250, 250 ', 380) to form a further pipeline component (200), wherein a pressure-tight connection (260) of the bellows tube (110) to the further pipeline component (200) is formed by the at least one sealing line (240, 250, 250', 380). wherein a guide tube (140) is arranged within the bellows tube (110), which has a terminal annular flange (160) at a tube end (150), wherein the terminal, annular flange (160) due to the inner layer of the guide tube ( 140) is surrounded by the annular flange (130) of the bellows tube (110).

Description

The invention relates to a pipeline segment for a fluid-carrying pipeline with at least one bellows pipe. Furthermore, the invention relates to a pipeline with such a pipeline segment.

Currently, usually in fluid-carrying pipelines, in which hot gases such as exhaust gas or charge air are performed, so-called compensators, or exhaust compensators, installed as voltage compensating pipe segments to compensate for a mounting tolerances and the associated stresses and to compensate for other tensions and deformations which can occur during the high temperature differences during operation in the pipeline, or in the exhaust pipe. However, to ensure that the pipeline remains largely pressure-tight, such stress-compensating pipe segments or exhaust gas compensators must be installed in the pipeline in such a way that the connecting regions of the pipeline segment are pressure-tight to the respective further pipeline component. For this purpose, for example, such pipe segments are welded to the respective further pipe component or one can try by means of flanges or other connection devices, the pressure-tight form the connecting portions of the pipe segment to the respective further pipe component. Since considerable pressure pulsations can occur in particular in exhaust pipes and since the temperature differences can be enormous, expensive and complex design measures must be carried out for the pressure-tight connection of the stress-compensating pipe segment, or a bellows pipe as exhaust gas compensator, with the respective further pipeline component. In addition, due to the high temperature fluctuations and the corrosive nature of the exhaust gas quality materials in the pipeline to use and possibly special fasteners, such as flanges, to the pipe segment and the other pipe components additionally welded, for example, so that the connection area despite the harsh operating conditions in Exhaust pipe remains pressure tight.

The object of the invention is to provide an improved or at least one alternative embodiment for a stress-compensating pipe segment, which can be inexpensively and structurally simple and yet pressure-tight connected to the respective further pipeline component, so over a wide temperature range and the required pressure range, the pressure tightness the connection area between the pipeline segment and further pipeline component can be ensured.

In one aspect of the invention, a voltage-compensating pipe segment is proposed for a fluid-carrying pipe, which is equipped with at least one bellows pipe and which has at least one pipe end formed of the material of the bellows, annular in cross-section curling, which in installation position in the pipeline at least one Forming sealing line to another pipe component, wherein by the at least one sealing line a pressure-tight connection of the bellows tube is formed on the other pipe component.

Advantageously, the tension compensating pipe segment can be equipped with a stress-compensating function for the pipeline, as well as with an integrated sealing function by this configuration. Thus, in one component pipe segment, the function of the voltage compensation and the sealing function can be integrated, and this only by reshaping the Faltenbalrohres and without additional fasteners must be complex with the Faltenbalgrohr. In addition, due to the structurally simple and cost-effective design, the manufacturing costs can be reduced and the manufacturing process can be simplified structurally. Also, in such an integral construction of a piece of pipe, the combinations of the two functions are possible without welding seams are necessary to attach, for example, a flange or other fasteners to the bellows. In addition, since the Faltenbalgrohr can be designed so that the Faltenbalgrohr can be connected directly to the other pipe component, can also be advantageously dispensed with further complex joining techniques and sealing measures, since the annular cross-section flare itself ensures the seal. Thus, by means of the annular cross-section flare a pressure-tight connection to another pipe component can be formed, which still ensures a pressure-tight connection to the respective further pipeline component even when occurring during operation enormous pressure and temperature fluctuations. Although thus the fluid-carrying pipe can be temporarily or permanently under high voltages, is advantageous mainly due to the formation of at least one sealing line by the annular cross-section flare to the other pipeline component and despite enormous temperature fluctuations and pressure fluctuations during operation, a pressure-tight connection of the Faltenbalrohres to the ensured further pipeline component.

In this case, a pipe system is understood as meaning an arbitrarily branched system of pipes or also components arranged in or on the pipes, wherein the respective fluid flows through the pipes and the components.

Accordingly, a pipeline segment is to be understood as a pipeline component which can be inserted into the pipeline and is flowed through in fitting position by the respective fluid, wherein the pipeline segment is connected at least at one end to a non-positive and / or positive fit with a further pipeline component.

