Device for forming oil sump and oil sump assembly

Abstract

An apparatus for forming an oil sump and an oil sump assembly. The device comprises a sump lower side having a sump base and a circumferential side wall which is arranged on the sump base so as to form a fluid-tight cavity with the sump base, in which cavity a partition wall is provided which divides the cavity into a suction chamber forming a suction opening and an outflow chamber forming an outflow opening which allows oil to flow out in an outflow direction, a fluid opening is provided in the partition wall for the passage of oil from the suction chamber into the outflow chamber; a filter element and / or a strainer element are / is integrated in the outflow chamber for filtering the oil flowing therethrough; a supporting grid is arranged above the filter element and / or the filter screen element in the oil outflow direction, is fastened on the inner side of the side wall and is used for fixing the filter element and / or the filter screen element between the supporting grid and the bottom of the oil groove when the oil flows out; a fastening mechanism is arranged on the outer side of the side wall and used for fastening the lower side of the oil groove to a correspondingly designed wall part serving as the upper side of the oil groove, so that the oil groove is formed.

Description

Technical Field

[0001] The invention relates to a device for forming an oil sump, the device comprising an oil sump bottom, the oil sump bottom having an oil sump bottom and a surrounding side wall, the side wall being arranged on the oil sump bottom to form a fluid-tight cavity with the oil sump bottom, wherein a partition wall is provided in the cavity, the partition wall dividing the cavity into a suction chamber for forming a suction opening and an outflow chamber for forming an outflow opening, the outflow opening being used for oil to flow out in an outflow direction, wherein a fluid opening is provided in the partition wall, which is used for oil to flow from the suction chamber into the outflow chamber. The invention also relates to an oil sump assembly. Background Art

[0002] Due to the high loads and long service life requirements (50,000 h) in commercial vehicles, plastic oil pans are rarely used in the commercial vehicle sector. Typically, a separate aluminum oil pan is developed for each commercial vehicle transmission, which can then only be used for the respective product.

[0003] Due to the combination of high loads and high service life requirements, wear and dirt cannot be avoided in the drive assembly.

[0004] Therefore, specially designed suction filters and / or pressure filters are used in powershift automatic transmissions and other automatic transmissions in order to protect the sensitive valve hydraulics from dirt and ensure their functionality. These filters are then usually designed and optimized according to the respective product and the available installation space in the oil tank.

[0005] In some cases, the filter element is even integrated into the oil sump.

[0006] Such oil sumps are known in the prior art in various ways. In particular, the oil sumps are used as storage containers for the oil required for lubricating the drive unit. In particular, plastic oil sumps are used in the automotive sector, for example as oil sumps in motor vehicles.

[0007] DE 19914607 C2 discloses a plastic oil sump for vehicle engines and vehicle transmissions, in particular for automatic transmissions, comprising a sump bottom, a surrounding side wall, a surrounding bulge arranged on the inner side of the sump bottom, and means for absorbing external forces arranged at least on the outer side of the sump bottom.

[0008] DE 197 35 445 A1 discloses a plastic or metal oil sump for an engine or a transmission or an automatic transmission, which has an integrated suction and / or pressure oil filtration function, wherein an oil filter is arranged in the oil sump.

[0009] DE 102008053279 A1 discloses a metal oil sump for an engine or a transmission, which has an oil filter medium arranged in the oil sump, wherein a part of the oil sump forms the bottom of an oil filter housing, and a plastic half shell forms a cover of the oil filter housing, and the oil filter medium is arranged between the oil sump and the plastic half shell, wherein the oil sump has metal rivets on its edge and the plastic half shell has holes on its edge, via which the plastic half shell is fastened to the metal oil sump. Summary of the invention

[0010] It is therefore an object of the present invention to specify an improved device for forming an oil sump and an oil sump assembly.

[0011] This object is achieved by a device having the features of claim 1 and an oil sump assembly having the features of claim 12 .

[0012] Further advantageous measures are listed in the dependent claims, which can be combined with one another as appropriate in order to achieve further advantages.

