Abstract: A fuel supply system includes a feeder fuel circuit configured to: (i) convey a first fuel in a direction of a mixing tank via a first pump device proceeding from a first fuel tank for a first fuel type; or (ii) convey a second fuel in the direction of the mixing tank via the first pump device proceeding from a second fuel tank for a second fuel type; and a booster fuel circuit configured to convey fuel via a second pump device proceeding from the mixing tank in a direction of at least one marine diesel engine, the booster fuel circuit having an automatic fine filter positioned upstream of or downstream of the at least one marine diesel engine and in the booster fuel circuit, respectively.

Abstract: A compressor arrangement has a common shaft, an axial compressor having at least a single-stage, and a radial compressor having at least single-stage. Assemblies of the, or each, axial compressor stage on the rotor side and assemblies of the, or each, radial compressor stage on the rotor side are attached to a common shaft (4). A ratio between a maximum diameter of the shaft (4) in the region of the axial compressor (2) and a minimum radial impeller seat diameter of the shaft (4) in the region of the radial compressor (3) is between 1.5 and 3.0.

Abstract: A transmission turbo machine integrates drive units and/or driven units into a machine train via a transmission. The integrated transmission substantially comprises a central large wheel with a shaft and a plurality of pinions with pinion shafts. The large wheel is operatively connected to the pinions, and the ends of the pinion shafts are operatively connected to a drive unit and/or driven unit. The shaft of the large wheel is operatively connected to a drive unit and/or driven unit. The invention is characterized in that the drive unit and/or driven unit is an axial expander which is mounted in a cantilevering manner in one or more stages.

Abstract: Method for operating a solar installation. The solar installation includes a solar field with direct evaporation accompanied by the generation of superheated live steam, a turbine for expanding the live steam, and a generator driven by the turbine for generating electrical energy. At least one valve is associated with the turbine by which the amount of live steam fed to the turbine is adjusted. The valve, or each valve, through which the amount of live steam fed to the turbine is adjusted such that an actual value of a live steam pressure occurring upstream of the turbine follows a reference value determined depending on a live steam temperature of the live steam upstream of the turbine.

Abstract: A turbomachine includes: a stator-side housing having: a plurality of stator-side guide vane supports fastened to the stator-side housing, stator-side guide vanes fastened to the stator-side guide vane supports, and axially spaced guide vane rings; and a rotor having a plurality of rotor-side moving blades. At least two guide vane supports are jointly fastened to and centered on a flange of the stator-side housing.

Abstract: A method for operating a system having a plurality of internal combustion engines coupled together such that then outputs are drawn off by a common load, a downstream individual exhaust gas aftertreatment device, in which the exhaust gas of a particular engine undergoes an individual exhaust gas aftertreatment, positioned downstream of each engine, or a common exhaust gas aftertreatment device, in which the exhaust gas undergoes a common exhaust gas aftertreatment, positioned downstream of to the engine. To regenerate an exhaust gas aftertreatment device, the drive output of one engine is reduced, the temperature of the exhaust gas is increased, and the drive output of a second engine is increased such that the drive output reduction is at least partially compensated for.

Abstract: An exhaust valve spindle for an exhaust valve in an internal combustion engine has a shaft and a valve disc at the lower end of the shaft, which valve disc at its upper surface has a seat area. The seat area is of a seat material comprising at least from 34.0 to 44.0% Cr, an aggregate amount of Nb and Ta in the range from at least 2.8 to 6.1%, from 0.3 to 2.0% Ti, at the most 0.2% Al, at the most 0.04% B, at the most 0.8% Fe, at the most 0.04% C, at the most 0.4% Si, and a balance of Ni, where the amount of Ti+Nb+0.5×Ta is in the range from 3.4 to 6.6%, and where the amount of Nb+0.5×Ta is less than 3.0% if the amount of Ti is larger than 1.5%.

Abstract: An exhaust gas retreatment system of an internal combustion engine includes a particle filter; and a sensor positioned, in a flow direction of the exhaust gas, downstream of the particle filter. The sensor is configured to measure the oxygen content and/or the NOx content in the exhaust gas downstream of the particle filter.

Abstract: An exhaust gas after-treatment system for an internal combustion engine, with a particle filter arranged downstream of an internal combustion engine for filtering soot out of the exhaust gas, and with an oxidation catalytic converter arranged upstream of the particle filter and downstream of the internal combustion engine for the oxidation of SO2 into SO3. The SO3 and/or precipitated H2SO4 serves for the oxidation of soot in the particle filter and thus for the regeneration of the particle filter.

Abstract: The oil side-flow cleaning device includes a heating unit (11) installed between the oil tank and the filter unit (10) so that, when the oil temperature is below a defined limit value, oil flows through the filter unit (10) in such a way as to bypass the filtering function and is heated; and so that, when the oil temperature is above the defined limit, oil flows through the filter unit (10) so as to be subjected to the oil filtering function. In addition or as an alternative, the oil side-flow cleaning device comprises a backflush unit including a backflush collecting tank (17) and a backflush nozzle (18), wherein, when the device is in backflush mode, oil flows through the filter medium (16) in a second, opposite direction as a function of the position of the backflush nozzle (18) relative to the filter medium (16).

Abstract: A method of monitoring check valves (6) arranged in gas feed lines (5) of a gas engine includes determining a temperature (S1) according to which a signal transmitter is activated (S3) when a detected temperature in a gas feed line (5) lies outside of a first designated target range; and transmitting (S3) a signal which carries information indicating the gas feed line (5) in which the temperature lying outside of the first target range was detected and/or the cylinder (10) with which the gas feed line (5) is associated.

