DE102005050803B4 - Fuel tank - Google Patents

Abstract

Fuel tank for commercial vehicles having a Behälterumfangswandung, two Behälterstirnwandungen and at least one intermediate wall, wherein the fuel tank consists of at least three sleeve-like modules, which are each integrally formed and have a peripheral wall and an end wall, wherein the sleeve-like modules (4) are composed such that an end wall (6) of a sleeve-like module (4a) forms a container end wall (2) and an end wall (6) of another module (4b) forms an intermediate wall (3) and the peripheral wall (5) of the sleeve-like module (4) with its inner Peripheral wall on a support shoulder (6a, 15, 17) rests, wherein a sealing means (8) on the outside each between the ends of the peripheral walls (5) of the sleeve-like modules (4) is applied, characterized in that at least one intermediate wall element (10) is present , which is provided with metal inserts, which of a Kunststof f are included and / or overmoulded with a high degree of fiber filling.

Description

The invention relates to a fuel tank, in particular for utility vehicles, having a tank peripheral wall, two container end walls and at least one intermediate wall according to the preamble of claim 1.

The general structure of fuel tanks is on the EP 0 799 739 B1 directed.

The at least one intermediate wall between the two Behälterstirnwandungen may have multiple functions. For longer fuel tanks, for weight reasons often made of a lighter material, eg. As aluminum or plastic, consist, serve one or more partitions to stabilize the fuel tank. If the intermediate wall is sealed into the interior of the fuel tank, complete separation into two tank parts can also be achieved.

Commercial vehicles of the newer generation often require a fuel tank, which is divided into at least two separate chambers, since one of the chambers for receiving fuel and the other is designed to receive urea.

Frequently, the intermediate walls also serve as so-called baffles, which, inter alia, have the task of delaying an offset or movements of the tank contents due to loads occurring during the driving operation of a vehicle so as to reduce forces on the container or its wall.

For this purpose, the baffles have one or more passage openings or are even formed as perforated plates, which are installed in the fuel tank transversely to the main direction of movement of the content.

For commercial vehicles, especially for commercial vehicles that are in heavy terrain in use, a high stability of the fuel tank is required. This applies in particular with regard to vibrations and resonances, which can result in a momentum, which therefore make increased demands on a fuel tank. In order to meet these requirements, the one or more intermediate walls are correspondingly stable and connected on the inside with the peripheral wall of the fuel tank. This is usually done by welding.

The disadvantage here, however, is that the introduction or the connection of the intermediate wall or the intermediate walls with the peripheral wall is relatively complex. So z. B.

Welds are introduced inside the fuel tank. Another disadvantage is that relatively tight tolerances for introducing the intermediate wall or the intermediate walls are to be considered in the interior of the fuel tank.

From the DE 202 05 971 U1 a fuel tank is known which is formed essentially by a container peripheral wall and two Behälterstirnwandungen. The Behälterumfangswandung is tubular and is closed at the two open ends in each case by a Behälterstirnwandung. The attachment of the container end wall at the open ends of the tubular container peripheral wall is usually carried out by welding. The container end walls generally have a bowl-shaped depression, so that a peripheral edge is formed, which is suitable for welding to the open end of the container peripheral wall. The container peripheral wall is bent by means of appropriate forming tools from a sheet in the intended tubular shape, then the two ends of the sheet are welded by a longitudinal seam.

Before the Behälterstirnwandungen be welded to the open ends of the tubular Behälterumfangswandung, at least one intermediate wall (as a partition wall, stabilizing wall or as a baffle wall) is usually introduced into the container interior and welded from the inside.

The disadvantage of this is that there is no way after welding the Behälterstirnwandungen to rework the inner weld of the partition. In addition, the internal welding of the intermediate wall in the handling is complicated and expensive.

This effort increases all the more intermediate walls to be introduced.

