Oil pan for an internal combustion engine of a motor vehicle as well as motor vehicle

Abstract

The invention relates to an oil pan (10) for an internal combustion engine, comprising two separately formed and interconnected pan parts, each defining a portion of a receiving space for oil, namely an upper pan part (20) and a lower pan part (22), which, in the installed position of the oil pan (10), is arranged vertically below the upper pan part (20). The pan parts (20, 22) are fastened to one another in a mounting position by means of first retaining elements (24) provided on a first pan part (20, 22) and second retaining elements (26) provided on a second pan part (20, 22). Each first retaining element (24) is associated with one of the second retaining elements (26), whereby the respective first retaining element (24) and the respective second retaining element (26) associated with the respective first retaining element (24) form a respective retaining element pair (28).The respective retaining elements (24, 26) of the respective retaining element pair (28) are supported against each other on opposite sides (S1, S2) of the retaining elements (24, 26) of the respective retaining element pair (28), whereby the tub parts (20, 22) are attached to each other in the assembly position.

Description

[0001] The invention relates to an oil pan for an internal combustion engine of a motor vehicle, in particular a motor car, according to the preamble of claim 1. Furthermore, the invention relates to a motor vehicle with an internal combustion engine which has such an oil pan.

[0002] Two-part oil pans for an internal combustion engine are known from DE 10 2019 127 874 A1 and DE 10 2017 222 037 A1.

[0003] DE 10 2012 017 356 A1 discloses an oil pan for an internal combustion engine of a motor vehicle, comprising two separately designed and interconnected pan parts, each defining a portion of a receiving space in the oil pan intended for receiving oil, namely an upper pan part and a lower pan part. In the installed position of the oil pan, the lower pan part is arranged in the vertical direction of the vehicle below the upper pan part, and the pan parts are fastened to one another in a mounting position by means of first retaining elements provided on a first pan part and second retaining elements provided on a second pan part. Each first retaining element is associated with one of the second retaining elements, thus forming a retaining element pair.The respective retaining elements of each retaining element pair are supported against each other on the opposing sides of the retaining elements of the respective retaining element pair, whereby the tub parts are fastened to each other in the assembly position.

[0004] The object of the present invention is to provide an oil pan for an internal combustion engine of a motor vehicle and a motor vehicle with such an oil pan, so that a particularly simple assembly of the oil pan can be achieved.

[0005] This problem is solved by an oil pan with the features of claim 1, and by a motor vehicle with the features of claim 10. Advantageous embodiments with expedient further developments of the invention are specified in the remaining claims.

[0006] A first aspect of the invention relates to an oil pan for an internal combustion engine, also referred to as an internal combustion engine or simply engine, of a motor vehicle, also referred to simply as a vehicle. This means that the motor vehicle, preferably designed as a motor vehicle, in particular as a passenger car, in its fully manufactured state, comprises the internal combustion engine, which includes the oil pan. The oil pan has, in particular, at least or exactly, two separately designed and interconnected pan parts, namely an upper pan part, also referred to simply as the upper part, and a lower pan part, also referred to simply as the lower part. The oil pan has a receiving chamber in which oil for lubricating and / or cooling the internal combustion engine can be received, at least temporarily.In this case, each part of the recording space is bounded by the respective part of the bathtub, in particular directly. In other words, a first part of the recording space is bounded, in particular directly, by the upper part of the bathtub, and a second part of the recording space is bounded, in particular directly, by the lower part of the bathtub.For example, the first part of the receiving space in the installed position of the oil pan, which assumes its installed position in the fully manufactured state of the motor vehicle containing the internal combustion engine and thus the oil pan, is surrounded and thus bounded by the upper part of the pan in the circumferential direction of the receiving space extending around the vehicle's vertical direction, in particular completely circumferentially, so that the first part of the receiving space is bounded, for example, in a plane extending perpendicular to the vehicle's vertical direction and thus in the longitudinal direction of the vehicle to the front and rear and in the transverse direction of the vehicle on both sides by the lower part of the pan.Furthermore, the receiving space, for example, in the installed position of the oil pan in the vehicle's vertical direction, is at least partially, in particular at least predominantly and thus at least more than halfway or completely, limited downwards by the lower part of the pan, in particular directly, so that, for example, the lower part of the pan has or forms a bottom of the oil pan. In this respect, the receiving space, in the installed position of the oil pan in the vehicle's vertical direction, is limited downwards at least partially, in particular at least predominantly or completely, by the bottom, in particular directly.

