Cylinder head for an internal combustion engine and internal combustion engine with such a cylinder head

Abstract

Cylinder head (10) for an internal combustion engine, comprising at least one first sealing flange surface (14) via which the cylinder head (10) can be connected to an intake element, at least one second sealing flange surface (20) via which the cylinder head (10) can be connected to an exhaust element, a sealing surface integrated into the respective sealing flange surface (14, 20) via which the cylinder head (10) can be connected to a cylinder head cover element, at least one first receiving region (22) arranged on the side of the first sealing flange surface (14) for at least one first camshaft (27) to be mounted on the cylinder head (10), and at least one second receiving region (32) arranged on the side of the second sealing flange surface (20) for at least one second camshaft (34) to be mounted on the cylinder head (10), wherein the receiving regions (22, 32) are fluidically connected to one another at least in some regions, characterized bythat at least one of the receiving areas (22, 32) is assigned at least one supply point of the cylinder head (10), at which supply point blow-by gas of a crankcase ventilation of the internal combustion engine can be supplied to the receiving area (22, 32) assigned to the supply point, and the receiving areas (22, 32) are fluidically connected to one another via at least one through-opening (48) which is at least partially delimited by at least one wall (60, 62) of the cylinder head (10), wherein the walls (60, 62) run at least substantially parallel to one another and obliquely to the transverse direction of the cylinder head (10).

Description

[0001] The invention relates to a cylinder head for an internal combustion engine according to the preamble of patent claim 1 and to an internal combustion engine for a motor vehicle according to the preamble of patent claim 6.

[0002] Such a cylinder head and an internal combustion engine with such a cylinder head are known from DE 10 2009 020 100 A1. The cylinder head has at least one first sealing flange surface, via which the cylinder head can be connected to an intake element. The intake element is, for example, an intake module, via which air drawn in by the internal combustion engine can be supplied to combustion chambers, in particular cylinders.

[0003] The cylinder head further has at least one second sealing flange surface, via which the cylinder head can be connected to an exhaust element. The exhaust element can be an exhaust module, for example, an exhaust manifold, through which exhaust gas can be discharged from the combustion chambers and the internal combustion engine.

[0004] The cylinder head also has a sealing surface integrated into the respective sealing flange surface, via which the cylinder head can be connected to a cylinder head cover element. Due to the integration of this sealing surface into the respective sealing flange surface, the cylinder head cover element can be integrated into the intake element and / or exhaust element. In other words, the intake element and / or the exhaust element can assume the function of the cylinder head cover element, i.e., covering the cylinder head or at least one receiving area for at least one camshaft to be mounted on the cylinder head. This eliminates the need for a separate cylinder head cover.

[0005] The cylinder head has at least one first receiving area, arranged on the side of the first sealing flange surface, for at least one first camshaft to be mounted on the cylinder head. Furthermore, the cylinder head has at least one second receiving area, arranged on the side of the second sealing flange surface, for at least one second camshaft to be mounted on the cylinder head.

[0006] Finally, DE 101 02 644 C1 discloses a crankcase for a liquid-cooled reciprocating piston internal combustion engine. A cooling chamber common to all cylinders is arranged in the crankcase. Furthermore, at least one flow-influencing element is provided in the crankcase. The flow-influencing element extends over at least half the length of the cooling chamber and divides the cooling chamber, at least in a partial area, into an upper cooling chamber and a lower cooling chamber. The upper cooling chamber and the lower cooling chamber are connected to each other by openings in the flow-influencing element. The coolant is introduced into the cooling chamber through the upper cooling chamber.

[0007] During operation of internal combustion engines, a mixture can form which comprises a gas component and a liquid component contained within it in the form of suspended liquid particles. Such a mixture is also referred to as an aerosol. In internal combustion engines, for example, this mixture is what is known as blow-by gas. It has been shown that in conventional internal combustion engines, the effort required to separate the suspended liquid particles, i.e. the liquid component of the gas or mixture, from the gaseous component of the mixture requires the use of large and cost-intensive separation elements. One such separation element is, for example, an oil separator, by means of which the suspended liquid lubricating oil particles can be separated from the gas.