From the DE 203 14 249 U1 a fuel tank is known, is dispensed with in the preparation of a Behälterumfangswandung of a bent sheet metal. It is provided that at least one end wall is integrally formed with a part of the peripheral wall of a sleeve. Preferably, two such sleeves are provided, which are orbitally welded together at their open end faces. The bending of sheet metal for creating a tubular Behälterumfangswandung and welding them by means of a longitudinal seam is thus no longer necessary. Furthermore, eliminates the previously necessary welding work to aufzuschweißen a Behälterstirnwandung on the peripheral wall. All that is needed is a welding process, namely the two to weld container-shaped sleeves together. According to the DE 203 14 249 U1 it is further provided that between the two sleeves, a tubular extension element can be used. Optionally, intermediate walls may also be introduced into the container interior and welded from the inside or from the outside before the orbital welding of the two open end faces of the sleeves.

From the DE 44 42 780 A1 is a fuel tank according to the preamble known.

A disadvantage of all fuel tanks is that they must be made in a variety of different diameters, lengths and shapes due to the variety of different commercial vehicles, the stability must be optimized.

The present invention has for its object to provide a fuel tank, in particular for commercial vehicles, which is provided in a simple and cost-effective manner, at least with an intermediate wall element to increase the stability, which is formed from a few individual parts and allows rapid production.

According to the invention this object is achieved by the fuel tank of claim 1.

Characterized in that the fuel tank is composed of at least three sleeve-like modules such that an end wall of a sleeve-like module a Behälterstirnwandung and an end wall of another module forms an intermediate wall, the fuel tank receives a high stability and rigidity. The production of the intermediate wall such that it is designed as an end wall of a sleeve-like module, causes a particularly high stability. A complex welding of the intermediate wall from the inside with a container peripheral wall can thus be dispensed with. A bending of sheet metal to a tubular container and then attaching a longitudinal weld is also no longer necessary by the construction of the fuel tank according to the invention. Characterized in that one of the at least three sleeve-like modules forms with its end wall a Behälterstirnwandung, also eliminates the previously necessary in most known fuel tanks welding the Behälterstirnwandung.

Unlike the DE 203 14 249 U1 , in which two sleeve-like modules have been welded together with their open end faces, the fuel tank according to the invention with the selected arrangement of the sleeve-like modules is arbitrarily expandable. Here, various possibilities are conceivable.

There is provided a further sleeve-like module which is assembled with the other modules in such a way that the end wall of the further module forms the second container end wall. The fuel tank is thus composed of three sleeve-like modules, which each cause a high stability and rigidity. The intermediate wall and the two Behälterstirnwandungen are each formed by an end wall of a sleeve-like module.

A particularly high stability results from the use of intermediate wall elements with metal inserts, which are of a plastic with high Faserfüllgrad included / overmoulded.

However, the fuel tank according to the invention is not limited to the composition by three sleeve-like modules. Rather, the length of the fuel tank according to the invention can be varied almost arbitrarily. In a constructional embodiment of the invention, at least one further sleeve-like module can be provided, which is assembled with the other modules in such a way that the end walls of the further modules each form an intermediate wall. Thus, the fuel tank can be composed of any number of sleeve-like modules, each contributing to the stability of the fuel tank. A first sleeve-like module can be aligned such that its end wall forms a first Behälterstirnwandung. The open end of the sleeve-like module is then connected to the end wall of a second sleeve-like module. Its open end wall is connected to the end wall of another sleeve-like module. This principle, similar to the stacking of coffee cups, can be extended almost arbitrarily. It can be provided that the last sleeve-like module is rotated by 180 ° (compared with the arrangement of the other modules) such that its open end face is adjacent to the open end side of the penultimate module. The end wall of the last module thus forms the second Behälterstirnwandung and includes the fuel tank.

Alternatively to the last sleeve-like module, d. H. to the module, which forms the second end wall, may also be provided a closing element which forms the second Behälterstirnwandung and closes the open end of an intermediate wall forming a sleeve-like module.

