DE102015214556A1 - Retaining element for exhaust aftertreatment component and exhaust aftertreatment component - Google Patents

Abstract

The invention relates to a holding element (1) for an exhaust gas aftertreatment component (29) which has a first end (3) and an opposite second end (5) along a longitudinal direction, a fixed bearing device (7) and a first end (3) at the first end (3) Loslagereinrichtung (9) are arranged.

Description

The invention relates to a holding element for an exhaust aftertreatment component and an exhaust aftertreatment component with such a holding element.

Depending on an application of exhaust aftertreatment components, in particular a use in the mobile sector, in particular in the field of large and especially marine vehicles, such as submarines, or in the stationary area, find various types of arrangement of exhaust aftertreatment components application. In this case, for example, an arrangement in a container or building is possible, wherein exhaust aftertreatment components can be placed on a floor or suspended in the ceiling area. Also a wall mounting is possible. To achieve a variety of different mounting options are typically different, specially adapted to the type of mounting holding elements provided what brings a high variety of parts and associated with it logistical effort and increased manufacturing costs. In addition, there is a significant likelihood of confusion during production, which in particular errors may occur that make a final assembly at the customer impossible. In addition, such specific solutions require significantly reduced flexibility, in particular because the specific installation situation must already be known at the start of production or already in the planning phase.

The invention has for its object to provide a holding element and an exhaust aftertreatment component, said disadvantages do not occur.

The object is achieved by providing the subject matters of the independent claims. Advantageous embodiments emerge from the subclaims.

The object is achieved in particular by providing a holding element for an exhaust gas aftertreatment component, which seen along a longitudinal direction has a first end and, seen in the longitudinal direction, this opposite second end. In this case, a fixed bearing device and a movable bearing device are arranged at the first end. By arranging a fixed bearing device and a movable bearing device at the first end, the retaining element can be used very flexibly, since depending on the installation position and installation of the retaining element either the fixed bearing device or the movable bearing can be used. In particular, it is possible to arrange the same holding element on two sides of an exhaust gas aftertreatment component, this being preferably arranged rotated on one side in comparison with the other side by 180 °. Preferably, a first first end of the first holding element is quasi obliquely opposite a second first end of the second holding element in a mounting plane, wherein, for example, at the first first end of the first holding element, the fixed bearing device and at the second first end of the second holding element, the movable bearing device can be used. It is thus by means of the holding element, a fixed-floating bearing arrangement, in particular for the compensation of a thermal elongation of an exhaust aftertreatment preferably with only one type of holding element in all possible cases implemented. In particular, a plurality of identical retaining elements are used on a plurality of sides of the exhaust aftertreatment component. Since there is only one type of holding element, there are many advantages. This ensures that the manufacturing process is safe in terms of manufacturing, so that the risk of defective production can be reduced. In addition, the variety of parts is reduced, resulting in logistics and storage benefits. In addition, there is an increase in flexibility, because a specific mounting position does not have to be known at the beginning of production, but thanks to the retaining element can be changed at any time. This flexibility can be used in particular if exhaust aftertreatment components must be installed quasi in a horizontal arrangement, as laterally, for example because the installation space is limited upwards.

A fixed storage device is understood here and below to mean a device which is suitable for realizing a fixed storage in all three spatial directions. Preferably, the fixed bearing device is designed as a bore, which is in particular made precisely to a fastening means, such as a bolt, a rivet or a screw, so that when attached to the fastener in any spatial direction results in a relevant game, but rather the retaining element in each spatial direction is fixed. Particularly preferably, the fixed bearing device is designed as a circular bore, whose inner diameter is matched to an outer diameter of a fastener provided accurately.

Under a movable bearing means is understood here and below a device which is adapted to the realization of a movable bearing in at least one direction and for the realization of a fixed bearing in at least one direction in which no floating bearing is realized. It is possible that the movable bearing device is designed for realizing a movable bearing in two mutually perpendicular loose bearing directions, and at the same time for the realization of a fixed bearing in the remaining, on the two Loslagerrichtungen perpendicular direction. It is also possible that the movable bearing device is adapted to the realization of a movable bearing in one direction only, wherein it is also designed to realize a fixed bearing in the two perpendicular thereto remaining directions.

The two ends of the retaining element are preferably connected to one another along the longitudinal direction by a web. In this way, a compact, stable holding element is realized, which easily attached to an exhaust aftertreatment component, in particular with this welded, glued, soldered, screwed, riveted or otherwise secured. The fixed bearing device and the floating bearing device are preferably not the attachment of the retaining element to the exhaust aftertreatment component, but rather the attachment of the arrangement of the exhaust aftertreatment component and the retaining element to a fastening device for the exhaust aftertreatment component, such as a frame or shelf. It is also possible that the holding element is formed integrally with an exhaust gas aftertreatment component.

