A drive facility for a medical device comprises a housing, a first motor and a second motor, and a roller facility on the housing and at least partially accommodated in the housing, the roller facility including a roller element, wherein the first motor is configured to pivot the roller facility to pivot the roller element and the second motor is configured to drive the roller element.

A drive facility for a medical device comprises a housing, a first motor and a second motor, and a roller facility on the housing and at least partially accommodated in the housing, the roller facility including a roller element, wherein the first motor is configured to pivot the roller facility to pivot the roller element and the second motor is configured to drive the roller element.

A hybrid powertrain apparatus for a vehicle, includes first and second input shafts concentrically provided to selectively receive power of an engine, a planetary gear set including a first rotation element, a second rotation element, and a third rotation element, wherein the first rotation element is connected to the first input shaft and the second rotation element is connected to a first motor, a clutch device configured to fix the remaining rotation element of the planetary gear set or connect the remaining rotation element to the second input shaft, a second motor connected to the second input shaft, and an output gear provided on the second input shaft.

A vehicular drive device where the damper, the differential gear device, and the first rotary electric machine are disposed side by side on a first axis that is common thereto, the second rotary electric machine is disposed on a second axis that is parallel to the first axis and is different from the first axis, the output device is disposed on a third axis that is parallel to the first axis and is different from the first axis and the second axis, and the first gear mechanism is disposed on a fourth axis that is positioned on a side opposite to the second axis side with respect to a first reference plane that is a plane including both the first axis and the third axis.

A vehicular drive device where the damper, the differential gear device, and the first rotary electric machine are disposed side by side on a first axis that is common thereto, the second rotary electric machine is disposed on a second axis that is parallel to the first axis and is different from the first axis, the output device is disposed on a third axis that is parallel to the first axis and is different from the first axis and the second axis, and the first gear mechanism is disposed on a fourth axis that is positioned on a side opposite to the second axis side with respect to a first reference plane that is a plane including both the first axis and the third axis.

A transmission unit includes: input shafts; output shafts configured to transmit with a corresponding input shaft via gears; a reverse output gear fitted over one output shaft; a reverse synchronizer; a reverse shaft configured to rotate together with a input shaft and a reverse output gear; a motor power shaft; a first and a second motor gears fitted over the motor power shaft; the second motor gear configured to rotate together with a shift driven gear; and a motor synchronizer. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.

A transmission unit includes: input shafts; output shafts configured to transmit with a corresponding input shaft via gears; a reverse output gear fitted over one output shaft; a reverse synchronizer; a reverse shaft configured to rotate together with a input shaft and a reverse output gear; a motor power shaft; a first and a second motor gears fitted over the motor power shaft; the second motor gear configured to rotate together with a shift driven gear; and a motor synchronizer. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.

An electric drive for driving a motor vehicle comprises a housing assembly; an electric motor having a motor shaft provided in the form of a hollow shaft which is rotatingly drivable around a rotational axis A and which is connected to a drive gear; a transmission unit having at least one transmission shaft which is rotatingly drivable by the drive gear and having at least one output shaft, the output shaft extending through the hollow shaft; wherein between the hollow shaft and the output shaft an annular channel is formed, having a first opening facing the transmission unit and a second opening facing away from the transmission unit; wherein the housing assembly comprises a lubricant-guiding geometry that is configured to guide lubricant into a mouth region of the first opening of the annular channel, so that the lubricant can flow through the annular channel to the second opening.

An electric drive for driving a motor vehicle comprises a housing assembly; an electric motor having a motor shaft provided in the form of a hollow shaft which is rotatingly drivable around a rotational axis A and which is connected to a drive gear; a transmission unit having at least one transmission shaft which is rotatingly drivable by the drive gear and having at least one output shaft, the output shaft extending through the hollow shaft; wherein between the hollow shaft and the output shaft an annular channel is formed, having a first opening facing the transmission unit and a second opening facing away from the transmission unit; wherein the housing assembly comprises a lubricant-guiding geometry that is configured to guide lubricant into a mouth region of the first opening of the annular channel, so that the lubricant can flow through the annular channel to the second opening.

The invention relates to a multi-speed transmission (10, 110), comprising a power split device (11; 111), an input shaft (12, 112) of the transmission (10, 110) being connected or connectable to prime mover (18, 118), an output shaft (13; 113), two shiftable sub-transmissions (14, 114; 15, 115), each providing a plurality of different gear ratios, and at least one rotating electric machine (16; 116, 116a), connected to said power split device (11; 111), wherein the two sub-transmissions (14, 114; 15, 115) can be connected alternatively to the output shaft (13, 113), and a control system (26; 126, 126a), connecting said electric machine (16; 116, 116a) with an electric battery (27; 127) and auxiliary electrical consumers (31, 131). The electric machine (16; 116, 116a) is connected to the power split device (11; 111) in a way that it allows to reduce torque value down to zero on either an input shaft (20; 120) of the first sub-transmission (14; 114) or on an input shaft (22; 122) of the second sub-transmission (15; 115) by applying different shaft torque levels, and the internal heat generation capacity of the electric machine (16; 116, 116a) exceeds the power capacity of the power line in said control system (26; 126, 126a).