Tank with baffle for a vehicle

Abstract

The invention relates to a tank 100 for a vehicle 1000, comprising a lower housing part 60, an upper housing part 50, and a baffle plate 10, wherein the lower housing part 60 and the upper housing part 50 are connected to each other and enclose an interior space 20, 30 of the tank 100, wherein the baffle plate 10 has a lower baffle collar 12 and an upper baffle collar 11, wherein the lower baffle collar 12 is arranged with a proximal end 11a on the lower housing part 60, wherein a distal end 12b of the lower baffle collar 12 projects into the interior space 20, 30, wherein the upper baffle collar 11 is arranged with a proximal end 11a on the upper housing part 50, wherein a distal end 11b of the upper baffle collar 11 projects into the interior space 20, 30, and wherein the baffle plate 10 divide the interior 20, 30 into a functional area 30 and an exterior area 20,and wherein the distal end 11b of the upper splash collar 11 has a smaller distance to the lower housing part 60 than the distal end 12b of the lower splash collar 12.

Description

[0001] The invention relates to a tank with a baffle for a vehicle and a method for producing a tank with a baffle for a vehicle. State of the art

[0002] Tanks in vehicles serve, among other things, to store and supply liquids. These liquids are required for chemical processes within the vehicle. In addition to the fuel tank, which contains the fuel for powering the engine, there are other tanks, such as the urea tank. The urea in the urea tank is required for exhaust gas aftertreatment. To transport the fluid from the tank, the fluid is extracted from the tank via a suction nozzle. For this to happen, the fluid must be in a liquid state at the suction nozzle.

[0003] If the temperature in the tank drops below the freezing point of the respective fluid, the fluid cannot be extracted. A heating element can heat the fluid above the freezing point and turn it into a liquid state. The vehicle can also be at an angle and the fluid can collect in the tank at a point other than the extraction nozzle. In a particularly unfavorable case, the vehicle can be at an angle and the fluid freezes. If the fluid is heated by the heating element, it runs away from the heated point and freezes again, but can then no longer be heated. In another scenario, the vehicle's high driving dynamics lead to a temporary shift of the fluid in the tank, away from the extraction nozzle. The heating element is usually arranged around the extraction nozzle and, together with the extraction nozzle, forms a functional area.

[0004] In the prior art, to prevent such migration of the fluid from the intake manifold, a baffle is arranged around the functional area of ​​the tank. The tank has an upper housing part and a lower housing part. Both housing parts are welded together. The baffle has a first baffle collar and a second baffle collar. Both baffles are arranged on a bottom of the lower housing part. Both baffles protrude from the bottom of the lower housing part only as far as a weld groove between the lower housing part and the upper housing part. Both baffles are spaced apart from each other and delimit an intermediate collar area. The first baffle collar has a first opening from the outer area to the intermediate collar area. The second baffle collar has a second opening from the intermediate collar area to the functional area.The first opening and the second opening are offset from each other to make it more difficult for the fluid on the functional area to flow out into the outside area.

[0005] This state-of-the-art technology presents the problem that, in dynamic driving situations, the fluid can spill over the first baffle and the second baffle from the functional area into the outer area. This interrupts the supply to the exhaust treatment system.

[0006] It is the object of the invention to prevent such an interruption of the supply to the exhaust gas treatment system in dynamic driving situations. Disclosure of the invention

[0007] The solution of the present invention reduces the amount of fluid that escapes from the functional area to the outside area in dynamic driving situations. This increases the reliability of the fluid supply in the tank even in dynamic driving situations and prevents interruptions in the supply to the exhaust gas treatment system in dynamic driving situations.

[0008] The tank for the vehicle has a lower housing part, an upper housing part, and a baffle. The lower housing part and the upper housing part are connected to each other and enclose an interior of the tank. The baffle has a lower surge collar and an upper surge collar. The lower surge collar is arranged with a proximal end on the lower housing part. A distal end of the lower surge collar protrudes into the interior. The upper surge collar is arranged with a proximal end on the upper housing part. A distal end of the upper surge collar protrudes into the interior. The baffle divides the interior into a functional area and an exterior area. The distal end of the upper surge collar is at a smaller distance from the lower housing part than the distal end of the lower surge collar.

[0009] The proximal end of the lower surge collar or upper surge collar can be welded, screwed, or integrally formed with the respective housing section. The distal end of the lower surge collar or upper surge collar protrudes from the respective housing section into the interior. The upper and lower housing sections, joined together, enclose the interior of the tank.