Such an end element may be advantageous for certain applications instead of another sleeve-like module, for example, when the tank should not exceed a predetermined length. It is advantageous if that End element is provided on its outer circumference with a directed to the other Behälterstirnwandung support shoulder, wherein the peripheral wall of the adjacent sleeve-like module is sealed to the support shoulder. It can be provided that the peripheral wall of the adjacent sleeve-like module rests with its inner circumferential wall on the support shoulder.

As has been found in experiments, this allows a stable and secure connection of the peripheral wall with the closing element. It is advantageous if, from the outside with a sealing agent, for. B. an orbitalen welding or bonding, a connection between the end element and its support shoulder and the peripheral wall is made.

Depending on the design of the fuel tank, the intermediate walls can be designed as partitions and / or stabilizing walls and / or baffles. By means of an embodiment of the intermediate walls as a partition, urea, for example, can be separated from the remaining fuel. The design of the intermediate walls as stabilizing walls increases stability, while the design of the intermediate walls as baffles reduces a surge of the filled fluid. The openings or the openings of the baffles can preferably be punched out. This makes it possible that the sleeve-shaped modules are manufactured standardized, preferably with an end wall, which is formed as a closed partition. In this embodiment, the sleeve-like module can be used both for the formation of partitions and for the formation of container end walls. Through a simple introduction of breakthroughs can be produced from the closed partitions baffles.

This makes it possible that with a few individual parts, namely a sleeve-like module with a closed end wall, different fuel tank or fuel tank sections can be formed. The inventive arrangement of the sleeve-like modules additionally allows the formation of different lengths of fuel tanks based on the same sleeve-like modules.

In this case, it can preferably be provided that the sleeve-like module is manufactured in two to five, preferably three, different lengths. A combination of sleeve-like modules of different lengths, as the inventor has found, can map most common sizes of fuel tanks. The sleeve-like modules may for example have lengths of 200, 350 and 500 mm.

It can also be advantageous if the sleeve-like modules are manufactured in two to five, preferably three, different diameters. As the inventor has also found out, with three different diameters most common formats can be reproduced.

An advantageous connection of two adjacent sleeve-shaped modules results from the fact that their joints overlap at least partially. It is advantageous if the end wall of a sleeve-like module is designed such that it is at least partially introduced into the open end of an adjacent sleeve-like module. Thus, a sealing means, for. As a weld or adhesive bond, orbital be applied from the outside. Here, known methods and substances can be used.

It is particularly advantageous if the sleeve-like modules are pushed together in such a way that between the open end of the one module and the end wall or the overlap of the other module remains a circumferential triangular or notch-shaped space for welding or gluing the modules.

It is also advantageous if the end wall has at least in a partial area, which faces the open end side of another module, an outer diameter which is smaller than the inner diameter of the open end side of the other module. Thus, the end wall can be easily introduced or plugged into the open end of another module. It is particularly advantageous if the end wall forms a support shoulder on which rests the open end face or the peripheral wall of the other sleeve-like module with its inner circumferential wall. Preferably, it can be provided that the height of the support shoulder to the upper edge of the peripheral wall at least approximately corresponds to the thickness of the peripheral wall. It is thereby achieved that after the connection of two sleeve-like modules, a container peripheral wall is formed, which has continuous, at least approximately the same outer diameter.

A support shoulder can be formed in a simple manner by the fact that the end wall tapers, starting from the peripheral wall. The sleeve-like module, which is to be connected with its open end face with the end wall of the other sleeve-like module, can thus be pushed or plugged in a simple manner.

It is advantageous if the end wall of a sleeve-like module with an open end side of an adjacent module is at least partially connected or prefixed by a form or contour closure. Preferably, the positive connection can be designed such that it supports a subsequent joining process.