[0013] The object is achieved by a device for forming an oil sump, the device comprising an oil sump underside, the oil sump underside having an oil sump bottom and a surrounding side wall, the side wall being arranged on the oil sump bottom in order to form a fluid-tight cavity with the oil sump bottom, wherein a partition wall is provided in the cavity, the partition wall dividing the cavity into a suction chamber for forming a suction opening and an outflow chamber for forming an outflow opening for the oil to flow out in an outflow direction, wherein a fluid opening is provided in the partition wall for the oil to flow from the suction chamber into the outflow chamber, Therein, a filter element and / or a screen element is provided, which is integrated in the outflow chamber for filtering the oil flowing through the outflow chamber, and wherein A support grid is provided, which is arranged above the filter element and / or the screen element in the outflow direction of the oil, wherein the support grid is fastened to the inner side of the side wall to fix the filter element and / or the screen element between the support grid and the bottom of the oil tank when the oil flows out in the outflow direction, And wherein, a fastening mechanism is arranged on the outer side of the side wall, and the fastening mechanism is used to fasten the lower side of the oil groove to the wall portion which is designed accordingly and serves as the upper side of the oil groove, so as to form the oil groove.

[0014] In particular, the filter element and / or the screen element has a length and a width such that it completely covers the outflow chamber.

[0015] In particular, the fluid opening in the partition wall is also arranged below the filter element and / or the screen element, so that the oil from the suction chamber flows below the filter element and / or the screen element and flows from there through the filter element and / or the screen element. During outflow, the filter element and / or the screen element is arranged on the support grid due to the flow, so that the fluid opening can be easily arranged below the filter element and / or the screen element to ensure the oil flow during operation. It is also possible to design the support grid so that the flow direction can be rotated or two flow directions can be realized.

[0016] The partition wall can assume any desired shape, for example also as a rectangle or as an oblique wall for forming a triangular suction chamber.

[0017] In this case, the support grid can be designed as a single-layer stainless steel grid.

[0018] In particular, the wall is a wall of a housing which is connected to an oil discharge line (suction channel) in order to convey the oil to the required components / parts by means of an oil pump.

[0019] In particular, in traction machines, electrically operated oil pumps are used to protect against extreme temperatures. The pump has the function of lubricating and cooling the traction machine and the bearings and gearings when electrically driven. However, other functions are also conceivable.

[0020] Unlike the oil pumps used in commercial vehicles to date, this oil pump is not driven by the traction machine (with an almost infinite torque), but by a relatively small electric motor. According to the invention, it has been recognized that the pump can thus provide a volume flow for cooling and lubrication completely independently of the rest of the system. The pump can thus also "run idle". This allows a very high degree of flexibility and provides the possibility of "on-demand" volume flow regulation. In principle, such an electric oil pump can be used in any application, i.e. also in conventional transmissions or other uses. A suction filter is always required to protect the pump.

[0021] With the invention, not only reliable operation can now be achieved but also pump stalls (malfunctions) can be prevented in a very small installation space by filtering out dirt particles or retaining all dirt particles larger than a certain size.

[0022] By designing the device according to the invention as an open oil trough, the device can be kept as thin as possible (in terms of height) so that it does not need to be built up unnecessarily "downwards (towards the roadway)". In operation, the device can represent the lowest point, which is advantageous for suction.

[0023] According to the invention, the "oil sump upper shell" is provided by a corresponding mating housing (wall) equipped with the oil sump. In this way, it is possible to use the device with filter element / screen element as an oil sump in very different vehicles.

[0024] The device according to the invention automatically takes into account the orientation of attached components such as oil pumps and heat exchangers, which always have to take into account the function and the available installation space in the vehicle. The device according to the invention thus makes it possible to arrange the oil pump universally on any vehicle without having to pay special attention to the orientation.

[0025] By using the housing as the oil sump top and fixing the filter element and / or the screen element via the support grid, no support domes or tabs or the like are required. Thus, the delivery to the suction channel of the oil pump can be carried out completely flexibly in the area of ​​the support grid.

[0026] Furthermore, this embodiment also makes it possible to design the oil groove as thin as possible over its height.

[0027] Furthermore, a flexible installation on any vehicle is possible. Thus, the device for forming the oil sump can even be mounted "upside down" or vertically.

[0028] The suction opening defines the point at which suction is carried out in the entire unit. By means of the device according to the invention, this point can now be placed in the middle of the volume in a simplified manner, thereby ensuring that there is always enough oil.