[0010] Because the distal end of the upper surge collar is closer to the lower housing section than the distal end of the lower surge collar, the upper surge collar and the lower surge collar overlap. If the fluid overflows the lower surge collar, the fluid encounters the upper surge collar and is prevented and slowed down in its overflow movement. A portion of the fluid overflowing the lower surge collar is reflected by the upper surge collar and enters the functional area via the lower surge collar. This reduces the amount of fluid overflowing from the functional area into the outside area via the baffle.

[0011] By designing the baffle as a lower and upper baffle, the amount of fluid that escapes from the functional area to the outer area during dynamic driving is reduced. Furthermore, this design allows for simple tank production.

[0012] The subclaims show preferred embodiments of the invention.

[0013] Preferably, the lower surge collar has a first vertical edge and a second vertical edge. The upper surge collar has a first vertical edge and a second vertical edge. The lower surge collar and the upper surge collar abut one another in an approximately fluid-tight manner along a sealing joint. The first vertical edge and the second vertical edge of the lower surge collar extend from the distal end to the proximal end of the lower surge collar. The second vertical edge of the lower surge collar is arranged in the functional region and is free. The first vertical edge and the second vertical edge of the lower surge collar are opposite one another with respect to the lower surge collar. The first vertical edge and the second vertical edge of the upper surge collar extend from the distal end to the proximal end of the upper surge collar.The second vertical edge of the upper surge collar is located in the functional area and is free-standing. The first vertical edge and the second vertical edge of the upper surge collar are opposite each other with respect to the upper surge collar. The sealing joint reduces the sealing joint distance to the lower housing part over its course from the first vertical edge to the second vertical edge of the lower surge collar.

[0014] The portion of the fluid that overflows the upper surge collar and flows down into the gap between the upper and lower surge collars lands on the sealing joint. The amount of fluid that overflows from the functional area into the outside area is further reduced. Because the sealing joint reduces its sealing joint spacing along the sealing joint's length from the first vertical edge to the second vertical edge of the lower surge collar to the lower housing section, a portion of the fluid that overflows into the gap is redirected back into the functional area.

[0015] Particularly preferably, the sealing joint is formed such that the distal end of the lower surge collar abuts a first flank of the upper surge collar at least in sections, in particular along an entire length of the distal end of the lower surge collar. Alternatively or additionally, the sealing joint is formed such that the distal end of the upper surge collar abuts a second flank of the lower surge collar at least in sections, in particular along an entire length of the distal end of the upper surge collar.

[0016] In this embodiment, the sealing joint is configured as a butt line between the distal end of the lower surge collar and the first flank of the upper surge collar and / or as a butt line between the distal end of the upper surge collar and the second flank of the lower surge collar. This embodiment allows for a simple design of the sealing joint without additional elements and is easy to manufacture. Furthermore, this design ensures fluidic sealing through the sealing joint, even during relative movement between the lower surge collar and the upper surge collar.

[0017] Advantageously, the lower surge collar and the upper surge collar are elastically prestressed relative to each other. Alternatively or additionally, the lower surge collar and / or the upper surge collar are inclined. By joining the upper housing section with the lower housing section, the lower surge collar and the upper surge collar are clamped relative to each other. The prestressing of the lower surge collar relative to the upper surge collar ensures the tightness of the sealing joint, even when the lower surge collar moves relative to the upper surge collar.

[0018] Particularly advantageously, a first distance between the distal end of the upper surge collar and the lower housing part is reduced along a path from the first vertical edge to the second vertical edge of the upper surge collar. Alternatively or additionally, a second distance between the distal end of the lower surge collar and the lower housing part is reduced along a path from the first vertical edge to the second vertical edge of the lower surge collar. This allows a simple design of a sealing joint which, over its path from the first vertical edge to the second vertical edge of the lower surge collar, reduces the sealing joint distance to the lower housing part.In particular, this embodiment simplifies the design of the previously described descending course of the sealing joint as a butt line of the distal end of the upper surge collar and the second flank of the lower surge collar and / or between the distal end of the lower surge collar and the first flank of the upper surge collar.

[0019] Preferably, the sealing joint is formed by a sealing element between the upper surge collar and the lower surge collar, such that the sealing element creates an at least approximately fluid-tight connection between the upper surge collar and the lower surge collar. The sealing element rests on the second flank of the upper surge collar and on the first flank of the lower surge collar. Alternatively or additionally, the sealing element is plugged onto the upper surge collar and rests on the second flank of the lower surge collar. Alternatively or additionally, the sealing element is plugged onto the lower surge collar and rests on the first flank of the upper surge collar. This arrangement of the sealing element according to this embodiment achieves a high level of tightness between the upper surge collar and the lower surge collar.In conjunction with the previous embodiment, placing the sealing element on the distal end of the upper surge collar directly leads to the sealing element descending towards the lower housing part from the first vertical edge to the second vertical edge of the upper surge collar towards the functional area.

