Abstract: An electric axle drive for a motor vehicle includes a first electric engine, which has a first rotor, a second electric engine, which has a second rotor, and a differential transmission with three shafts. The first rotor can be coupled with the input shaft such that torques originating from the first rotor are introduced into the differential transmission via the input shaft. A first switch element is configured to couple the second rotor with the first output shaft such that torques originating from the second rotor are introduced into the first output shaft. A second switch element is configured to couple the second rotor with the second output shaft such that torques originating from the second rotor are introduced into the second output shaft.

Abstract: A wheel hub drive for a motor vehicle has a wheel carrier, a wheel hub rotatably mounted on the wheel carrier via a wheel bearing, to which wheel hub a vehicle wheel of the motor vehicle can be connected in a rotationally fixed manner, an electric machine which has a stator connected to the wheel carrier in a rotationally fixed manner and a rotor that can be driven via the stator and can thus be rotated in relation to the stator, which rotor is mounted rotatably on the wheel hub via a rotor bearing, and a form-fit coupling device which can be switched between a coupling state, in which the rotor is connected to the wheel hub in a form-fit and rotationally fixed manner by the coupling device, and a decoupling state, in which the rotor can be rotated in relation to the wheel hub.

Abstract: An electric axle drive for a motor vehicle includes a first electric engine, which has a first rotor, a second electric engine, which has a second rotor, and a differential transmission with three shafts. The first rotor can be coupled with the input shaft such that torques originating from the first rotor are introduced into the differential transmission via the input shaft. A first switch element is configured to couple the second rotor with the first output shaft such that torques originating from the second rotor are introduced into the first output shaft. A second switch element is configured to couple the second rotor with the second output shaft such that torques originating from the second rotor are introduced into the second output shaft.

Abstract: An axial bearing in a transmission and a transmission having transmission elements adjacent to an axial bearing, particularly a stepless transmission, are provided. The axial bearing has a running surface or the orientation thereof predetermined directly by a shaft nut, in contrast with prior axial bearings, in which run-up disks form an additional component that must be precisely aligned with regard to adjacent components, so that parallel running surfaces result for the axial bearing.

Abstract: A friction element which can be used in the lockup clutch of a hydrokinetic torque converter and has a friction face engaging a complementary friction face when the clutch is at least partially engaged is provided with one or more channels which are machined, impressed or otherwise formed in its friction face to permit a fluid coolant to flow from a first compartment containing a pressurized fluid into a second compartment wherein the fluid pressure is lower. Each channel includes at least one fluid flow restricting portion which communicates with the first compartment and establishes a turbulent flow of fluid into a major portion of the respective channel. The major portion is designed to establish a laminar flow of fluid toward one or more outlets communicating with the second compartment.

Abstract: A friction element which can be used in the lockup clutch of a hydrokinetic torque converter and has a friction face engaging a complementary friction face when the clutch is at least partially engaged is provided with one or more channels which are machined, impressed or otherwise formed in its friction face to permit a fluid coolant to flow from a first compartment containing a pressurized fluid into a second compartment wherein the fluid pressure is lower. Each channel includes at least one fluid flow restricting portion which communicates with the first compartment and establishes a turbulent flow of fluid into a major portion of the respective channel. The major portion is designed to establish a laminar flow of fluid toward one or more outlets communicating with the second compartment.

Abstract: A hydrokinetic torque converter comprises a lockup clutch having an annular piston which is reciprocable in the direction of the axis of rotation of the housing of the torque converter and carries a friction lining having a friction surface which bears against a friction surface at the inner side of the housing when the lockup clutch is engaged. At least one of the friction surfaces is provided with channels defining passages for the flow of a fluid coolant from a first internal compartment of the housing toward a second compartment located radially inwardly of the friction surfaces. The piston and/or the housing is resiliently deformable so that it can influence the rate of fluid flow through the passages. The width of the passages decreases gradually radially inwardly from the first compartment toward the second compartment, and the passages slope radially outwardly in the direction of rotation of the housing.