Abstract: A hydrodynamic clutch having an input side and an output side, the rotational motions of which are coupled to one another with a hydraulic fluid. A method for determining the degree of filling of the hydrodynamic clutch with fluid including steps of periodically sensing a fluid temperature of the hydraulic fluid, determining the thermal output supplied to the clutch on the basis of the temperature, determining a lambda value on the basis of the thermal output and determining the degree of filling on the basis of the lambda value.

Abstract: A hydrodynamic coupling contains a pump wheel and a turbine wheel, which are rotatably mounted about a common axis of rotation. The pump wheel and the turbine wheel each carry a circumferential channel about the axis of rotation, so that the channels axially facing one another limit a toroidal working space that can be filled with a fluid. The pump wheel and the turbine wheel each have radial blades which subdivide the channels into blade chambers. Here, the turbine wheel has a first blade chamber and a second blade chamber, wherein contours of the channel in the radial direction are distinct in the two blade chambers.

Abstract: A hydrodynamic clutch having an input side and an output side, the rotational motions of which are coupled to one another with a hydraulic fluid. A method for determining the degree of filling of the hydrodynamic clutch with fluid including steps of periodically sensing a fluid temperature of the hydraulic fluid, determining the thermal output supplied to the clutch on the basis of the temperature, determining a lambda value on the basis of the thermal output and determining the degree of filling on the basis of the lambda value.

Abstract: The invention concerns a hydrodynamic coupling, having a pump wheel and a turbine wheel, which form together a toroidal working chamber which can be filled with working medium; with a closed working medium circuit, which extends from the working chamber via a working chamber outlet, an external circuit branch and a working chamber inlet back into the working chamber; with a storage chamber positioned outside the working chamber and outside the closed working medium circuit, for receiving the working medium evacuated from the working chamber for reducing the filling level of the working chamber, which is connected via a connection for conveying the working medium outside the working chamber to the closed working medium circuit. The invention is characterized in that the storage chamber is designed as a confined chamber which is pressure-tight to the environment, having a control pressure port so as to forcibly displace the working medium in the storage chamber with a control pressure.

Abstract: The invention concerns a compression device fitted with a drive unit; with a compressor driven by the drive unit, which compresses a gaseous compression medium; with a cooling device, comprising at least one fan wheel, which cools the compression medium; the fan wheel is in drive connection with the drive unit or a second drive unit additionally provided, in order to be thereby driven in rotation. The invention is characterized in that a hydrodynamic clutch is arranged in the drive connection, via which the fan wheel is driven hydrodynamically, and the drive power transmission of the hydrodynamic clutch can be modified in operation by pressurizing the hydrodynamic clutch with a control pressure medium, wherein the compression medium is the control pressure medium at the same time.

Abstract: The invention relates to a closure with a thermal safety function for a hydrodynamic or hydraulic machine, in particular a hydrodynamic clutch, designed for use in a housing of the hydrodynamic or hydraulic machine which holds a working medium, wherein the closure has a closure body for screwing or inserting into the housing or mounting on the housing in some other way; the closure body has a passage into which a closure core is introduced, which closure core is connected, by means of a melting element which can be melted on at a predefined temperature, directly to the closure body or to an intermediate element introduced in a seal-forming fashion in the closure body, in such a way that the passage is sealed off so as to prevent the working medium from passing through. The invention is characterized in such a way that the closure core has a blind bore or a blind hole which is open with respect to the working space, with the result that working medium can flow into the closure core.

Abstract: The invention relates to a hydrodynamic clutch having constant or variable filling of work medium having a pump wheel, comprising pump wheel blading, and having a turbine wheel, comprising turbine wheel blading; pump wheel and turbine wheel forming a toroidal work space with one another, which is fillable with the work medium for torque transmission; having a storage space for receiving work medium from the work space, the storage space having a connection which conducts work medium to the work space; the work medium can be conducted from the storage space into the work space to increase the transmittable torque and from the work space into the storage space to reduce the transmittable torque. The hydrodynamic clutch is characterized in that the ratio of the volume of the work space to the installation volume of the hydrodynamic clutch is greater than 0.

Abstract: The invention concerns a compression device fitted with a drive unit; with a compressor driven by the drive unit, which compresses a gaseous compression medium; with a cooling device, comprising at least one fan wheel, which cools the compression medium; the fan wheel is in drive connection with the drive unit or a second drive unit additionally provided, in order to be thereby driven in rotation. The invention is characterised in that a hydrodynamic clutch is arranged in the drive connection, via which the fan wheel is driven hydrodynamically, and the drive power transmission of the hydrodynamic clutch can be modified in operation by pressurising the hydrodynamic clutch with a control pressure medium, wherein the compression medium is the control pressure medium at the same time.

Abstract: The invention concerns a hydrodynamic coupling, having a pump wheel and a turbine wheel, which form together a toroidal working chamber which can be filled with working medium; with a closed working medium circuit, which extends from the working chamber via a working chamber outlet, an external circuit branch and a working chamber inlet back into the working chamber; with a storage chamber positioned outside the working chamber and outside the closed working medium circuit, for receiving the working medium evacuated from the working chamber for reducing the filling level of the working chamber, which is connected via a connection for conveying the working medium outside the working chamber to the closed working medium circuit. The invention is characterized in that the storage chamber is designed as a confined chamber which is pressure-tight to the environment, having a control pressure port so as to forcibly displace the working medium in the storage chamber with a control pressure.

