Abstract: The invention relates to a method for controlling the power transmission in a drive train, in particular of a motor vehicle, wherein the drive train comprises: an internal combustion engine which drives an output shaft at an engine speed and generates an exhaust gas stream; an exhaust gas turbine which is arranged in the exhaust gas stream and is engaged in or can be switched to a drive connection with the output shaft in order to transmit the drive power of the exhaust gas turbine to the output shaft; a compressor which is arranged in a fresh air stream supplied to the internal combustion engine and which is engaged in and driven by a drive connection with the exhaust gas turbine in order to charge the internal combustion engine at a predefined charging pressure; a power-controlled hydrodynamic clutch, which is arranged in the drive connection between the exhaust gas turbine and the output shaft and by means of which drive power of the exhaust gas turbine is transmitted to the output shaft depending on the p

Abstract: The invention relates to a turbo-compound system, in particular of a motor vehicle having an internal combustion engine which has an output shaft; having an exhaust-gas power turbine which is arranged in the exhaust-gas flow of the internal combustion engine and has an impeller wheel which is mounted fixedly on a turbine shaft so as to rotate with it; the exhaust-gas power turbine is drive-connected via a step-up gear mechanism to the output shaft of the internal combustion engine, in order to transmit drive power via the step-up gear mechanism to the output shaft; having a hydrodynamic coupling which has an impeller and a turbine wheel which form, with one another, a toroidal working chamber which can be filled with working medium via an inlet, in order to transmit torque hydrodynamically from the impeller to the turbine wheel; wherein at least one gearwheel of the step-up gear mechanism is lubricated with working medium of the hydrodynamic coupling, and the step-up gear mechanism is arranged in the drive co

Abstract: The invention concerns an exhaust-gas power-recovery turbine for a turbo compound system, in particular of a motor vehicle, including: a turbine shaft, which at the first end thereof or in the area of the first end carries a rotor to be impinged by the exhaust gas flow of an internal combustion engine, in order to convert exhaust gas energy into drive power; and which at the second end thereof carries a pinion, which is designed to be brought into a driving connection with the crankshaft of the internal combustion engine, in order to transmit the drive power to the crankshaft. The invention is characterised in that that the turbine shaft is supported in the area of the rotor by means of a radial plain bearing and in the area of the pinion by means of a radial rolling-element bearing.

Abstract: The invention concerns a cooling system, in particular a motor vehicle cooling system comprising a cooling circuit, in which a cooling medium is circulated by means of a cooling medium pump; wherein the cooling medium pump or another work machine is driven by means of a drive machine via a hydrodynamic coupling, comprising a pump impeller driven by the drive machine and a turbine wheel driving the cooling medium pump, which together form a toroidal working chamber which can optionally be filled with working medium; wherein the working medium is the cooling medium; a compensating container, comprising a space filled with cooling medium and an air chamber above a cooling medium level in the space filled with cooling medium. The invention is characterised in that the working chamber of the hydrodynamic coupling is always connected to the air chamber or can optionally be connected to the latter via an air-conducting connection.

Abstract: The invention relates to a drivetrain, in particular for motor vehicles, having an internal combustion engine, comprising an output shaft; having a turbocharger, comprising an exhaust gas turbine, which is situated in the exhaust gas stream of the internal combustion engine, and a compressor driven by the exhaust gas turbine, which is situated in an air channel leading to the internal combustion engine in order to compress air for the internal combustion engine; the exhaust gas turbine additionally having a drive connection to an auxiliary system or to the output shaft of the internal combustion engine or being switchable into such a connection, in order to transmit drive power alternately or simultaneously from the exhaust gas turbine to the compressor or the output shaft and the auxiliary system; and a hydrodynamic clutch being situated in the additionally provided drive connection, comprising a bladed primary wheel and a bladed secondary wheel, which implement a working chamber with one another, which i

Abstract: A method for control of a pressurized air supply system for a motor vehicle. In a supply condition, the air compressor is driven by the drive motor and connected to a compressed air system of the motor vehicle such that compressed air is supplied to the compressed air system. In a non-supply condition, the compressor is not driven and/or connected to the compressed air system. The switching of the supply or non-supply condition results from a comparison of at least one switch pressure value with a pressure in the compressed air system and the topography of the stretch of road on which the vehicle is travelling, which includes the profile of the path which the vehicle must cover within a period of time and/or path distance to a given destination.