[0020] Particularly preferably, the sealing element is designed as a rubber seal, in particular a foam rubber seal. The foam rubber seal is flexible and ensures a tight seal between the upper surge collar and the lower surge collar, even during relative movement of the upper surge collar to the lower surge collar.

[0021] Particularly preferably, the sealing element is formed as a closed-cell EPDM foam. The EPDM foam is flexible and ensures a tight seal between the upper and lower surge collars, even during relative movement of the upper and lower surge collars.

[0022] Advantageously, the lower surge collar is designed as a double collar with an additional distal end. The distal end and the further distal end are distinct from each other and spaced apart, forming a gap between the distal end and the further distal end. The upper surge collar extends into this gap between the distal end and the further distal end of the lower surge collar.

[0023] If a fluid from the functional area flows into the space between the upper surge collar and the lower surge collar, further flow of this fluid beyond the more distal end of the lower surge collar is prevented. The fluid does not escape from the functional area into the outside area. Furthermore, the design is simple to manufacture, as no additional sealing element needs to be attached, nor is pre-tensioning required between the upper surge collar and the lower surge collar to prevent the fluid from flowing from the functional area into the outside area. Furthermore, this design makes it easier to achieve the aforementioned property, as it is sufficient to insert the upper surge collar into the space between the lower surge collar.

[0024] Particularly advantageously, the lower surge collar has a further proximal end on the lower housing part. The lower surge collar has a third flank. The third flank extends from the further proximal end to the further distal end of the lower surge collar. Thus, the lower surge collar has a rectangular U-shape. This shape has no undercuts and is particularly easy to manufacture.

[0025] The double collar preferably has a Y-shaped cross-section. This design of the double collar allows the lower housing part and the upper housing part to be joined particularly easily, since the upper surge collar is guided into its final position by the left and right legs of the double collar. Furthermore, this design leads to a double deflection of the fluid. In order for the fluid to reach the outer area from the functional area, the fluid must first pass over the distal end of the lower surge collar. In doing so, the fluid hits the upper surge collar and at least a portion of the fluid sinks into the space between the distal end of the lower surge collar and the further distal end of the lower surge collar. In doing so, the fluid loses part of its initial momentum with which the fluid passed over the distal end of the lower surge collar.To reach the outer area from this intermediate space, the fluid must pass over the distal end of the lower surge collar. When the fluid passes from the functional area to the outer area, the fluid is redirected twice by the baffle.

[0026] The intersection of a web of the Y-shaped cross-section with the two legs of the Y-shaped cross-section is designed analogously to the sealing joint. This intersection reduces its distance from the lower housing section by running from the first vertical edge of the lower surge collar to the second edge of the lower surge collar. Fluid located between the legs of the lower surge collar thus flows into the functional area. This leads to a return of the overflowing fluid to the functional area.

[0027] The height of the ridge is the distance from the proximal end of the lower surge collar to the meeting line. The ridge height can be, in particular, half the total height of the lower surge collar.

[0028] One leg of the Y-shaped double collar extends from the web to the distal end of the lower surge collar and is the first flank of the lower surge collar. The other leg of the Y-shaped double collar extends from the web to the further distal end of the lower surge collar and is the third flank of the lower surge collar.

[0029] Particularly preferably, the upper surge collar and the upper housing part are made of the same material. The lower surge collar and the lower housing part are preferably made of the same material, in particular the same material as the upper surge collar and the upper housing part. This allows the lower housing part and the lower surge collar and / or the upper housing part and the upper surge collar to be designed as a single piece. In particular, the lower housing part and the lower surge collar and / or the upper housing part and the upper surge collar can be manufactured in one manufacturing step. Furthermore, manufacturing the lower housing part and the upper housing part from the same material facilitates welding of the lower housing part to the upper housing part. This facilitates manufacture of the tank.

[0030] Advantageously, a first flank distance, as the distance between the first flank and the second flank, is one-tenth, in particular one-twentieth, of the surge collar height of the upper surge collar. The surge collar height of the upper surge collar is a distance between the proximal end and the distal end of the upper surge collar. By setting a small first flank distance, the amount of fluid that can enter the space between the upper surge collar and the lower surge collar during a surge process is reduced.