[0007] When the oil pan is installed, the lower part of the pan is positioned below the upper part, in the vehicle's vertical direction. In other words, when the oil pan is installed, the lower part connects to the upper part at the bottom. Conversely, when the oil pan is installed, the upper part is positioned above the lower part, so that it connects to the lower part at the top.

[0008] Since the oil pan has at least two or exactly two pan parts, it is a multi-part, and in particular a two-part, design. To form the oil pan, during assembly, the separately manufactured and initially detached pan parts are joined together, i.e., mounted together, for example, by attaching one pan part to the other. It is particularly conceivable that one pan part is moved relative to the other, especially while the other pan part remains stationary.

[0009] First retaining elements are provided on one of the oil pan sections, and second retaining elements are provided on a second oil pan section. The oil pan sections are fastened together in an assembly position by means of the first retaining elements and the second retaining elements. This means, in particular, that the first retaining elements interact with the second retaining elements, thereby securing the oil pan sections together and placing them in the assembly position. Specifically, the oil pan sections assume the assembly position when the motor vehicle, which contains the internal combustion engine and thus the oil pan, is fully assembled. The assembly position is also referred to as the final assembly position.

[0010] Each first retaining element is assigned a corresponding second retaining element, thus forming a retaining element pair. The retaining elements of each pair have opposing sides and are supported against each other, particularly directly, on these opposing sides, thereby securing the tub sections together in the assembly position.

[0011] In order to make it particularly easy and therefore particularly time- and cost-effective to assemble the pan parts together, i.e., to fasten them together, it is provided according to the invention that at least one of the respective retaining elements of the respective retaining element pair has a respective surface, also simply referred to as a surface or guide surface, on its respective side facing the other retaining element of the respective retaining element pair, which runs in a plane which extends obliquely to the vehicle device in the installed position of the oil pan, in particular in a respective viewing plane which runs parallel to the vehicle's vertical direction in the installed position of the oil pan and coincides with the vehicle's vertical direction.Since the respective surface of each retaining element of the respective retaining element pair runs in the aforementioned plane, and since this plane extends obliquely to the vehicle's vertical direction when the oil pan is installed, one retaining element can be moved onto the other by sliding, particularly directly, on the respective surface of the other retaining element of the respective retaining element pair. This sliding occurs when one pan part is mounted onto the other pan part and in a specific mounting direction, allowing the pan parts to be moved relative to each other into the mounting position. It is specifically designed that the mounting direction, when the oil pan is installed, is perpendicular to the vehicle's mounting position and, for example, runs in a plane that, when the oil pan is installed, is perpendicular to the vehicle's vertical direction.

[0012] A method for assembling the oil pan is also disclosed. In this method, one pan part is mounted to the other pan part by bringing the respective other retaining element of the respective retaining element pair into, in particular, direct, support, i.e., into, in particular, direct, contact with the respective surface of the respective retaining element of the respective retaining element pair, i.e., moving it and in particular then moving it along the respective surface of the respective retaining element of the respective retaining element pair and thus relative to the respective surface of the respective retaining element of the respective retaining element pair in the assembly direction, so that the respective other retaining element of the respective retaining element pair is directly supported by the respective surface of the respective retaining element of the respective retaining element pair.Since the surface of each individual retaining element of each retaining element pair extends in the described plane, the sliding of the other retaining element along the surface of the first retaining element of the pair moves one tub section towards the other, i.e., towards the other tub section, thus moving the tub sections relative to each other into the mounting position. The surfaces of the individual retaining elements of each retaining element pair guide the other retaining elements of the pair, guiding one tub section relative to the other and thus enabling simple, time-saving, and cost-effective mounting and fastening to the other tub section. This significantly simplifies the mounting of one tub section to the other compared to conventional solutions.