Such a pipeline segment has a bellows pipe, wherein a bellows pipe is to be understood as meaning a pipe which has a bellows on at least one section, the bellows being formed by an axial, wavy, or meandering course of the pipe jacket. Such Faltenbalgrohre or Faltenbalganordnungen, as they are known, for example, in buses with excess length or in the coupling of railway cars are characterized by the fact that they have a high elastic behavior with respect to the tilting or pivoting of the two pipe ends to each other. Due to this elastic tilting behavior, such bellows tubes are particularly well suited for stress compensation in exhaust pipes, since they can be exposed to high mechanical loads in a pressure-tight manner. For example, used as exhaust gas compensators can be compensated by them in the exhaust pipe both assembly tolerances, as well as deformations due to the enormous temperature fluctuations during operation or at least partially compensated.

Under an annular cross-section curling is meant a rewinding of the pipe end of the Faltenbalrohres, so that this rolled-pipe end forms a cross-section to the circumferential direction of the Faltenbalgrohres annular profile. Accordingly, the flange is substantially round in its cross-section, or predominantly with curves, wherein the term annular at least one half-ring and thus also an open ring structure can be understood. But it is also conceivable that the annular flange is also formed closed as a half ring, for example, designed as a three-quarter ring or even closed, in which case the flange relative to the cross section forms a solid ring. The cross-sectional area is substantially perpendicular to the center line of the flange, wherein the center line is positioned substantially equidistant to the flanging. In this context, an equidistant positioning means that the points of intersection of any straight line lying in the cross-sectional area are equidistant from the center line through the center line with the flanging.

A sealing line is to be understood as meaning a substantially continuous annular line, wherein the term sealing line can also be understood as a regular or irregularly extending sealing annular surface, at least if a sealing surface is also formed, at least one sealing line remains, which is continuous and essentially continuously forms a pressure-tight connection of the Faltenbalgrohres to the other pipeline component.

Furthermore, the annular flange in the uninstalled state or in the installed position in the pipeline may have a round formation, an axially oriented oval formation, a radially oriented oval formation or a circular formation.

Advantageously, by a respective such training in unassembled state or in mounting position in the installation position respectively desired shape of the flange and the installation position each desired position and bias of the sealing line are shown. So it is conceivable, for example, that the annular flange in the uninstalled state in cross-section has a circular design, but which is deformed in the installed position due to the compression to an aligned in the radial direction oval training. In this case, both a radial, as well as an axial sealing line can be formed due to the compression and circular training in the uninstalled state, or only an axial sealing line. Due to the elastic behavior of the annular flanging the sealing lines can be under a predetermined bias, so that the pressure-tight connection can be ensured even in lower temperature ranges. All combinations of training in installation position and in the uninstalled state are conceivable, depending on which sealing profile is to be displayed. One or more sealing lines, different positioning of the sealing lines and different preloadings of the sealing lines. Here is the bias of a sealing line to understand that force or voltage with which the annular flange is applied in the installed position but in non-operation.

In this case, a directionally aligned oval formation is understood to mean that direction in which the long semiaxis is aligned.

Furthermore, the annular flange in the unassembled state or in the installed position can have a 1 to 50% open training or a closed training. The annular flanging may also be open from 2 to 40%, for example from 3 to 30%, in particular from 4 to 30% and optionally from 4 to 25%.

Advantageously, characterized, for example, the annular flange in the uninstalled state be open, and closed due to the compression in the installation position. Thus, the closing of the annular flange can be advantageously used as a gentle bias, so that even in the low temperature range, the pressure-tight connection of Faltenbalgrohr and further piping component can be ensured over a wide distance range and by means of a small deformation.

This is understood to mean a percentage open configuration of the annular flange, which is open to 1 to 50%. Thus, a 50% open annular flange forms a half ring and a 25% open training a three-quarter ring.

Furthermore, in the uninstalled state or in the installed position, the annular flange can have an uninterrupted course in the circumferential direction of the bellows tube. Advantageously, leakage due to a likewise uninterrupted design of the sealing line can be prevented for the most part.

Furthermore, the annular flange in the unassembled state or in installation position have a radially inwardly formed course, whereby advantageously inside the bellows and at the same time inside the annular flange, for example, a guide tube can be arranged, which mechanically reinforces the Faltenbalgrohr at least terminally. As a result, furthermore, the bellows tube can form the sealing line / s for the further pipeline component, without the guide tube having to be pressure-tightly formed to the bellows tube.

In addition, in the unobstructed state or in the installed position, the annular flange can have a course extending in the direction of the tube end beyond the at least one sealing line. This can be advantageously prevented or reduced the risk that irregular training lead to leakage. In addition, it can also be prevented that the tube end scratches the sealing lines or sealing surfaces formed on the respective further pipeline component. As a result, the pipe end can be reworked less costly, without sacrificing the integrated sealing function must be taken into account.