[0008] Furthermore, DE 10 2011 109 676 A1 discloses an internal combustion engine with at least one cylinder head.

[0009] It is therefore an object of the present invention to further develop a cylinder head for an internal combustion engine and an internal combustion engine with such a cylinder head of the type mentioned at the outset in such a way that a particularly space- and weight-efficient separation of the liquid portion from the gaseous portion can be realized.

[0010] This object is achieved by a cylinder head having the features of patent claim 1 and by an internal combustion engine having the features of patent claim 6. Advantageous embodiments with expedient and non-trivial further developments of the invention are specified in the remaining claims.

[0011] In order to create a cylinder head of the type specified in the preamble of patent claim 1, in which a particularly space- and weight-efficient separation of a liquid portion from a gaseous portion of a mixture comprising the gaseous and liquid portions can be achieved, the invention provides that the receiving areas for the camshafts are fluidically connected to one another at least in some areas. As a result of this fluidic connection, for example, a gas in which liquid suspended particles are received can flow back and forth between the first receiving area arranged on the side of the first sealing flange surface and thus on an intake or inlet side of the cylinder head, and the second receiving area arranged on the side of the second sealing flange surface and thus on an exhaust or outlet side of the cylinder head.

[0012] This allows at least partial separation of the liquid suspended particles, and thus of the liquid portion, from the gaseous portion of the mixture. In particular, this makes it possible to implement pre-separation. If, after this pre-separation, the mixture is fed, for example, to a separation device of the internal combustion engine, by means of which the liquid portion can be further separated from the gaseous portion, the weight and external dimensions of at least one separation element of the separation device can be kept low due to the highly effective and efficient pre-separation. The separation element can be an oil separator, for example, whose weight and installation space requirements can be kept low due to the pre-separation implemented.

[0013] The pre-separation achieved by the fluidic connection of the receiving areas does not require any additional installation space, so that the cylinder head enables effective, space-saving, weight-saving and cost-effective separation.

[0014] The mixture or gas that flows back and forth between the intake and exhaust sides is, for example, a lubricant mist, in particular a lubricating oil mist, which is created during operation of the internal combustion engine. During operation, the camshafts mounted on the cylinder head rotate about a rotational axis relative to the cylinder head, whereby the respective bearing points on which the camshafts are mounted on the cylinder head are cooled and / or lubricated with lubricant. As a result, the camshafts throw up the lubricant supplied to the bearing points, forming the lubricant mist. The gas or mixture can also be so-called blow-by gas from a crankcase or from a crankcase ventilation system of the internal combustion engine.

[0015] At least one of the receiving areas is assigned at least one supply point of the cylinder head, at which supply point blow-by gas from a crankcase ventilation system of the internal combustion engine can be supplied to the receiving area assigned to the supply point. The blow-by gas is a gas that flows past pistons arranged in the cylinders into a crankcase of the crankcase of the internal combustion engine and is discharged from the crankcase in order to keep the pressure prevailing in the crankcase low or below a predeterminable threshold value. The blow-by gas comprises a gaseous portion and a liquid portion, which comprises liquid fuel and / or liquid lubricant of the internal combustion engine.

[0016] The blow-by gas can now be fed to the corresponding intake area and, in particular, flow back and forth between the intake areas several times, whereby not only the mixture formed in the cylinder head but also the blow-by gas can be subjected to the described, effective separation.

[0017] To achieve a flow pattern advantageous for separation of the mixture flowing back and forth between the receiving areas, in particular the blow-by gas, it is further provided that the receiving areas are fluidically connected to one another via at least one through-opening, which is at least partially delimited by at least one wall of the cylinder head, wherein the wall extends obliquely to the transverse direction. This allows the mixture to be deflected or redirected, for example, upwards or downwards, with respect to its flow, which benefits separation.

