A power generator assembly including a rotating part and a non-rotating part is provided. It is proposed that the rotating part includes first and second, circumferentially adjacent generator units. Each generator unit includes at least one coil, at least one permanent magnet and two pole shoes having pole surfaces facing radially outward. The non-rotating part includes an arc-shaped saddle adaptor of ferromagnetic material arranged with a radial distance to the pole surfaces. The saddle adaptor is configured to close a magnetic circuit passing via the pole shoes through the coil in a rotational position where the saddle adaptor overlaps with the pole shoes of a generator unit. According to the invention, a pole shoe of the first generator unit and an adjacent pole shoe of the second generator unit have the same magnetic polarity.

A rotating part that includes at least one generator unit having at least one coil, at least one permanent magnet and two pole shoes having pole surfaces facing radially outward is provided, The non-rotating part has an arc-shaped saddle adaptor of ferromagnetic material arranged with a radial distance to the pole surfaces. The saddle adaptor is configured to close a magnetic circuit passing via the pole shoes through the coil in a rotational position where the saddle adaptor overlaps with the pole shoes of the generator unit.

A rotating part that includes at least one generator unit having at least one coil, at least one permanent magnet and two pole shoes having pole surfaces facing radially outward is provided, The non-rotating part has an arc-shaped saddle adaptor of ferromagnetic material arranged with a radial distance to the pole surfaces. The saddle adaptor is configured to close a magnetic circuit passing via the pole shoes through the coil in a rotational position where the saddle adaptor overlaps with the pole shoes of the generator unit.

The disclosure relates to a generator system for rail vehicles, for example, a system including a generator with a rotor and a stator, and a journal box unit. The journal box unit may include a bearing for mounting an axle, and a bearing housing. An end cap is arranged on the front face of the axle. The end cap is connected to the axle for co-joint rotation therewith, and the stator is connected to the bearing housing. A friction wheel is arranged on the outer circumferential surface of the end cap, the friction wheel being designed as the rotor of the generator.

The disclosure relates to a generator system for rail vehicles, for example, a system including a generator with a rotor and a stator, and a journal box unit. The journal box unit may include a bearing for mounting an axle, and a bearing housing. An end cap is arranged on the front face of the axle. The end cap is connected to the axle for co-joint rotation therewith, and the stator is connected to the bearing housing. A friction wheel is arranged on the outer circumferential surface of the end cap, the friction wheel being designed as the rotor of the generator.

A covering system for wheelset shafts of rail vehicles includes a cover, a wheelset bearing unit, and a centering device. The wheelset bearing unit has an axis of rotation, a bearing housing with an end face facing towards the cover, and a wheelset bearing for the mounting of a wheelset shaft. The wheelset bearing has an end cap surrounded by the cover. The centering device is for aligning the cover in relation to the bearing housing. The centering device includes a groove on the end face.

A brake energy recovery module for an electric vehicle. The electric vehicle includes a motor module and a battery module. The brake energy recovery module includes a first detecting unit, a signal decoder, a power converting unit and a control unit. The first detecting unit is electrically connected to the motor module to detect a first voltage of the motor module. The signal decoder generates a first signal and a second signal according to plural operation signals of the motor module. The power converting unit is electrically connected to the motor module and the battery module. The control unit is electrically connected to the first detecting unit, the signal decoder and the power converting unit. The control unit controls the power converting unit to adjust the first voltage to provide the battery module with a second voltage according to the first voltage, the first signal and the second signal.

A device for monitoring operation parameters of a vehicle axle including a measuring instrument (1) comprising at least a position sensor, a device (2) for communication of measured quantities to an external device, a mechanism (5) for conversion of mechanical energy of the axle to electrical energy and a memory (3) with a stored identification code. A device has the shape of a ring (4) that is applied on the vehicle axle in such a way that it encircles it. The ring (4) consists of at least two parts (4a, 4b) that are adapted for permanent connection around the vehicle axle. The mechanism (5) consists of a circumferential cavity (5a) in the inner part of the ring where a permanent magnet (5b) is freely positioned, at least one coil (5c), preferably four coils (5c) being positioned along its perimeter. The device (2) for communication of measured quantities is a wireless transmitter with a GSM interface or radio-frequency interface configured for communication of measured values together with the identification code (3) of the axle to an external processing unit.

A device for monitoring operation parameters of a vehicle axle including a measuring instrument (1) comprising at least a position sensor, a device (2) for communication of measured quantities to an external device, a mechanism (5) for conversion of mechanical energy of the axle to electrical energy and a memory (3) with a stored identification code. A device has the shape of a ring (4) that is applied on the vehicle axle in such a way that it encircles it. The ring (4) consists of at least two parts (4a, 4b) that are adapted for permanent connection around the vehicle axle. The mechanism (5) consists of a circumferential cavity (5a) in the inner part of the ring where a permanent magnet (5b) is freely positioned, at least one coil (5c), preferably four coils (5c) being positioned along its perimeter. The device (2) for communication of measured quantities is a wireless transmitter with a GSM interface or radio-frequency interface configured for communication of measured values together with the identification code (3) of the axle to an external processing unit.

A drive system for a rail vehicle includes at least one drive motor and at least one cooling apparatus for cooling the at least one drive motor and/or other components of the drive system, in particular a current converter. The drive system is constructed and intended to use kinetic energy of the rail vehicle for operation of the cooling apparatus. A rail vehicle having the drive system and methods for the forward movement of a rail vehicle are also provided.