Abstract: Various aspects of the present disclosure are directed to a cylinder head for an internal combustion engine. In one example embodiment, the cylinder head includes at least one spark plug having at least one earth electrode, a precombustion chamber accommodating the at least one spark plug, and a fuel channel which leads into the precombustion chamber. The fuel channel having a flow axis at an outlet that is oriented in the direction of the at least one earth electrode. An axis of rotation of the at least one spark plug has an offset with respect to the flow axis between 0 and 15% of the greatest precombustion chamber diameter.

Abstract: Various aspects of the present disclosure are directed to a cylinder head for an internal combustion engine. In one example embodiment, the cylinder head includes at least one spark plug having at least one earth electrode, a precombustion chamber accommodating the at least one spark plug, and a fuel channel which leads into the precombustion chamber. The fuel channel having a flow axis at an outlet that is oriented in the direction of the at least one earth electrode. An axis of rotation of the at least one spark plug has an offset with respect to the flow axis between 0 and 15% of the greatest precombustion chamber diameter.

Abstract: A cylinder head of an internal combustion engine, comprising at least one cylinder, a cooling jacket arrangement with a first cooling jacket arranged in the region of a longitudinal central plane of the cylinder head, a second cooling jacket facing a fire deck of the cylinder head, and a third cooling jacket facing away from the fire deck, wherein the first cooling jacket and the second cooling jacket are flow connected to the third cooling jacket via at least one first transfer section and at least one second transfer section respectively.

Abstract: The invention relates to a cooling system (4) for an internal combustion engine having at least one cylinder head (1), the at least one cylinder head being connected to at least one cylinder block (2) by means of a cylinder-bead sealing surface (28).

Abstract: A cylinder head of an internal combustion engine, comprising at least one cylinder, a cooling jacket arrangement with a first cooling jacket arranged in the region of a longitudinal central plane of the cylinder head, the a second cooling jacket facing a fire deck of the cylinder head, and a third cooling jacket facing away from the fire deck wherein the first cooling jacket and the second cooling jacket are flow connected to the third cooling jacket via at least one first transfer section and at least one second transfer section respectively.

Abstract: The invention relates to a cylinder head (4) for an internal combustion engine having liquid cooling, comprising at least two outlet valves for controlling outlet openings (14) and at least one inlet valve for controlling at least one inlet opening (15) per cylinder (2), having at least one cooling jacket (3) through which coolant flows. An outlet valve bridge (7) is arranged between two adjacent outlet valves and an inlet/outlet valve bridge (8) is arranged in each case between at least one outlet valve and an adjacent inlet valve. A first cooling channel (18) is arranged in the region of at least one outlet valve bridge (7), and a second cooling channel (19) is arranged in the region of at least one inlet/outlet valve bridge (8), and the first and second cooling channels (18, 19) are fluidically connected to one other in a central cooling region (20) of the cylinder (2) with one another.

Abstract: The invention relates to a fluid-cooled internal combustion engine (1) having at least one cylinder block (40) and at least one cylinder head (10) for at least two cylinders (41), wherein the internal combustion engine (1) has a first side (4) and an opposite second side (5) of a longitudinal center plane (27) spanned by at least two cylinder axes (46) of the cylinders (41). In at least one web portion (12) between two cylinders (41) positioned next to one another in the region of a motor transverse plane (3) arranged in a normal position to the longitudinal center plane in the cylinder head (10), at least one second cooling channel (13) connecting the first side (4) and the second side (5), having at least one first opening (31) on the first side (4) and at least one second opening (32) on the second side (5), is arranged. The aim of the invention is to cool the web portion (12) in a most space-saving manner.

Abstract: The invention relates to a cylinder head (1) for an internal combustion engine having at least one cylinder, having at least one valve seat ring (3) for a lifting valve, wherein the valve seat ring (3) is surrounded by an annular cooling channel (4) for a coolant which is formed at least partially into the cylinder head (1), wherein the cooling channel (4) surrounds the valve seat ring at least partially and extends between at least one inlet (5, 15, 25) and at least one outlet (6). In order to reduce the valve wear, it is provided that, as viewed in a section perpendicularly with respect to the axis (3a) of the valve seat ring (3), the cooling channel (4) has at least one preferably substantially crescent-shaped bulge (10) in the region of the inlet (5, 55, 25) and/or the outlet (6).

Abstract: The invention relates to a cylinder head (4) for an internal combustion engine having liquid cooling, comprising at least two outlet valves for controlling outlet openings (14) and at least one inlet valve for controlling at least one inlet opening (15) per cylinder (2), having at least one cooling jacket (3) through which coolant flows. An outlet valve bridge (7) is arranged between two adjacent outlet valves and an inlet/outlet valve bridge (8) is arranged in each case between at least one outlet valve and an adjacent inlet valve. A first cooling channel (18) is arranged in the region of at least one outlet valve bridge (7), and a second cooling channel (19) is arranged in the region of at least one inlet/outlet valve bridge (8), and the first and second cooling channels (18, 19) are fluidically connected to one other in a central cooling region (20) of the cylinder (2) with one another.

Abstract: The invention relates to a cylinder head (1) for an internal combustion engine having at least one cylinder, having at least one valve seat ring (3) for a lifting valve, wherein the valve seat ring (3) is surrounded by an annular cooling duct (4) for a coolant that is at least partly molded into the cylinder head (1), wherein the cooling duct (4) at least partly surrounds the valve seat ring and extends between an inlet (5, 15, 25) and at least one outlet (6). In order to reduce the valve wear, provision is made for a plurality of inlets (5, 15, 25) to open into the cooling duct (4), wherein the inlets (5, 15, 25) are preferably arranged asymmetrically in relation to a meridian plane (?) of the valve seat ring (3) through the outlet (6).