An exemplary embodiment of the retaining element is preferred, which is characterized in that the movable bearing device is designed for realizing a movable bearing in - exactly - a loose bearing direction, namely in a first direction or in a second direction perpendicular to the first direction, the second direction and Preferably, the first direction lies / lie in an imaginary plane in which the first end extends. The floating bearing device is also designed to realize a fixed bearing in two directions, each perpendicular to the floating bearing direction and perpendicular to each other. Such a movable bearing device is used in particular to compensate for a thermal expansion in - exactly - one direction. The movable bearing device is preferably formed in this case as a slot.

An exemplary embodiment of the holding element is also preferred, which is characterized in that the movable bearing device is designed for realizing a movable bearing in two non-bearing directions, namely in a first direction and in a second direction, which is oriented perpendicular to the first direction and in an imaginary Plane is in which the first end extends, wherein the movable bearing device is designed for the realization of a fixed bearing in a direction which is perpendicular to each of the two loose bearing directions. Such a movable bearing device is used in particular to compensate for thermal expansion in two directions. The movable bearing device is preferably designed as a bore which is larger than an outer dimension of a fastening means provided for fastening, so that the fastening means is displaceable relative to the bore in two directions. It is particularly possible that the floating bearing device is designed as a square hole, preferably with rounded corners. But it is also possible that the floating bearing device has two - preferably perpendicular to each other - long holes.

The first direction also preferably extends in the imaginary plane in which the first end extends, so that both directions, that is to say the first direction and the second direction, extend in this plane.

It will be appreciated that the locating bearing device is preferably formed in each of the previously discussed cases for realizing a fixed bearing in a third direction perpendicular to the imaginary plane in which the first end extends. This imaginary plane is preferably at the same time an attachment plane in which all attachment points for the exhaust aftertreatment component are arranged. For example, it is an imaginary plane in which the exhaust aftertreatment component stands up or in which the exhaust aftertreatment component is suspended. It then requires no compensation of thermal expansion in a direction which is perpendicular to this plane, because with respect to this direction preferably no determination of a side of the exhaust aftertreatment component takes place, which the fastening side, which faces the mounting plane, is arranged opposite. The exhaust aftertreatment component may therefore freely expand or contract along this direction. In this case, manufacturing tolerances can be compensated.

An embodiment of the retaining element is preferred, which is characterized in that a fixed bearing device and a movable bearing device are arranged at the second end of the two ends of the retaining element. The movable bearing device of the second end is preferably designed for realizing a movable bearing in exactly one loose bearing direction, or for realizing a movable bearing in two loose bearing directions, as has already been explained above for the movable bearing device of the first end in alternative embodiments. In this respect, reference is made to the preceding description.

Particularly preferred is an embodiment of the retaining element, wherein the movable bearing device of the first end for realizing a movable bearing is formed in exactly one floating bearing direction, wherein at the same time at the second end of a fixed bearing device and a Locating device are arranged. In this case, the floating bearing device is preferably formed at the second end for realizing a movable bearing in exactly one loose bearing direction, and more preferably in exactly the same loose bearing direction, in which also the movable bearing is formed at the first end to realize a floating bearing. It is thus preferably realized at both ends, namely the first end and the second end, the same loose bearing directions by means of the movable bearing devices. If the holding element is now arranged on an exhaust gas aftertreatment component in the region of a first edge in a first orientation and arranged on a perpendicular to the longitudinal direction of the holding element second edge in particular inverted, rotated by 180 ° orientation, on one side at the first end of the fixed storage device be used for fastening, wherein at the second end of the first holding element, the movable bearing device is used for fastening. At the same time, the locating bearing device is preferably used at the first end of the second retaining element and the locating device is used for fastening at the second end of the second retaining element. This results in a total of attachment of the exhaust aftertreatment component, which allows compensation of thermal expansion in exactly one direction, namely the loose bearing direction of the movable bearing devices, wherein the exhaust aftertreatment component fixed on one side by the fixed storage facilities and stored variable at the other end by means of movable bearing devices in the floating bearing direction is.