[0013] The invention is based in particular on the following findings and considerations: Typically, the oil pan parts are screwed together by far more than 10 screws and thus fastened to one another. If necessary, the oil pan parts are also additionally bonded together with silicone and thus sealed. Consequently, the assembly of the oil pan is very complex and therefore very time-consuming and expensive, with the screws, which are usually captive, being particularly costly. During repairs or maintenance, disassembly of the oil pan, which involves, for example, separating and removing a lower pan part from an upper pan part, is very time-consuming and expensive, especially if the dried and thus hardened silicone has to be removed. The aforementioned problems and disadvantages can be avoided by the invention.In particular, the invention enables one-handed assembly of one tub section to the other tub section, since one tub section is guided simply and precisely relative to the other tub section, especially by the fact that the other retaining elements of the retaining element pairs slide on the surfaces of the first retaining elements of the retaining element pairs and are thereby guided. Furthermore, the invention eliminates the need to screw the tub sections together with ten or more screws, thus, for example, eliminating the need for a screwdriver.

[0014] To facilitate the installation of the oil pan, one embodiment of the invention provides that each retaining element of the respective retaining element pair is wedge-shaped in a plane parallel to the vehicle's vertical direction, particularly on its outer circumference. This allows the other retaining elements to be advantageously guided by means of the respective surfaces of the retaining elements of the retaining element pairs, enabling one pan section to be mounted and thus secured to the other pan section quickly and cost-effectively.

[0015] Another embodiment is characterized in that the respective retaining element of each retaining element pair is the respective first retaining element, and that the first pan part is the pan upper part. At least preferably, the described surfaces are provided on the pan upper part, which makes the oil pan particularly easy to assemble and therefore particularly quick and cost-effective.

[0016] It has proven particularly advantageous if the side of the first retaining element of the respective retaining element pair facing the second retaining element of the respective retaining element pair points upwards in the vehicle's vertical direction when the oil pan is installed. This allows, for example, one pan part, preferably the lower pan part, to be mounted particularly easily to the other pan part, which is, for example, the upper pan part, by first hooking the respective other retaining elements onto the respective retaining element and thus onto the other pan part, or by other means pre-fixing them.Subsequently, the other retaining elements can be moved along the surfaces of the first retaining element in the assembly direction, so that they slide directly onto the surfaces of the first retaining element. This allows the pan parts to be guided easily and precisely relative to each other, especially into the assembly position. This makes the oil pan particularly easy to install.

[0017] In a further, particularly advantageous embodiment of the invention, a recess is provided on the surface of each retaining element of the respective retaining element pair in the assembly direction, into which the respective other retaining element engages. This causes the respective retaining element of the respective retaining element pair and the respective other retaining element of the respective retaining element pair to interact in a form-fitting manner, whereby, for example, the respective retaining element of the respective retaining element pair and the respective other retaining element of the respective retaining element pair are interlocked. This allows one tub section to be fixed and thus secured to the other tub section particularly easily and firmly.

[0018] Another embodiment is characterized by the fact that the pan parts are not sealed against each other using a hardening or cured liquid sealant such as silicone. This allows the oil pan to be installed and removed particularly easily, thus saving time and money.

[0019] To make the oil pan particularly easy to install, a further embodiment of the invention provides that the pan components are sealed to each other, in particular exclusively, by means of an elastomeric seal. Especially when disassembling the oil pan, the elastomeric seal does not need to be removed, or at least not with significantly less effort compared to a hardened or hardening liquid seal such as silicone, thus enabling the oil pan to be installed and removed quickly and cost-effectively.

[0020] Finally, it has proven particularly advantageous if the pan sections are interlocked and thus secured to one another by means of locking elements provided on the pan sections, in addition to the retaining elements, and spaced apart from the retaining elements. This allows the oil pan to be assembled particularly quickly and cost-effectively.

