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: A drive system for a motor vehicle is provided. The drive system has a drive assembly, at least one power transmission unit that is coupled with the drive assembly and an electrical machine coupled at least indirectly with the drive assembly. The power transmission unit has at least one starting element with a hydrodynamic clutch and a bridging clutch. A rotor or armature of the electrical machine is arranged coaxially to the hydrodynamic clutch and can be coupled with it in a torsionally rigid manner.

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: The invention concerns a combined relief and positive surge protection device for operating fluid containers that can be put under pressure in operating fluid supply systems of hydrodynamic machines with a housing; with an inlet chamber that can be coupled to the inner space of the operating fluid container and an outlet chamber that can be coupled to a relief space; with a relief valve that comprises a valve component that is supported in the housing in such a way that it can be displaced, and a valve seat that is arranged stationary in the housing, whereby the valve seat is arranged in such a way that it, in cooperation with the valve component, blocks the connection between the inlet chamber and the outlet chamber; with an actuation mechanism that is assigned to the valve component; with a positive surge protection device comprising a positive surge plate that can be guided outside the housing on a guidance element that is connected to the valve component, whereby the guidance element contains, on its e

Abstract: A hydrodynamic retarder having a toroidal working chamber formed from a rotor impeller and a stator impeller. The stator impeller has a stator housing with a substantially ring-shaped evacuation channel formed in the stator housing. The stator impeller has a plurality of boreholes, which join the toroidal working chamber to the evacuation channel.

Abstract: The invention involves a process for controlling the rotational speed of a drive motor during a start-up period, in a drive train, containing at least one starter element that can be coupled to the drive motor, in a rotationally fixed manner, in the form of a hydrodynamic coupling, containing a primary blade wheel and a secondary blade wheel, which form together at least one toroid-shaped working space. According to the invention, the rotational speed of the drive motor is set as a function of the power that can be consumed by the hydrodynamic coupling. The consumable power can be controlled or regulated.

Abstract: A drive system for a motor vehicle is provided. The drive system has a drive assembly, at least one power transmission unit that is coupled with the drive assembly and an electrical machine coupled at least indirectly with the drive assembly. The power transmission unit has at least one starting element with a hydrodynamic clutch and a bridging clutch. A rotor or armature of the electrical machine is arranged coaxially to the hydrodynamic clutch and can be coupled with it in a torsionally rigid manner.

Abstract: A method for controlling the power consumption of a starting element (1) in the form of a hydrodynamic clutch (2). The clutch comprises an impeller (4) and a turbine wheel (5), which together form at least one toroidal working chamber (6) that can be filled with an operating medium, and is located in a drive train (3) with at least one other drive motor that can be coupled to the hydrodynamic clutch. The method is characterized in that the power consumption can be freely adjusted as a function of the volumetric efficiency of the hydrodynamic clutch and the method has the following characteristics: the supply or evacuation of the operating medium to or from the working chamber is influenced by the generation and introduction of a static superposition pressure in the closed rotating circuit; the operating medium is supplied or evacuated to or from the working chamber by the application of a superposition or influencing pressure to the operating medium level in the operating medium reservoir (40).

Abstract: The invention relates to a starter unit (1) comprising an input (E) which may be coupled to a drive input, an output (A) which may he coupled to a drive output, a starter element (2) in the form of a hydrodynamic coupling (3), a switchable clutch (7), comprising at least two clutch elements, which may be brought into frictional engagement, either directly or indirectly, by means of further transfer agents, being a first clutch element (10) and a second clutch element (11) each rotationally fixed to the input (E) and the output (A) respectively. The hydrodynamic coupling (3) and the switchable clutch (7) are arranged in a parallel fashion in two power branches (8,9) and may be activated individually or in common.

Abstract: An inductive miniature component for SMD-mounting with a coil support (1) formed of synthetic or ferrite material, in or on which is arranged at least one coil winding, whereby outwardly projecting connection pegs (1.1) are arranged on an outer side of the coil support and formed therewith as a single piece, each connection peg having several turns of an end (2.1) of a respective winding wire of a coil wire wound there around. A metallic wire winding (3.1) is disposed between the outer surface of the connection peg (1.1) and the winding wires (2.1), the metallic wire winding being comprised of an electrically conducting wire whose diameter is greater than the diameter of the winding wire and several turns of the metallic wire winding being directly wound on the connection peg (1.1).

Abstract: The invention relates to a hydrodynamic coupling (1), comprising two blade wheels—a pump wheel (2) and a turbine wheel (3)—which together form a toroidal working chamber (4); a pump wheel shell (6) which is rotationally fixed to the pump wheel (2) and which surrounds the turbine wheel (3) in an axial direction, hereby forming a first guiding channel or chamber (9) for the operating means; and a second guiding channel or chamber (12) for the operating means which opens out in the area of the inner diameter of the toroidal working chamber (6) or below the same. The first and second guiding channels or chambers (12) for the operating means may be used as a supply or discharge channel or chamber to or from the toroidal working chamber (4), respectively.

