Abstract: A hydrodynamic clutch having a pump and turbine and a case wherein a collection bath is provided underneath the case for the collection of work medium being discharged from the case vent openings and in which the case is immersed. There is in the collection bath at least one drainage opening with a drainage flange which is positioned above the floor of the collection bath with a predetermined clearance distance from the bottom. The case is immersed so far in the collection bath that it reaches into an area underneath the drainage flange.

Abstract: A method for optimizing the operating mode of a hydrodynamic component integrated into a drive train of a vehicle, using a regulating or control device associated with the component. A set characteristic curve or a set characteristic diagram is stored in a memory unit for a hydrodynamic component; an actual value of at least one variable at least indirectly characterizing an operating point is determined for each transmission process; and the actual value is compared with the set value from the set characteristic diagram. If the actual value deviates from the set value, the manipulated variable for the operating point in question is modified and stored as a new set manipulated variable for said operating point.

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, comprising 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 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 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: The invention relates to a method for control of a pressurised air supply system for a motor vehicle (10), said system comprising a drive motor (1) for driving the motor vehicle, which drives an air compressor (3) by means of a drive connection (2), or said drive connection for driving the air compressor may be switched on. Said method comprises the following method steps: in a supply condition, the air compressor is driven by the drive motor and connected with the air supply side (3.

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 concerns a hydrodynamic clutch with a pump wheel; with a turbine wheel; the pump wheel and the turbine wheel combine to form a work chamber which can be filled with work medium for the transfer of torque from the pump wheel onto the turbine wheel; with a case which features one or several vent openings for the drainage of work medium from the work chamber and the case (3). The hydrodynamic clutch, according to the invention, is characterized by the following features: a collection bath is provided underneath the case for the collection of work medium being discharged from the vent openings and in which the case is immersed, whereby there is designed to be in the collection bath at least one drainage opening with a drainage flange which is positioned above the floor of the collection bath with a predetermined clearance distance from the bottom and the case is immersed so far in the collection bath that it reaches into an area underneath the drainage flange.

Abstract: The invention relates to 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, comprising 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. The turbo-compound system according to the invention is characterized in that a switching means is provided for reversing the direction of rotation of the primary impeller or of the secondary impeller of the hydrodynamic coupling.

Abstract: The invention relates to a drive train, comprising an internal combustion engine, an exhaust gas turbine, arranged in the flow of exhaust of the internal combustion engine, a crankshaft driven by the internal combustion engine, switchably connected by means of a hydrodynamic coupling to the exhaust gas turbine in driven connection such that the crankshaft is driven by the turbine, said hydrodynamic coupling comprising a primary impeller and a secondary impeller which together form a working chamber which may be filled with a working medium for torque transfer, the primary impeller being in driven connection with the exhaust gas turbine; the secondary impeller is in driven connection with the crankshaft; the primary impeller may be mechanically braked and locked in relation to a rotational movement such that the hydrodynamic coupling assumes a hydrodynamic retarding function.

Abstract: The invention relates to a hydrodynamic coupling comprising a primary impeller and a secondary impeller, said impellers forming a toroidal working chamber. The primary impeller is located on a drive shaft or is integrated into said shaft. The invention is characterized in that the drive shaft is equipped with at least one supply channel for supplying a working medium to the working chamber and at least one evacuation channel for the simultaneous evacuation of the working medium from the working chamber.

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.