In a development of the invention, it may further be provided that an end wall has a sleeve-like module and an open end side of another module, which are assembled together, plug connection elements for generating a plug connection. The plug connection elements, which may be formed, for example, as leading elements and corresponding counterparts, on the one hand support a joining process or increase the stability during use of the fuel tank, on the other hand, it is conceivable that the connector completely or substantially alone the connection between the sleeve-like modules manufactures. It may be necessary in this case, the connector only be supplemented by a simple sealant.

It is advantageous if a sleeve-like module with functional elements, such as a filter, a filler neck, a level sensor, a water separator or the like, is formed. Such a configuration reduces manufacturing costs and makes it possible to produce standardized fuel tanks. Due to the modular design of the fuel tank, the functional elements can be easily and easily introduced.

In a particularly advantageous embodiment and development of the invention may further be provided at least one intermediate wall element which is arranged between the open end faces of two adjacent sleeve-like modules, wherein the intermediate wall element has an at least approximately annular head portion, are arranged on the two sides directed to the Behälterstirnwandungen bearing shoulders wherein the peripheral walls of the adjacent sleeve-like modules are each tightly connected to one of the two support shoulders.

By means of the intermediate wall element, two sleeve-like modules can be connected to one another in a particularly simple manner by means of their open front side or their circumferential wall. This allows a significant manufacturing simplification. The intermediate wall element not only takes over the known advantages of an intermediate wall, but also contributes to the stability of the fuel tank. This is particularly true when it is provided in a very advantageous embodiment of the invention that the peripheral walls of the sleeve-like modules each rest with its inner peripheral wall on the support shoulder. In this embodiment, it is only necessary to defer the peripheral wall on both sides of the support shoulders and then to ensure a tight and resilient connection. Even larger tolerances are easily compensated.

In this embodiment according to the invention it is provided that sealing means are applied on the outside respectively between the peripheral walls of the sleeve-like modules and the head part of the intermediate wall element. This means that in addition to a manufacturing simplification now also the connection between the intermediate wall element or the intermediate wall elements and the adjacent peripheral walls of the fuel tank is much easier. Instead of the cumbersome introduction of sealing means in the interior of the container peripheral wall for connection to the intermediate wall, it is only necessary sealing means such. As an orbital welding, bonding or other joining means to apply outside.

The application of a weld between the side portions of the head portion and the peripheral walls of the sleeve-like modules allows a further advantageous embodiment of the invention such that the outer peripheral wall of the intermediate wall member or the head portion can be at least approximately flush with the outer peripheral walls of the peripheral wall of the modules. By this configuration, protruding edges, which can lead to injury or damage avoided. In addition, results in this way, a visually appealing design for the fuel tank, the z. B. is often visible on commercial vehicles in the vehicle.

It is advantageous if the height of the support shoulders to the upper edge of the head part in each case at least approximately corresponds to the thickness of the peripheral wall of the sleeve-like modules.

The connection between a peripheral wall of a sleeve-like module and said support shoulders, be it with respect to the intermediate wall elements, the end element or the end wall of another sleeve-like module, takes place in principle in the same manner. It is advantageous if the sleeve-like modules, the intermediate wall elements and the end element (insofar existing) are connected to each other by gluing and / or welding.

The sleeve-like modules, the intermediate wall elements and the closing element (in this respect available) can be formed both of plastic and of metal. In one embodiment of metal, an embodiment of steel, stainless steel or aluminum or an aluminum, steel or stainless steel alloy has been found to be particularly suitable.

It is also possible to manufacture the sleeve-like modules and the intermediate wall element from different materials, for example the plastic intermediate element and the metal modules (eg steel, stainless steel, aluminum or corresponding alloys) or vice versa. This can result in corresponding advantages for different applications (eg with regard to weight, stability, adhesion, corrosion resistance, appearance).