But it is also possible that, for example, two holding elements are arranged parallel to each other on opposite sides of an exhaust aftertreatment component, wherein at the two first ends, which are then arranged on one side of the exhaust aftertreatment component, the fixed bearing means and at the two second ends, on an opposite Side of the exhaust aftertreatment component are arranged, the two movable bearing devices are used. It is also possible that the longitudinal directions of the holding elements extend perpendicular to the mounting plane, then four retaining elements are used for fastening, with all first ends in the mounting plane, or alternatively - seen for example along a circumferential line of the exhaust aftertreatment component in the mounting plane - alternately first and second ends of the retaining elements can be arranged. These can then be used in a corresponding manner, the fixed and movable storage facilities. It turns out that the holding element is extremely flexible, with many other applications are conceivable.

It is also preferred an embodiment of the holding element, which is characterized in that at the second end two separate movable bearing devices are arranged, which are designed for the realization of floating bearings in two mutually perpendicular loose bearing directions. At the same time, the movable bearing devices for realizing a fixed bearing are formed in a third direction, wherein the third direction is perpendicular to both loose bearing directions. The two loose bearing directions preferably extend in the imaginary plane in which the second end extends. A first movable bearing device of the two movable bearing devices is thus designed to realize a first movable bearing in a first floating bearing direction, wherein a second movable bearing device of the two movable bearing devices is designed to realize a second floating bearing in a second floating bearing direction, which is perpendicular to the first floating bearing direction. Both loose bearing directions are preferably in the imaginary plane in which the second end extends.

An imaginary plane in which the second end extends is preferably oriented parallel to an imaginary plane in which the first end extends. It is also possible that the two imaginary planes coincide.

Particularly preferred is an embodiment in which at the first end a movable bearing device for realizing a movable bearing is provided in two loose bearing directions, as already described above, wherein at the same time at the second end two separate movable bearing devices for the realization of floating bearings in two mutually perpendicular loose bearing directions are arranged. The loose bearing directions of the movable bearing devices at the second end preferably correspond to the loose bearing directions of a movable bearing device at the first end.

If such a retaining element is arranged, for example, on a first edge of an exhaust aftertreatment component in a first orientation and on a second edge of the exhaust aftertreatment element in a second, inverted, rotated by 180 ° orientation, a compensation of the thermal expansion of the exhaust aftertreatment component in two directions. In this case, the fixed bearing device is preferably used for connection at the first end of the first holding element, while one of the two movable bearing devices is used at the second end of the first holding element. In the second holding element is at the first end of the movable bearing device, which is designed to realize a movable bearing in two movable bearing devices, used for fastening, while at the second end, the other, in the first holding element not used floating bearing device is used for fastening. Due to the 180 ° rotation of the two holding elements relative to each other, the two first ends and the two second ends are each at an angle to the exhaust gas aftertreatment component in the imaginary mounting plane. It is then possible in a simple and extremely flexible way by two-time use of the same holding element compensation of the thermal expansion of the exhaust aftertreatment component in two directions.

This illustration is especially true for a holding element in which the ends extend in a plane in which also lies the longitudinal direction. On the other hand, if the ends are designed as bent-over ends, four retaining elements are preferably used for fastening, the longitudinal directions of which then extend perpendicular to the fastening plane. In this case, first and second ends are preferably arranged alternately as seen along a circumferential line in the fastening plane, the use of the fixed and movable bearing devices ultimately taking place analogously to the procedure described above.

Particularly preferred is also an embodiment of the holding element, which is characterized in that at both ends, ie at the first end and at the second end, respectively, a fixed bearing device and three movable bearing devices are provided, namely a first movable bearing device for realizing a movable bearing in - exactly - A first floating bearing, a second movable bearing for realizing a movable bearing in - exactly - a second floating bearing direction which is perpendicular to the first floating bearing direction and lies in an imaginary plane which is oriented parallel to the two ends or in which the two ends extend , And a third movable bearing device, which is designed for the realization of a movable bearing in two non-bearing directions, namely in the first and in the second floating bearing direction. In this way, the entire functionality of the retaining element is realized at both ends, so that it can be used with maximum flexibility. Also, the first floating bearing direction preferably extends in the imaginary plane, which is oriented parallel to the two ends or in which the two ends extend.

In particular, the embodiment of the holding element, which at both ends, ie at the first end and at the second end, each having a fixed bearing device and three movable bearing devices is advantageous in a horizontal arrangement of exhaust aftertreatment components, because typically a length expansion compensation in two directions is necessary you have to get along with a camp.

If, however, a standing arrangement provided, it typically requires only a length expansion compensation in one direction, so that two fixed bearing can be provided and a holding element with a simpler structure, for example with per end a fixed bearing and only one movable bearing can be used.

