Schaeffler Technologies Ag & Co .kg

Andreas Rosenwald

Viktor Ruder

Gunter Volkel

Fritz Wiesinger

Benjamin Kaestner

Günter Völkel

Carlo Vinci

A fluid system for a motor vehicle drivetrain is provided including a housing including drain hole, a first fluid chamber for receiving fluid, and a second fluid chamber for receiving fluid, the drain hole coupled to the first fluid chamber and the second fluid chamber for draining fluid from both the first fluid chamber and the second fluid chamber. The fluid system further includes a stopper configured to prevent fluid from draining from the first fluid chamber and the second fluid chamber out of the drain hole in a first orientation of the stopper and configured to allow fluid to drain from the first fluid chamber and the second fluid chamber out of the drain hole in a second orientation of the stopper. The stopper is configured to isolate the first fluid chamber from the second fluid chamber in the first orientation of the stopper.

Common drain for fluid chambers of a motor vehicle drivetrain fluid system

A drive assembly for a motor vehicle drivetrain includes a differential configured for driving a first output shaft and a second output shaft about a center axis and for allowing the first output shaft and the second output shaft to rotate about the center axis at different speeds, and planet gears each rotatably mounted on a respective planet carrier. The planet gears each include a radially extending surface and blades circumferentially spaced part from each other. The blades axially protrude from the radially extending surface for directing a fluid flow axially toward the differential during operation of the drive assembly.

Automotive drivetrain gearbox including differential and planet gears with blades

A gearbox for a motor vehicle drivetrain is provided including a gearbox housing; and a differential inside of the gearbox housing configured for driving a first output shaft and a second output shaft about a center axis and for allowing the first output shaft and the second output shaft to rotate about the center axis at different speeds. The differential includes a first side gear on a first side of the differential configured for being drivingly connected to the first output shaft; a second side gear on a second side of the differential configured for being drivingly connected to the second output shaft; a differential housing radially surrounding the first and second side gears; and a first bearing rotatably supporting the differential housing with respect to the gearbox housing. The differential housing includes axially extending holes passing therethrough from an exterior of the differential housing to an interior of the differential housing for directing fluid that is between the differential housing and the gearbox housing into the interior of the differential housing.

Automotive drivetrain gearbox including differential housing including fluid flow holes

A drive assembly for a motor vehicle drivetrain includes a differential configured for driving a first output shaft and a second output shaft about a center axis and for allowing the first output shaft and the second output shaft to rotate about the center axis at different speeds. The differential includes a first side gear on a first side of the differential configured for being drivingly connected to the first output shaft; a second side gear on a second side of the differential configured for being drivingly connected to the second output shaft; a differential housing enclosing the first and second side gears; support pins non-rotatably fixed to the differential housing; and spider gears rotatably mounted on the support pins and positioned between the first side gear and the second side gear. Each of the spider gears intermeshes with both the first side gear and the second side gear to transmit power from the support pins to the first side gear and the second side gear. The drive assembly further includes a hollow drive shaft for driving the differential. The differential housing is configured for transmitting power from hollow drive shaft to the support pins. The hollow drive shaft is partially nested radially within the differential housing to direct oil from inside of the hollow drive shaft into the differential housing.

Automotive drivetrain gearbox including differential cover nested with rotor

A drive assembly with passive cooling and/or lubrication. The drive assembly includes a housing, an electric motor having a shaft that is rotatably drivable about an axis of rotation, and a gear assembly located in the housing. The gear assembly is rotatably drivable by the shaft, and includes a plurality of gears that are rotatable in a rotational drive direction. An oil removal opening is located on an inner wall of the housing aligned with the gears, with the oil removal opening being located between −45 and +45 degrees from a horizontal plane that extends through the axis of rotation on a rotationally upward moving side of the gears in the rotational drive direction. The oil removal opening has an upper edge that is angled and faces counter to the rotational drive direction. An oil delivery channel extends from the oil removal opening to a feed port for the motor.

Growing community of inventors

Nuremberg, Germany

Andreas Rosenwald