[0021] To enable particularly simple assembly of the oil pan, a further embodiment of the invention provides that one of the pan parts, in particular the upper pan part, is made of a metallic material and the other pan part, in particular the lower pan part, is made of a plastic. The metallic material is, for example, a light metal, in particular a light metal alloy. Specifically, this would be a metallic material, for example, aluminum, or an aluminum alloy.

[0022] Particularly when the bathtub base is made of plastic, advantageous noise characteristics can be achieved. Furthermore, the weight of the bathtub base can be kept low, allowing for easy assembly of the base onto the bathtub top.

[0023] Compared to conventional solutions, the invention enables faster assembly of the oil pan, particularly in an engine plant. Compared to conventional solutions, costly captive bolts on the oil pan can be avoided, or significantly less expensive captive bolts can be used to connect the pan components. The invention also provides a simpler method for inspecting or cleaning the lower part of the pan, for example, during an oil change. This allows for advantageous detection of oil sludge or a beneficial visual analysis of components that, with the lower part of the pan removed, can be seen from below, particularly in the vertical direction of the vehicle.These components could be, for example, a crankshaft, connecting rods, or pistons, particularly their undersides, of an internal combustion engine. Such an analysis would only be performed in the event of damage to a clogged oil pan. A second aspect of the invention relates to a motor vehicle, also simply referred to as a vehicle, which has an internal combustion engine by means of which the motor vehicle can be propelled. The internal combustion engine, and thus the motor vehicle, has an oil pan according to the first aspect of the invention. Advantages and advantageous embodiments of the first aspect of the invention are to be regarded as advantages and advantageous embodiments of the second aspect of the invention, and vice versa.

[0024] Further advantages, features, and details of the invention will become apparent from the following description of a preferred embodiment and from the drawing. The features and combinations of features mentioned above in the description, as well as those mentioned below in the figure description and / or shown in the figures alone, can be used not only in the combinations specified, but also in other combinations or individually, without departing from the scope of the invention. The drawing shows: Fig. 1 a schematic and cutaway side view of a first embodiment of an oil pan for an internal combustion engine of a motor vehicle; Fig. 2 a schematic top view of the oil pan according to the first embodiment; Fig. 3. Partially a schematic and cutaway side view of the oil pan according to the first embodiment in a method for mounting the oil pan; and Fig. 4. Partially a schematic and cut side view of the oil pan according to a second embodiment of the method for mounting the oil pan.

[0025] In the figures, identical or functionally equivalent elements are provided with the same reference symbols.

[0026] Fig. Figure 1 shows a schematic and cutaway side view of a first embodiment of an oil pan 10 for an internal combustion engine of a simple motor vehicle, also referred to as a vehicle, the vehicle's vertical direction being in Fig. 1 is illustrated by a double arrow 12. The motor vehicle, whose transverse direction is illustrated, for example, by a double arrow 14, is preferably designed as a motor car, in particular as a passenger car. The motor vehicle, whose longitudinal direction is illustrated by a double arrow 16 and is perpendicular to the plane of the image, is illustrated by a double arrow 12. Fig. The vehicle, which in its fully assembled state comprises the internal combustion engine and is capable of being driven by the internal combustion engine, has an oil pan 10. The internal combustion engine includes the oil pan 10, so the vehicle has the oil pan 10. The vehicle has, for example, an oil circuit through which oil flows, in which the oil pan 10 is located. The oil can be used to cool and / or lubricate the internal combustion engine. The oil pan 10 has a receiving chamber 18 in which the oil can be received, at least temporarily, particularly by forming a sump, also referred to as an oil sump.