[0031] Particularly advantageously, a second flank distance, as the distance between the first flank and the third flank, is one-fifth, in particular one-tenth, of the surge collar height of the lower surge collar. The surge collar height of the lower surge collar is a distance between the proximal end and the distal end of the lower surge collar. A small second flank distance makes it difficult for fluid to overflow from the space in the double collar between the distal end of the lower surge collar and the further distal end of the lower surge collar.

[0032] The invention further comprises a method for producing a tank for a vehicle according to one of the preceding embodiments. The method comprises three steps. In a first step, the lower housing part is provided with the lower surge collar, in particular with the sealing element on the lower surge collar. In a second step, the upper housing part is provided with the upper surge collar, in particular with the sealing element. In a third step, the lower housing part is joined to the upper housing part, thus creating a fluid-tight joint between the lower housing part and the upper housing part.

[0033] This method has the advantages that the upper housing part and the lower housing part can be easily joined together by the design of the baffle according to one of the previous embodiments and further comprises a baffle which reduces fluid flow from the functional area to the outside area.

[0034] Furthermore, the invention comprises a vehicle having a tank according to one of the previous embodiments.

[0035] The vehicle has the advantages of the tank according to one of the previous embodiments.

[0036] Further details, features, and advantages of the invention will become apparent from the following description and the figures. They show: Fig. 1 is a schematic representation of a vehicle according to a first embodiment of the invention, Fig. 2 a schematic representation of a tank according to the first embodiment, Fig. 3 a schematic representation of the tank according to a second embodiment, Fig. 4 a schematic representation of the tank according to a third embodiment, Fig. 5 a schematic representation of the tank according to a fourth embodiment, and Fig. 6 a method for producing the tank according to one of the previous embodiments.

[0037] Fig. Figure 1 shows a schematic representation of a vehicle 1000 according to a first exemplary embodiment of the invention. The tank 100 is, in particular, a urea tank and, in the first exemplary embodiment, is arranged partially under a rear seat bench and partially in an underbody of the vehicle 1000.

[0038] Fig. Figure 2 shows a schematic representation of the tank 100 according to the first embodiment. In the left illustration of the Fig. 2 shows a top view of the tank 100 without an upper housing part 50. The upper end of the tank 100 in the left illustration points toward the front of the vehicle 1000. The lower end of the tank 100 in the left illustration points toward the rear of the vehicle 1000. The tank 100 has an L-shaped floor plan. The neck of the L-shaped floor plan of the tank 100 extends parallel to an X-axis of the vehicle 1000. The X-axis is a longitudinal axis of the vehicle 1000. The foot of the L-shaped floor plan of the tank 100 extends parallel to a Y-axis of the vehicle 1000. The Y-axis of the vehicle 1000 is a transverse axis of the vehicle 1000. A Z-axis is a vertical axis of the vehicle 1000. In the left illustration, the upper part of the tank 100 is located under the vehicle floor and in the left illustration, the lower part of the tank 100 is located under the rear seat of the vehicle 1000. In the right illustration of the Fig. 2 shows a cross section of the tank 100 along the axis AA.

[0039] The tank 100 has a lower housing part 60, an upper housing part 50, and a baffle 10. The lower housing part 60 and the upper housing part 50 are connected to one another and enclose an interior space 20, 30 of the tank 100. The baffle 10 has a lower baffle collar 12 and an upper baffle collar 11. The lower baffle collar 12 is arranged with a proximal end 11a on the lower housing part 60. A distal end 12b of the lower baffle collar 12 protrudes into the interior space 20, 30. The upper baffle collar 11 is arranged with a proximal end 11a on the upper housing part 50. A distal end 11b of the upper surge collar 11 projects into the interior 20, 30. The baffle 10 divides the interior 20, 30 into a functional area 30 and an outer area 20. The distal end 11b of the upper surge collar 11 is at a smaller distance from the lower housing part 60 than the distal end 12b of the lower surge collar 12.The functional area 30 has a suction area 62.

[0040] By designing the baffle 10 as a lower surge collar 12 and an upper surge collar 11, the tank 1000 is easy to manufacture and the tank 100 is easy to assemble. Furthermore, this design ensures fluidic sealing through the sealing joint 13, even during relative movement between the lower surge collar 12 and the upper surge collar 11. Furthermore, this reduces tension and thus mechanical stress on the lower surge collar 12, the upper surge collar 11, the lower housing part 60, and the upper housing part 50.