Abstract: The invention relates to a starter unit (1) comprising an input (E) which may be coupled to a drive input, an output (A) which may he coupled to a drive output, a starter element (2) in the form of a hydrodynamic coupling (3), a switchable clutch (7), comprising at least two clutch elements, which may be brought into frictional engagement, either directly or indirectly, by means of further transfer agents, being a first clutch element (10) and a second clutch element (11) each rotationally fixed to the input (E) and the output (A) respectively. The hydrodynamic coupling (3) and the switchable clutch (7) are arranged in a parallel fashion in two power branches (8,9) and may be activated individually or in common.

Abstract: The invention relates to a starter unit (1), comprising the following: an input (E) which may be coupled to a drive input; an output (A) which may be coupled to a drive output; a starter element (1) in the form of a hydrodynamic coupling comprising a pump wheel (4) and a turbine wheel (5) which together form a toroidal working chamber (6) and a pump wheel shell (10) which is coupled to the pump wheel (4) in a rotationally fixed manner; and a converter lockup clutch (7) comprising at least two clutch disks which may be brought into frictional functional engagement with each other, directly or indirectly, by means of further transmission means—a first clutch disk (8) and a second clutch disk (9). The first clutch disk (8) is rotationally fixed to the pump wheel shell (10) and the second clutch disk (9) is rotationally fixed to the turbine wheel (5).

Abstract: The invention relates to a method for controlling the power consumption of a starting element (1) in the form of a hydrodynamic clutch (2). Said clutch comprises an impeller (4) and a turbine wheel (5), which together form at least one toroidal working chamber (6) that can be filled with an operating medium, and is located in a drive train (3) with at least one other drive motor that can be coupled to the hydrodynamic clutch.

Abstract: An inductive miniature component for SMD-mounting with a coil support (1) formed of synthetic or ferrite material, in or on which is arranged at least one coil winding, whereby outwardly projecting connection pegs (1.1) are arranged on an outer side of the coil support and formed therewith as a single piece, each connection peg having several turns of an end (2.1) of a respective winding wire of a coil wire wound there around. A metallic wire winding (3.1) is disposed between the outer surface of the connection peg (1.1) and the winding wires (2.1), the metallic wire winding being comprised of an electrically conducting wire whose diameter is greater than the diameter of the winding wire and several turns of the metallic wire winding being directly wound on the connection peg (1.1).

Abstract: The invention involves a process for controlling the rotational speed of a drive motor during a start-up period, in a drive train, containing at least one starter element that can be coupled to the drive motor, in a rotationally fixed manner, in the form of a hydrodynamic coupling, containing a primary blade wheel and a secondary blade wheel, which form together at least one toroid-shaped working space. According to the invention, the rotational speed of the drive motor is set as a function of the power that can be consumed by the hydrodynamic coupling. The consumable power can be controlled or regulated.

Abstract: The invention relates to hydrodynamic machine, especially a hydrodynamic retarder, comprising a housing, components of the hydrodynamic machine being disposed within the housing, and a balancing element. The housing being constructed of a housing material having a coefficient of thermal expansion, which may be greater than a coefficient of thermal expansion at least one of the components. The balancing element having a coefficient of thermal expansion, which may be about that or greater than the coefficient of thermal expansion of the housing material. Also, the balancing element may be axially adjustable with respect to the housing to engage at least one of the components so as to equalize a gap during heating of the hydrodynamic machine.

Abstract: A deep drilling or deep well pump system includes a driving motor, a driven component connected to the driving motor, and a hydrodynamic retarder. The hydrodynamic retarder includes a rotor and stator blade wheel. The rotor blade wheel and the stator blade wheel together form a toroidal working space continuously filled with a working medium during operation of the deep drilling device or the deep well pump device. The rotor blade wheel is continuously connected at least indirectly to the driving motor. The blading of the rotor and stator blade wheel is designed so that, owing to the blade direction in the drive mode, the rotor blade wheel revolves freely. During the occurrence of restoring forces on the driven components, the retarder operates in a braking manner.

Abstract: A hydrodynamic brake has a rotor blade wheel and a stator blade wheel with oblique blades and which together form a toroidal work chamber. A series of quick blades are mounted on the stator blade wheel for controlling the flow of braking fluid between the blade wheels and thereby the degree of braking action. Each of said blades is mounted for rotation around a radial axis and can be swung uniformly by means of a common actuating device. In this basic position, the guide blades are parallel to the stationary blades to provide the maximum flow of braking fluid. In a "zero position" the blades are all in a plane normal to the axis of rotation of the brake, whereby they substantially block the flow of braking fluid within the work chamber. In order to control the braking action, the guide blades may be brought into any desired intermediate position.

Abstract: A hydrokinetic coupling has a primary vane wheel (11) and a secondary vane wheel (12), which define a toroidal working chamber. A shell (17) rotates with the primary vane wheel and envelops the secondary vane wheel. A constantly open and throttled outlet port (31) and an outlet valve (32) are disposed within the shell. The outlet valve can be closed by means of fluid pressure generated in a control line (33). In accordance with the invention, the control line has a fluid inlet (34) which is disposed in the shell interior. This is arranged at a determined distance from the axis of rotation of the coupling, so that fluid can only penetrate into the control line (33) if the slip in the coupling has assumed a specific minimum value. In this condition the outlet valve (32) is consequently closed, whereas it is opened at greater slip values.