Abstract: In the case of a turbine wheel of a hydrodynamic torque converter having a lockup clutch, a radial flange of a hub is connected on its faces, in each case, by means of friction welding, with one radial flange respectively of an outer shell holding turbine blades and of a disk support which non-rotatably holds clutch disks.

Abstract: In a hydrodynamic torque converter, an axial abutment is arranged to support friction discs of a lock-up clutch and a clutch actuator working pressure chamber accommodating an axial piston so as to move with a friction disc carrier. Together with a second friction disc carrier, the friction disc carrier torsionally holds the friction discs in alternating sequence and is also located in a centripetal flow between a pump impeller outlet and a torque converter return conduit.

Abstract: An external shell of a pump wheel of a hydrodynamic flow unit manufactured from a sheet metal pressed part has, in its outlet-side region, an integral connecting sleeve with a cylindrical centering surface and a centered fastening surface extending thereform, and wherein the connecting sleeve is formed by upsettingly deforming, with the fastening surface being given a cylindrical shape and the centering surface being machined to its required diameter after upsettingly deforming.

Abstract: In a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, having a spoke for connecting a wheel hub to an external ring of the spoked drive wheel, the spoke cross-section is designed in the shape of a wing profile extending along a profile main axis. The profile main axis is transverse to the axis of rotation of the wheel. In this way, the deterioration in the characteristics of the torque converter is kept as small as possible in both power splitting operation and in operation without power splitting.

Abstract: A method for fastening by brazing (hard-soldering) the blades of a rotor for a hydrodynamic torque converter or the like, in which the blades are fastened with respect to an inner shell by means of lugs which are extended through corresponding slots in the inner shell and are thereafter bent over; in the assembly, the blades are fixed in the given position in an outer shell by one circumferential clamping band each whereafter the inner shell is assembled by extending the lugs through the slots thereof and the lugs are thereafter bent over; a wire ring of soldering or brazing material is then applied at least within the joint area of the outer clamping band with the outer shell and the assembly is then heated, preferably in a protective gas atmosphere to a temperature above the melting temperature of the soldering or brazing material; after the soldering or brazing material has run into the gaps and cracks the assembly is then cooled.

Abstract: A gripping roller free-wheeling device, with a springy support of the gripping rollers on cross tongues of a cage which is formed by two or more annular members disposed adjacent the gripping rollers; the tongues are stamped out of the sheet metal annular members and are bent off approximately at right angle to the plane of the annular members whereby the form and position of the stamping edge is such that the stamped-out openings which remain in one annular member approximately within the area of half the pitch of the cross tongues, permit the passage therethrough of the bent-off cross tongues of the other annular member.

Abstract: A free-wheeling arrangement in which gripping rollers are arranged between an inner race and an outer race which is equipped with gripping surfaces and short abutment flanks; the gripping rollers are forced into the gripping position by springs which are supported on cross tongues of a cage formed by a sheet metal ring, out of which are punched out the cross tongues; the sheet metal ring of a cage is thereby fixed in the axial direction by the clamping-in action between the outer race and the structural part accommodating the same while an outwardly directed nose portion is provided at least at one cross tongue of each cage to prevent relative rotation, which engages in a cross groove provided in the inner contour of the outer race; a disk covers off the free-wheeling device which serves simultaneously as abutment for the gripping rollers.