[0041] The lower surge collar 12 has a first vertical edge 12c and a second vertical edge 12d. The upper surge collar 11 has a first vertical edge 11c and a second vertical edge 11d. The lower surge collar 12 and the upper surge collar 11 abut one another in an approximately fluid-tight manner along a sealing joint 13. The first vertical edge 12c and the second vertical edge 12d of the lower surge collar 12 extend from the distal end 12b to the proximal end 12a of the lower surge collar 12. The second vertical edge 12d of the lower surge collar 12 is arranged in the functional region 30 and is free. The first vertical edge 12c and a second vertical edge 12d of the lower surge collar 12 are opposite one another with respect to the lower surge collar 12.The first vertical edge 11c and the second vertical edge 11d of the upper surge collar 11 extend from the distal end 11b to the proximal end 11a of the upper surge collar 11. The second vertical edge 11d of the upper surge collar 11 is arranged in the functional area 30 and is free. The first vertical edge 11c and the second vertical edge 11d of the upper surge collar 11 are opposite one another with respect to the upper surge collar 11. The sealing joint 13 reduces a sealing joint distance 76 to the lower housing part 60 over its extension from the first vertical edge 12c to the second vertical edge 12d of the lower surge collar 12.

[0042] The sealing joint 13 is formed in that the distal end 11b of the upper surge collar 11 rests at least in sections, in particular along an entire length of the distal end 11b of the upper surge collar 11, against a first flank 12e of the lower surge collar 12.

[0043] The portion of the fluid that passes over the upper surge collar 11 into a space between the upper surge collar 11 and the lower surge collar 12 lands on the sealing joint 13. The amount of fluid that overflows from the functional area 30 into the outer area 20 is further reduced. Because the sealing joint 13 reduces its one sealing joint distance 76 over the course of the sealing joint 13 from the first vertical edge 12c to the second vertical edge 12d of the lower surge collar 12 to the lower housing part 60, at least a portion of the fluid that overflows into the space is returned to the functional area 30.

[0044] In this embodiment, the sealing joint 13 is designed as a butt line between the distal end 12b of the lower surge collar 12 and the second flank 11e of the upper surge collar 11. This embodiment allows a simple design of the sealing joint 13 without additional elements and is easy to manufacture.

[0045] The lower surge collar 12 and the upper surge collar 11 are elastically prestressed against each other. The prestressing of the lower surge collar 12 relative to the upper surge collar 11 ensures the tightness of the sealing joint 13 even when the lower surge collar 12 moves relative to the upper surge collar 11.

[0046] The upper surge collar 11 and the upper housing part 50 are made of the same material. The lower surge collar 12 and the lower housing part 60 are made of the same material as the upper surge collar 11 and the upper housing part 50. The lower housing part 60 and the lower surge collar 12, and the upper housing part 50 and the upper surge collar 11, are designed as a single piece. Furthermore, manufacturing the lower housing part 60 and the upper housing part 50 from the same material facilitates welding the lower housing part 60 to the upper housing part 50. This facilitates production of the tank 100.

[0047] The first vertical edge 11c of the upper surge collar 11 and the first vertical edge 12c of the lower surge collar 12 are arranged on the upper housing part 50 and on the lower housing part 60 and reduce fluid flow from the functional area 30 into the outer area 20.

[0048] To reduce fluid flow onto the first vertical edge 12c of the lower surge collar 12, the surge wall 10 is designed to be bulbous toward the outer region 20, so that a large portion of the fluid surge is directed into the bulbous shape and away from the first vertical edge 12c of the lower surge collar 12. This reduces the fluid from spilling from the functional area 30 into the outer region 20 between the first vertical edge 12c of the lower surge collar 12 and the first vertical edge 11c of the upper surge collar 11 and a wall 61 of the lower housing part 60.

[0049] Additionally, a ramp-shaped feed element can be arranged between the second vertical edge 12d of the lower surge collar 12 and the wall 61 of the lower housing part 60. A first side of the feed element is oriented toward the outer region 20, and a second side of the feed element is oriented toward the functional region 30. The second side is designed significantly steeper than the first side. This enables an inflow of fluid from the outer region 20 into the functional region 30 and simultaneously impedes a backflow from the functional region 30 into the outer region 20.

[0050] Fig. Figure 3 shows a schematic representation of the tank 100 according to a second embodiment. The second embodiment has similar features to the first embodiment.

[0051] Preferably, the sealing joint 13 is formed by a sealing element 14 between the upper surge collar 11 and the lower surge collar 12, so that an approximately fluid-tight connection is present between the upper surge collar 11 and the lower surge collar 12 by the sealing element 14.