A particularly high stability results for the intermediate wall element from the fact that this is made of a material mix of metal and plastic (so-called hybrid construction). For this purpose, it is provided that the intermediate wall element is provided with metal inserts, which are encompassed / encapsulated by a plastic with a high degree of fiber filling. Experiments have shown that such an intermediate wall element can accommodate particularly high support forces and dynamic forces.

Advantageous embodiments and modifications of the invention will become apparent from the other dependent claims. An exemplary embodiment of the invention is shown in principle below with reference to the drawing.

It shows:

1 a perspective view of a fuel tank with three sleeve-like modules and an intermediate wall element;

2 a longitudinal section through the fuel tank after 1 ;

3 a longitudinal section through a fuel tank with four sleeve-like modules and an intermediate wall element;

4 a longitudinal section through a fuel tank with three sleeve-like modules;

5 a longitudinal section through a fuel tank with three sleeve-like modules, wherein a sleeve-like module has a taper at its open end side; and

6 a fuel tank with two sleeve-like modules and a closing element.

The embodiments shown and described below each show fuel tanks that are designed for commercial vehicles. Of course, the invention is not limited to such containers. The term "fuel tank" should also include those for land, sea and air vehicles. Since fuel tanks of this type are well known, will be discussed in more detail below only on the essential parts of the invention for the fuel tank.

Like from the 1 to 3 it can be seen, the illustrated fuel tank according to the invention each have a Behälterumfangswandung 1 , two container end walls 2 and at least one partition 3 on. The fuel tanks each consist of at least two sleeve-like modules 4 together. The sleeve-like modules 4 are each integrally formed and have a peripheral wall 5 and an end wall 6 on. The sleeve-like modules 4 are composed in such a way that an end wall 6 a sleeve-like module 4 a container end wall 2 and an end wall 6 another module 4 an intermediate wall 3 forms.

The fuel tank according to the invention according to 1 and 2 consists essentially of three sleeve-like modules 4 together.

The end wall of a first sleeve-like module 4a forms a first container wall 2 out. The open front 7 of the sleeve-like module 4a is doing with a second sleeve-like module 4b connected. Here is the end wall 6 of the sleeve-like module 4b in the open front 7 of the first sleeve-like module 4a plugged in. In the exemplary embodiment, it is provided that the insertion already results in a positive connection in such a way that it provides a prefixing of the two sleeve-like modules 4a . 4b allows each other.

The sleeve-like module 4b has this on the sleeve-like module 4a aligned support shoulder 6a on. The shoulder shoulder 6a is from the front wall 6 formed by the fact that the front wall 6 starting from the peripheral wall 5 rejuvenated. The taper is formed such that the inside of the peripheral wall 5 of the other module on the support shoulder 6a - at least partially - rests. For sealing between the two sleeve-like modules 4a . 4b provides a sealant 8th which orbital is applied. In the embodiment is doing as a sealant 8th an orbital weld, ie a circumferential weld, at the juncture between the two sleeve-like modules 4a . 4b intended. Alternatively, other joining techniques, such as bonding, possible.

How out 2 can be seen connects the sealant 8th the peripheral wall 5 of the sleeve-like module 4a in the area of the open front 7 with the end wall 6 or the adjacent thereto peripheral wall 5 of the second sleeve-like module 4b ,

The front wall 6 of the sleeve-like module 4b is as a partition 3 formed in the form of a baffle. For this purpose, the end wall 6 breakthroughs 9 on, which are punched out in the embodiment.

How out 1 and 2 is also apparent, is the open front side 7 of the second sleeve-like module 4b with an intermediate wall element 10 connected. The partition element 10 has an annular head part 11 on, on both sides of support shoulders 12 are formed. From one of the two support shoulders 12 the part designed as an intermediate wall (baffle wall or dividing wall), which extends through the interior of the fuel tank, branches off at a right-angled bend.

Alternatively, however, an embodiment is possible to the effect that of both support shoulders 12 the transversely extending through the interior part of the partition 3 emanates. It is also possible, this wall part of the headboard 11 to let go out. The partition element 10 is preferably formed in one piece and z. B. made of a deep-drawn part.

