Abstract: An internal combustion engine having a prechamber with first and second sub-chambers. The first sub-chamber has a prechamber gas valve and an igniter. The second sub-chamber has a plurality of first orifices to couple with a main combustion chamber. The second sub-chamber is coupled to the first sub-chamber via a direct connection or an indirection connection. The direct connection includes at least one second orifice, such as a plurality of second orifices. The indirect connection includes a third sub-chamber, wherein the third sub-chamber is coupled to the first sub-chamber by at least one third orifice (e.g., a plurality of third orifices), and the third sub-chamber is coupled to the second sub-chamber by at least one second orifice (e.g., a plurality of second orifices).

Abstract: A cylinder head for an internal combustion engine, wherein the cylinder head (1) comprises at least one first component part (12) and at least one second component part (13) joined to the at least one first component part (12), wherein the at least one first component part (12) is manufactured with the use of at least one of the group consisting of primary shaping, forming and cutting, wherein the at least one second component part (13) is manufactured with the use of an additive manufacturing method.

Abstract: An internal combustion engine having a prechamber with first and second sub-chambers. The first sub-chamber has a prechamber gas valve and an igniter. The second sub-chamber has a plurality of first orifices to couple with a main combustion chamber. The second sub-chamber is coupled to the first sub-chamber via a direct connection or an indirection connection. The direct connection includes at least one second orifice, such as a plurality of second orifices. The indirect connection includes a third sub-chamber, wherein the third sub-chamber is coupled to the first sub-chamber by at least one third orifice (e.g., a plurality of third orifices), and the third sub-chamber is coupled to the second sub-chamber by at least one second orifice (e.g., a plurality of second orifices).

Abstract: In one embodiment, a method is provided. The method includes receiving a signal representative of an engine vibration transmitted via a knock sensor, wherein the knock sensor is disposed in an engine. The method additionally includes deriving a valve wear measurement during operation of the engine based on the signal. The method further includes communicating the valve wear measure.

Abstract: An internal combustion engine is provided. The internal combustion engine includes a control device, and at least one injector for liquid fuel that includes a discharge opening for the liquid fuel. The at least one injector is connected to a collection volume by means of a line for liquid fuel. Liquid fuel can flow through the line for liquid fuel from the at least one injector to the collection volume. A control element that can be adjusted by the control device via a control signal is also provided. Via the control element, a back pressure in the line for liquid fuel can be adjusted in order to adjust an amount of liquid fuel discharged through the discharge opening of the at least one injector. Also provided is a method for operating an internal combustion engine and an injector.

Abstract: In one embodiment, a method is provided. The method includes receiving a signal representative of an engine vibration transmitted via a knock sensor, wherein the knock sensor is disposed in an engine. The method additionally includes deriving a valve wear measurement during operation of the engine based on the signal. The method further includes communicating the valve wear measure.

Abstract: Disclosed is a prechamber device for a combustion engine. The prechamber device comprises a prechamber body circumferentially enclosing a prechamber cavity, a nozzle body extending from the prechamber body and disposed at a first axial end of the prechamber device, wherein an interior of the nozzle body is in fluid communication with and provides an appendix of the prechamber cavity. The prechamber body and the nozzle body are provided as a wall comprising an inner surface and an outer surface and comprise a first material. A core member of a second material is enclosed inside the wall between the inner surface and the outer surface and axially extending inside the nozzle body, enclosed by the first material.

Abstract: In one embodiment, a method is provided. The method includes receiving a signal representative of an engine vibration transmitted via a knock sensor, wherein the knock sensor is disposed in an engine. The method additionally includes deriving a valve wear measurement during operation of the engine based on the signal. The method further includes communicating the valve wear measure.

Abstract: An internal combustion engine is provided. The internal combustion engine includes a control device, and at least one injector for liquid fuel that includes a discharge opening for the liquid fuel. The at least one injector is connected to a collection volume by means of a line for liquid fuel. Liquid fuel can flow through the line for liquid fuel from the at least one injector to the collection volume. A control element that can be adjusted by the control device via a control signal is also provided. Via the control element, a back pressure in the line for liquid fuel can be adjusted in order to adjust an amount of liquid fuel discharged through the discharge opening of the at least one injector. Also provided is a method for operating an internal combustion engine and an injector.

Abstract: An internal combustion engine includes a plurality of cylinders (1 through 12) and at least one turbocharger (2) and at least one exhaust manifold (13) which passes exhaust gases from two or more cylinders (5, 6) to the turbocharger (20), wherein the exhaust manifold (13) has a region (15) cooled with a cooling device and a substantially uncooled region (14).

Abstract: An internal combustion engine, in particular a stationary gas engine, comprising at least one spark plug connector plug device (2) which can be fixed to the internal combustion engine, wherein the spark plug connector plug device (2) and the fixing thereof to the internal combustion engine withstand an application of force exerted on the spark plug connector plug device of at least 1000 Newtons, preferably in the longitudinal direction of the spark plug connector plug device (2).

Abstract: An internal combustion engine comprising a plurality of cylinders (1 through 12) and at least one turbocharger (20) and at least one exhaust manifold (13) which passes exhaust gases from two or more cylinders (5, 6) to the turbocharger (20), wherein the exhaust manifold (13) has a region (15) cooled with a cooling device and a substantially uncooled region (14).

Abstract: An internal combustion engine, in particular a stationary gas engine, comprising at least one spark plug connector plug device (2) which can be fixed to the internal combustion engine, wherein the spark plug connector plug device (2) and the fixing thereof to the internal combustion engine withstand an application of force exerted on the spark plug connector plug device of at least 1000 Newtons, preferably in the longitudinal direction of the spark plug connector plug device (2).