[0027] The oil pan 10 has two separately formed and interconnected pan parts, namely an upper pan part 20, also simply referred to as the upper part, and a lower pan part 22, also simply referred to as the lower part, which in Fig. 1 and Fig. 2 is illustrated by dashed lines. Fig. Figure 2 shows the lower part of the tub 22 offset from the upper part of the tub 20 to align the tub parts. Fig. 2. It is apparent that the receiving space 18 is partially bounded by the upper pan part 20 and partially by the lower pan part 22, in particular directly, such that a first part of the receiving space 18 is bounded by the upper pan part 20 and a second part of the receiving space 18 by the lower pan part 22, in particular directly in each case. The lower pan part 22 has an oil drain plug 23. It is also apparent that the lower pan part 22, in the installed position of the oil pan 10, which has its in Fig. 1 and Fig. The installation position shown in Figure 2, in the fully manufactured state, is that of the internal combustion engine and thus the oil pan 10 of the motor vehicle, located in the vehicle's vertical direction below the upper part of the pan 20. When the vehicle's vertical direction, transverse direction, and longitudinal direction are mentioned previously and in the present text, these directions are always to be understood in relation to the installation position of the oil pan 10, and thus always in relation to the installation position of the oil pan 10.

[0028] The following will be based on Fig. 1 to 4 describe a method for mounting the oil pan 10, wherein in the method the pan lower part 22 is mounted and thus fastened to the pan upper part 20, thereby connecting the pan parts to each other, i.e., attaching them to each other.

[0029] To enable particularly simple, time-saving, and cost-effective assembly of the oil pan 10, first retaining elements 24 are provided on the upper pan part 20. For example, the upper pan part 20 has the first retaining elements 24. Second retaining elements 26 are provided on the lower pan part 22, with the lower pan part 22 having the second retaining elements 26. In the embodiment shown in the figure, the second retaining elements 26 are each hook-shaped. As will be explained in more detail below, the pan parts are held together by the retaining elements 24 and 26 in a Fig. 1 and Fig. 2. Mounting positions shown: held together and fastened to each other.

[0030] Each first retaining element 24 is assigned, in particular, one of the second retaining elements 26, whereby each first retaining element 24 and each second retaining element 26 assigned to each first retaining element form a respective retaining element pair 28.

[0031] Especially good in combination with Fig. Figure 3 shows that the respective retaining elements 24 and 26 of the respective retaining element pair 28 have sides S1 and S2 facing each other in the assembly position, with side S1 being the side of the respective retaining element 24 of the respective retaining element pair 28 facing the respective retaining element 26 of the respective retaining element pair 28. Accordingly, the respective side S2 is the side of the respective retaining element 26 of the respective retaining element pair 28 facing the respective retaining element 24 of the respective retaining element pair 28. The respective sides S1 and S2 of the respective retaining elements 24 and 26 of the respective retaining element pair 28 face each other in the aforementioned assembly position of the tub parts. Fig. 3. A position of the tub parts that differs from the assembly position, for example, the tub parts that are in Fig. The three positions shown are assumed relative to each other shortly before the lower tub section 22 is mounted on the upper tub section 20 and shortly before the tub sections are moved into the assembly position relative to each other. In the assembly position, the respective retaining elements 24 and 26 of the respective retaining element pair 28 are supported against each other, in particular directly, on the opposing sides S1 and S2 of the respective retaining elements 24 and 26 of the respective retaining element pair 28, whereby the tub sections are fastened to each other, i.e., connected to each other, in the assembly position. Fig. 1 is the mounting position according to the exemplary embodiment shown Fig. 3 to recognize.

[0032] Looks especially good Fig. It can be seen that each retaining element 24 of each retaining element pair has a surface F on its respective side S1 facing the respective retaining element 26 of the respective retaining element pair 28, which runs in a plane that extends obliquely to the vehicle's vertical direction when the oil pan 10 is installed. It follows that, by sliding the respective retaining element 26 of the respective retaining element pair 28 along the respective surface F of the respective retaining element 24 of the respective retaining element pair 28 in an assembly direction illustrated by an arrow 30, and this sliding occurs during the assembly of the lower pan part 22 onto the upper pan part 20, and thus during the assembly of the oil pan 10, the lower pan part 22 can be moved towards the upper pan part 20, or is moved towards it, thereby allowing the pan parts to be moved into the assembly position relative to each other.In other words, in this process, the retaining elements 26 are brought into, in particular directly, a support position with the surfaces F of the retaining elements 24, and the retaining elements 26 are moved into the assembly position relative to the retaining elements 24 as illustrated by arrow 30, so that the retaining elements 26 slide directly on the surfaces F. Since the surfaces F, or in particular the plane common to the surfaces F in which the surfaces F extend, run obliquely to the vehicle's vertical direction, the fact that the retaining elements 26 slide directly on the surfaces F moves the lower tub section 22 towards the upper tub section 20 and thus, for example, upwards in the vehicle's vertical direction. This guides the lower tub section 22 relative to the upper tub section 20 simply and precisely, in particular until the tub sections reach the assembly position.