[0029] In most cases, the volumetric intermediate reference oil pool is located in the lower center of the unit. By integrating the suction opening into the oil sump, the oil sump additionally assumes the "path" from the suction point to the suction channel of the oil pump. The oil sump thus acts as a hydraulic channel. Due to the design according to the invention, the oil sump as an open oil sump bottom side (wherein the matching housing forms the oil sump top side) can be rotated as desired here, so as to achieve an optimal path from the suction point (suction opening) to the suction channel of the pump. This is particularly advantageous for electric drives equipped with a traction machine, because a simple channel guidance from the suction point (suction opening) to the suction channel (outflow opening) of the electric oil pump is achieved.

[0030] Since the oil sump underside is attached externally to the respective unit, the filter element or the oil sump underside can be replaced during the service life of the vehicle. All dirt is thus automatically removed from the oil system at all times.

[0031] Furthermore, the oil sump underside can even be unscrewed in order to clean the filter element / screen element by changing the flow direction so that all dirt is flushed out of the filter element / screen element through the suction opening. This makes it even possible to reuse the filter element / screen element. However, it is also possible to replace the filter element / screen element with a finer grid or mesh in case of high demands.

[0032] The use of a support grid allows uniform fixing of the filter element and / or the filter screen element. The uniform support by means of the support grid results in the mesh of the filter element and / or the filter screen element being less subject to point loads. By eliminating housing domes for fixing the filter element and / or the filter screen element, these can also be prevented from having a negative effect on the flow.

[0033] In particular, the device according to the invention is distinguished by simpler production, since, for example, no complex casting of the housing dome is necessary.

[0034] Furthermore, this design of the device makes it possible for the oil sump to be used as a channel through the suction chamber and the outflow chamber, which channel has a low height and in which the oil is filtered.

[0035] In a further embodiment, the support grid is fastened to the inner side of the side wall, thereby enabling a simple fastening.

[0036] In particular, the support grid is welded to the inner side of the side wall.

[0037] In particular, a circumferential welding can be achieved, so that the support grid and thus the filter element and / or the screen element can be fixed even at high suction pressures.

[0038] In another embodiment, the filter element and / or the screen element completely covers the outflow chamber, so that the oil flows completely through the filter element and / or the screen element when flowing out. This means that the length and width of the filter element and / or the screen element are matched to the length and width of the outflow chamber. This allows a larger filter area to be created.

[0039] The flow direction from the intake opening in the oil sump to the transfer point on the wall of the housing of the respective unit, combined with a relatively large filter surface, ensures that a low back pressure occurs.

[0040] This flow direction also ensures that all particles which are larger than a specified mesh width of the filter element and / or the screen element are always filtered out by the filter element and / or the screen element.

[0041] In a further embodiment, the fastening means has a retaining element protruding in the axial direction on the outer side of the side wall and a bushing which is introduced into the retaining element in the vertical direction, so that the oil groove bottom side can be fixed to the wall in combination with the bushing by means of the fastening element. This means that a coated metal bushing can be inserted / encapsulated into the retaining element, which ensures easier fastening to the respective unit and ensures compression of the inserted molded seal during service life and use.

[0042] In particular, the fastening means can be formed by a protruding retaining element and a bushing.

[0043] The bushing makes it possible to make a simple screw connection possible without subjecting the oil groove to pressure loads.

[0044] In particular, the retaining element and the oil sump bottom, the side walls and the partition wall can be formed in one piece, for example as an injection-molded component, thereby enabling simple production.

[0045] In another embodiment, the side wall and the partition wall have grooves and seals in the direction of the wall, which are arranged in the grooves in a sealing manner. Thus, the oil groove bottom is arranged in a sealing manner on the wall, which represents the oil groove top side.

[0046] In another embodiment, honeycomb-shaped reinforcements are arranged on the outside of the oil sump. This allows the oil sump to be used in all directions of travel without it being damaged, for example, by stones hitting it. Thus, the oil sump is arranged behind the axle in the direction of travel in buses and in front of the axle in the direction of travel in trucks. This also makes it possible to arrange the oil sump "transversely" to the direction of travel.

[0047] In another embodiment, the support grid can be designed as a single-layer stainless steel grid. The oil tank can be removed and the filter element and / or the filter screen can be easily disassembled if necessary, or in the case of welded components, the flow direction can be changed so that all dirt can be flushed out of the filter element and / or the filter screen via the suction opening. This makes it possible to reuse the filter and / or the filter screen element. However, it is also possible to replace the filter element / filter screen element with a finer mesh in the case of high requirements.

[0048] In another embodiment, the support grid is injection molded around the filter element on both sides. Thus, support grids are arranged on both sides, so that filtering can be carried out in two directions. In particular, a simple reversal of the flow direction is thus possible.