Of the terms axial direction and radial direction, the subsequently defined orientation of the respective direction is always included in the following. Here, an axial direction is understood to mean a direction parallel to the center line of the pipeline segment and in the orientation in each case to the annular flange, which is in each case viewed straight. By the radial direction is meant a direction which extends from the center line of the pipeline segment to the shell of the pipeline segment, is perpendicular to the axial direction and is oriented from the center line to the shell. The direction of the circumference is understood to mean the direction that is taken when following the circumference of the pipe segment. The term circumferential direction is used without orientation

Furthermore, an O-ring, a C-ring or a terminal annular flange of a guide tube inserted in the interior of the bellows tube can be arranged as an insert in the annular flange. Advantageously, the elasticity behavior of the annular flange of the bellows tube can be adjusted in the desired direction by such an insert. Thus, by the reinforcement by means of the insert a sealing line can be generated, which is under a higher bias in the pipeline, so that the pressure tightness can be ensured, especially in the very low temperature range during operation.

Such inserts may be formed of iron, steel, stainless steel, stainless steel, X8CrNiTil8-10 type stainless steel, X15CrNiSi20-12 type stainless steel, Inconel 625, Inconel 718, Inconel X750, Rene 41, or Waspalloy, or contain a material of this group , Advantageously, high temperatures can be achieved by such materials, especially for example for the exhaust gas range, without the material at least partially losing the elastic properties that are important for the pressure tightness.

Furthermore, the at least one sealing line may have an axial orientation, a radial orientation or an orientation of the sealing line at a clockwise angle of 225 to 135 degrees to the axial direction. Advantageously, by such an orientation, the respectively desired and most highly sealing positioning of the sealing line can be formed, wherein it is also conceivable that a plurality of sealing lines of different orientation are formed with different biases, so that the pressure tightness over several sealing lines with different orientation and bias is ensured.

In this case, a respective orientation of the sealing line is understood to mean that direction of the connection of the center line of the annular flange with the sealing line in the cross-section of the flange and additionally the orientation from the center line to the sealing line. Thus, the term orientation with respect to the sealing line encompasses both the direction and the orientation. An axial orientation of the sealing line is when the connection of the center line of the annular flange and the sealing line is arranged in the axial direction, while in a radial alignment, the connection extends from the center line and the sealing line in the radial direction.

Generally, an orientation of the sealing line below the respective clockwise determined angle to the axial direction is the previously described orientation of the sealing line which is positioned to the axial direction at the respective angle, wherein the respective angle is determined clockwise from the orientation of the sealing line to the axial direction.

Furthermore, the annular flange is designed such that the pressure-tight connection is pressure-tight in a temperature range of -40 to +1000 ° C and / or in an overpressure range of 0.1 bar to 30 bar. It is also conceivable that the pressure-tight connection in a temperature range of -40 to +950 ° C and / or in an overpressure range of 0.1 bar to 20 bar, for example in a temperature range from -40 to +900 ° C and / or in a pressure range of 0.1 bar to 10 bar, in particular in a temperature range of -40 to +850 ° C and / or in an overpressure range of 0.1 bar to 8 bar and optionally in a temperature range from -40 to +800 ° C and / or in a pressure range of 0.1 bar to 6 bar pressure-tight.

Advantageously, it can be ensured by selecting such parameter ranges over a wide pressure range and over an enormous temperature range, so that such a pipe segment can be used, for example, as an exhaust gas compensator in the exhaust pipe.

Further, a conical tube portion of the bellows tube disposed between the annular crimp and a bellows of the bellows tube may be disposed in a direction of conical expansion at a clockwise angle of 50 to 85 degrees to the axial direction.

Advantageously, by such an arrangement a V band clamp can be used to connect the pipe segment with another pipe component, wherein due to the respective adapted conical shape of the pipe section the respective desired contact pressure and pressing can be formed by means of the V band clamp on the annular flange. Also thereby, the tension during operation and the bias with respect to the one or more sealing lines can be controlled as desired.

In this case, the orientation and the orientation of the conical course in the direction of the conical widening in the cross section of the annular flange are understood by the orientation of the conical widening. The respective angle is determined by the orientation of the conical widening to the axial direction in the clockwise direction.

If the pipeline segment is designed for exhaust gas or charge air, then the pipeline segment can be used, for example, as an exhaust gas compensator in the exhaust gas line or in the exhaust gas recirculation line or as a compensator in the charge air line, in which case the pipeline segment is designed such that it advantageously both the temperature fluctuation of Exhaust gas, as well as the corrosive properties of the exhaust gas, as well as withstand the occurring stresses.