[0052] The arrangement of the sealing element 14 according to this exemplary embodiment achieves a high degree of tightness between the upper surge collar 11 and the lower surge collar 12. In conjunction with the previous exemplary embodiment, attaching the sealing element 14 to the distal end 12b of the upper surge collar 11 directly leads to a downward slope of the sealing element 14 toward the lower housing part 60, from the first vertical edge 11c to the second vertical edge 11d of the upper surge collar 11.

[0053] Particularly advantageously, a first distance 70 between the distal end 11b of the upper surge collar 11 and the lower housing part 60 decreases along a path from the first vertical edge 11c to the second vertical edge 11d of the upper surge collar 11.

[0054] This allows for a simple design of a sealing joint 13, which, along its course from the first vertical edge 12c to the second vertical edge 12d of the lower surge collar 12, reduces the sealing joint distance 76 to the lower housing part 60. In particular, this embodiment simplifies the design of the previously described descending course of the sealing joint 13 as a butt line of the distal end 11b of the upper surge collar 11 on the first flank 12e of the lower surge collar 12.

[0055] The sealing element 14 is designed as a foam rubber seal and / or as a closed-cell EPDM foam, in particular. The foam rubber seal is flexible and ensures a tight seal between the upper surge collar 11 and the lower surge collar 12, even during relative movement of the upper surge collar 11 and the lower surge collar 12.

[0056] A first flank distance 72 between the first flank 12e and the second flank 11e is one tenth, in particular one twentieth, of a surge collar height 73 of the upper surge collar 11. By setting a small first flank distance 72, the amount of fluid that can enter the space between the upper surge collar 11 and the lower surge collar 12 in a surge process is reduced.

[0057] Fig. Figure 4 shows a schematic representation of the tank 100 according to a third embodiment. The third embodiment has similar features to the first and second embodiments.

[0058] The lower surge collar 12 is designed as a double collar with a further distal end 12g. The upper surge collar 11 projects into a space 15 between the distal end 12b and the further distal end 12g of the lower surge collar 12.

[0059] If a fluid from the functional area 30 passes into the space between the upper surge collar 11 and the lower surge collar 12, further passage of this fluid via the further distal end 12g of the lower surge collar 12 is prevented. The fluid does not pass from the functional area 30 into the outer area 20. Furthermore, the embodiment is simple to manufacture, since no additional sealing element 14 needs to be attached, nor is prestressing necessary between the upper surge collar 11 and the lower surge collar 12 to prevent the fluid from passing from the functional area 30 into the outer area 20. Furthermore, this embodiment makes it easier to achieve the aforementioned property, since it is sufficient to insert the upper surge collar 11 into the space between the lower surge collar 12.

[0060] The lower surge collar 12 has a further proximal end 12h on the lower housing part 60. The lower surge collar 12 has a third flank 12f. The third flank 12f extends from the further proximal end 12h to the further distal end 12g of the lower surge collar 12. Thus, the lower surge collar 12 has a rectangular U-shape. This shape has no undercuts and is particularly easy to manufacture.

[0061] A second flank distance 74 between the first flank 12e and the third flank 12f amounts to one-fifth, in particular one-tenth, of a surge collar height 75 of the lower surge collar 12. This allows for a simple design of a sealing joint 13, which, over its course from the first vertical edge 12c to the second vertical edge 12d of the lower surge collar 12, reduces the sealing joint distance 76 to the lower housing part 60. In particular, this exemplary embodiment simplifies the design of the previously described descending course of the sealing joint 13 as the butt line of the distal end 11b of the upper surge collar 11 on the first flank 12e of the lower surge collar 12.

[0062] Fig. Figure 5 shows a schematic representation of a tank 100 according to a fourth embodiment. The fourth embodiment has similar features to the first to third embodiments.

[0063] The double collar has a Y-shaped cross-section. This design of the double collar allows for particularly simple joining of the lower housing part 60 and the upper housing part 50, since the upper surge collar 11 is guided into its final position by the left and right legs of the double collar. The meeting line 12j of a web 12i of the Y-shaped cross-section with the two legs of the Y-shaped cross-section is designed analogously to the sealing joint 13 and reduces its distance from the lower housing part 60 over the course from the first vertical edge 12c of the lower surge collar 12 to the second vertical edge 12d of the lower surge collar 12. A fluid located between the legs of the lower surge collar 12 thus flows back into the functional area 30. This leads to a return of the overflowing fluid to the functional area 30.The web height 77 of the web 12i is the distance from the proximal end 12a of the lower surge collar 12. The web height 77 is half the surge collar height 75 of the lower surge collar 12.