In this case, the terms "upright" and "horizontal" arrangement relate in particular to an orientation of a longitudinal direction of exhaust aftertreatment modules - especially bays - which are arranged in the exhaust aftertreatment component, and which are flowed through along the longitudinal direction of exhaust gas. If this longitudinal direction is perpendicular to a fastening direction, a standing arrangement is realized, but if this is oriented parallel to the fastening plane or lies in the fastening plane, a horizontal arrangement is realized. A main expansion direction extends along this longitudinal direction.

An embodiment of the retaining element is also preferred, which is characterized in that the longitudinal direction extends in an imaginary plane which is oriented parallel to the two ends. In this case, the retaining element preferably has an overall planar construction. Alternatively, it is possible that the longitudinal direction is perpendicular to imaginary planes in which the two ends extend. The two ends are then bent relative to the longitudinal direction and bent virtually perpendicular. This gives the holding element increased stability, in particular increased flexural rigidity. At the same time, the exhaust aftertreatment component can be stabilized and supported when the longitudinal direction of the retaining elements extends along a direction in which the weight of the exhaust aftertreatment component acts, in particular in a standing or suspended construction.

It is also possible to have a configuration in which the two ends are provided so bent that they extend in a plane which is oriented parallel to the plane of the longitudinal direction, but it is arranged offset to this.

An embodiment of the retaining element is also preferred, which is characterized in that it has at least one fastening element for fastening a peripheral device for the exhaust aftertreatment component. Such a fastening element can be provided, for example, as a bore on the retaining element, in particular on at least one of the two ends, preferably on both ends, or on the web connecting the two ends. A peripheral device may be, for example Be sensor that is needed for an exhaust aftertreatment control. For such sensors typically exist special installation guidelines that can be considered by appropriate arrangement and positioning of the fastener for all possible cases. Such a peripheral device may also be a reductant after-treatment component reductant supply having a selective catalytic reduction catalyst (SCR catalyst).

The object is also achieved by providing an exhaust aftertreatment component having a retaining element according to one of the previously described embodiments. In this case, realized in connection with the exhaust aftertreatment component, the advantages that have already been explained in connection with the holding element.

The exhaust aftertreatment component preferably has a rectangular base and is particularly preferably formed as a cuboid or cube.

Preferably, the exhaust aftertreatment component has at least two, in particular exactly two, holding elements, which are arranged on two edges on a fastening side of the exhaust gas aftertreatment component. In this case, the two edges preferably face each other in a direction which extends in the fastening plane perpendicular to the longitudinal direction of the retaining elements, wherein the longitudinal directions of the retaining elements are preferably oriented parallel to the longitudinal directions of the edges. An exemplary embodiment of the exhaust gas aftertreatment component is also preferred, which has four retaining elements, wherein two retaining elements are provided on each of two edges on two fastening sides. It is also possible that the edges do not extend along the attachment sides, but rather perpendicular to the attachment sides and in particular perpendicular to an imaginary attachment plane, in particular when the retaining element has vertically bent ends.

Preferably, a transport lock is provided, which is set up to set a movable bearing or realized by means of a movable bearing floating bearing for transport purposes, so to redesign to a fixed bearing. The transport lock is then removable for the operation of the exhaust aftertreatment component outside a transport case, so that then a compensation of the thermal expansion in operation is possible.

An exemplary embodiment of the exhaust aftertreatment component is preferred, which is characterized in that the exhaust aftertreatment component is designed as a particle filter or as a catalyst for the selective catalytic reduction of nitrogen oxides (SCR catalyst). Particularly preferably, the exhaust aftertreatment component is designed as an exhaust gas box, which receives a plurality of exhaust aftertreatment modules, wherein the modules are designed as SCR catalysts or as a particle filter. Such exhaust gas boxes are used in particular in large marine engines or in stationary applications. It is also possible that the exhaust aftertreatment component is formed as an oxidation catalyst or in another suitable manner.

The invention also includes an internal combustion engine having an exhaust aftertreatment component according to one of the embodiments described above. In particular, the advantages that have already been explained in connection with the retaining element and the exhaust gas aftertreatment component are realized.