If the bellows tube is single-layered, double-layered, three-layered, four-layered or five-layered or generally multi-layered, then the bellows tube can be machined more mechanically due to its positionality.

If the bellows pipe uses iron, steel, stainless steel, stainless steel, X8CrNiTiI8-10 stainless steel, X15CrNiSi20-12 stainless steel, Inconel 625, Inconel 718, Inconel X750, Rene 41, or Waspalloy, such a bellows pipe may also be beneficial in corrosive fluids, such as exhaust gases, also be used with enormous temperature fluctuations of the corrosive fluids.

In a further aspect of the invention, a pipe is proposed with a pipe segment as described above, wherein the pipe segment is connected by means of a connecting device to the further pipe component, so that the annular flange of the bellows is pressed against a sealing region of the further pipe component.

Advantageously, as a pipe segment, a pipe component can be used, which combines both a stress-compensating function and a sealing function in a component in an integral design and also can be easily manufactured. Despite this accumulation of functions in the pipeline segment, the pressure tightness of the connection between Pipe segment and further piping component are ensured. Since the annular flange and possibly the conical pipe section can be easily manufactured in the desired shape, it is possible to dispense with an adaptation of the connecting device, so that common, commercially available connection devices can be used. This saves manufacturing costs and increases operational safety, as well as reduces maintenance due to the use of sophisticated components.

In this case, a sealing region is understood as meaning a region of the further pipeline component which, in cooperation with the annular flange of the bellows tube, forms the at least one sealing line.

Furthermore, the connecting device can be designed, for example, as a V band clamp or as a flange.

In the case of the V-band clamp, it is advantageous to use connecting elements which are usually used, for example, in the exhaust-gas pipe region or in other areas of conducting fluids which are subject to high temperature fluctuations, so that common, commercially available connecting devices can be accessed. In this case, the conical tube section of the bellows tube can be adapted to the respective V-band clip such that the desired tension profile is formed on the sealing line (s).

It is also conceivable that the connecting device has a flange, wherein in this case, in cooperation with the flange, the pressing or pressing of the annular flange is made to the sealing area. For this purpose, a flange may be formed on the further pipe component, to which a flange ring is screwed, wherein in installation position at least the annular flange between the flange and the flange is positioned and pressed by the connection of the flange and flange to the sealing area. Furthermore, it is conceivable that a conical pipe section is positioned in the installed position between the flange and the flange and is also pressed by the connection of the flange and flange. Advantageously, in this case, the pipe segment can be connected to the further pipe component by a kind of flange connection, without the flange having to be elaborately formed or attached to the bellows pipe.

In this case, the further pipeline component may be a pipeline segment, a pipe section, an exhaust gas turbocharger, a manifold or the like.

Advantageously, a high flexibility of the use of the pipe segment in the pipe can be made so that at the most different points, especially before functional pipe components such as the exhaust gas turbocharger, a voltage compensation can be made so that the functional pipe components are subjected to a reduced mechanical stress.

Furthermore, the sealing region of the further pipeline component may have a radial annular surface which forms at least one radial sealing line with the annular flanging and / or an axial annular surface which forms at least one axial sealing line with the annular flanging. Advantageously, a sealing line formed in the radial direction or in the axial direction or in both directions can thereby be constructed, so that in each case the desired pressure profile can be generated.

In this case, a radial annular surface is understood to mean an annular surface whose surface normals are oriented in the radial direction, while an axial annular surface is understood to mean an annular surface whose surface normals are aligned in the axial direction.

Furthermore, the sealing region of the further pipeline component can also have at least one conical annular surface, which is arranged in the direction of the conical expansion at a clockwise angle of 10 to 170 degrees relative to the axial direction and forms at least one sealing line which is at a clockwise angle of 225 to 135 degrees clockwise to the axial direction is oriented.

By such conical annular surfaces, the radial alignment and the axial alignment of a sealing line can be supplemented by almost an unlimited selection of differently oriented sealing lines, so that as many and optimized for the particular application sealing lines can be formed. As a result, almost any desired and optimized sealing profile can be created. This is an advantageous situation, especially in the case of several sealing lines, since, for example, in the case of 2, 3 or 4 sealing lines, the contact pressure at the individual sealing lines can be balanced with each other, so that the sealing effect is optimized. In this case, the optimization of the sealing effect and the achievement of the respective desired sealing profile and voltage profile can also be supported by the shape of the annular flange.

In this case, the orientation and the orientation of the conical course in the direction of the conical widening in the cross section of the annular one are understood by the orientation of the conical widening Flanging. The respective angle is determined by the orientation of the conical widening to the axial direction in the clockwise direction.