[0049] This is an advantage when cleaning the filter element. Alternatively, corresponding supporting ribs can be provided in the oil sump base body, ie in the outflow chamber (which is in this case the suction chamber).

[0050] The object is also achieved by an oil sump assembly for forming an oil sump, in particular in an apparatus according to one of the above-described embodiments, the oil sump assembly comprising an oil sump underside, the oil sump underside having an oil sump bottom and a surrounding side wall, the side wall being arranged on the oil sump bottom in order to form a fluid-tight cavity with the oil sump bottom, wherein a partition wall is provided in the cavity, the partition wall dividing the cavity into a suction chamber for forming a suction opening and an outflow chamber for forming an outflow opening for the oil to flow out in an outflow direction, wherein a fluid opening is provided in the partition wall for the oil to flow from the suction chamber into the outflow chamber, and wherein A filter element and / or a screen element is provided, which is integrated in the outflow chamber for filtering the oil flowing through the outflow chamber, and a support grid is provided, which is arranged above the filter element and / or the screen element in the outflow direction of the oil, wherein the support grid is fastened to the inner side of the side wall for fixing the filter element and / or the screen element between the support grid and the bottom of the oil tank when the oil flows out in the outflow direction, and A fastening mechanism is provided on the outer side of the side wall, a wall of the housing is provided as an oil trough upper side, the oil trough lower side is fastened to the wall by means of the fastening mechanism to form the oil trough, and the wall is fluidically connected to the oil drain line.

[0051] In particular, this means, in terms of fluid, that the wall is connected to an oil discharge line (suction channel) in order to convey the oil to the required components.

[0052] The advantages and designs of the device can be transferred to the oil sump assembly.

[0053] In addition, in another design scheme, the fastening mechanism has a retaining element protruding in the axial direction on the outer side of the side wall, and has a bushing, which is introduced into the retaining element in the vertical direction, and has a fastening element, which passes through the bushing, and wherein a corresponding accommodating opening is provided on the wall of the housing, and wherein the fastening element is fastened in the accommodating opening to form an oil groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Further features and advantages of the present invention are apparent from the following description with reference to the accompanying drawings.

[0055] Figure 1 : shows a device according to a first design solution of the present invention;

[0056] Figure 2 : shows a device according to a second design solution of the present invention;

[0057] Figure 3 : shows a device according to a third design solution of the present invention;

[0058] Figure 4 : Indicates the outside of the oil tank bottom. DETAILED DESCRIPTION

[0059] Figure 1 The device 1 for an oil sump according to the invention is shown from above.

[0060] The device has an oil tank underside 2. The oil tank underside 2 has an oil tank bottom 3 ( Figure 4 ) and a surrounding side wall 4, which is arranged at the bottom of the oil tank 3 ( Figure 4 ) to the bottom of the oil tank 3 ( Figure 4 ) forms a fluid-tight cavity.

[0061] Furthermore, a partition wall 5 is provided which divides the cavity into a suction chamber 6 for forming a suction opening. The oil is sucked in or flows in from there. The suction opening defines the point in the entire unit at which suction takes place. If possible, this point should be located in the middle in terms of volume in order to ensure that there is always enough oil and that no air is sucked in.

[0062] Depending on the design of the partition wall 5, the suction chamber 6 may be triangular, square or circular ( Figure 2 In principle, the suction chamber 6 is constructed as a platform component. However, it can also be of any shape if the matching housing requires it.

[0063] In most cases, the volumetric intermediate reference oil sump is located in the lower center of the unit (e.g., drive motor with electric oil pump, transmission component, etc.). In the case of an electric drive, a traction machine is installed, which makes it relatively difficult to achieve a channel guide from the suction point (suction opening) to the suction channel (outflow chamber 8) of the electric oil pump. By integrating the suction opening into the oil sump bottom side 2, the oil sump bottom side assumes the "path" from the suction point to the suction channel of the oil pump. The oil sump bottom side 2 can be rotated as desired in this case, so as to achieve an optimal path from the suction point to the suction channel of the pump.

[0064] Furthermore, the partition wall 5 divides the cavity into an outflow chamber 8 for allowing the oil to flow out in an outflow direction.

[0065] In the partition wall 5 a fluid opening 9 is provided for the oil to flow from the suction chamber 6 into the outflow chamber 8 , which fluid opening is arranged in particular towards / on the oil sump bottom 3 or forms a passage with the latter.