Abstract: An apparatus comprising a turbocompound system for an internal combustion engine comprises a shaft driven by a turbine, an output shaft and a transmission unit connecting the shaft. The transmission unit is arranged in a housing and comprises at least one hydrodynamic coupling. The drive apparatus is provided in accordance with the invention with at least one conveying means, by means of which lubricating oil or a mixture containing lubricating oil can be extracted by suction from the housing.

Abstract: The invention relates to a method for controlling the power transmission in a drive train, in particular of a motor vehicle, wherein the drive train comprises: an internal combustion engine which drives an output shaft at an engine speed and generates an exhaust gas stream; an exhaust gas turbine which is arranged in the exhaust gas stream and is engaged in or can be switched to a drive connection with the output shaft in order to transmit the drive power of the exhaust gas turbine to the output shaft; a compressor which is arranged in a fresh air stream supplied to the internal combustion engine and which is engaged in and driven by a drive connection with the exhaust gas turbine in order to charge the internal combustion engine at a predefined charging pressure; a power-controlled hydrodynamic clutch, which is arranged in the drive connection between the exhaust gas turbine and the output shaft and by means of which drive power of the exhaust gas turbine is transmitted to the output shaft depending on the p

Abstract: A method for regulating a compressed air supply system of a motor vehicle, the system having a driving engine for driving the motor vehicle, which can be switched via a switchable hydrodynamic coupling to a driven connection with an air compressor, so that the air compressor feeds a compressed air system via an air delivery side.

Abstract: The invention concerns a turbo compound system, including a crankshaft driven by an internal combustion engine; a blowdown turbine arranged in the exhaust line of the internal combustion engine; a hydrodynamic clutch, including a driving torus and a driven torus, which form with each other a working chamber that is fillable or filled with working fluid; where the driven torus of the hydrodynamic clutch is arranged on a shaft on the crankshaft side, which is in drive connection with the crankshaft and is geared up relative to the crankshaft; and where the driving torus of the hydrodynamic clutch is arranged on a shaft on the blowdown turbine side, which is in drive connection with the blowdown turbine, and where a rotary pump is arranged on the shaft on the crankshaft side or on the shaft on the blowdown turbine side, whose impeller is driven by this shaft.

Abstract: The invention relates to a drivetrain, in particular motor vehicle drivetrain, with a combustion engine having a drive output shaft and which produces a hot exhaust-gas flow; with a turbocompound system comprising: an exhaust-gas turbine which is arranged in the exhaust-gas flow such that it can be impinged upon by exhaust gas and which converts exhaust-gas energy into propulsive energy, wherein the exhaust-gas turbine is drive-connected, or can be switched so as to be drive-connected, to the output shaft of the internal combustion engine and also drives a turbocompressor or positive-displacement compressor by means of which the internal combustion engine is charged on the fresh-air side; with a compressed air system, comprising: an air compressor which can be driven by means of the combustion engine or an additional motor and which feeds compressed air into at least one compressed-air circuit or a compressed-air line.

Abstract: The invention relates to a turbine, in particular an exhaust gas power turbine for a turbo-compound system, comprising a drive shaft, which carries a turbine wheel on its first end or in the area of the first end, which is intended for positioning in an exhaust gas stream of an internal combustion engine or another medium stream containing thermal and/or pressure energy, in order to convert exhaust gas energy or energy of the medium stream into drive power, and which carries a gearwheel on its second end or in the area of the second end, which is designed for the purpose of being placed in a drive connection with the crankshaft of the internal combustion engine, the drive shaft being mounted, at least in the area of its second end adjacent to the gearwheel, using a floating bush in a housing, which forms an outer oil-filled bearing gap in relation to the housing and an inner oil-filled bearing gap in relation to the drive shaft and is relatively rotatable in relation to the housing and the drive shaft.

Abstract: The invention relates to a drivetrain, in particular for motor vehicles, having an internal combustion engine, comprising an output shaft; having a turbocharger, comprising an exhaust gas turbine, which is situated in the exhaust gas stream of the internal combustion engine, and a compressor driven by the exhaust gas turbine, which is situated in an air channel leading to the internal combustion engine in order to compress air for the internal combustion engine; the exhaust gas turbine additionally having a drive connection to an auxiliary system or to the output shaft of the internal combustion engine or being switchable into such a connection, in order to transmit drive power alternately or simultaneously from the exhaust gas turbine to the compressor or the output shaft and the auxiliary system; and a hydrodynamic clutch being situated in the additionally provided drive connection, comprising a bladed primary wheel and a bladed secondary wheel, which implement a working chamber with one another, which i

Abstract: The invention relates to a hydrodynamic coupling having a primary blade wheel and a secondary blade wheel. The primary wheel and the secondary wheel together form a working chamber that can be filled with a working medium and are mounted in such a way that they can rotate in relation to each other. A bearing is inserted, at least indirectly, between the primary impeller and the secondary impeller, said bearing absorbing the radial forces and/or axial forces acting between the blade wheels. The inventive hydrodynamic coupling is characterized in that the bearing is constructed as a sliding bearing, a film of bearing fluid subjected to hydrostatic pressure being formed between the bearing components moving in relation to each other during the operation of the hydrodynamic coupling, and the pressure of the bearing fluid is dependent on the pressure of the working medium built up in the working chamber.