If, in addition, an annular bead, in particular formed on one of the annular surfaces, is provided, which forms a sealing line with the annular flange, which is oriented in a clockwise determined angle of 225 to 135 degrees to the axial direction, the positioning of the sealing lines can be made more precisely, so Even with prolonged use of the pipe segment or the further pipe component slipping of the sealing line and thus a deflection of each other optimized sealing conditions can be largely prevented or delayed.

Is a conical clamping ring surface, which is arranged in the orientation of the conical widening at a certain angle of 95 to 130 degrees to the axial direction, provided on the sealing region of the further pipe component, so in cooperation with a correspondingly arranged conical pipe section of the bellows advantageously a V Band clip can be used as a connecting device.

• 1 ein Rohrende, beispielsweise eines Faltenbalgrohres, mit einer im Querschnitt ringförmigen Bördelung am Rohrende,
• 2 ein Rohrleitungssegment in Einbaulage mit einem weiteren Rohrleitungsbauteil, wobei eine ringförmige Bördelung eine in Axialrichtung ausgerichtete ovale Ausbildung aufweist,
• 3 ein Rohrleitungssegment in Einbaulage mit einem weiteren Rohrleitungsbauteil, wobei ein Dichtbereich des weiteren Rohrleitungsbauteils eine axiale Ringfläche und eine innenliegende radiale Ringfläche aufweist,
• 4 ein Rohrleitungssegment in Einbaulage mit einem weiteren Rohrleitungsbauteil, wobei der Dichtbereich des weiteren Rohrleitungsbauteils eine innenliegende radiale Ringfläche und eine konische Ringfläche aufweist,
• 5 ein Rohrleitungssegment in Einbaulage mit einem weiteren Rohrleitungsbauteil, wobei Dichtbereich des weiteren Rohrleitungsbauteils eine außenliegende radiale Ringfläche aufweist,
• 6 ein Rohrleitungssegment in Einbaulage mit einem weiteren Rohrleitungsbauteil, wobei der Dichtbereich des weiteren Rohrleitungsbauteils eine innenliegende radiale Ringfläche, eine axiale Ringfläche und eine außenliegende radiale Ringfläche aufweist, 7A ein Rohrleitungssegment in Einbaulage mit einem weiteren Rohrleitungsbauteil, wobei als Verbindungsvorrichtung ein Flansch verwendet wird,
• 7B ein Rohrleitungssegment in Einbaulage mit einem weiteren Rohrleitungsbauteil, wobei als Verbindungsvorrichtung ein Flansch mit einem Flanschvorsprung verwendet wird, 8A ein Rohrleitungssegment in Einbaulage mit einem weiteren Rohrleitungsbauteil, wobei der Dichtbereich des weiteren Rohrleitungsbauteiles zumindest eine Ringwulst aufweist,
• 8B eine Vergrößerung des Dichtbereiches der 8a,
• 9 ein Rohrleitungssegment mit einem in der ringförmigen Bördelung angeordneten O-Ring als Einlage,
• 10 ein Rohrleitungssegment mit einer offenen ringförmigen Bördelung und einem in der ringförmigen Bördelung angeordneten O-Ring als Einlage,
• 11 ein Rohrleitungssegment mit einem in der ringförmigen Bördelung angeordneten C-Ring als Einlage.

It show, each schematically:

• 1 a pipe end, for example a bellows pipe, with an annular cross-section flanging at the pipe end,
• 2 a pipeline segment in the installed position with a further pipeline component, an annular flange having an axially aligned, oval formation,
• 3 a pipeline segment in the installed position with a further pipeline component, a sealing region of the further pipeline component having an axial annular surface and an internal radial annular surface,
• 4 a pipeline segment in the installed position with a further pipeline component, wherein the sealing region of the further pipeline component has an inner radial annular surface and a conical annular surface,
• 5 a pipeline segment in the installed position with a further pipeline component, sealing region of the further pipeline component having an external radial annular surface,
• 6 a pipeline segment in the installed position with a further pipeline component, wherein the sealing region of the further pipeline component has an inner radial annular surface, an axial annular surface and an outer radial annular surface, 7A a pipeline segment in installed position with a further pipeline component, wherein a flange is used as connecting device,
• 7B a pipeline segment in the installed position with a further pipeline component, wherein a flange with a flange projection is used as connecting device, 8A a pipeline segment in the installed position with a further pipeline component, the sealing region of the further pipeline component having at least one annular bead,
• 8B an enlargement of the sealing area of 8a .
• 9 a pipe segment with an O-ring in the annular flange as an insert,
• 10 a pipe segment having an open annular flange and an O-ring in the annular flange as an insert,
• 11 a pipe segment with a arranged in the annular flange C-ring as a deposit.