How out 1 and 2 can be seen are on both support shoulders 12 peripheral walls 5 of sleeve-like modules 4 postponed. In the exemplary embodiment, this is the circumferential wall 5 of the sleeve-like module 4b and the peripheral wall 5 of the sleeve-like module 4c , For a sealing of the fuel tank to the outside is on both sides of the head part 11 the sealant 8th , in the embodiment, the orbital welding, applied.

The partition element 10 is in the embodiment in terms of its the intermediate wall 3 forming wall part as a baffle with breakthroughs 9 educated.

As it turned out 1 and 2 results is the sleeve-like module 4c opposite to the sleeve-like modules 4a and 4b aligned so that the sleeve-like module 4c on the support shoulder 12 of the intermediate wall element 10 postpone and connect with this. The front wall 6 of the sleeve-like module 4c forms the second Behälterstirnwandung 2 ,

The container perimeter wall 1 of the fuel tank according to 1 and 2 has a substantially constant outer diameter. The sleeve-like modules 4a . 4b and 4c are above the support shoulders 6a respectively. 12 the end walls 6 or the intermediate wall element 10 connected such that the outer diameter of the container peripheral wall 1 remains substantially uniform. The headboard 11 of the intermediate wall element 10 is sized so that the outer peripheral wall of the head part 11 at least approximately flush with the outer peripheral walls of the peripheral walls 5 the sleeve-like modules 4a . 4b and 4c , The sleeve-like module 4c is with a functional element 13 , in the embodiment a filler neck, provided. In the exemplary embodiment it is provided that (insofar technically possible) all functional elements in a sleeve-like module 4c are arranged.

The fuel tank according to the in 1 and 2 illustrated embodiment is suitable for receiving a larger amount of fuel.

3 shows a fuel tank, which is substantially the in 1 and 2 corresponds to the illustrated fuel tank. The differences are that four sleeve-like modules 4a . 4b . 4b ' and 4c are provided. As well as according to 1 and 2 is in 3 an intermediate wall element 10 intended. The sleeve-like modules 4a . 4b and 4c are with the sleeve-like modules 4a . 4b and 4c according to the in 1 and 2 illustrated embodiment in terms of function, structure and connection to each other identical. The additional in 3 illustrated sleeve-like module 4b ' is so composed with the other modules that the end wall 6 of the sleeve-like module 4b ' an intermediate wall 3 forms. In principle, the sleeve-like module corresponds 4b ' in its function, training and arrangement of the sleeve-like module 4b with the difference that the front wall 6 of the sleeve-like module 4b ' no breakthroughs 9 having. The through this front wall 6 of the sleeve-like module 4b ' formed partition 3 thus represents a partition.

The fuel tank according to 3 thus has two separate container interior spaces 14 on. In this case, the smaller container interior 14a for example, to take up urea and the larger container interior 14b be formed for receiving a fuel. The sleeve-like module 4a can (unlike the sleeve-like module 4a according to the in 1 and 2 illustrated embodiment) additionally with functional elements 13 be provided (not shown).

4 shows an embodiment of the fuel tank, which differs from the in 1 and 2 illustrated embodiment characterized in that no intermediate wall element 10 is provided. The connection of the sleeve-like modules 4b and 4c takes place in that their peripheral walls 5 in the area of, open end faces 7 through the sealant 8th , For example, an orbital welding, are interconnected. The connection can in this case also in other ways, for example by welding a separate outer ring or the like, take place.