Abstract: The invention relates to a cooling system (4) for an internal combustion engine having at least one cylinder head (1), the at least one cylinder head being connected to at least one cylinder block (2) by means of a cylinder-bead sealing surface (28).

Abstract: The invention relates to a cylinder head (1) for an internal combustion engine having at least one cylinder, having at least one valve seat ring (3) for a lifting valve, wherein the valve seat ring (3) is surrounded by an annular cooling channel (4) for a coolant which is formed at least partially into the cylinder head (1), wherein the cooling channel (4) surrounds the valve seat ring at least partially and extends between at least one inlet (5, 15, 25) and at least one outlet (6). In order to reduce the valve wear, it is provided feat, as viewed in a section perpendicularly with respect to the axis (3a) of the valve seat ring (3), the cooling channel (4) has at least one preferably substantially crescent-shaped bulge (10) in the region of the inlet (5, 55, 25) and/or the outlet (6).

Abstract: The invention relates to a cylinder head (1) for an internal combustion engine having at least one cylinder, having at least one valve seat ring (3) for a lifting valve, wherein the valve seat ring (3) is surrounded by an annular cooling duct (4) for a coolant that is at least partly molded into the cylinder head (1), wherein the cooling duct (4) at least partly surrounds the valve seat ring and extends between an inlet (5, 15, 25) and at least one outlet (6). In order to reduce the valve wear, provision is made for a plurality of inlets (5, 15, 25) to open into the cooling duct (4), wherein the inlets (5, 15, 25) are preferably arranged asymmetrically in relation to a meridian plane (?) of the valve seat ring (3) through the outlet (6).

Abstract: The invention relates to an internal combustion engine (1) having a cylinder head (2) which is configured jointly for a plurality of cylinders (Z) and a liner unit (3) for a plurality of cylinders (Z) which is fastened to the cylinder head (2), wherein a cooling jacket arrangement having at least one cooling jacket (6, 7) is formed into the liner unit (3), which cooling jacket arrangement preferably surrounds the cylinders (Z). In order to avoid deformations of the liner unit (3), it is provided that the liner unit (3) has a clearance with respect to a surrounding cylinder housing (9).

Abstract: The invention relates to a liquid cooling system (K) for an internal combustion engine (2) of a vehicle with a cylinder head (3) having as integrated exhaust manifold (7), wherein the cylinder head (3) has at least a first cooling chamber (5) for cooling areas adjoining a combustion chamber and at least a second cooling chamber (6) for cooling the exhaust manifold (7), wherein flows can pass through the first and second cooling chambers (5, 6) in parallel separately from one another. The cooling management can be improved in a simple manner if at least one oil cooler (14) and/or at least one vehicle heating element (15) is arranged in series with the second cooling chamber (6) in the cooling circuit (1).

Abstract: A cylinder head (1) for an internal combustion engine with liquid cooling and a liquid-cooled exhaust manifold (8) and which is arranged integrally with the cylinder head (1) includes at least one first and one second cooling chamber (4, 9) through which a coolant flows, and with the region of the exhaust manifold (8) being enclosed at least partly by the second cooling chamber. In order to ensure by way of simple production the optimal removal of heat from thermally critical regions, the first and second cooling chambers are flow-connected via at least one borehole (10) with one another.

Abstract: An internal combustion engine (1), includes a cylinder head (2) and a cylinder block (3), with a crankcase (10) being fixed to the cylinder block (3), and with the crankcase (10) including at least one oil pump. In order to reduce the production effort the oil pump is arranged in the crankcase (10), with the oil pump (40) being connected with a flange (43), and with the flange (43) being fixed to a mounting wall (42) of the crankcase (10).

Abstract: The invention relates to an exhaust gas line (1) of an internal combustion engine, comprising at least one catalytic converter (2) which is provided with at least one catalytic converter support (4) which is arranged in the housing (3) and which comprises at least one first and one second area (5, 6) which can be flowed through in parallel, with the flow being capable of being deactivated in at least one area by means of a switching device (8) arranged in the exhaust gas line (1). In order to achieve a rapid activation of the catalytic converter in the simplest possible and most compact way it is provided that the areas (5, 6) of the catalytic converter support (4) have different physical and/or chemical properties in relation to response behavior, permeability, catalytic activity and/or thermal inertia.

Abstract: An internal combustion engine (1), including a cylinder head (2) and a cylinder block (3), with a crankcase (10) being fixed to the cylinder block (3), and with at least one mass balancing shaft (20) being held in the crankcase (10). In order to reduce the production effort it is provided that—when seen in the direction of the axis (19a) of the crankshaft (19)—a first pin (26) which is arranged in a borehole (6) and arranged as an alignment pin is positioned in the region of the face side (5) of the crankcase (10) on a straight connecting line (27) between the axis (20a) of the mass balancing shaft (20) and the axis (19a) of the crankshaft (19), with preferably the first pin (26) being arranged in the crankcase (10) and the borehole (6) in the flanged bush (24).

Abstract: A cylinder head of an internal combustion engine with several cylinders includes an inlet side and an outlet side with at least two outlet channels per cylinder, wherein a first coolant jacket is arranged in the cylinder head, the first coolant jacket including a first coolant collection channel which extends along the cylinder head on the outlet side over the outlet channels. The first coolant collection channel is connected to cooling chambers at least partially surrounding the outlet channels, the cooling chambers being in a fluidic connection with at least one transfer opening in a cylinder head gasket plane, wherein one first transfer opening per cylinder is arranged in a first transverse engine plane containing a cylinder axis, and wherein a first transverse cooling passage extends from each first transfer opening in the first transverse engine plane between two respective outlet channels, the first transverse cooling passage splitting into two cooling sub-passages in the area of the cylinder axis.