The internal combustion engine is preferably designed as a reciprocating engine. It is possible that the internal combustion engine is arranged to drive a passenger car, a truck or a commercial vehicle. In a preferred embodiment, the internal combustion engine is used to drive in particular heavy land or water vehicles, such as mine vehicles, trains, the internal combustion engine is used in a locomotive or a railcar, or ships. It is also possible to use the internal combustion engine to drive a defense vehicle, for example a tank. An exemplary embodiment of the internal combustion engine is preferably also stationary, for example, used for stationary power supply in emergency operation, continuous load operation or peak load operation, the internal combustion engine in this case preferably drives a generator. A stationary application of the internal combustion engine for driving auxiliary equipment, such as fire pumps on oil rigs, is possible. Furthermore, an application of the internal combustion engine in the field of promoting fossil raw materials and in particular fuels, for example oil and / or gas, possible. It is also possible to use the internal combustion engine in the industrial sector or in the field of construction, for example in a construction or construction machine, for example in a crane or an excavator. The internal combustion engine is preferably designed as a diesel engine, as a gasoline engine, as a gas engine for operation with natural gas, biogas, special gas or another suitable gas. In particular, when the internal combustion engine is designed as a gas engine, it is suitable for use in a cogeneration plant suitable for stationary power generation.

The invention will be explained in more detail below with reference to the drawing. Showing:

1 a schematic representation of a first embodiment of a holding element;

2 a schematic representation of a second embodiment of a holding element;

3 a schematic representation of a third embodiment of a holding element;

4 a schematic representation of a possible attachment of an exhaust aftertreatment component using the second embodiment of the holding element according to 2 ;

5 a representation of an arrangement of two embodiments of exhaust aftertreatment components, and

6 a representation of a combination of a holding element with a transport lock.

1 shows a representation of a first embodiment of a holding element 1 for an exhaust aftertreatment component having two ends along a longitudinal direction indicated by a dashed line L, namely, a first end 3 and a second end opposite this, viewed longitudinally 5 , At the first end 3 are a fixed storage facility 7 and a floating bearing device 9 arranged.

The fixed storage facility 7 is here as a circular hole 11 formed, whose inner diameter is matched to an outer diameter of a fastening means, not shown, for example, a screw or a rivet, so that the retaining element 1 by means of the fixed storage facility 7 can be fixed in all three spatial directions. The fixed storage facility 7 is therefore set up to realize a permanent camp in all three spatial directions.

The floating bearing device 9 is here designed for the realization of a movable bearing in exactly one loose bearing direction along a first direction, which is in 1 extends vertically. At the same time is the floating bearing 9 arranged for the realization of a fixed bearing in two directions, namely on the one hand in the longitudinal direction of the retaining element 1 and on the other in a direction which is perpendicular to the longitudinal direction and in the floating bearing direction of the movable bearing device 9 stands. The floating bearing device 9 is here as a slot 13 educated.

Alternatively, it is possible that the loose bearing direction of the movable bearing 9 extends perpendicular to the non-locating direction shown here and perpendicular to the longitudinal direction, as is schematically indicated by a dashed border U.

The first end 3 and the second end 5 are together by a jetty 15 connected.

At the second end 5 is also a fixed storage facility 17 - Preferably in the form of a circular bore - and a movable bearing 19 - Preferably in the form of a slot - arranged. The floating storage facilities 9 . 19 preferably have identical loose bearing directions. Also in the area of the second end 5 is represented by a dashed border U ', that the loose bearing direction of the movable bearing 19 also in a further direction perpendicular to the loose bearing direction of the movable bearing device 19 and could extend perpendicular to the longitudinal direction.

In the embodiment shown here, the longitudinal direction L is perpendicular to the two ends 3 . 5 , these are therefore as vertically bent ends 3 . 5 educated. In such a case, four such retaining elements are preferred at four parallel edges of an exhaust gas aftertreatment element 1 attached, with their first ends 3 and / or their second ends 5 lie in a mounting plane in four corners. It will then be preferred on a first page, the fixed storage facilities 7 . 17 and on a second, opposite side of the movable bearing devices 9 . 19 used for attachment. The exhaust aftertreatment component may then expand along the direction in which the two sides are facing one another.

2 shows a schematic representation of a second embodiment of a holding element 1 , Identical and functionally identical elements are provided with the same reference numerals, so that reference is made to the preceding description. In the embodiment shown here, the movable bearing device 9 at the first end 3 for the realization of a loose bearing in two loose bearing directions, namely in a first direction and in a second direction perpendicular to the first direction in an imaginary plane in which the first end 3 extends, wherein the movable bearing device 9 for the realization of a fixed bearing is formed in a direction perpendicular to each of the two loose bearing directions, this direction is here in particular the longitudinal direction. The floating bearing device 9 is here in particular as a bore 23 formed, which is larger than an attachment provided for fastening means, so that this relative to the holding element 1 is displaceable in two directions. In particular, the Loslagereinrichtung 9 as a square hole, preferably with rounded corners formed.

