Schaeffler Technologies Ag & Co .kg

Inaki Fernandez

Harald Martini

Thorsten Biermann

Franz Kurth

Philip Wurzberger

Simone Lombardo

Philipp Mattes

An electric drive provides transmission oil cooling. An oil circuit supplies the transmission with oil. A cooling circuit cools a supply device and/or an electric motor with a coolant. A heat exchanger portion is coupled on one side to the cooling circuit and on the other side to the oil circuit. The supply device is arranged in a supply housing region. The heat exchanger portion forms a wall portion of the supply housing region. An end cover closes the heat exchanger portion. The end cover has at least one functional region, wherein the functional region is designed as a counterpart cooling structure, as an oil sump region and/or as a pump interface for coupling an oil pump.

Electric drive comprising heat exchanger section between oil and a cooling fluid

A transmission device for a motor vehicle includes a planetary gearset and a spur gear differential. The planetary gearset includes a drive sun gear, a ring gear fixed to the housing, and multiple stepped planetary gears. Each stepped planetary gear has a first gear meshing with the drive sun gear and a second gear meshing with the ring gear. The spur gear differential includes multiple first and second compensation gears. Each first compensation gear meshes with a first output sun gear, each second compensation gear meshes with a second output sun gear, and the first and second compensation gears mesh with each other in pairs. One compensation gear of each compensation gear pair is arranged in phase with a respective stepped planetary gear. The other compensation gear of each compensation gear pair overlaps axially and contactlessly with the second gear.

Transmission device for a motor vehicle

A spur differential gear, including a planet carrier having a rim gear carrier with a plurality of radially inward protruding segments circumferentially displaced from each other creating windows therebetween, and first and second hubs fixedly secured to opposite axial sides of the plurality of segments, wherein the components of the rim gear carrier are non-rotatably connected to each other, first and second output gears, a revolving planet arrangement contradirectionally rotatably coupling the first and second output gears via a plurality of circumferentially displaced planet pairs, each planet pair including first and second revolving planets configured to rotate around their own planet axes, wherein the first and second revolving planets revolve with the planet carrier around the axis of rotation and are rotatable opposite it around the first and second planet axes, respectively, wherein one of the plurality of planet pairs is accommodated in each of the plurality of window segments.

Spur differential gear

A gear unit combination including a differential transmission, a planetary gear stage, a common planet carrier, a plurality of planet sub-carriers arranged to have at least one external planet sub-carrier and to form the common planet carrier in a rotationally fixed manner, a bearing sleeve arranged within the at least one external planet sub-carrier, and at least one spur gear, wherein the bearing sleeve is arranged to radially position the at least one spur gear.

Supporting and guiding disk in a planetary gear train

A plug-in shaft system comprising a hollow stub shaft inside of which a shaft is put to transmit torque, a sealing cap being fastened to a front end of the hollow stub shaft to seal the interior of the hollow stub shaft from the passage of oil, and an oil guiding cap being fastened to the front of the hollow stub shaft at an axial distance to the oil sealing cap, the oil guiding cap defining an oil guiding space. A differential, such as a straight differential, including the plugin shaft system, wherein preferably two sun gears are used.

Insert shaft system, differential with insert shaft system, oil distribution in shaft systems of transmissions, and steel oil drip pan for the oiling of a shaft

A planetary gear of a differential gear, with a planetary carrier to which planetary wheels are rotatably connected and which are in meshing operative contact with at least one sun wheel, whereby the planetary carrier is connected to a driving wheel, further comprising a roller bearing that is provided with two bearing rings, a bearing inner ring and a bearing outer ring for axial and/or radial position determination of the planetary carrier relative to a fixed housing, wherein a cover is positioned radially between the planetary carrier and the sun wheel.

Planetary gear of a differential gear

A planetary gearbox () having a differential gear (), having a planet carrier () to which planet wheels () that are in meshed engagement with at least one sun gear () are rotatably connected, wherein the planet carrier () can be connected to a drive wheel (), wherein in addition a bearing () having an inner bearing ring () and an outer bearing ring () rotatably mounts the planet carrier () in a stationary housing determining the axial and/or radial position of said carrier, wherein the outer bearing ring () is rotatably fixedly connected to the planet carrier () and the inner bearing ring () is connected to the stationary housing.

Growing community of inventors

Nuremberg, Germany

Inaki Fernandez