5 shows a further embodiment of a fuel tank, which differs from the in 4 illustrated embodiment characterized in that the sleeve-like module 4c in the area of the open front 7 a rejuvenation 15 (or a support shoulder). By the rejuvenation 15 can the peripheral wall 5 of the sleeve-like module 4c in the open front 7 of the adjacent sleeve-like module 4b be plugged in. The sleeve-like modules 4b and 4c thus overlap with their peripheral walls 5 at least partially. Unlike the in 4 illustrated embodiment allows the taper 15 at least partially a form or contour closure between the adjacent peripheral walls 5 the sleeve-like modules 4b . 4c , It also simplifies rejuvenation 15 through the resulting recess or groove between the adjacent parts of the sleeve-like modules 4b . 4c an introduction of the sealing agent 8th For example, an orbital welding.

6 shows an embodiment of the fuel tank, which differs from the in 1 and 2 illustrated embodiment characterized in that on an intermediate wall element 10 is omitted and the sleeve-like module 4c , which according to the in 1 and 2 illustrated embodiment, the second Behälterstirnwandung 2 has formed, by a final element 16 is replaced. The final element 16 forms the second Behälterstirnwandung 2 off and seals the open front 7 of the sleeve-like module 4b whose front wall 6 an intermediate wall 3 trains, off.

The final element 16 is on its outer circumference with one to the other Behälterstirnwandung 2 directed support shoulder 17 Mistake. The peripheral wall 5 of the adjacent sleeve-like module 4b is in the area of the open end 7 tight with the support shoulder 17 connected. In the exemplary embodiment, this is done via the sealing means 8th in the form of an orbital weld.

The partitions 3 According to the fuel tanks shown in the embodiment may be formed in principle both as stabilization walls, partitions or baffles. Depending on the configuration can be interconnected container interiors 14 or separate container interiors 14a . 14b form. In the exemplary embodiment it is provided that the sleeve-like modules 4 , the partition elements 10 and the final element 16 are joined together by welding. In this case, all known welding methods can be used. Alternatively, a compound of said elements has been found by gluing suitable, with all known bonding methods can be used.

In the exemplary embodiment it is provided that the said elements are formed from an aluminum alloy. However, other metals or plastics are also possible.

In case of need, said elements can still be a surface coating or finishing, z. B. by painting or anodizing or passivation.

In the usual way, the fuel tank also has vents and emptying openings (not shown).

The solution according to the invention is particularly suitable for large-volume fuel tanks with a capacity of more than 100 liters. Of course, however, the fuel tank according to the invention can also be used for smaller sizes.

Claims (21)