[0064] One leg of the Y-shaped double collar extends from the web 12i to the distal end 12b of the lower surge collar 12 and is the first flank 12e of the lower surge collar 12. The other leg of the Y-shaped double collar extends from the web 12i to the distal end 12b of the lower surge collar 12 and forms the first flank 12e of the lower surge collar 12. The other leg of the Y-shaped double collar extends from the web 12i to the further distal end 12g of the lower surge collar 12 and is the third flank 12f of the lower surge collar 12.

[0065] Fig. 6 shows a method for manufacturing a tank 100 according to one of the previous embodiments.

[0066] The method 200 comprises three steps. In a first step 201, a lower housing part 60 with the lower surge collar 12, in particular with a sealing element 14 on the lower surge collar 12, is provided. In a second step 202, an upper housing part 50 with an upper surge collar 11, in particular with a sealing element 14, is provided. In a third step 203, the lower housing part 60 is joined to the upper housing part 50, so that a fluid-tight joint 40 is created between the lower housing part 60 and the upper housing part 50. This method has the advantage that the upper housing part 50 and the lower housing part 60 can be easily joined together by designing the baffle 10 according to one of the previous embodiments. Furthermore, the tank has a baffle 10, which reduces fluid flow from the functional area 30 into the outer area 20. List of reference symbols: 10 Baffle 11 upper surge collar 11a proximal end of the upper surge collar 11b distal end of the upper surge collar 11c first vertical edge of the upper surge collar 11d second vertical edge of the upper surge collar 11e second flank 12 lower surge collar 12a proximal end of the lower surge collar 12b distal end of the lower surge collar 12c first vertical edge of the lower surge collar 12d second vertical edge of the lower surge collar 12th first flank 12f third flank 12g further distal end of the lower surge collar 12h further proximal end of the lower surge collar 12i bridge 12j hitting line 13 Sealing joint 14 Sealing element 20 outdoor area 30 Functional area 40 joint 50 upper housing part 60 lower housing part 61 Wall of the lower housing part 62 Extraction area 70 first distance 71 second distance 72 first flank distance 73 Height of the upper surge collar 74 second flank distance 75 Height of the lower surge collar 76 Sealing joint spacing 77 bridge height 100 tanks 200 procedures 201-203 Procedural steps 1000 vehicles