At the second end 5 Here two separate movable bearing devices are arranged, namely a first movable bearing device 19 and a second floating bearing device 21 , Which are each designed to realize a movable bearing in a floating bearing direction, wherein the two loose bearing directions are perpendicular to each other and lie in the imaginary plane in which the second end 5 extends. The floating storage facilities 19 . 21 are also designed to realize a fixed bearing in a third direction, said third direction perpendicular to the two loose bearing directions and in particular perpendicular to the imaginary plane of the second end 5 stands. The third direction is especially the longitudinal direction.

3 shows a representation of a third embodiment of a holding element 1 , Identical and functionally identical elements are provided with the same reference numerals, so that reference is made to the preceding description. In this embodiment are at both ends 3 . 5 each a fixed storage facility 7 . 17 and each three movable storage facilities 9.1 . 9.2 . 9.3 . 19.1 . 19.2 . 19.3 provided, namely in each case a first movable bearing device 9.1 for realizing a loose bearing in a first floating bearing direction, a second movable bearing device 9.2 for realizing a floating bearing in a second floating bearing direction, which is perpendicular to the first floating bearing direction and lies in an imaginary plane which is parallel to the two ends 3 . 5 oriented, and a third floating bearing 9.3 , which is designed for the realization of a movable bearing in the first floating bearing direction and in the second floating bearing direction. In this case, the first and the second movable bearing device 9.1 . 9.2 preferably formed as a slot, wherein the third movable bearing 9.3 . 19.3 is preferably formed as a bore with internal dimension, which is greater than a corresponding outer dimension of a fastening means provided for fastening.

It is possible that the retaining element 1 stiffening struts 25 has, of which in particular a stiffening strut 25 it can be seen which for stiffening the retaining element 1 and in particular the bent ends 3 . 5 serve.

In the embodiment of the holding element shown here 1 is also seen that this is preferably at least one fastener 27 , here two fasteners 27.1 . 27.2 in the form of a circular bore and in the form of a long hole, which are provided for attachment of a peripheral device for the exhaust aftertreatment component. Such a peripheral device can be, for example, a sensor system or a reducing agent metering device.

4 shows a schematic representation of the operation of a fastening of an exhaust aftertreatment component, not shown, with the embodiment of the holding element 1 according to 2 , Identical and functionally identical elements are provided with the same reference numerals, so that reference is made to the preceding description. In the picture plane of 4 a fastening plane E (xy plane) is shown, in which the bent ends of four retaining elements 1 that is, seen along a circumferential line of the mounting plane E in a mathematically positive sense - the first end 03.01 a first holding element 1.1 , the second cranked end 5.2 a second retaining element 1.2 , the first cranked end 3.3 a third holding element 1.3 , and the second cranked end 5.4 a fourth holding element 1.4 are shown. The longitudinal directions of the holding elements 1 extend perpendicular to the mounting plane E. Starting from the first holding element 1.1 - Considered along the circumference in a mathematically positive sense - the holding elements are each arranged alternately rotated by 180 °, so that the viewer alternately the two ends 3 . 5 the holding elements 1 are facing. Here are the first ends 03.01 . 3.3 arranged diagonally opposite each other, wherein also the second ends 5.2 . 5.4 are arranged diagonally opposite each other.

In 4 In addition, a coordinate system is shown, which shows that here an x-direction in the image plane of 4 extending horizontally, a y-direction vertically, wherein a z-direction is perpendicular to the image plane.

All storage facilities shown here realize fixed storage in z-direction. This is because an exhaust aftertreatment component is typically mounted only in a mounting plane so that it can expand freely perpendicular to the mounting plane without the need for a floating bearing.

The following is now shown for attachment: At the first end 03.01 of the first holding element 1.1 is the fixed camp 7.1 used for attachment, which is each designated by a circle with a cross, so that no play occurs here, but rather a determination in all three spatial directions x, y, z is given. If you proceed counterclockwise to the second holding element 1.2 , it turns out that here is the second floating bearing 21.2 used for fastening. The thus attached exhaust aftertreatment component can therefore extend to the right in the positive x-direction. The representation according to 4 by the way is one Representation in the cold state, so that expansion in heating in the positive x-direction is possible.

In turn, one proceeds further counterclockwise to the third holding element 1.3 , it turns out that here is the floating bearing 9.3 used for fastening. It can therefore be a displacement in both the x-direction and in the y-direction.

Again progressing counterclockwise continues to show at the fourth retaining element 1.4 in that here now the first floating bearing device 19.2 the second end 5.4 has been used for attachment, so that an extension can take place in the positive y-direction.