Abstract: A compensator (10) of an exhaust gas aftertreatment system has a flow inlet-side connection flange (13) for connecting a flow inlet-side assembly (11), a flow outlet-side connection flange (14) for connecting a flow outlet-side assembly (12), a connection pipe (18) which extends between the two connection flanges (13, 14) and which has a bellows-shaped pipe portion (19), and an exhaust gas aftertreatment assembly (21) extending inside the connection pipe (18). The exhaust gas aftertreatment assembly (21) protrudes relative to the flow inlet-side connection flange (13) and/or relative to the flow outlet-side connection flange (14) such that it extends into the flow inlet-side connection assembly (11) and/or into the flow outlet-side assembly (12).

Abstract: A flow machine (1) has an outer housing (2) with an inner housing (6), particularly a guide blade carrier, arranged therein and a rotor shaft (10) which is situated in the latter, a cover (4; 8) which is fastened to the outer housing (2) and separates an inlet pressure (p1) in the interior of the outer housing (2) from an ambient pressure (pu) outside the outer housing, and a compensating piston seal (22) for sealing an outlet pressure (p2) in a work space, particularly compression space (16), defined between the rotor shaft (10) and the inner housing (6) against the inlet pressure (p1) in a noncontacting manner. The compensating piston seal (22) is fastened to the cover (4; 8).

Abstract: Radial compressor and method for the production of a radial compressor, wherein the radial compressor (1) has a compressor housing (10), a compressor shaft (20) which is rotatably supported in the compressor housing, at least one compressor impeller (14) which is arranged on the compressor shaft in the compressor housing, and an inlet insert (12) which is associated with a first impeller stage of the radial compressor in a fluid path in the compressor housing and which has a determined extension in a radial direction (RR) and in an axial direction (AR) of the radial compressor. The inlet insert defines a fluid inlet passage (13) which is arranged in the fluid path upstream of a first compressor impeller and leads to the latter, and the inlet insert is formed of material having a defined material structure, wherein the fluid inlet passage is formed as a subsequently introduced spatial interruption in a material cohesion of the material structure.

Abstract: A fluid-tight line feedthrough for introducing an electric conductor into a high-pressure chamber includes a housing and an electric conductor that passes through the housing. A ceramic insulator is positioned between the housing and the electric conductor. The ceramic insulator is divided into a first insulator segment facing the electric conductor and a second insulator segment facing the housing, thereby forming a conical separating plane. A fitting made of an electrically conductive material is positioned between the two segments, the fitting being connected to the two segments and to the housing.

Abstract: An exhaust valve spindle for an exhaust valve in an internal combustion engine has a shaft and a valve disc at the lower end of the shaft, which valve disc at its upper surface has a seat area. The seat area is of a seat material comprising at least from 34.0 to 44.0% Cr, an aggregate amount of Nb and Ta in the range from at least 2.8 to 6.1%, from 0.3 to 2.0% Ti, at the most 0.2% Al, at the most 0.04% B, at the most 0.8% Fe, at the most 0.04% C, at the most 0.4% Si, and a balance of Ni, where the amount of Ti+Nb+0.5×Ta is in the range from 3.4 to 6.6%, and where the amount of Nb+0.5×Ta is less than 3.0% if the amount of Ti is larger than 1.5%.

Abstract: Spark plug for an internal combustion engine, having a center electrode and a ground electrode arranged in radial direction around the center electrode, wherein an annular spark gap is formed between the center electrode and the ground electrode for igniting a fuel mixture by means of an electric ignition spark developing between the center electrode and the ground electrode, and wherein the ground electrode is contoured in such a way that particles reaching the region of the ground electrode can be removed from the spark gap under the influence of gravitational force.

Abstract: An exhaust gas turbocharger module and internal combustion engine outfitted therewith are disclosed. The exhaust gas turbocharger modules have an individual turbocharging assembly with a low-pressure exhaust gas turbocharger with a low-pressure turbine and a low-pressure compressor which have a common first turbocharger axis. A high-pressure exhaust gas turbocharger is provided with a high-pressure turbine and a high-pressure compressor which have a common second turbocharger axis extending perpendicular to the first turbocharger axis. The low-pressure turbine is connected downstream of the high-pressure turbine via an exhaust gas connection line, and the high-pressure compressor is connected downstream of the low-pressure compressor via a charge air connection line. A housing receives the low-pressure turbine, the high-pressure turbine and the exhaust gas connection line. The low-pressure compressor, the high-pressure compressor, and the charge air connection line are arranged outside of the housing.

Abstract: Spark plug for an internal combustion engine, having a center electrode and a ground electrode. A spark gap is formed between the center electrode and ground electrode for igniting a fuel mixture by an electric ignition spark developing between the center electrode and the ground electrode. The center electrode and the ground electrode are contoured such that a ratio of a surface of the center electrode and the ground electrode, which is available for development of the ignition spark to a wear volume when an ignition spark is generated, is increased in such a way that an enlargement of the spark gap occurring as a result of wear when an ignition spark is generated is minimized.

Abstract: A gas turbine combustion chamber has a housing (1), a flame tube (2) received therein, and a perforated plate (3) which at least partially surrounds the latter and which is fastened at both of its end faces (3.1, 3.2) to the housing.