Fuel tank for commercial vehicles having a container peripheral wall, two Behälterstirnwandungen and at least one intermediate wall, wherein the fuel tank consists of at least three sleeve-like modules, which are each formed integrally and having a peripheral wall and an end wall, wherein the sleeve-like modules ( 4 ) are composed such that an end wall ( 6 ) of a sleeve-like module ( 4a ) a container end wall ( 2 ) and an end wall ( 6 ) of another module ( 4b ) an intermediate wall ( 3 ) and the peripheral wall ( 5 ) of the sleeve-like module ( 4 ) with its inner peripheral wall on a support shoulder ( 6a . 15 . 17 ) rests, wherein a sealing means ( 8th ) outside each between the ends of the peripheral walls ( 5 ) of the sleeve-like modules ( 4 ), characterized in that at least one intermediate wall element ( 10 ) provided with metal inserts comprising and / or overmoulded by a plastic having a high degree of fiber filling. Fuel tank according to claim 1, characterized in that a further sleeve-like module ( 4c ) provided in such a way with the other modules ( 4 ) which is the end wall ( 6 ) of the further module ( 4c ) the second container end wall ( 2 ). Fuel tank according to claim 1, characterized in that a closing element ( 16 ) is provided, which the second Behälterstirnwandung ( 2 ) and the open end face ( 7 ) one an intermediate wall ( 3 ) forming sleeve-like module ( 4b ) closes. Fuel tank according to claim 3, characterized in that as a second Behälterstirnwandung ( 2 ) graduated element ( 16 ) on its outer circumference with one to the other Behälterstirnwandung ( 2 ) directed shoulder ( 17 ), wherein the peripheral wall ( 5 ) of the adjacent sleeve-like module ( 4b ) with the support shoulder ( 17 ) is tightly connected. Fuel tank according to one of claims 1 to 4, characterized in that at least one further sleeve-like module ( 4b ' ) provided with the other modules ( 4 ) is composed such that the end walls ( 6 ) of the other modules ( 4b ' ) in each case an intermediate wall ( 3 ) form. Fuel tank according to one of claims 1 to 5, characterized in that the intermediate walls ( 3 ) are designed as partitions and / or stabilization walls and / or baffles. Fuel tank according to claim 6, characterized in that breakthroughs ( 9 ) or openings of the baffles are punched out. Fuel tank according to one of claims 1 to 7, characterized in that two adjacent sleeve-shaped modules ( 4 ) overlap at the junctions at least partially. Fuel tank according to claim 8, characterized in that the end wall ( 6 ) of a sleeve-like module ( 4 ) is designed such that it at least partially in the open end face ( 7 ) of an adjacent sleeve-like module ( 4 ) can be introduced. Fuel tank according to claim 9, characterized in that the end wall ( 6 ) at least in a partial area, which of the open end ( 7 ) of another module ( 4 ), has an outer diameter which is smaller than the inner diameter of the peripheral wall ( 5 ) in the region of the open end face ( 7 ) of the other module ( 4 ). Fuel tank according to claim 8, 9 or 10, characterized in that the end wall ( 6 ) of a sleeve-like module ( 4 ) with the open end face ( 7 ) of an adjacent module ( 4 ) is at least partially connected or prefixed by a form or contour closure. Fuel tank according to claim 11, characterized in that the positive connection is designed such that it supports a subsequent joining process. Fuel tank according to one of claims 1 to 12, characterized in that a sleeve-like module ( 4 ) with functional elements ( 13 ) is provided. Fuel tank according to claim 13, characterized in that the functional elements ( 13 ) are designed as a filter, filler neck, level sensor, water separator. Fuel tank according to one of claims 1 to 14, characterized in that an end wall ( 6 ) of a sleeve-like module ( 4 ) and the open end face ( 7 ) of another module ( 4 ), which are assembled together, have plug connection elements for producing a plug connection. Fuel tank according to one of claims 1 to 15, characterized in that the intermediate wall element ( 10 ), which between the open end faces ( 7 ) of two adjacent sleeve-like modules ( 4 ) is arranged, an at least approximately annular head part ( 11 ), on both of which to the Behälterstirnwandungen ( 2 ) directed sides support shoulders ( 12 ) are arranged, wherein the peripheral walls ( 5 ) of the adjacent sleeve-like modules ( 4 ) each tightly with one of the two support shoulders ( 12 ) are connected. Fuel tank according to claim 16, characterized in that the peripheral walls ( 5 ) of the sleeve-like modules ( 4 ) each with its inner peripheral wall on the support shoulder ( 12 ) rest. Fuel tank according to claim 16 or 17, characterized in that sealing means ( 8th ) outside each between the peripheral walls ( 5 ) of the sleeve-like modules ( 4 ) and the head part ( 11 ) of the intermediate wall element ( 10 ) are applied. Fuel tank according to claim 16, 17 or 18, characterized in that the Outer circumference of the annular head part ( 11 ) of the intermediate wall element ( 10 ) at least approximately flush with the outer peripheries of the peripheral walls ( 5 ) of the sleeve-like modules ( 4 ). Fuel tank according to claim 19, characterized in that the height of the support shoulders ( 12 ) to the top of the headboard ( 11 ) each at least approximately the thickness of the peripheral wall ( 5 ) of the sleeve-like modules ( 4 ) corresponds. Fuel tank according to one of claims 1 to 20, characterized in that the sleeve-like modules ( 4 ), the intermediate wall elements ( 10 ) and a conclusion element ( 16 ) are bonded together by gluing and / or welding.

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