Overall, therefore, by the first holding element 1.1 a determination in all three spatial directions, the second holding element 1.2 allows a displacement in the x-direction with simultaneous fixing in the y-direction and in the z-direction, the third holding element 1.3 allows a displacement in the x-direction and in the y-direction with simultaneous fixing in the z-direction, and the fourth holding element 1.4 allows a displacement in the y-direction with simultaneous fixing in the x-direction and in the z-direction. Starting from the fixed point of the fixed storage facility 7.1 of the first holding element 1.1 Thus, a thermal expansion in both the x and in the y direction is possible.

It is also possible that the longitudinal direction of the retaining element 1 in an imaginary plane parallel to the two ends 3 . 5 extends. These are then preferably not formed bent, but the holding element 1 is altogether even.

In such a case, preferably in the mounting plane according to 4 no four retaining elements 1 but only two holding elements 1 one of which is preferably rotated 180 ° relative to the other. In this case, the fixed bearing device would then be at the first end of the first holding element 7 and at the first end of the second holding member, the movable bearing device 9 used for attachment. At the second end of the second holding element, the first movable bearing device 19 used for fastening, wherein at the second end of the second holding element, the second movable bearing device 21 would be used for attachment. Overall, the same picture as in 4 , except that just the webs 15 the two holding elements in the mounting plane, thus the image plane 4 would extend, and that instead of four retaining elements only two holding elements would be used.

5 shows a representation of an arrangement of two exhaust aftertreatment components 29.1 . 29.2 wherein each of the exhaust aftertreatment component 29.1 . 29.2 four retaining elements 1 each having two holding elements 1 along opposite, parallel edges on one side and on one side of the attachment 31 opposite side 33 on the other hand on the exhaust aftertreatment components 29.1 . 29.2 are attached. The exhaust aftertreatment components 29.1 . 29.2 are here with those at their attachment side 31 arranged holding elements 1 on a frame 35 attached. Here are on the frame 35 bearing elements 37 for the storage of exhaust aftertreatment components 29.1 . 29.2 intended.

The holding elements shown here 1 have first and second ends defining an imaginary plane in which the longitudinal direction lies. In addition, the holding elements 1 cranked portions at the first and second ends, wherein at the cranked portions further fixed and movable bearing means are provided, as previously for the first and second ends of the holding elements 1 was explained. This has the advantage that the holding elements shown here 1 are particularly flexible, because by arranging only four identical - but preferably alternately rotated by 180 ° - holding elements at four edges of an exhaust aftertreatment component 29.1 . 29.2 six different mounting levels can be created with equivalent mounting options, so a maximum flexibility in the attachment of the exhaust aftertreatment components 29.1 . 29.2 is reached. These can - as in 5 shown - set up, suspended from a ceiling, attached to a wall, installed in a shelving system, or fixed in many other ways, especially in horizontal arrangement of the exhaust aftertreatment components 29.1 . 29.2 , For each of the six sides of the cuboid exhaust aftertreatment components stands 29.1 . 29.2 an attachment level available.

The exhaust aftertreatment components 29.1 . 29.2 are with each other, preferably by a here indicated only by two dashed lines compensator 39 , connected. It is preferably provided that they at least in the direction of the compensator 39 , in particular along their connecting line to expand toward each other, so that a thermal expansion in this direction is compensated.

The first exhaust aftertreatment component 29.1 is preferably formed as a combined oxidation catalyst particulate filter module. The second exhaust aftertreatment component 29.2 is preferably designed as a module for the selective catalytic reduction of nitrogen oxides (SCR module).

6 shows in a) a schematic representation of an arrangement of a holding element 1 on a bearing element 37 using a transport lock 41 , The bearing element 37 is preferably elastic and designed as a buffer. It has an internal thread 43 in which a fixing screw 45 is screwed. Between the holding element 1 and the bearing element 37 is an assignment 47 arranged on which a bottom 49 of the holding element 1 rests. A head 51 the fixing screw 45 relies on a lower element 53 from.

Thinking about the transport lock 41 away, is here by means of, for example, a floating bearing device 9 as a long hole 13 is formed, realized a floating bearing, wherein the use 47 the slot 13 with an insert neck 55 passes through, with the insert neck 55 with a support surface 57 over one of the bottom 49 opposite top 59 of the holding element 1 survives. The lower element 53 is therefore not in the application on the top 59 but rather on the support surface 57 of the insert neck 55 on, so that the retaining element 1 is not clamped so that no relative movement between the insert neck 55 and the fixing screw 45 on the one hand and the slot 13 on the other hand would be possible. So here, in particular, a floating bearing in - in 6 - realized in a horizontal direction.

