Abstract: A compressor, in particular, of a turbomachine. The compressor comprises at least one blade ring and at least two ring segments, wherein the blade ring has at least two equally large ring segments. The compressor also comprises blades, which are arranged in the ring segments of the blade ring in such a way that a first number of blades is arranged in a first ring segment and a second number of blades is arranged in a second ring segment. The first number of blades is not equal to the second number of blades.

Abstract: A piston pump as a high-pressure fuel pump of a common rail system includes: a pump cylinder; a pump piston moveably mounted in a recess of the pump cylinder, the pump piston being moveable up and down in the recess; and a leakage groove arranged in the pump cylinder in a region of the recess, the leakage groove being coupled with a leakage line configured to discharge a fuel leakage. Between the pump cylinder and the pump piston a different size pairing clearance is formed in first and second portions of the pump cylinder.

Abstract: An apparatus for adjusting a length of a connecting rod of a cylinder of an internal combustion engine by installing and/or removing an intermediate plate between a connecting rod small end and a connecting rod shank of the connecting rod in the state of the connecting rod, with the following assemblies: a pivot guard for the connecting rod small end mountable to the connecting rod small end between the connecting rod small end and a cylinder liner of the cylinder; supports mountable to counterweights of the cylinder on opposite sides of the connecting rod; holders mountable to the supports and extend between the supports perpendicularly to the same; lifting cylinders mountable to the holders and lift the connecting rod small end relative to the connecting rod shank with unscrewed screw connections between connecting rod small end and connecting rod shank.

Abstract: A method for operating an internal combustion engine that is supplied with lubricating oil via an oil circuit. A measurement value of the total base number and/or a measurement value of the oxidation of lubricating oil currently used in the oil circuit for the lubrication is detected. Dependent on the established measurement value of the total base number and/or dependent on the established measurement value of the oxidation an exchange oil quantity for the oil circuit is determined. Currently used lubricating oil to an extent corresponding to the exchange oil quantity is removed from the oil circuit and new lubricating oil to an extent corresponding to the exchange oil quantity is supplied to the oil circuit.

Abstract: A supply system of a sealing system of a turbomachine, wherein the sealing system which are suppliable with a seal gas. The supply system comprises, for each sealing sub-system, four seal gas lines: a first seal gas supply line, via which process gas extracted from the turbomachine is suppliable as first seal gas to the respective sealing sub-system. A second seal gas supply line, via which second seal gas is suppliable to the respective sealing sub-system. A seal gas discharge line, via which the first seal gas and the second seal gas are dischargeable from the respective sealing sub-systems. A safety discharge line, which is closed during the normal operation and open in the event of a fault, to discharge at least one part of the first seal gas and of the second seal gas from the respective sealing sub-system via the same in the event of a fault.

Abstract: A sliding bearing for mounting a shaft with a bearing body and a bearing ring, which is formed from a multiplicity of tilting pads. The multiplicity of tilting pads and tiltably mounted on the bearing body and, with a sliding surface of the shaft, forms a lubricated bearing gap. At least one tilting pad and/or the bearing body has at least one functional structure located inside for forming a support region.

Abstract: A device for cooling a component to be cooled of a gas turbine/turbo machine having a hot-gas-impinged outer surface, a target surface of the component, and an integrated cooling passage, includes: an impingement cooling element arranged within the cooling passage, the impingement cooling element having plural impingement cooling bores; and a surface structure arranged on the target surface. The impingement cooling element is spaced apart from the target surface of the component and configured so as to conduct a cooling fluid as an impingement cooling jet is onto the target surface, such that the impingement cooling jet impinges on the surface structure.

Abstract: A cooling system for cooling a turbine blade with a cooling fluid via an internal flow passage formed in the turbine blade extending from an inlet to an outlet edge having a first passage section defining a first flow direction, a second passage section defining a second flow direction, a wall between the first and second passage section and a diverter, between the first and the second passage section. The wall in a region of the diverter forms a pier head which extends into the region of the first passage section and thereby reduces the flow cross section of the flow passage.

Abstract: A method for operating a common-rail fuel supply system of an internal combustion engine includes determining, dependent on an operating point of the engine, a set point rate of delivery of the high-pressure pumping device, and a set point pressure for the pressure storage system under high pressure, determining, dependent on a deviation between the set point pressure and an actual pressure in the pressure storage system, for a first part quantity of the throttle valves a closed-loop control portion for the position of the respective throttle valve, and activating the first part quantity of the throttle valves with the closed-loop control portion in addition to open-loop control for only the respective throttle valve of the first part quantity of the throttle valves. The, or each, throttle valve of a second part quantity of the throttle valves is exclusively activated with the open-loop control portion.