Abstract: A turbo-compound system having a crankshaft driven by an internal combustion engine; having an exhaust gas turbine arranged in the flow of exhaust gas of the internal combustion engine; having a hydrodynamic coupling, having a primary impeller and a secondary impeller, together forming a working chamber which may be filled or is filled with a working medium, which is arranged in a driven connection between the crankshaft and the exhaust gas turbine in such a way that, when the working chamber of the hydrodynamic coupling is filled, for the exhaust gas turbine driven by the exhaust-gas flow, drive power is transmitted from the exhaust gas turbine to the crankshaft.

Abstract: A method for matching an actual characteristic curve or diagram that characterizes the operating mode of a hydrodynamic component to a set characteristic curve or diagram is provided. The method includes a set characteristic curve or diagram of the hydrodynamic component is stored in a writable/readable memory storage unit a set manipulated variable being assigned to each operating point; the current actual characteristic curve is determined from the operating parameters that characterize the individual operating states and, for each operating point, is compared with the given set characteristic curve or diagram, a correction of the set manipulated variable being carried out for the respective operating point in the event of a deviation beyond a preset range of tolerances; and, in the event a deviation does not occur, the current set value is set as the new set value and read into the memory storage unit as a set manipulated variable.

Abstract: The invention relates to a hydrodynamic coupling comprising an impeller (1), which propels a drive machine and a turbine wheel (2), which propels a drive machine. The turbine wheel and its rotationally fixed coupling shell (4) form a coupling housing (5). A centrifugal force valve (6) comprising a valve body (6.1) that is actuated using centrifugal force, is located in the outer peripheral region of the coupling housing, said valve being mounted in an outlet (7) for working medium from the working chamber, in such a way that the valve body essentially or completely seals the outlet when the centrifugal force valve is closed and releases said outlet when the valve is open, allowing the working medium to flow out. The valve body of the centrifugal force valve is supplied with working medium exclusively on its radial inner face and its radial outer face is subjected exclusively to the action of an elastic, mechanical pressure element (6.2), which acts in the closing direction of the centrifugal force valve.

Abstract: A hydrodynamic coupling that has a primary impeller and a secondary impeller. A drive shaft drives the primary impeller. The drive shaft has a first end, a second end, a central axis, and a prespecified segment between the first and second ends. There is at least one supply channel for introducing a working medium to the toroidal working chamber. The at least one supply channel is formed in the drive shaft at the central axis along the prespecified segment. The plurality of evacuation channels evacuates the working medium from the toroidal working chamber, and the plurality of evacuation channels is formed in the drive shaft radially about the at least one supply channel. The plurality of evacuation channels is formed from the first end up to at least the second end with the first end being located a predetermined distance from the toroidal working chamber.

Abstract: The invention relates to a hydrodynamic assembly with a hydrodynamic retarder comprising a rotor and a stator; with a hydrodynamic clutch, comprising a primary wheel and a secondary wheel; the rotor and the stator of the retarder as well as the primary wheel and the secondary wheel of the clutch respectively form with each other a torus-shaped working chamber; the rotor of the retarder and the secondary wheel of the clutch are joined to each other in torsion-proof manner, in axial direction in series in a back to back arrangement; the primary wheel has a drive connection to a first input shaft; the rotor and the secondary wheel have a drive connection to a second input shaft; The inventive hydrodynamic assembly is characterized in that the rotor and the secondary wheel can be moved jointly in axial direction between a first position, in which the secondary wheel is opposite the primary wheel at a minimum axial distance and the rotor is opposite the stator at a maximum axial distance, and a second po

Abstract: The invention relates to a method for regulating the maximum speed of a working machine (12), in particular an air compressor in a vehicle. Said working machine is driven by means of a motor (10), using a hydrodynamic coupling (11), which comprises a working chamber (3) that is partially or fully filled with a working medium for transmitting a torque from a drive side (11.1) equipped with an impeller (1) to a driven side (11.2) equipped with a turbine wheel (2).