Since this can be unfavorable for transport purposes, in this case, the transport protection is preferred 41 intended. This has an open-edged recess 61 on, with which they turn the over the top 59 excellent area of the insert neck 55 embraces. At the same time then lies the Unterlegelement 53 on the transport lock 41 on, in turn, on the top 59 of the holding element 1 rests, so that the overall holding element 1 safe and secure to the bearing element 37 - In all three directions - can be fixed. So it can be done using the transport lock 41 a fixed bearing in all three spatial directions in the area of the floating bearing device 9 be realized.

6b) shows the transport lock 41 , Here, in particular, the open-edged recess 61 recognizable.

At the destination, the transport safety device can be used for operational purposes 41 be easily removed by the fixing screw 45 easily released and the transport lock is pulled out. Subsequently, the fastening screw 45 be tightened again, and the floating bearing 9 realized again in the manner already described a floating bearing in at least one direction.

Overall, it turns out that it is possible using the holding element described here to implement a fixed-floating bearing assembly, in particular for compensating the thermal elongation of an exhaust aftertreatment component in a variety of possible installation cases. In this case, a certainty of confusion in the production can be achieved, and there are logistical and storage advantages.

Claims (10)

Retaining element ( 1 ) for an exhaust aftertreatment component ( 29 ), which along a longitudinal direction has a first end ( 3 ) and an opposite second end ( 5 ), wherein at the first end ( 3 ) a fixed storage facility ( 7 ) and a floating bearing device ( 9 ) are arranged. Retaining element ( 1 ) according to claim 1, characterized in that the movable bearing device ( 9 ) for realizing a loose bearing in a non-bearing direction, namely in a first direction or in a direction perpendicular to the first direction, in an imaginary plane in which the first end extends is formed, wherein the movable bearing ( 9 ) is designed for the realization of a fixed bearing in two directions, which are perpendicular to the floating bearing direction and perpendicular to each other. Retaining element ( 1 ) according to one of the preceding claims, characterized in that the movable bearing device ( 9 ) for realizing a loose bearing in two non-bearing directions, namely in a first direction and in a second direction perpendicular to the first direction in an imaginary plane, in which the first end ( 3 ) is formed, wherein the movable bearing device ( 9 ) is designed for the realization of a fixed bearing in a third direction, which is perpendicular to each of the two loose bearing directions. Retaining element ( 1 ) according to one of the preceding claims, characterized in that at the second end ( 5 ) a fixed storage facility ( 17 ) and a floating bearing device ( 19 ) are arranged. Retaining element ( 1 ) according to one of the preceding claims, that at the second end ( 5 ) two separate movable bearing devices ( 19 . 21 ) are arranged, which are designed for the realization of floating bearings in two mutually perpendicular loose bearing directions, wherein the movable bearing devices ( 19 . 21 ) are designed for the realization of a fixed bearing in a third direction, wherein the third direction is perpendicular to the two loose bearing directions. Retaining element ( 1 ) according to one of the preceding claims, characterized in that both ends ( 3 . 5 ) a fixed storage facility ( 7 . 17 ) and three non-locating devices ( 9.1 . 9.2 . 9.3 ; 19.1 . 19.2 . 19.3 ) are provided, namely a first movable bearing device ( 9.1 . 9.2 ) for realizing a loose bearing in a first floating bearing direction, a second movable bearing device ( 9.2 . 19.2 ) for realizing a non-locating bearing in a second non-locating direction which is perpendicular to the first non-locating direction and lies in an imaginary plane parallel to the two ends ( 3 . 5 ), and a third floating bearing device ( 9.3 . 19.3 ), which is designed for the realization of a movable bearing in the first floating bearing direction and in the second floating bearing direction. Retaining element ( 1 ) according to one of the preceding claims, characterized in that the longitudinal direction extends in an imaginary plane parallel to the two ends ( 3 . 5 ), or that the longitudinal direction perpendicular to the two ends ( 3 . 5 ) stands. Retaining element ( 1 ) according to one of the preceding claims, characterized by at least one fastening element for fastening a peripheral device for the exhaust aftertreatment component. Exhaust aftertreatment component ( 29 ), with at least one retaining element ( 1 ) according to one of claims 1 to 8. Exhaust aftertreatment component ( 29 ) according to claim 9, characterized in that the exhaust aftertreatment component ( 29 ) is designed as an SCR catalyst or as a particle filter.

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