[0018] In an advantageous embodiment of the invention, the receiving regions are fluidically separated from one another at at least one separation position by means of an intermediate wall and are fluidly connected to one another in the longitudinal direction of the cylinder head on a first side of the separation point and on a second side of the separation point facing away from the first side. The longitudinal direction corresponds at least substantially to the respective axis of rotation of the camshaft. In other words, when the camshafts are mounted on the cylinder head, the axes of rotation of the camshafts extend at least substantially parallel to the longitudinal direction of the cylinder head. The transverse direction of the cylinder head extends perpendicular to the longitudinal direction and runs from one of the axes of rotation to the other axis of rotation. The longitudinal direction and the transverse direction of the cylinder head span a plane to which the vertical direction of the cylinder head runs at least substantially perpendicular.

[0019] Because the receiving areas on the first and second sides are fluidically connected to one another and fluidically separated from one another in between, the mixture flowing through the cylinder head can be guided in the manner of a labyrinth seal. When the mixture flows back and forth between the receiving areas, in particular several times, an effective and at least partial separation of the liquid portion from the gaseous portion of the mixture is thus achieved. In other words, this corresponding design of the cylinder head enables labyrinth-like paths for the mixture to be created, whereby the liquid portion can be very effectively separated from the gaseous portion before the mixture is fed, for example, to the separation device.

[0020] It has proven particularly advantageous if the separation point is located in the area of ​​at least one bearing point for one of the camshafts. This allows for the back-and-forth flow of the mixture, while also ensuring a firm and stable mounting of the camshaft on the cylinder head.

[0021] In a further advantageous embodiment of the invention, the separation point is arranged in the longitudinal direction of the cylinder head, at least in some regions, between two cylinder regions of the cylinder head that follow one another in the longitudinal direction, wherein the cylinder regions are each assigned to a cylinder of the internal combustion engine. For example, at least one gas exchange valve assigned to a first cylinder of the internal combustion engine is arranged in a first cylinder region, while at least one second gas exchange valve assigned to a second cylinder of the internal combustion engine is arranged at least in some regions in the second cylinder region.This arrangement of the separation point allows the flow conditions resulting from the operation of the internal combustion engine in the individual cylinder areas to be exploited in order to support and / or cause a back and forth flow of the mixture that is advantageous for the separation.

[0022] Following the separation process in the cylinder head, the blow-by gas can be fed to the separation device, for example, where the liquid component is further separated from the gaseous component of the blow-by gas by means of the separation element of the separation device. Since pre-separation is already implemented in the cylinder head, the weight, space requirements, and cost of the separation device or separation element can be kept particularly low.

[0023] In a further embodiment of the invention, it has proven particularly advantageous if the sealing flange surfaces extend obliquely to the vertical direction of the cylinder head and extend from bottom to top toward each other in the vertical direction. This allows the intake element and the exhaust element to be mounted on the cylinder head in a simple, cost-effective, and time-efficient manner. For example, it is possible to form the intake element and the exhaust element at least partially in one piece and to place them on the cylinder head from above in the vertical direction of the cylinder head. The exhaust element is, for example, an exhaust module, in particular an exhaust manifold, through which exhaust gas is discharged from the cylinders of the internal combustion engine. The intake element is, for example, an intake module through which air drawn in by the internal combustion engine is supplied to the cylinders.

[0024] Due to the integration of the sealing surface into the respective sealing flange surface, the cylinder head cover element can be integrated into the intake element and / or the exhaust element, i.e., it can be formed integrally with the intake element and / or the exhaust element. In other words, the intake element and / or exhaust element can assume the function of the cylinder head cover, namely to at least partially cover the cylinder head and, in particular, at least one of the receiving areas. This eliminates the need for a separate cylinder head cover, so that a separate assembly process for the cylinder head cover can also be omitted.

[0025] In order to create an internal combustion engine of the type specified in the preamble of patent claim 7, in which a particularly space-saving, cost-effective and weight-efficient separation can be realized, it is provided according to the invention that the receiving regions are fluidically connected to one another at least in some regions.