A pipeline segment 100 , as in 1 shown, has at least one bellows tube 110 on that with a bellows 115 is equipped and at least at one end of the pipe 120 an annular cross-section flanging 130 having. In this case, the annular flange 130 , as in 1 shown, closed and thus be formed substantially as a solid ring.

Furthermore, the pipe segment 100 with one inside the bellows tube 110 arranged guide tube 140 be equipped. The guide tube takes over 140 a stabilizing function, allowing the bellows tube 110 at least at the end of the pipe 120 is formed insensitive to mechanical stresses. In addition, the guide tube serves 140 also for the guidance and direction of the fluid flow. Usually, for example, in exhaust compensators on both pipe ends 120 such guide tubes 140 used, with the guide tubes 140 to the middle of the bellows tube 110 are not connected to each other. As a result, such an exhaust compensator is terminally stabilized and in the region of the bellows 115 , in which usually no tailpipe 140 is arranged, flexible and elastic. But it is also conceivable that only at one end of the pipe, as in the 1 shown, such a guide tube 140 is used.

The guide tube 140 can at its pipe end 150 also a terminal, annular flange 160 have, wherein the terminal annular flange 160 due to the inner layer of the guide tube 140 from the annular flange 130 of Faltenbalgrohres 110 is surrounded, or within the annular flange 130 is arranged. This can advantageously the guide tube 140 by means of the annular flanges 130 . 160 be fixed and the annular flange 130 the bellows tube 110 through the terminal, annular flange 160 of the draft tube 140 be stabilized.

In addition, the bellows tube 110 one between the annular flange 130 and the bellows 115 arranged conical pipe section 170 respectively. By means of the conical pipe section 170 and in cooperation with a connecting device 180 , for example, a V band clamp 185 , as in 2 shown, the pipe segment 100 in a fluid-carrying pipeline 190 be involved. This can be an orientation 193 a conical widening of the conical tube section 170 to the axial direction 195 under a clockwise direction 197 determined angle α be arranged from 50 to 85 degrees.

In 2 is the pipeline segment 100 in installation position with another pipeline component 200 shown. In this case, the other pipeline component 200 in his sealing area 205 an axial annular surface 210 and an inner, radial annular surface 220 on. Because the annular flange 130 by means of the V band clamp 185 both to the axial annular surface 210 as well as to the inner, radial annular surface 220 is pressed, at least creates an axially oriented sealing line 240 and a radially oriented sealing line 250 in cooperation of the annular flange 130 with the axial ring surface 210 and the inner, radial annular surface 220 , It is also conceivable that the sealing lines 240 . 250 are formed as optionally irregularly extending sealing surfaces, wherein at least one remaining sealing line 240 . 250 throughout the pressure-tight connection 260 the bellows tube 110 to the other pipeline component 200 ensures.

Due to the contact pressure of the connecting device 180 in the connection area 265 may be a deformation of the annular flange 130 enter. For example, it is conceivable that the circular training 270 the annular flange 130 in unopened condition, like in 1 shown by the contact force to an oval training 280 possibly reversibly deformed, as in 2 shown. It is in the 2 shown oval training 280 in the radial direction 285 aligned. But it is also conceivable that, for example, the annular flange 130 in uninstalled state oval in the axial direction 195 is designed aligned and in installation position also oval in the axial direction 195 aligned, oval in the radial direction 285 aligned or circular. Thus, a variety of possible combinations of the configuration of the annular flange remains 130 in uninstalled condition or in installation position in the pipeline 190 , depending on which sealing profile is desired.

In the 3 is for example a pipeline segment 100 in installation position with another pipeline component 200 shown in which the annular flange 130 in installation position a circular training 270 having. In addition, the annular flange 130 closed formed, as well as in the 1 to 7B the case is.

The following is in the 4 to 11 on the representation of the bellows 115 waived.

In the 4 is a pipeline segment 100 in installation position with another pipeline component 200 shown, the sealing area 205 an internal, radial annular surface 220 has and a conical annular surface 290 , This conical ring surface 290 can in terms of orientation 300 their conical widening under a clockwise direction 197 determined angle β from 10 to 170 degrees to the axial direction 195 be arranged. Due to such conical annular surfaces 290 , which can be arranged in a wide angle range, can be formed differently positioned sealing lines or sealing surfaces.

