Abstract: The invention concerns a hydrodynamic coupling or a hydrodynamic brake with the following features: having an impeller and a turbine wheel, which together form a toroidal working chamber; the impeller sits on a driveshaft, and the turbine wheel sits on a driven shaft; having a housing, which encloses the impeller and, together with the impeller, forms a retaining space, which is conductively connected to the working chamber; having an inlet and an outlet for the filling and emptying of the working chamber; the driveshaft supports a dynamic pressure pump, which projects into the retaining space and which can be placed in rotation around the driveshaft (20); the dynamic pressure pump has an inlet in its radial outer region and is connected to the outlet by its radial inner region; a connection that is resistant to rotation can be produced and/or released again selectively between the dynamic pressure pump and the driveshaft.

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 invention relates to a hydrodynamic coupling. Said coupling comprises a primary wheel (2; 2.2; 2.3) and a secondary wheel (3; 3.2; 3.3), which together form a toroidal working chamber (4; 4.2; 4.3), a shell (5; 5.2; 5.3), which is connected in a rotationally fixed manner to the primary wheel and surrounds the secondary wheel in the axial direction and at least partially in the radial direction, thus forming an intermediate chamber (6; 6.2; 6.3) and at least one passage (8; 8.2; 8.3) that is located in the outer radial area of the shell. The invention is characterised by the following features: a second shell (10; 10.2; 10.3) coupled in a rotationally fixed manner to the first shell and/or the primary wheel, thus forming a second intermediate chamber (11; 11.2; 11.3); the second intermediate chamber is connected to the first intermediate chamber via the passage (13; 13.2; 13.

Abstract: The invention relates to a hydrodynamic coupling. Said coupling comprises a primary wheel (2; 2.2; 2.3) and a secondary wheel (3; 3.2; 3.3), which together form a toroidal working chamber (4; 4.2; 4.3), a shell (5; 5.2; 5.3), which is connected in a rotationally fixed manner to the primary wheel and surrounds the secondary wheel in the axial direction and at least partially in the radial direction, thus forming an intermediate chamber (6; 6.2; 6.3) and at least one passage (8; 8.2; 8.3) that is located in the outer radial area of the shell. The invention is characterized by the following features: a second shell (10; 10.2; 10.3) coupled in a rotationally fixed manner to the first shell and/or the primary wheel, thus forming a second intermediate chamber (11; 11.2; 11.3); the second intermediate chamber is connected to the first intermediate chamber via the passage (13; 13.2; 13.

Abstract: A hydrodynamic coupling having a constant quantity of working fluid, the coupling comprising, a pump wheel and a turbine wheel which together form a working space for a working fluid, a first storage chamber in fluid communication with the working space; and a valve for displacing working fluid between the working space and the storage chamber in response to an external control during operation of the coupling; and further comprising a housing which is connected, fixed for rotation, with the pump wheel, the housing including the first storage chamber, the first storage chamber being rotatable with the housing.

Abstract: The present invention relates to a hydrodynamic clutch in a drive system, notably a turbo compound system. The hydrodynamic clutch includes a pump impeller and a turbine impeller which together form a toroidal working space. The turbine impeller is joined to a take-off shaft in torsionally fixed fashion and the pump impeller bears, via a bearing arrangement, on the take-off shaft. Coordinated with the toroidal working space is an operating medium supply system. The operating medium supply system includes an operating medium supply space which is arranged radially interior to the toroidal working space and bounded in the axial direction by the bearing arrangement and the contour of the turbine impeller. A central operating medium supply duct is arranged in the take-off shaft and extends in the take-off shaft in the axial direction at least up into the area of the center plane of the clutch. At least one distributing duct connects the central operating medium supply duct to the operating medium supply space.

Abstract: An actuating device for a disk brake operates two brake shoes to move axially against the opposite sides of the brake disk. Each brake shoe is connected by a pin to a brake caliper half. Each brake caliper half is comprised of two levers spaced one above the other, with one end of the lever attached to the respective brake shoe for the brake caliper half, the other end of the lever attached to the respective side of the actuator for the caliper halves and all of the levers being pivotable about a common mounting pin disposed between the brake shoes and the actuator. The levers of the pairs alternate so that each brake caliper half is slightly offset along the mounting pin from the central plane of the brake. All levers are identically shaped. Each pair of levers is connected by a respective pin at the actuator and a respective pin at the brake shoe.