[0066] Furthermore, a filter element 10 is provided, which is integrated in the outflow chamber 8, for filtering the oil which flows from the suction chamber 6 through the fluid opening 9 into the outflow chamber 8 and flows through the outflow chamber 8. The filter element 10 preferably covers the entire area (length, width) of the outflow chamber 8, thereby obtaining a larger filter area. The fluid opening 9 is preferably introduced into the partition wall 5 in such a way that the oil flows under the filter element 10 during operation.

[0067] The flow direction from the suction opening of the suction chamber 6 in the oil sump underside 2 to the delivery point in the housing of the respective unit, combined with the relatively large filter surface, ensures that a low back pressure occurs.

[0068] This flow direction also ensures that all particles larger than a specified mesh width of the filter element 10 are always filtered out by the filter element 10. In this configuration, the particles will remain in the space between the filter element 10 and the outflow space 8 or the oil sump bottom.

[0069] In addition, a support grid 11 is provided, which is arranged to be aligned with the oil tank bottom 3 ( Figure 4 ), that is, arranged above the filter element 10 in the outflow direction of the oil. The support grid 11 is fastened to the inner side of the side wall 4 to fix the filter element 10 between the support grid 11 and the oil tank bottom 3 when the oil flows out in the outflow direction.

[0070] In this case, the support grid 11 can be welded circumferentially to the side wall 4. Adhesive or screw connections are also possible.

[0071] The support grid 11 is designed here for the maximum occurring suction negative pressure.

[0072] The support grid 11 can be designed, for example, as a single-layer stainless steel grid or as a woven mesh filter element.

[0073] The welding ensures that, when suction pressure is applied, the filter element 10 is not pulled into the suction channel, but remains between the support grid 11 and the oil sump bottom 3 .

[0074] With the flow direction reversed, the support grid 11 can be injection-molded on both sides around the filter element 10. Alternatively, corresponding support ribs can be provided in the oil sump base, ie in the outflow chamber 8 (which in this case is the suction chamber).

[0075] Furthermore, a retaining element 12 is arranged on the outer side of the side wall 4 and protrudes in the axial direction A. The retaining element 12 can be designed as a collar, for example.

[0076] A coated metal bushing 13 for inserting a screw is formed / encapsulated in the retaining element 12 in the vertical direction V. This ensures that the insert molded seal is fastened to the respective unit during service life and use.

[0077] The coated metal bushing 13 makes it possible to make a simple screw connection possible without subjecting the oil channel to pressure loads.

[0078] In particular, the retaining element 12 and the oil sump bottom 2 , the side walls 4 and the partition wall 5 can be formed in one piece, for example as an injection-molded component. This allows simple production.

[0079] Here, the axial direction A and the vertical direction V are perpendicular to each other.

[0080] The entire oil sump bottom 2 together with the filter element 10 and the support grid 11 are screwed to a wall (not shown) of a unit (such as an engine) via screws (not shown). Here, the wall is connected to the corresponding oil discharge line (suction channel).

[0081] For the purpose of sealing between the oil sump bottom 2 and the wall, the side wall 4 and the partition wall 5 have grooves. A seal 14 is introduced into the groove. After the oil sump bottom 2 is screwed to the wall of the housing of the unit by means of a coated metal bushing 13 in a retaining element 12, the seal creates a seal so that the filtered oil cannot escape.

[0082] The screw connection forms an oil sump, the top side of which is now formed by the housing itself of the respective unit.

[0083] This means that the oil sump upper shell is provided by a corresponding mating housing equipped with the oil sump lower side 2. In this way, it is possible to use the oil sump with the filter element 10 in very different vehicles. The device 1 according to the invention automatically takes into account the orientation of attached components such as oil pumps and heat exchangers, which always have to take into account the function and the available installation space in the vehicle. The device according to the invention thus makes it possible to arrange the oil pump universally on any vehicle; no special attention needs to be paid to the orientation.

[0084] Since the oil tank upper shell is formed by the housing, no supporting dome or tab is needed for supporting in the supporting housing. Therefore, the delivery to the suction channel of the oil pump can be implemented completely flexibly in the region of the supporting grid 11 and the filter element 10.