Claims

[1] Tank (100) for a vehicle (1000), comprising - a lower housing part (60), - an upper housing part (50) and - a baffle (10), - wherein the lower housing part (60) and the upper housing part (50) are connected to each other and enclose an interior space (20, 30) of the tank (100), - wherein the baffle (10) has a lower baffle collar (12) and an upper baffle collar (11), - wherein the lower surge collar (12) is arranged with a proximal end (12a) on the lower housing part (60), - wherein a distal end (12b) of the lower surge collar (12) projects into the interior space (20, 30), - wherein the upper surge collar (11) is arranged with a proximal end (11a) on the upper housing part (50), - wherein a distal end (11b) of the upper surge collar (11) projects into the interior space (20, 30), and - wherein the baffle (10) divides the interior (20, 30) into a functional area (30) and an exterior area (20), and - wherein the distal end (11b) of the upper surge collar (11) has a smaller distance from the lower housing part (60) than the distal end (12b) of the lower surge collar (12). [2] Tank (100) according to claim 1 characterized by , that - the lower surge collar (12) has a first vertical edge (12c) and a second vertical edge (12d), - the upper surge collar (11) has a first vertical edge (11c) and a second vertical edge (11d), and - the lower surge collar (12) and the upper surge collar (11) lie approximately fluid-tight against each other along a sealing joint (13), - wherein the first vertical edge (12c) and the second vertical edge (12d) of the lower surge collar (12) extend from the distal end (12b) to the proximal end (12a) of the lower surge collar (12), - wherein the second vertical edge (12d) of the lower surge collar (12) is arranged in the functional area (30) and is free, - wherein the first vertical edge (12c) and a second vertical edge (12d) of the lower surge collar (12) are opposite each other with respect to the lower surge collar (12), - wherein the first vertical edge (11c) and the second vertical edge (11d) of the upper surge collar (11) extend from the distal end (11b) to the proximal end (11a) of the upper surge collar (11), - wherein the second vertical edge (11d) of the upper surge collar (11) is arranged in the functional area (30) and is free, - wherein the first vertical edge (11c) and the second vertical edge (11d) of the upper surge collar (11) are opposite each other with respect to the upper surge collar (11), and - wherein the sealing joint (13) reduces a sealing joint distance (76) to the lower housing part (60) over its course from the first vertical edge (12c) to the second vertical edge (12d) of the lower surge collar (12). [3] Tank (100) according to claim 2 characterized by , that - the sealing joint (13) is formed in that the distal end (12d) of the lower surge collar (12) rests at least in sections, in particular along an entire length of the distal end (12d) of the lower surge collar (12), against a first flank (11e) of the upper surge collar (11), and / or - the sealing joint (13) is formed in that the distal end (12b) of the upper surge collar (12) bears against a first flank (12e) of the lower surge collar (12) at least in sections, in particular along an entire length of the distal end (12b) of the upper surge collar (12). [4] Tank (100) according to claim 3 characterized by , that - the lower surge collar (12) and the upper surge collar (11) are prestressed against each other, in particular elastically, and / or - wherein the lower surge collar (12) and / or the upper surge collar (11) has or have an inclined position. [5] Tank (100) according to one of claims 2 to 4 characterized by , that - a first distance (70) between the distal end (11b) of the upper surge collar (11) and the lower housing part (60) decreases along a path from the first vertical edge (11c) to the second vertical edge (11d) of the upper surge collar (11), and / or - a second distance (71) between the distal end (12b) of the lower surge collar (12) and the lower housing part (60) decreases along a path from the first vertical edge (12c) to the second vertical edge (12d) of the lower surge collar (12). [6] Tank (100) according to one of claims 2 to 5 characterized by , that - the sealing joint (13) is formed by a sealing element (14) between the upper surge collar (11) and the lower surge collar (12), so that the sealing element (14) provides an approximately fluid-tight connection between the upper surge collar (11) and the lower surge collar (12), - wherein the sealing element (14) rests against a second flank (11e) of the upper surge collar (11) and against the first flank (12e) of the lower surge collar (12) and / or, - wherein the sealing element (14) is placed on the upper surge collar (11) and rests against the second flank (11e) of the lower surge collar (12), and / or - wherein the sealing element (14) is placed on the lower surge collar (12) and is arranged on the first flank (12e) of the upper surge collar (11). [7] Tank (100) according to claim 6 characterized by that the sealing element (14) is designed as a foam rubber seal and / or as, in particular, closed-cell EPDM foam. [8] Tank (100) according to one of the preceding claims characterized by , that - the lower surge collar (12) is designed as a double collar with a further distal end (12g), and - the upper surge collar (11) projects into a space (15) between the distal end (12b) and the further distal end (12g) of the lower surge collar (12). [9] Tank (100) according to claim 8 characterized by , that - the lower surge collar (12) has a further proximal end (12h) on the lower housing part (60), and - the lower surge collar (12) has a third flank (12f), - wherein the third flank (12f) extends from the further proximal end (12h) to the further distal end (12g) of the lower surge collar (12). [10] Tank (100) according to one of claims 8 or 9, characterized by that the double collar has a Y-shaped cross-section. [11] Tank (100) according to one of the preceding claims characterized by , that - the upper surge collar (11) and the upper housing part (50) are made of the same material, and - the lower surge collar (12) and the lower housing part (60) are made of the same material, in particular of the same material as the upper surge collar (11) and the upper housing part (50). [12] Tank (100) according to one of the preceding claims characterized by , that - a first flank distance (72) as a distance between the first flank (12e) and the second flank (11e) is one tenth, in particular one twentieth, of a surge collar height (73) of the upper surge collar (11), - wherein the surge collar height (73) of the upper surge collar (11) is a distance between the proximal end (11a) and the distal end (11b) of the upper surge collar (11). [13] Tank (100) according to one of claims 8 to 12 characterized by , that - a second flank distance (74) as a distance between the first flank (12e) and the third flank (12f) is one fifth, in particular one tenth, of a surge collar height (75) of the lower surge collar (12), - wherein the surge collar height (75) of the lower surge collar (12) is a distance between the proximal end (12a) and the distal end (12b) of the lower surge collar (12). [14] Method (200) for producing a tank (100) for a vehicle (1000) according to one of the preceding claims, comprising the steps: - Providing (201) the lower housing part (60) with the lower surge collar (12), in particular with a sealing element (14) on the lower surge collar (12), - Providing (202) an upper housing part (50) with an upper surge collar (11), in particular with a sealing element (14), and - Joining (203) the lower housing part (60) to the upper housing part (50) so that a fluid-tight joint (40) is created between the lower housing part (60) and the upper housing part (50). [15] Vehicle (1000) comprising a tank (100) according to one of claims 1 to 13.

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