In a motor vehicle having a fuel cell, an air compressor provides input air under pressure at the fuel cell and an electric drive motor for driving the motor vehicle, which drive motor can be supplied with electric current by the fuel cell for that purpose, wherein the air compressor is driven by the drive motor.

A drive system for a self-propelled harvesting machine includes a drive engine, designed as an internal combustion engine, a transfer gearbox driven by the drive engine that includes a first driven pulley which is disposed on a drive shaft for driving at least one drive pulley of a working mechanism using a first belt, and at least one hydraulic pump for driving a further working mechanism. A second output pulley is assigned to the transfer gearbox and drives the at least one hydraulic pump using a second belt.

A family of transmission gearing arrangements utilize one or two ball variators to establish a continuous range of speed ratios between an input and an output. In each case, the range of speed ratios includes an infinite ratio in which the output is stationary as the input rotates. In some embodiments having two ball variators, the outputs of the variators are combining using a planetary gear set. In other embodiments having two variators, the outputs of the variators are combined using clutches, which may be switchable one-way clutches.

A display apparatus including a display and a supporter. The supporter being mounted on the display and configured to support the display and rotate the display module between a first position and a second position. The supporter including a drive motor, a first gear, and a detection sensor. The drive motor configured to supply a driving force to rotate the display. The first gear configured to rotate together with the display by receiving the driving force from the drive motor. The detection sensor configured to detect a rotation amount of a second gear configured to rotate in with the first gear.

A display apparatus including a display and a supporter. The supporter being mounted on the display and configured to support the display and rotate the display module between a first position and a second position. The supporter including a drive motor, a first gear, and a detection sensor. The drive motor configured to supply a driving force to rotate the display. The first gear configured to rotate together with the display by receiving the driving force from the drive motor. The detection sensor configured to detect a rotation amount of a second gear configured to rotate in with the first gear.

An agricultural baler has a flywheel that is connected via a cardan coupling to a PTO of a tractor, the cardan coupling includes a torque-limiter adapted for disengaging the flywheel from the PTO when a predetermined torque is exceeded, wherein the cardan coupling further includes a transmission switchable between a startup state and a running state, in the startup state the transmission is configured to only partially transmit rotational movement of the PTO to the flywheel while in the running state the transmission is configured to fully transmit rotational movement of the PTO to the flywheel.

An axial conversion gear device includes: a crankshaft having a first eccentric portion and a shaft gear; a first oscillation gear having first external teeth; a transmitting gear having a first gear engaged with the shaft gear and a second gear spaced apart from the first gear in an axial direction of the first gear; an axial conversion unit having an external tooth gear engaged with the second gear and an axial conversion gear converting input torque into torque in an axial direction of the external tooth gear; and an outer cylinder having inner tooth pins engaged with the first external teeth of the first oscillation gear, wherein in the axial direction of the external teeth gear, the axial conversion gear is located between the first gear and the second gear.

An axial conversion gear device includes: a crankshaft having a first eccentric portion and a shaft gear; a first oscillation gear having first external teeth; a transmitting gear having a first gear engaged with the shaft gear and a second gear spaced apart from the first gear in an axial direction of the first gear; an axial conversion unit having an external tooth gear engaged with the second gear and an axial conversion gear converting input torque into torque in an axial direction of the external tooth gear; and an outer cylinder having inner tooth pins engaged with the first external teeth of the first oscillation gear, wherein in the axial direction of the external teeth gear, the axial conversion gear is located between the first gear and the second gear.