[0033] It is conceivable that, for example, the upper part of the tub 20 could have a handle 32, designed, for example, as a click-type handle, particularly on or at its narrow side ( Fig. 1) has, for example, a corresponding area of ​​the tub base 22 that is or will be locked into place in order to fasten the tub parts together in the assembly position.

[0034] In the first embodiment, the tub parts are screwed together by means of exactly two screws 34 and are thereby attached to each other and fixed in the assembly position relative to each other.

[0035] For example, along a connection direction that runs perpendicular to the mounting direction and, for example, perpendicular to the vehicle's vertical direction, and preferably straight, ribs are attached to the respective surface F on both sides. These ribs project from the respective surface F, particularly upwards, and thus extend beyond it. These ribs are lateral guides that, especially when the respective retaining element 26 slides on the respective surface F, guide the respective retaining element 26. This prevents or at least limits relative movements between the respective retaining elements 24 and 26 of the respective retaining element pair 28 along the connection direction. This makes mounting the oil pan 10 particularly easy.

[0036] For example, in the vehicle's vertical direction, at least one or exactly one seal, which is specifically designed separately from the tank parts and is distinct from a cured or curing liquid seal, is arranged between the tank sections. This seal is also referred to as a sealing element. The seal is, for example, designed as an elastomer seal and thus made of an elastomer. The tank parts are mutually sealed by means of the seal. For example, in the vehicle's vertical direction, the seal rests, in particular directly, against the upper tank section 20 and, in particular, directly against the lower tank section 22. In particular, the seal extends completely around the receiving space 18 and the oil pan 10 in the circumferential direction surrounding the vehicle's vertical direction, thus covering 360° around the receiving space 18, thereby providing a particularly advantageous seal.Since the plane or the respective surface F runs at an angle to the vehicle's vertical direction, the pan parts are moved towards each other during the assembly of the oil pan 10, and the circumferential seal is advantageously pressed between the pan parts.

[0037] It can be seen that the handle 32 is arranged on or at a first narrow side, in particular of the upper part of the pan 20. The screws 34 are arranged on or at a second narrow side of the upper part of the pan 20, with the narrow sides facing each other, particularly along the assembly direction. By means of the retaining element pairs 28, sufficient, i.e., sufficiently high, pressure can be achieved between the respective pan part and the seal, so that sufficient oil tightness can be ensured. By means of the handle and the screw 34, the upper part of the pan 20 and the lower part of the pan 22 can be fixed particularly securely against each other in the assembly position.

[0038] Alternatively or in addition to the handle 32 and the screws 34, a particularly direct locking mechanism for the respective retaining elements 24, 26 of the respective retaining element pair 28 can be provided. This is the case, for example, in a Fig. 4 second embodiment shown. Fig. Figure 4 shows the bathtub parts in a position different from their final assembly position, and thus shortly before they are moved into the assembly position. This is evident from... Fig.4. In the assembly direction, a recess 36 of each retaining element 24 of each retaining element pair 28 adjoins the respective surface F of each retaining element 24 of each retaining element pair 28. The respective retaining element 26 engages with a corresponding counterpart 38 of each retaining element pair 28 in the respective recess 36 of each retaining element 24 of each retaining element pair 28, causing the respective retaining elements 24 and 26 of each retaining element pair 28 to interact positively and, for example, to be locked together. Since, for example, the respective retaining element 26 engages in the respective recess 36, a locking connection is created. This allows, for example, a permanent connection or a connection that can only be released with a special tool between the respective retaining elements 24 and 26 of each retaining element pair 28 to be created.For example, all locking mechanisms between the retaining elements 24, 26 of the retaining element pair 28 can be released simultaneously using the aforementioned special tool. Reference symbol list 10 Oil pan 12 Double Arrow 14 Double Arrow 16 Double Arrow 18 Recording room 20 bathtub tops 22 Bathtub base 23 Oil drain plug 24 first retaining element 26 second retaining element 28 pairs of retaining elements 30 Arrow 32 handle 34 screw 36 Exclusion 38 counterpart F surface S1 page S2 page

