Abstract: Spark plug for igniting a combustible fuel in an internal combustion engine, wherein the spark plug has an igniter arranged at an end of the spark plug facing the combustion chamber, when the spark plug is mounted in the internal combustion engine. The spark plug includes a wall and a sealing area. The wall at least partially surrounds the igniter. The sealing area is used for sealing the combustion chamber against the environment. The wall has the sealing area located at an end of the wall, which end faces the combustion chamber when the spark plug is mounted in the internal combustion engine.

Abstract: A spark plug of an internal combustion engine has a sealing area between a mounting portion (e.g., threads) and an end portion of a housing of the spark plug. The end portion faces a combustion chamber of the internal combustion engine. The spark plug includes a flow control element coupled to the end portion, wherein the flow control element projects beyond an igniter in a direction toward the combustion chamber.

Abstract: A method for manufacturing an assembly of a center pin and a middle electrode carrier or a middle electrode, respectively, for a spark plug, which spark plug can be used for igniting a combustible air-fuel-mixture in an internal combustion engine, wherein— a piece of wire or rod is provided having, preferably over its length, a core of a first material which is surrounded by an outer layer of a second material, the second material being different from the first material, wherein the core is exposed at one end of the piece of wire or rod; a middle electrode carrier or a middle electrode, respectively, is provided at said one end of the piece of wire or rod; a high energy beam, preferably a laser beam, is directed to the exposed core and a powder is melted onto the exposed core by the high energy beam such that in a contact region of the powder and the exposed core a microstructure composed of material of the core and powder is formed after resolidification of the material of the core and the powder and the

Abstract: Spark plug for igniting a combustible fuel in an internal combustion engine, wherein the spark plug has an igniter arranged at an end of the spark plug facing the combustion chamber, when the spark plug is mounted in the internal combustion engine. The spark plug includes a wall and a sealing area. The wall at least partially surrounds the igniter. The sealing area is used for sealing the combustion chamber against the environment. The wall has the sealing area located at an end of the wall, which end faces the combustion chamber when the spark plug is mounted in the internal combustion engine.

Abstract: Method for manufacturing a spark plug for a combustion engine, wherein the spark plug has at least two components which are joined by at least one welded joint which has been manufactured in a welding process, wherein for improving selected material properties of the welded joint a laser beam is directed to the welded joint and in that a powder which improves the selected material properties is introduced into the welded joint which is melted on its surface by the laser beam such that the powder melts and due to a connection of the melted powder with the melted aggregate structure of the surface of the welded joint a treated area with improved material properties results.

Abstract: Method for manufacturing a spark plug for a combustion engine, wherein the spark plug has at least two components which are joined by at least one welded joint which has been manufactured in a welding process, wherein for improving selected material properties of the welded joint a laser beam is directed to the welded joint and in that a powder which improves the selected material properties is introduced into the welded joint which is melted on its surface by the laser beam such that the powder melts and due to a connection of the melted powder with the melted aggregate structure of the surface of the welded joint a treated area with improved material properties results.

Abstract: An internal combustion engine is disclosed, comprising at least one first compression device and at least one second compression device which is connected in series relative to the first compression device. At least one bypass pipe bypasses at least one compression device. At least one controllable valve is arranged in the at least one bypass pipe such that the amount of fluid which can be recirculated around the compression device can be controlled.

Abstract: A method is provided for operating a stationary internal combustion machine including a compressor device of variable compressor geometry which compresses gas fed to the internal combustion machine, and a throttle device which is connected downstream of the compressor device and with which the amount of compressed gas fed to the internal combustion machine is variable. The internal combustion machine is regulated by way of the actuation of at least two adjusting members, wherein the internal combustion machine is regulated to a—preferably substantially constant—engine regulating value. Upon a deviation in the engine regulating value from a reference value, the amount of gas fed to the internal combustion machine is altered by the actuation of the throttle device as the first adjusting member and by the variation in the geometry of the compressor device as the second adjusting member so that the engine regulating value is re-set to the reference value.

Abstract: A stationary internal combustion engine comprising a combustion engine and at least one compression device is disclosed. The combustion engine and the at least one compression device are connected to each other without vibrations being transmitted therebetween.

Abstract: An internal combustion engine is disclosed, comprising at least one first compression device and at least one second compression device which is connected in series relative to the first compression device. At least one bypass pipe bypasses at least one compression device. At least one controllable valve is arranged in the at least one bypass pipe such that the amount of fluid which can be recirculated around the compression device can be controlled.