In 5 is a pipeline segment 100 in installation position with another pipeline component 200 shown that a sealing area 205 having, with an outer, radial annular surface 310 Is provided. In addition, the sealing area 205 a conical clamping ring surface 320 on, with the orientation 330 their conical widening under a clockwise direction 197 determined angle γ from 95 to 130 degrees to the axial direction 195 can be arranged. Such a conical clamping ring surface 320 is also in the 2 to 6 and 8A to 11 shown.

In 6 is the pipeline segment 100 in installation position with another pipeline component 200 shown. The further pipeline component 200 is formed such that the sealing area 205 an internal, radial annular surface 220 , an external, radial annular surface 310 and an axial annular surface 210 having. In this case, on the one hand advantageously the annular flange 130 be well centered during assembly and on the other form during compression by means of the connecting device 180 with corresponding structural design of three sealing lines, two radially oriented sealing lines 250 . 250 ' and an axially oriented sealing line 240 ,

In the embodiment according to 7A is a pipeline segment 100 in installation position with another pipeline component 200 shown, wherein the further pipeline component 200 a connection device 180 having, as a flange connection 340 or flange-like connection is formed. It is at the other pipeline component 200 a flange 343 educated. This flange 343 comes with a flange ring 347 countered, with the annular flange 130 and possibly also the conical tube section 170 in installation position between the flange ring 347 and the flange 343 is positioned. By connecting the flange rings 347 with the flange 343 can be a pressing of the annular flange 130 on, for example, the axial annular surface 210 in the sealing area 205 be made. Is the flange ring 347 with a conical clamping ring surface 348 , if necessary, complementary to the conical pipe section 170 trained, equipped, so can also by means of the interaction of the conical tube section 170 with the conical clamping ring surface 348 when connecting the flange ring 347 with the flange 343 the contact pressure of the bellows tube 110 on the sealing area 205 be strengthened.

As in 7B shown, in addition to the flange 343 a flange projection 349 be present in the installation position in the direction of the bellows 110 is oriented. By means of this flange projection 349 a simpler positioning of the annular flange during assembly succeeds. Is the flange projection 349 also complementary to the conical tube section 170 formed, with a corresponding configuration, a further radially oriented sealing line 250 between the flange projection 343 and the annular flange 130 be trained and / or one in the 7B not shown sealing line or sealing surface between the flange projection 349 and the conical tube section 170 , The formation of the latter sealing line or sealing surface can additionally by still on the Flanschvorsprung 349 and / or on the conical tube section 170 trained annular beads are supported. Such annular beads and their operation will be in the following 8A and 8B described.

The sealing area 205 , in the 8A and 8B shown further pipeline components 200 , is with an internal, radial ring surface 220 and an axial annular surface 210 fitted. In addition, as in 8B shown, has the inner, radial annular surface 220 a torus 350 on that with the annular curl 130 a radially oriented sealing line 250 formed. Furthermore, the axial annular surface 210 a torus 360 have that with the annular flange 130 an axially oriented sealing line 240 formed. Additionally or alternatively, the sealing area 205 a torus 370 have, with which the annular flange 130 an obliquely oriented sealing line 380 training, their orientation 390 under a clockwise direction 197 determined angle δ from 225 to 135 degrees to the axial direction 195 can be arranged.

This is the orientation 390 the obliquely oriented sealing line 380 determined such that in cross-section and in the cross-sectional view, a center line 395 the annular flange 130 with the obliquely oriented sealing line 380 is connected and the orientation 390 from the center line 395 to the obliquely oriented sealing line 380 runs. A radial orientation of the radially oriented sealing line 250 or an axial orientation of the axially oriented sealing line 240 can be determined analogously.

The pipeline segment 100 , as in 9 is shown with one in the annular flange 130 arranged insert 400 equipped, with the deposit 400 as an O-ring 410 is trained. The guide tube 140 in this case is not in the annular flange 130 or within the annular flange 130 arranged.

The pipeline segment 100 according to the 10 also has an O-ring 410 trained deposit 400 on that in the annular curl 130 is arranged, in this embodiment, the guide tube 140 so to the deposit 400 is arranged around that as an O-ring 410 trained deposit 400 from the open flare 130 and the draft tube 140 is enclosed.

That in the 11 shown pipe segment 100 points as a deposit 400 a C-ring 420 on. In this case, the annular flange is also in this case 130 open, wherein the guide tube 140 until the end of the annular flange 130 is guided in the way that the annular curl 130 and the guide tube 140 the deposit 400 surround.