Claims

[1] Oil pan (10) for an internal combustion engine of a motor vehicle, comprising two separately designed and interconnected pan parts, each defining a portion of a receiving space in the oil pan (10) intended for receiving oil, namely an upper pan part (20) and a lower pan part (22), which, in the installed position of the oil pan (10), is arranged in the vehicle's vertical direction below the upper pan part (20), and the pan parts (20, 22) are fastened to one another in an assembly position by means of first retaining elements (24) provided on a first pan part (20, 22) and second retaining elements (26) provided on a second pan part (20, 22), and each first retaining element (24) is associated with a respective second retaining element (26), whereby the respective first retaining element (24) and the respective,The second retaining element (26) assigned to the respective first retaining element (24) form a respective retaining element pair (28) and the respective retaining elements (24, 26) of the respective retaining element pair (28) are supported against each other on their opposing sides (S1, S2) of the retaining elements (24, 26) of the respective retaining element pair (28), whereby the tub parts (20, 22) are fastened to each other in the assembly position. characterized by, that at least one of the respective retaining elements (24, 26) of the respective retaining element pair (28) has on its respective side (S1, S2) facing the respective other retaining element (26, 24) of the respective retaining element pair (28) a respective surface (F) extending in a plane that extends obliquely to the vehicle's vertical direction in the installation position of the oil pan (10), such that when one of the pan parts (20, 22) is mounted on the other pan part (20, 22) and in a mounting direction, the respective other retaining element (26) of the respective retaining element pair (28) slides on the respective surface (F) of the respective retaining element (24) of the respective retaining element pair (28), the one pan part (20, 22) can be moved towards the other pan part (20, 22), thereby allowing the pan parts to be moved into the mounting position relative to each other. [2] Oil pan (10) according to claim 1, characterized by, that the respective retaining element (24) of the respective retaining element pair (28) is wedge-shaped when viewed in a plane of observation running parallel to the vehicle's vertical direction in the installation position of the oil pan (10). [3] Oil pan (10) according to claim 1 or 2 characterized by , that the respective holding element of the respective holding element pair (28) is the respective first holding element (24) and the first tub part is the tub top part (20). [4] Oil pan (10) according to claim 3, characterized by , that the respective side (S1) of the respective first retaining element (24) facing the respective second retaining element (26) points upwards in the vehicle vertical direction in the installation position of the oil pan (10). [5] Oil pan (10) according to any of the preceding claims, characterized by, that in the assembly direction a respective recess (36) is connected to the respective surface (F) of the respective holding element (24) of the respective holding element pair (28), into which the respective other holding element (26) of the respective holding element pair (28) engages. [6] Oil pan (10) according to any of the preceding claims, characterized by , that the tub parts (20, 22) are screwed together by means of exactly one screw (34) or by means of exactly two screws (34) and are fixed in the assembly position relative to each other. [7] Oil pan (10) according to any of the preceding claims, characterized by , that mutual sealing of the tub parts (20, 22) by means of a hardening or cured liquid sealant does not occur. [8] Oil pan (10) according to any of the preceding claims, characterized by , that the tub parts (20, 22) are mutually sealed by means of an elastomer seal. [9] Oil pan (10) according to any of the preceding claims, characterized by , that the tub parts (20, 22) are locked together by means of locking elements provided on the tub parts (20, 22), in addition to the retaining elements (24, 26) and spaced apart from the retaining elements (24, 26). [10] Motor vehicle, with the internal combustion engine which has an oil pan (10) according to one of the preceding claims.

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