A transmission device (1) for an electrically driveable vehicle (34), comprising a transmission element (2), a parking lock (6), by means of which the transmission element (2) can be blocked and which has a parking lock actuator (8), a transmission housing (9), which encloses the transmission element (2) and the parking lock (6), a pressure equalization apparatus (14), by means of which an interior of the parking lock actuator (8) is connected to an exterior of the transmission housing (9) in a gas-permeable manner, wherein the pressure equalization apparatus (14) has a lead-through element (16) which passes through a transmission housing opening (15), and a fluid guiding element (17), the first end of which is connected to the interior of the parking lock actuator (8) and the second end of which is connected to the lead-through element (16).

A transmission device (1) for an electrically drivable vehicle (29), comprising a transmission element (2), a parking lock (6), by means of which the transmission element (2) can be blocked, a transmission housing (9), which encloses the transmission element (2) and the parking lock (6), a connection apparatus (10) with a cable arrangement (11) extending in the transmission housing (9) and to the first end of which a plug connector (12) is attached, the plug connector being arranged in a transmission housing opening (14) for contacting the cable arrangement (11) from the exterior of the transmission housing (9) and having contact elements (25) arranged in a plug connector housing (15), wherein a second end of the cable arrangement (11) is connected to the parking lock (6), wherein the plug connector (12) has at least one sealing means (18, 27) for preventing a lubricant from escaping through the transmission housing opening (14).

An arrangement of at least one sensor track-scanning rotor position sensor (1, 1 A) of an electric machine (EM) in a hybrid transmission housing (2) that includes a torque converter (3) and a housing-affixed oil supply plate arrangement is provided. The rotor position sensor (1, 1 A) is attached on an oil-supply-plate side, and a sensor ring (8), as a sensor track, is attached on a converter side. A hybrid transmission housing (2) including the arrangement is also provided.

A hybrid propulsion system includes a heat engine configured to drive a heat engine shaft. An electric motor is configured to drive an electric motor shaft. A transmission system includes at least one gearbox. The transmission system is configured to receive rotational input power from each of the heat engine shaft and the electric motor shaft and to convert the rotation input power to output power.

A power transmission device for a hybrid vehicle may include: a cover part mounted on a vehicle body; two motor parts embedded in the cover part; two rotor parts mounted in the respective motor parts and rotated; a transfer part selectively connected to the rotor part; a torsion damper part coupled to the transfer part; a clutch part configured to selectively connect any one of the rotor parts to the transfer part; and an output part connected to the clutch part and configured to discharge power to a transmission, wherein any one of the rotor parts is connected to the torsion damper part.

During operation of a wet-running gearbox, vapours and/or air can arise in a housing of the gearbox, which can increase an internal pressure in the housing and thus can influence the operating safety of the gearbox. The problem addressed by the invention is that of creating a gearing unit, which is distinguished by an advantageous arrangement of a venting device.

To this end, a gearing unit 1 for a drive assembly is specified having: a gearing device 4 for converting a drive torque of the drive assembly, the gearing device 4 having an input shaft 8, and the input shaft 8 defining a main axis H; a gearing housing 2 for accommodating the gearing device 4, the gearing housing 2 defining an accommodation space 3 for the gearing device 4; and a venting device 10 for venting the accommodation space 3, the venting device 10 being mounted on the gearing housing 2, wherein the venting device 10 is arranged coaxially with the main axis H and on an axial end face of the input shaft 8.

An encapsulated gear train gear train for a machine comprising a support frame, which is non-encasing, an input shaft rotatably mounted in the support frame, an output shaft rotatably mounted in the support frame, gears configured to operatively connect the input shaft with the output shaft, and an encasement configured to encapsulate the input shaft, the output shaft, the gears, and at least a portion of the support frame, wherein the support frame is configured to be mounted on a structure of the machine such that the support frame does not apply any loads onto the encasement.

An engine for an aircraft includes an engine core having a turbine, a compressor, and a core shaft connecting the turbine to the compressor; a fan located upstream of the engine core, the fan having a plurality of fan blades; and a gearbox. The gearbox is an epicyclic gearbox and comprises a sun gear, a plurality of planet gears, a ring gear, and a planet carrier on which the planet gears are mounted. The radial bending stiffness of the planet carrier is equal to or greater than 1.20×10.sup.9 N/m, and/or the tilt stiffness of the planet carrier is greater than or equal to 6.00×10.sup.8 Nm/rad. A method of operation of such an engine is also disclosed.

Briefly, the disclosure relates to apparatuses and methods to form a gearbox enclosure comprising an external liner, an internal liner, and a variable porosity region disposed between the external liner and the internal liner. The variable porosity region may be configured to accommodate flow of the lubricant, thereby providing a capability to cool, for example, a lubricating fluid at an elevated temperature.

A transmission gear assembly including a housing with an axial center line, having a front wall and a circumferential wall with a breather opening. The front wall includes an annular groove in fluid communication with the breather opening and covered by a substantially circular plate having a perimeter at a first distance (r) from the axial center line and with a predetermined length (L). On each transverse side in at least the lower part, an air/oil inlet and outlet is defined by a recess of the perimeter at a distance (r.sub.3,r.sub.4) from the axial center line smaller than the first distance (r), each recess being in fluid communication with the annular groove. On each transverse side in the upper part, an air/oil inlet is formed by a recess of the perimeter at a distance (r.sub.1,r.sub.2) from the axial center line smaller than the first distance (r) and having a circumferential length (l.sub.1,l.sub.2) shorter than a circumferential length (l.sub.3,l.sub.4) of the inlet/outlets.