[0085] The oil sump can be designed as a separate oil sump bottom side 2 by means of an open embodiment and can be kept as thin (in terms of height) as possible due to the housing forming the oil sump top side, so that it does not need to be built unnecessarily "downwards (in the direction of the roadway)". The oil sump can thus represent the lowest point of the vehicle, which is advantageous for pumping out the oil.

[0086] The filter element 10 is supported by means of a support grid 11 and therefore does not require support domes or the like on the wall of the housing of the unit. Thus, it is even possible to mount the oil sump "upside down" or vertically, if the presence of oil at the suction opening is ensured by the line / pipeline guidance in the respective unit.

[0087] The oil sump is formed by attaching the oil sump bottom 2 from the outside to the respective unit so that the filter element 10 can be replaced during the service life of the vehicle. In addition, all dirt is always automatically removed from the oil system.

[0088] Furthermore, the oil sump underside 2 can even be unscrewed in order to clean the filter 10 by changing the flow direction so that all dirt is flushed out of the filter element 10 through the suction opening 6. This makes it possible to even reuse the filter element 10. However, it is also possible to replace the filter element 10 with a finer mesh in case of high demands.

[0089] The mesh of the filter element 10 is less subject to point loads due to the uniform support by means of the support grid 11. By omitting housing domes for fixing the filter element 10, it is also possible to prevent these housing domes from having a negative influence on the flow.

[0090] In particular, the oil sump underside 2 according to the invention is distinguished by simpler production, since, for example, no complex casting of the housing dome is necessary.

[0091] Such an oil sump can be used via the suction chamber 6 and the outflow chamber 8 as a channel which has a lower height and in which the oil is filtered.

[0092] The flow direction from the intake opening in the oil sump to the transfer point on the wall of the housing of the respective unit, combined with a relatively large filter surface, ensures that a low back pressure occurs.

[0093] The flow direction also ensures that all particles which are larger than a specified mesh width of the filter element 10 are always filtered out by the filter element 10 .

[0094] Figure 2 A further embodiment of the device 1 a according to the invention is shown, in which the partition wall 5 is designed to be circular in order to form a circular suction chamber 6 . Furthermore, two fluid openings 9 are provided in the partition wall 5 .

[0095] Figure 3 A further embodiment of the device 1b according to the invention is shown, in which the oil sump underside 2 is elliptical and the partition wall 5 is cuboid in order to form a cuboid suction chamber 6. Other geometrical embodiments and the formation of two suction chambers etc. are also possible.

[0096] Figure 4 The outer side of the oil sump bottom 3 is shown, ie the outer side as seen in the direction of the road.

[0097] The outer surface of the oil sump bottom 3 has honeycomb-shaped ribs, some of which are shown by way of example as honeycomb-shaped ribs 7a, 7b, 7c, 7d. This makes it possible to use the oil sump bottom 2 in all directions of travel without the oil sump bottom 3 being damaged by stone impacts. Thus, for example, the oil sump is arranged behind the axle in the direction of travel in buses and in front of the axle in the direction of travel in trucks. This also makes it possible to arrange the oil sump "transversely" to the direction of travel.

[0098] Reference numerals list

[0099] 1.1a,1b Equipment

[0100] 2 Oil tank bottom

[0101] 3 Oil tank bottom

[0102] 4 Sidewall

[0103] 5. Partition wall

[0104] 6 Suction chamber

[0105] 7a~7d Reinforced part

[0106] 8 Outflow cavity

[0107] 9 Fluid opening

[0108] 10 Filter element

[0109] 11 Support grille

[0110] 12. Retaining element

[0111] 13 Bushing

[0112] 14 Seals

Claims

1. A device (1, 1a, 1b) for forming an oil sump, the device (1, 1a, 1b) comprising an oil sump underside (2), the oil sump underside having an oil sump bottom (3) and a surrounding side wall (4), the side wall being arranged on the oil sump bottom (3) to form a fluid-tight cavity with the oil sump bottom (3), wherein: A partition wall (5) is provided in the cavity, the partition wall dividing the cavity into a suction chamber (6) for forming a suction opening and an outflow chamber (8) for forming an outflow opening, the outflow opening being used to allow oil to flow out in an outflow direction, wherein a fluid opening (9) is provided in the partition wall (5), the fluid opening being used to allow oil to flow from the suction chamber (6) into the outflow chamber (8), It is characterized in that A filter element (10) and / or a filter element is provided, the filter element and / or the filter element being integrated in the outflow chamber (8) for filtering the oil flowing through the outflow chamber (8), and a support grid (11) is provided, the support grid being arranged above the filter element (10) and / or the filter element in the outflow direction of the oil, The support grid (11) is fastened to the inner side of the side wall (4) to fix the filter element (10) and / or the filter element between the support grid (11) and the oil tank bottom (3) when the oil flows out in the outflow direction. And wherein a fastening mechanism is provided on the outer side of the side wall (4), and the fastening mechanism is used to fasten the lower side (2) of the oil groove to a wall portion of a corresponding design serving as the upper side of the oil groove, so as to form the oil groove.