Abstract: A spark plug of an internal combustion engine, in particular for use in Otto-cycle gas engines, comprising an insulator body, a base central electrode, at least one ground electrode and at least one swirl chamber, wherein the electrodes of the spark plug are surrounded by a wall, which in particular is in the form of a surface of a cylinder, of the swirl chamber, wherein at least one ground electrode carrier arrangement (8) with a plurality of inwardly facing, preferably flat ground electrodes (9) or a plurality of ground electrode carriers (6) each with inwardly facing, preferably flat ground electrodes (9) is or are arranged at the wall (13) of the swirl chamber (3).

Abstract: A method of operating a stationary internal combustion machine comprising a compressor device of variable compressor geometry which compresses gas fed to the internal combustion machine, and a throttle device which is connected downstream of the compressor device and with which the amount of compressed gas fed to the internal combustion machine is variable, wherein the internal combustion machine is regulated by way of the actuation of at least two adjusting members, wherein the internal combustion machine is regulated to a—preferably substantially constant—engine regulating value, and upon a deviation in the engine regulating value from a reference value the amount of gas fed to the internal combustion machine is altered by the actuation of the throttle device as the first adjusting member and by the variation in the geometry of the compressor device as the second adjusting member so that the engine regulating value is re-set to the reference value.

Abstract: An ignition device with a laser light generating device for the coupling of laser light into a combustion chamber of the internal combustion engine, wherein the laser light generating device is configured to couple at least dichromatic laser light into a combustion chamber of an internal combustion engine.

Abstract: A method of operating a stationary internal combustion machine (1), in particular a gas engine, comprising a compressor device (2) which compresses gas (5, 6) fed to the internal combustion machine (1), and a throttle device (7) which is connected downstream of the compressor device (2) and with which the amount of compressed gas (5, 6) fed to the internal combustion machine is variable, wherein the compressor device (2) is operated by way of an exhaust gas turbine (3) of variable turbine geometry, wherein the internal combustion machine (1) is regulated to a substantially constant engine regulating value by way of the actuation of at least two adjusting members, wherein upon a deviation in the engine regulating value from a reference value the amount of gas fed to the internal combustion machine (1) is altered by the actuation of the throttle device (7) as the first adjusting member and by the variation in the geometry of the exhaust gas turbine (3) as the second adjusting member so that the engine regulatin

Abstract: A laser ignition arrangement for an internal combustion engine, in particular for a gas Otto engine, comprising at least one pump light source (1) and at least one laser resonator (2) which is longitudinally pumped by the pump light source (1) and in particular passively Q-switched, and in particular comprising at least one coupling-in optical means (3) for coupling pump light (4) of the pump light source (1) into the laser resonator (2), wherein preferably at a focus (6) of the coupling-in optical means (3), a first beam diameter (12) of the pump light (4) which is introduced or which is to be introduced into the laser resonator (2), measured at a pump light intensity (I0,6) of 60% of the maximum pump light intensity (Imax), is at least 80%, preferably at least 85% of a second beam diameter (13), measured at a pump light intensity (I0,135) of 13.5% of the maximum pump light intensity (Imax).

Abstract: A laser ignition arrangement for an internal combustion engine (1) comprising a laser light generating device (3) and a combustion chamber window (7, 7?) through which laser light (5) for ignition of a combustible mixture can be introduced into a combustion chamber (11) of the internal combustion engine (1), wherein the laser light generating device (3) is suitable for introducing laser light of an intensity (I) of at most 0.15 mJ/mm2 or at least 3 mJ/mm2 into the combustion chamber (11), wherein the intensity (I) can be attained on a side of the clean combustion chamber window (7, 7?), which side is towards the combustion chamber (11).

Abstract: An apparatus for the distribution of laser light from a light source (3) and/or an entry light waveguide (1) on to at least two and in particular a plurality of exit light waveguides (2), wherein the apparatus has at least one light deflection element (4) which rotates, preferably continuously, in operation of the apparatus and which is provided for deflecting laser light out of the entry light waveguide (1) and/or the light source (3) in the direction of the exit light waveguides (2).

Abstract: Internal combustion engine with at least one cylinder, in which a fuel/air mixture can be compressed in a cylinder by a piston, the temperature of the fuel/air mixture in the combustion chamber being able to be brought at least to over roughly 80% and up to at most roughly 98% of the spontaneous ignition temperature of the fuel/air mixture and the ignition of the combustion being time-controlled through the introduction of laser light into the combustion chamber.

Abstract: An internal combustion engine has a laser light generating device. The laser light generating device is suitable for delivering laser light with a transverse mode structure which varies in respect of time.

Abstract: Lens for a laser-ignited internal combustion engine, with an at least approximately spherical basic shape, the lens (1) having an aspherical region (3) which is formed so that the lens (1) is at least approximately free from spherical aberration.