[0026] As a result, a mixture comprising a gaseous portion and a liquid portion, for example in the form of liquid suspended particles, can flow back and forth between the receiving regions, in particular several times, whereby the liquid portion can be at least partially separated from the gaseous portion. If, in the longitudinal direction of the cylinder head, several sub-regions in which the receiving regions are fluidically connected to one another alternate with several sub-regions of the cylinder head in which the receiving regions are fluidically separated from one another, a labyrinth-like guidance of the mixture flowing through the cylinder head, in particular the gaseous mixture, can be achieved, whereby an effective and at least partial separation of the liquid portion from the gaseous portion can be achieved.At least one supply point of the cylinder head is assigned to at least one of the receiving areas, at which supply point blow-by gas from a crankcase ventilation system of the internal combustion engine can be supplied to the receiving area assigned to the supply point. Advantageous embodiments of the cylinder head according to the invention are to be regarded as advantageous embodiments of the internal combustion engine according to the invention, and vice versa.

[0027] Further advantages, features and details of the invention will become apparent from the following description of a preferred embodiment and from the drawing.

[0028] The drawing shows: Fig. 1 a schematic front view of a cylinder head for an internal combustion engine, wherein a sealing surface for a cylinder head cover element is integrated into respective sealing flange surfaces for an intake element and an exhaust element, which are to be connected to the cylinder head, and wherein respective receiving regions for receiving a respective camshaft are at least partially fluidically connected to one another in the transverse direction of the cylinder head; Fig. 2 a schematic perspective view of the cylinder head; Fig. 3 a partial schematic and perspective sectional view of an internal combustion engine with the cylinder head; and Fig. 4 shows a further schematic and perspective sectional view of the internal combustion engine.

[0029] Fig. 1 and Fig. 2 show a cylinder head 10 for an internal combustion engine of a motor vehicle, in particular a passenger car, designed as a reciprocating piston internal combustion engine.

[0030] The internal combustion engine is designed as an in-line engine and comprises four combustion chambers in the form of cylinders, which are arranged in series, i.e. one after the other in the longitudinal direction of the internal combustion engine. The longitudinal direction of the internal combustion engine corresponds to a Fig. 2 by a directional arrow 12 illustrated longitudinal direction of the cylinder head 10.

[0031] The cylinder head 10 has at least one first sealing flange surface 14, which is arranged on an inlet side 16 of the cylinder head 10, also referred to as the intake side, and via which the cylinder head can be connected to an intake element in the form of an intake module. When connected to the cylinder head 10, the intake module is fluidly connected to intake channels 19 of the cylinder head 10, so that air drawn in by the internal combustion engine can flow into the respective cylinders via the intake module and the intake channels 19.

[0032] The cylinder head 10 further comprises at least one second sealing flange surface 20, which is arranged on an exhaust side 18 of the cylinder head 10, also referred to as the exhaust side, and via which the cylinder head 10 can be connected to an exhaust element in the form of an exhaust module, for example in the form of an exhaust manifold. The exhaust element, in its state connected to the cylinder head 10, is Fig. 1 and Fig. 2 unrecognizable exhaust ports of the cylinder head 10 are fluidly connected, so that the exhaust gas from the cylinders can flow into the exhaust element via the exhaust ports and be led away from the internal combustion engine by means of the exhaust element.

[0033] A sealing surface for connecting the cylinder head 10 to a cylinder head cover element is integrated into the respective sealing flange surface 14, 20. This means that the cylinder head cover element, for example in the form of a cylinder head cover, can be integrated into the intake element and / or the exhaust element. In other words, the exhaust element and / or the intake element can take over the function of the cylinder head cover. Thus, a separate cylinder head cover can be omitted. As is particularly Fig. As can be seen from Figure 1, the sealing flange surfaces 14, 20 extend obliquely to the vertical direction of the cylinder head 10, indicated by a directional arrow 15, and extend toward each other in the vertical direction from bottom to top. The vertical direction of the cylinder head corresponds to the vertical direction of the internal combustion engine and extends at least substantially perpendicular to the longitudinal direction, for example, from a crankcase of the internal combustion engine, to which the cylinder head 10 is to be connected, toward the cylinder head 10, or vice versa.

