In a fluid transmission device in which a core is fixed to inner ends of a plurality of blades so as to form, together with a bowl-shaped shell and the blades, an impeller, the core including a plurality of latching holes with which a projecting piece projectingly provided at the inner end of the blade is latched and including a balance weight chip welded to the core, the balance weight chip includes a projecting piece-avoiding hole through which a portion, projecting from the latching hole, of the projecting piece extends, the balance weight chip being welded to the core with a whole of the balance weight chip in intimate contact with the core.

A drive assembly for a torque converter is provided. The drive assembly includes a turbine; a damper assembly fixed to a first side of the turbine by connectors; and a hydrodynamic bearing fixed to a second side of the turbine opposite the first side. The hydrodynamic bearing includes at least one recess formed therein receiving ends of the connectors. A method of forming a drive assembly is also provided. The method includes fixing a damper assembly cover plate to a first side of a turbine via connectors; and fixing a hydrodynamic bearing to a second side of the turbine opposite the first side. The hydrodynamic bearing including at least one recess formed therein receiving an ends the connectors. A torque converter is also provided.

A vehicle drive device that includes a rotary electric machine that serves as a driving force source for wheels; a first rotation member coupled to a rotor of the rotary electric machine; and a fluid coupling that is disposed on an axial first side, which is one side in an axial direction with respect to the rotary electric machine, and that has a rotation housing.

A vibration damping having a first torsional vibration damper couplable to a drive member with a first secondary side rotatable with respect to the first primary side against a return action of a first damper element arrangement, a second torsional vibration damper with a second primary side connected to the first secondary side and with a second secondary side rotatable with respect to the second primary side against the return action of a second damper element arrangement and couplable to an output member, and a deflection mass pendulum arrangement having at least one deflection mass. The first damper element arrangement has a plurality of first damper element units acting parallel to one another and/or the second damper element arrangement has a plurality of second damper element units acting parallel to one another.

A torque converter turbine is provided. The torque converter turbine includes a plurality of blades, an annular bowl shaped blade supporting portion supporting the blades and a mass fixed to the blade supporting portion. A method of forming a torque converter turbine is also provided. The method includes providing a blade supporting portion of a turbine shell with mass and connecting a plurality of blades to the blade supporting portion.

A washer assembly and a hydrodynamic torque converter comprising the washer assembly is provided. The washer assembly comprises a washer and a plate; the washer is annular and comprises a washer body and two or more positioning clamps protruding radially inward from an inner periphery of the washer body, at least one side of the positioning clamp in a circumferential direction having a positioning protrusion protruding; the plate is annular, an inner periphery portion of the plate being provided with two or more positioning notches; an edge of at least one side of the positioning notch in the circumferential direction being provided with a positioning groove; and the washer is mounted to one end face of the plate. The washer assembly saves the internal space of the torque converter and saves the material cost of the washer.

A washer assembly and a hydrodynamic torque converter comprising the washer assembly is provided. The washer assembly comprises a washer and a plate; the washer is annular and comprises a washer body and two or more positioning clamps protruding radially inward from an inner periphery of the washer body, at least one side of the positioning clamp in a circumferential direction having a positioning protrusion protruding; the plate is annular, an inner periphery portion of the plate being provided with two or more positioning notches; an edge of at least one side of the positioning notch in the circumferential direction being provided with a positioning groove; and the washer is mounted to one end face of the plate. The washer assembly saves the internal space of the torque converter and saves the material cost of the washer.

A shaft (W) for a motor vehicle transmission (G) may have axial bore holes positioned within the shaft and configured to guide fluid within the shaft. The shaft may have first, second, and third axial sections (W1, W2, W3), the second axial section being axially between the first and third axial sections. Fluid enters the axial bore holes in the second axial section and exits the axial bore holes in the first and third axial sections. One of the axial bore holes (B2; B1, B1a) is arranged, at least partially, in the first axial section and is radially spaced from an axis of rotation (WA) of the shaft. Another of the axial bore holes (B1RS; B_SE5, B3a) is arranged, at least partially, in the third axial section. The one of the axial bore holes (B2; B1, B1a) is coaxial with the other of the axial bore holes (B1RS; B_SE5, B3a).

A shaft (W) for a motor vehicle transmission (G) may have axial bore holes positioned within the shaft and configured to guide fluid within the shaft. The shaft may have first, second, and third axial sections (W1, W2, W3), the second axial section being axially between the first and third axial sections. Fluid enters the axial bore holes in the second axial section and exits the axial bore holes in the first and third axial sections. One of the axial bore holes (B2; B1, B1a) is arranged, at least partially, in the first axial section and is radially spaced from an axis of rotation (WA) of the shaft. Another of the axial bore holes (B1RS; B_SE5, B3a) is arranged, at least partially, in the third axial section. The one of the axial bore holes (B2; B1, B1a) is coaxial with the other of the axial bore holes (B1RS; B_SE5, B3a).

A stator assembly for a torque converter includes a body and a washer. The body is rotatable about an axis and has a cavity defined by an axial wall radially spaced from the axis and a radial wall extending radially inward from the axial wall. The washer is disposed in the cavity and is configured to be compressed against the radial wall. The washer includes a base and a plurality of circumferentially spaced from each other and extending radially outward from the base. The plurality of tabs are configured to non-rotatably connect to the axial wall.