Abstract: A method for operating an internal combustion engine having at least one fuel injector that is activated for opening and closing via a solenoid valve of a respective fuel injector. Commencing with the activation of the fuel injector for opening, structure-borne sound waves emitted by the fuel injector over the time are detected by measurement. A structure-borne sound wave signal detected by measurement over the time is evaluated such that dependent on the amount of at least one maximum of the structure-borne sound wave signal and/or dependent on the number of the maximums of the structure-borne sound wave signal and/or in the presence of multiple maximums dependent on the time sequence and/or on the amount of the maximums, an operating state of the respective fuel injector is deduced.

Abstract: A piston of a cylinder of an internal combustion engine includes: an upper piston crown; a radially outer surface; a plurality grooves arranged on the radially outer surface; and a plurality of piston rings each positioned in a respective one of the grooves. The radially outer surface forms a top land arranged between the upper piston crown and an uppermost one of the grooves of the piston, and the top land has an axial length and a non-abrasion-proof coating.

Abstract: A charge air line of an internal combustion engine for supplying multiple cylinders of a cylinder bank of the internal combustion engine arranged in-line with charge air, has multiple charge air line sections. Emanating from each charge air line section a branch leads to a cylinder, the branch screwable to a cylinder head of the respective cylinder. The charge air line has an upstream end, via which charge air is feedable to the charge air line, and a downstream end, which is closed by an end cap. At the downstream end, the charge air line has a larger flow cross section than at the downstream end.

Abstract: A valve seat ring for a gas exchange valve of a cylinder of an internal combustion engine includes: a one-part or multi-part main body defining a through-flow opening; and a valve seat region arranged on a portion of the main body in the region of the through-flow opening, a surface of the valve seat region forming a valve seat for a valve body of the gas exchange valve. At least into the main body at least one recess is introduced, which is at least partly filled with a solder material.

Abstract: A rotor blade of a turbomachine, having a blade root, a blade airfoil which has a flow leading edge, a flow trailing edge, and flow-guiding surfaces extending between the flow leading edge and the flow trailing edge. The blade root and a radially inner section of the blade airfoil are made of a steel material, and a radially outer section of the blade airfoil is made of a more lightweight material.

Abstract: A method for operating an internal combustion engine wherein the internal combustion engine to be operated is supplied with lubricating oil via an oil circuit. A measurement value of a total base number and/or a measurement value of the viscosity of the lubricating oil currently used in the oil circuit for the lubrication is detected. Dependent on the established measurement value of the total base number and/or dependent on the established measurement value of the viscosity an exchange oil quantity for the oil circuit is determined. Currently used lubricating oil to an extent corresponding to the exchange oil quantity is removed from the oil circuit. New lubricating oil to an extent corresponding to the exchange oil quantity is supplied to the oil circuit.

Abstract: An internal combustion engine having at least one cylinder bank comprising multiple cylinders, each cylinder comprises a rocker arm box for accommodating rocker arms of a valve train, and each cylinder comprises a rocker arm cover pivotable relative to the rocker arm box. The rocker arm cover carries an ignition coil contactable with a spark plug via an extension extending through a protective tube between the cylinder head and the rocker arm box or the rocker arm cover. The rocker arm cover comprises a first portion with a first introduction aid, into which the protective tube is threaded during closure of the rocker arm cover and a second portion with a second introduction aid, into which the spark plug extension is threaded during closure of the rocker arm cover to automatically and self-centringly form an electrical contact between the spark plug extension and the ignition coil.

Abstract: A cold-box system includes a bulk gas tank, and a plurality of cold-box compartments operationally associated with the bulk gas tank. A cold-box apparatus includes a plurality of cold-box compartments operationally associated with a bulk gas tank. In one embodiment the cold-box compartments may be spaced apart from the tank aboard a waterborne platform. The system and apparatus provide redundancy regarding power aboard ship for the bulk gas tank.

Abstract: A turbomachine rotor having a radially inner hub element, a radially outer cover element, and rotor blades which extend between the hub element and the cover element and have rotor blade airfoils. The rotor blades are an integral component of the hub element and are bonded to the cover element according to a first alternative or are an integral component of the cover element and are bonded to the hub element according to a second alternative. The rotor blades have an integral socket adjacently to the cover element according to the first alternative or adjacently to the hub element according to the second alternative, and the rotor blades are bonded to the cover element according to the first alternative or to the hub element according to the second alternative via the socket.

Abstract: An internal combustion engine, in particular gas engine, with multiple cylinders, wherein in the cylinders a mixture of charge air and a gaseous fuel can be combusted, with a first turbocharger, in which exclusively the charge air can be compressed, and with a second turbocharger, in which exclusively the gaseous fuel can be compressed.