[0034] This design of the sealing flange surfaces 14, 20 allows for particularly simple assembly of the intake element and the exhaust element. Furthermore, the cylinder head 10, when viewed from the front, essentially has the shape of the Greek capital letter delta (Δ), which is why the cylinder head 10 is also referred to as a delta cylinder head.

[0035] On the side of the first sealing flange surface 14 and thus on the intake side 16, a first receiving area 22 for a first camshaft is arranged. The first camshaft is an intake camshaft, which is to be mounted on a bearing track 24 extending in the longitudinal direction of the cylinder head 10 with bearing points 26 so as to be rotatable relative to the cylinder head 10 about a rotational axis extending in the longitudinal direction of the cylinder head 10. The intake camshaft, in its state mounted on the cylinder head 10, is made of Fig. 3 and Fig. 4 and designated there as 27.

[0036] The intake camshaft 27 serves to control the intake air flow during operation of the Fig. 3 and Fig. 4, the internal combustion engine, partially visible in section, to actuate gas exchange valves in the form of intake valves 28. The intake valves 28 serve to control the inflow of the intake air into the cylinders. Two intake valves 28 are assigned to each cylinder. Fig. 3 and Fig. 4 also shows spring elements 30, against whose respective spring force the intake valves 28 are actuated by means of the intake camshaft 27.

[0037] The cylinder head 10 further comprises a second receiving area 32, arranged on the side of the sealing flange surface 20 and thus on the exhaust side 18, for a second camshaft to be mounted on the cylinder head 10. The second camshaft is an exhaust camshaft, which is arranged in Fig. 3 and Fig. 4 and is designated 34 there.

[0038] The exhaust camshaft 34 is mounted on the cylinder head 10 so as to be rotatable relative to the cylinder head 10 about an axis of rotation running at least substantially parallel to the longitudinal direction of the cylinder head 10. For this purpose, the receiving area 32 comprises a bearing lane 36 with bearing points 38, of which Fig. 1 and Fig. 2, only one bearing point 38 is visible. The bearing track 36 also extends in the longitudinal direction of the cylinder head 10. The exhaust camshaft 34 serves to actuate gas exchange valves in the form of exhaust valves 56, by means of which the outflow of exhaust gas from the cylinders is controlled. Each cylinder is assigned two exhaust valves 56. In Fig. 3 and Fig. 4 also shows spring elements 58. The exhaust camshaft 34 actuates the exhaust valves 56 against a respective spring force of the spring elements 58. The bearing points 26, 38 comprise a respective bearing block 40, which is to be connected to a respective bearing cap 42 by means of bearing screws 44.

[0039] When the bearing cap 42 is connected to the corresponding bearing block 40, a respective receiving opening is defined by the bearing block 40 on the one hand and the bearing cap 42 on the other hand, in which the corresponding intake camshaft 27 or exhaust camshaft 34 is received in a longitudinal region on the outer circumference. The respective bearing receptacle is also referred to as a bearing bore and is defined half by the respective bearing block 40 and half by the respective bearing cap 42.

[0040] In the transverse direction of the cylinder head 10, indicated by a directional arrow 13, a central web 46 of the cylinder head 10 is arranged between the receiving areas 22, 32. The transverse direction of the cylinder head 10, which runs perpendicular to the longitudinal direction, forms a plane with the longitudinal direction, to which the vertical direction runs at least substantially perpendicular. The central web 46 fluidically separates the receiving areas 22, 32 from one another in certain regions.

[0041] As seen in conjunction with Fig. 3 and Fig. 4, however, the central web 46 has through openings 48, via which the receiving areas 22, 32 are fluidically connected to one another in some areas with respect to the longitudinal direction.

[0042] Due to this fluidic connection of the receiving areas 22, 32 to one another, a mixture flowing through the cylinder head 10 during operation of the internal combustion engine, which mixture has a gaseous portion and a liquid portion formed, for example, by liquid suspended particles in the gaseous portion, can flow back and forth several times between the receiving areas 22, 32.