Abstract: The invention relates to a hydrodynamic coupling having two blade wheels, namely, an outer wheel and an inner wheel, The hydrodynamic coupling also has a coupling shell. The invention provides that the inner wheel and the coupling shell each have one hole and the holes are situated on the hydrodynamic coupling and can be moved into positions that are aligned with one another when the inner wheel and the coupling shell are rotated. The hole of the coupling shell is larger than the hole of the inner wheel. A measuring pin for passing through the two holes.

Abstract: The invention relates to a closure with a thermal safety function for a hydrodynamic or hydraulic machine, in particular a hydrodynamic clutch, designed for use in a housing of the hydrodynamic or hydraulic machine which holds a working medium, wherein the closure has a closure body for screwing or inserting into the housing or mounting on the housing in some other way; the closure body has a passage into which a closure core is introduced, which closure core is connected, by means of a melting element which can be melted on at a predefined temperature, directly to the closure body or to an intermediate element introduced in a seal-forming fashion in the closure body, in such a way that the passage is sealed off so as to prevent the working medium from passing through. The invention is characterized in such a way that the closure core has a blind bore or a blind hole which is open with respect to the working space, with the result that working medium can flow into the closure core.

Abstract: The invention relates to a hydrodynamic clutch having constant or variable filling of work medium having a pump wheel, comprising pump wheel blading, and having a turbine wheel, comprising turbine wheel blading; pump wheel and turbine wheel forming a toroidal work space with one another, which is fillable with the work medium for torque transmission; having a storage space for receiving work medium from the work space, the storage space having a connection which conducts work medium to the work space; the work medium can be conducted from the storage space into the work space to increase the transmittable torque and from the work space into the storage space to reduce the transmittable torque. The hydrodynamic clutch is characterized in that the ratio of the volume of the work space to the installation volume of the hydrodynamic clutch is greater than 0.

Abstract: The invention relates to a hydrodynamic coupling having two blade wheels, namely, an outer wheel and an inner wheel. The hydrodynamic coupling also has a coupling shell. The invention provides that the inner wheel and the coupling shell each have one hole and the holes are situated on the hydrodynamic coupling and can be moved into positions that are aligned with one another when the inner wheel and the coupling shell are rotated. The hole of the coupling shell is larger than the hole of the inner wheel. A measuring pin for passing through the two holes.

Abstract: The invention relates to a high output machine unit; with a drive system provided with an output shaft; with a machine provided with a drive shaft; with a fillable and dischargeable hydrodynamic coupling arranged between the drive system and the machine; with a mechanical coupling arranged parallel to the hydrodynamic coupling; one half of the mechanical coupling can be connected non-rotationally to the output shaft of the drive system; the other half of the mechanical coupling can be connected non-rotationally to the drive shaft of the machine.

Abstract: A method for the supplying bearing elements in a hydrodynamic coupling: The coupling includes a primary wheel and a secondary wheel, which together form a working area capable of being filled with operating fluid. An operating fluid system having a direct circulation connecting at least one outlet from the working area to an inlet into the working area. A filling line connectable at least indirectly to the operating fluid source. An emptying line connecting the outlet at least indirectly to the operating fluid source. The filling line and the emptying line are connected via the direct circulation to the inlet and the outlet, together with a lubricant supply system, which is capable of connection to the filling line, and which is supplied with lubricant during all operating modes. At least during the filling mode, the supply of lubricant is via the filing line that is capable of connection to the operating fluid source.

Abstract: A hydrodynamic machine with a turbo coupling comprising primary and secondary wheels together forming a torus shaped workspace, which can be filled with a working medium. A temperature-sensing device installed in a component, which rotates when the machine is operating, and sending a temperature —dependant signal. A stationary monitoring device connected to the temperature sensor in a remote query connection, and having means for creating a temperature measurement correction depending on the heating rate progression of the sensed temperature.

Abstract: The invention relates to a hydrodynamic machine, in particular a turbo coupling, comprising: a primary wheel; a secondary wheel; the primary wheel and the secondary wheel together form a torus-shaped workspace, which can be filled with a working medium; a temperature recording device, which is installed in a component that rotates when the machine is in operation, and sends a temperature-dependent signal. The hydrodynamic machine, in particular the turbo coupling, according to the invention is characterized in that the signal comprises information for determining the absolute temperature of the working medium and/or a predetermined reference point in the rotating component.

Abstract: The hydrodynamic coupling includes a pump blade wheel and a turbine blade wheel together forming at least one toroidal operating space capable of receiving an operating medium. The housing at least partially in an axial direction contains the pump blade wheel and forms an intermediate space at least with the pump blade wheel. The pump blade wheel defines at least one connection channel between the toroidal operating space and the intermediate space, the connection channel having at least one directional component that is oriented essentially tangentially to the contour of the circulation of the operating medium in the operating state between the pump blade wheel and the turbine blade wheel. The connection channel provides a partial flow of operating medium in the operating space, providing a rinsing effect for deposits collected on the housing in the intermediate space.

Abstract: The invention relates to a hydrodynamic clutch (1) comprising at least two impellers, as outer wheel (3), and an inner wheel (3). The inner wheel is equipped with an integrated synchronizer clutch (2) and is enclosed by a clutch shell (4) that is coupled to said outer wheel. The invention is characterized in that the clutch elements (6.1, 6.2) are formed by the inner wheel and by the clutch shell. Said inner wheel comprises at least two segments (8.1, 8.2, 8.3) that are displaceably mounted in a radial direction.