2. The device (1, 1a, 1b) according to claim 1, characterized in that The support grid (11) is fastened to the inner side of the side wall (4) in a form-locking manner.

3. The device (1, 1a, 1b) according to claim 2, characterized in that The support grid (11) is welded to the inner side of the side wall (4).

4. The device (1, 1a, 1b) according to any one of the preceding claims, It is characterized in that The filter element (10) and / or the screen element fully covers the outflow chamber (8), so that the oil completely flows through the filter element (10) and / or the screen element when flowing out.

5. The device (1, 1a, 1b) according to any one of the preceding claims, characterized in that On the outer side of the side wall (4), the fastening device has a retaining element (12) protruding in the axial direction (A), and a bushing (13), which is introduced into the retaining element (12) in the vertical direction (V), so that the lower side (2) of the oil groove can be fixed to the wall by means of the fastening element in combination with the bushing (13).

6. The device (1, 1a, 1b) according to claim 5, characterized in that The retaining element (12) is formed integrally with the oil sump underside (2), the side wall (4) and the partition wall (5).

7. The device (1, 1a, 1b) according to claim 6, characterized in that The retaining element (12) and the oil sump bottom side (2), the side wall (4) and the partition wall (5) are cast from plastic.

8. The device (1, 1a, 1b) according to any one of the preceding claims, characterized in that The side wall (4) and the partition wall (5) both have a groove in the direction of the wall portion, as well as a seal (14), which is arranged in the groove in a sealing manner.

9. The device (1, 1a, 1b) according to any one of the preceding claims, characterized in that Honeycomb-shaped ribs (7a, 7b, 7c, 7d) are arranged on the outer side of the oil tank bottom (3).

10. The device (1, 1a, 1b) according to any one of the preceding claims, characterized in that The support grid (11) is constructed as a single-layer stainless steel grid.

11. The device (1, 1a, 1b) according to any one of the preceding claims, characterized in that The support grid (11) is injection molded around the filter element (10) on both sides.

12. An oil trough assembly for forming an oil trough, the oil trough assembly comprising an oil trough underside (2), the oil trough underside having an oil trough bottom (3) and a surrounding side wall (4), the side wall being arranged on the oil trough bottom (3) to form a fluid-tight cavity with the oil trough bottom (3), wherein: A partition wall (5) is provided in the cavity, the partition wall dividing the cavity into a suction chamber (6) for forming a suction opening and an outflow chamber (8) for forming an outflow opening, the outflow opening being used to allow oil to flow out in an outflow direction, wherein a fluid opening (9) is provided in the partition wall (5), the fluid opening being used to allow oil to flow from the suction chamber (6) into the outflow chamber (8), It is characterized in that A filter element (10) and / or a filter element is provided, the filter element and / or the filter element being integrated in the outflow chamber (8) for filtering the oil flowing through the outflow chamber (8), and a support grid (11) is provided, the support grid being arranged above the filter element (10) and / or the filter element in the outflow direction of the oil, and The support grid (11) is fastened to the inner side of the side wall (4) to fix the filter element (10) and / or the filter element between the support grid (11) and the oil tank bottom (3) when the oil flows out in the outflow direction, and A fastening mechanism is provided on the outer side of the side wall (4), and a wall portion of the housing is provided as an upper side of the oil groove, the lower side of the oil groove (2) is fastened to the wall portion by means of the fastening mechanism to form the oil groove, and the wall portion is fluidically connected to an oil drain line.

13. The oil tank assembly according to claim 12, characterized in that On the outer side of the side wall (4), the fastening mechanism has a retaining element (12) protruding in the axial direction (A), and a bushing (13), which is introduced into the retaining element (12) in the vertical direction (V), and a fastening element, which passes through the bushing (13), and wherein a corresponding receiving opening is provided on the wall of the housing, and wherein the fastening element is fastened in the receiving opening to form the oil groove.

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