[0043] Since a respective separation region 50 is provided between the longitudinally spaced and successive through-openings 48, which are arranged in the region of the bearing points 26, 28 and in which the receiving regions 22, 32 are fluidically separated from one another by means of a respective intermediate wall 52 of the cylinder head 10, a labyrinth-like flow path of the mixture through the cylinder head 10 can be realized. As a result of this flow guidance of the mixture in the manner of a labyrinth seal, an effective and efficient and at least partial separation of the liquid portion from the gaseous portion can be realized. In this case, this creates a pre-separation of the liquid portion from the gaseous portion, so that the mixture has only a very small liquid portion after the pre-separation.

[0044] The internal combustion engine comprises a Fig. 1 to 4, a separation device not visible, with at least one separation element, for example, an oil separator, to which the mixture is fed after the pre-separation. The separation element allows the liquid component to be further separated and thus reduced. Since the pre-separation has already been achieved, the external dimensions and thus the space required, weight, and cost of the separation element can be kept particularly low.

[0045] The mixture is, for example, a blow-by gas from a crankcase ventilation system that can be supplied to or is supplied to the cylinder head 10. For this purpose, the blow-by gas from the crankcase is supplied, for example, to one of the receiving areas 22, 32.

[0046] The separation regions 50 are arranged, at least in part, in the longitudinal direction and in the vertical direction of the cylinder head 10, at the level of respective bearing points 26, 38, which are opposite one another in the transverse direction. Furthermore, the separation regions 50 are arranged, at least in part, in the longitudinal direction, between two so-called cylinder sections 54 of the cylinder head 10.

[0047] The respective intake valves 28 and exhaust valves 56 assigned to the corresponding cylinder are arranged in the cylinder sections 54. This corresponding arrangement of the separation regions 50 allows flow conditions resulting from the operation of the internal combustion engine to be utilized to support or effect the labyrinthine flow of the mixture back and forth through the passage openings 48 and between the receiving regions 22, 32.

[0048] The mixture, which is, for example, an oil mist, flows, for example, from the inlet side 16 of the cylinder section 54 of a first cylinder, viewed in the longitudinal direction of the internal combustion engine, via a first of the through-openings 48, viewed in the longitudinal direction of the cylinder head 10, to the outlet side 18 of the cylinder section 54 of the first cylinder. From there, the mixture flows, for example, to the outlet side 18 of the cylinder section 54 of a second cylinder, following the first cylinder in the longitudinal direction. From there, the mixture flows further via a second through-opening 48, adjoining the first through-opening 48, to the inlet side 16 of the cylinder section of the second cylinder. The mixture then flows to the inlet side 16 of the cylinder section 54 of a third cylinder, following the second cylinder in the longitudinal direction, and then further to the outlet side 18 of the cylinder section 54 of the third cylinder.

[0049] From there, the mixture flows to the exhaust side of cylinder section 54 of a fourth cylinder, which follows the third cylinder in the longitudinal direction, whereupon the mixture flows to the inlet side 16 of cylinder section 54 of the fourth cylinder. This creates a zigzag-like flow of the mixture (oil mist), so that the liquid portion is at least partially separated from the gaseous portion already in the cylinder head 10. This liquid portion is, in particular, lubricant in the form of lubricating oil, which is absorbed into the gaseous portion as liquid droplets.