Claims (12)

Pipe segment for a fluid-carrying pipe (190) with at least one bellows pipe (110) which has at least one pipe end (120) formed in the material of the bellows (110) in cross-section annular flange (130) in the installed position in the pipeline ( 190) forms at least one sealing line (240, 250, 250 ', 380) to form a further pipeline component (200), wherein a pressure-tight connection (260) of the bellows tube (110) to the further pipeline component (200) is formed by the at least one sealing line (240, 250, 250', 380). wherein a guide tube (140) is arranged within the bellows tube (110), which has a terminal annular flange (160) at a tube end (150), wherein the terminal, annular flange (160) due to the inner layer of the guide tube ( 140) of the annular Flange (130) of the bellows tube (110) is surrounded. Pipe segment after Claim 1 wherein the annular flange (130) in the uninstalled state or in the installation position in the pipeline (190) has at least one property selected from the following group: a round formation (270, 280) an axially aligned oval formation, a radially oriented oval formation (280), a circular formation (270), an open to 1 to 50% training, a closed training, a continuous in the circumferential direction of the bellows (110) course, a radially inwardly formed course, one in the direction of the pipe end (120) extending beyond the at least one sealing line (240,250,250 ', 380) extending course. Pipe segment according to one of the preceding claims, wherein in the annular flange (130) an insert (400) is selected from the following group: a terminal annular flange (160) of a guide tube inserted in the interior of the bellows tube, an O-ring (410), a C-ring (420), wherein the insert (400) comprises a material selected from the following group: Iron, steel, stainless steel, stainless steel, Type X8 CrNiTil8-10 stainless steel, Type X15 CrNiSi20-12 stainless steel, Inconel 625, Inconel 718, Inconel X750, Rene 41, Waspalloy. Pipe segment according to one of the preceding claims, wherein the at least one sealing line (240, 250, 250 ', 380) has a property selected from the following group: an axial orientation, a radial orientation, an orientation (390) of the at least one sealing line (240,250,250 ', 380) at a clockwise (197) determined angle δ of 225 to 135 degrees to the axial direction (195). Pipe segment according to one of the preceding claims, wherein the pressure-tight connection (260) is formed pressure-tight in at least one parameter range selected from the following group: in a temperature range from -40 ° C to 1000 ° C, in an overpressure range of 0.1 bar to 30 bar. The tubing segment of any one of the preceding claims, wherein a conical tube portion (170) of the bellows tube (110) disposed between the annular crimp (130) and a bellows (115) of the bellows tube (110) is oriented in a direction (193) of tapering in a clockwise direction (197) angle α is arranged from 50 to 85 degrees to the axial direction. Pipe segment according to one of the preceding claims, wherein the pipe segment (100) is formed for at least one fluid selected from the following group: Exhaust gas, charge air. Pipe segment according to one of the preceding claims, wherein the bellows pipe (110) has at least one property selected from the following group: a one-ply training, a two-ply training, a three-ply training, a four-ply training, a five-ply training, a multi-level training, a training from a material comprising at least one of the following substances: Iron, steel, stainless steel, stainless steel, Type X8 CrNiTil8-10 stainless steel, Type X15 CrNiSi20-12 stainless steel, Inconel 625, Inconel 718, Inconel X750, Rene 41, Waspalloy. Pipe with a pipe segment according to one of the preceding claims, wherein the pipe segment (100) by means of a connecting device (180) is connected to the further pipe member (200), so that the annular flange (130) of the bellows pipe (110) to a sealing region (205 ) of the further pipeline component (200) is pressed. Pipe after Claim 9 wherein the connecting device (180) comprises a component selected from the group consisting of a V band clamp (185), a flange (343). Piping according to one of the preceding Claims 9 to 10 wherein the further pipeline component (200) is a component selected from the following group: a pipeline segment (100), a pipe section, an exhaust gas turbocharger, a manifold. Piping according to one of the preceding Claims 9 to 11 in that the sealing region (205) of the further pipeline component (200) has at least one functional surface selected from the following group: a radial annular surface (220, 310) which forms at least one radial sealing line (250, 250 ') with the annular flange (130) Ring surface (210) forming with the annular flange (130) at least one axial sealing line (240), a conical annular surface (290) in the orientation (300) of the conical widening at a clockwise (197) determined angle β of 10 to 170 degrees to the axial direction (195) is arranged, and thus at least one obliquely oriented sealing line (380) is formed, which is oriented in a clockwise (197) determined angle δ of 225 to 135 degrees to the axial direction (195) an annular bead (350, 3, 160, 370), in particular formed on an annular surface (210, 220, 290, 310) which forms with the annular flange (130) a sealing line (240, 250, 250 ', 380) which in a clockwise (197) determined angle δ of 225 to 135 degrees to the axial direction (195), a conical clamping ring surface (320) disposed in orientation (330) of the conical expansion at a clockwise (197) determined angle γ of 95 to 130 degrees to the axial direction (195).

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