[0050] Based on Fig.3 shows that the walls 60, 62 of the cylinder head 10 delimiting the respective through-opening 48 extend at least substantially parallel to one another and obliquely to the transverse direction of the cylinder head 10. This creates a particularly advantageous flow pattern for the mixture flowing through the cylinder head 10, which benefits the separation or pre-separation. List of reference symbols 10 cylinder head 12 Direction arrow 13 Direction arrow 14 first sealing flange surface 15 Direction arrow 16 Inlet side 18 Exhaust side 19 Inlet channel 20 second sealing flange surface 22 first recording area 24 first warehouse lane 26 storage location 27 Intake camshaft 28 Inlet valve 30 spring element 32 second recording area 34 exhaust camshaft 36 second warehouse lane 38 storage location 40 storage chair 42 bearing caps 44 bearing screw 46 center bridge 48 passage opening 50 Separation area 52 Partition wall 54 cylinder section 56 exhaust valve 58 spring element

Claims

[1] Cylinder head (10) for an internal combustion engine, with at least one first sealing flange surface (14), via which the cylinder head (10) can be connected to an intake element, with at least one second sealing flange surface (20), via which the cylinder head (10) can be connected to an exhaust element, with a sealing surface integrated into the respective sealing flange surface (14, 20), via which the cylinder head (10) can be connected to a cylinder head cover element, with at least one first receiving area (22) arranged on the side of the first sealing flange surface (14) for at least one first camshaft (27) to be mounted on the cylinder head (10), and with at least one second receiving area (32) arranged on the side of the second sealing flange surface (20) for at least one second camshaft (34) to be mounted on the cylinder head (10), wherein the receiving areas (22, 32) are fluidically connected to one another at least in regions are connected, characterized bythat at least one of the receiving areas (22, 32) is assigned at least one supply point of the cylinder head (10), at which supply point blow-by gas of a crankcase ventilation of the internal combustion engine can be fed to the receiving area (22, 32) assigned to the supply point, and the receiving areas (22, 32) are fluidically connected to one another via at least one through-opening (48) which is at least partially delimited by at least one wall (60, 62) of the cylinder head (10), wherein the walls (60, 62) run at least substantially parallel to one another and obliquely to the transverse direction of the cylinder head (10). [2] Cylinder head (10) according to claim 1, characterized bythat the receiving areas (22, 32) are fluidically separated from one another at at least one separation point (50) by means of an intermediate wall (52) and are fluidically connected to one another in the longitudinal direction of the cylinder head (10) on a first side of the separation point (50) and on a second side of the separation point (50) facing away from the first side. [3] Cylinder head (10) according to claim 2, characterized by that the separation point (50) is arranged in the region of at least one bearing point (26, 38) for supporting one of the camshafts (27, 34). [4] Cylinder head (10) according to one of claims 2 or 3, characterized by that the separation point (50) is arranged in the longitudinal direction of the cylinder head (10) at least in regions between two cylinder regions (54) of the cylinder head (10) which follow one another in the longitudinal direction and which are each assigned to a cylinder of the internal combustion engine. [5] Cylinder head (10) according to one of the preceding claims, characterized by that the sealing flange surfaces (14, 20) extend obliquely to the vertical direction of the cylinder head (10) and run towards each other in the vertical direction from bottom to top. [6] Internal combustion engine for a motor vehicle, with a cylinder head (10) which has at least one first sealing flange surface (14), via which the cylinder head (10) can be connected to an intake element, at least one second sealing flange surface (20), via which the cylinder head (10) can be connected to an exhaust element, a sealing surface integrated into the respective sealing flange surface (14, 20), via which the cylinder head (10) can be connected to a cylinder head cover element, at least one first receiving area (22) arranged on the side of the first sealing flange surface (14) for at least one first camshaft (27) to be mounted on the cylinder head (10), and at least one second receiving area (32) arranged on the side of the second sealing flange surface (20) for at least one second camshaft (34) to be mounted on the cylinder head (10), wherein the receiving areas (22, 32) at least partially are fluidly connected to each other, characterized bythat at least one of the receiving areas (22, 32) is assigned at least one supply point of the cylinder head (10), at which supply point blow-by gas of a crankcase ventilation of the internal combustion engine can be fed to the receiving area (22, 32) assigned to the supply point, and the receiving areas (22, 32) are fluidically connected to one another via at least one through-opening (48) which is at least partially delimited by at least one wall (60, 62) of the cylinder head (10), wherein the walls (60, 62) run at least substantially parallel to one another and obliquely to the transverse direction of the cylinder head (10).

Images