Abstract: An attachment cooler of a dynamo-electric machine is embodied as a heat exchanger and includes a primary circuit for flow of a medium, and a secondary circuit separate from the primary circuit for flow of a medium, with the secondary circuit including a central channel and a waste air channel. A casing includes receiving openings and is designed to accommodate the central channel and the waste channel of the secondary circuit, with the waste channel leading out to a side of the casing. Exchangeable modules embodied as plate heat exchangers are insertable in the receiving openings of the casing. Each of the modules is designed for individual removal, without a flow bypass being created by unoccupied ones of the receiving openings.

Abstract: A drive for a belt conveyor system includes a permanently excited synchronous motor having a stator and a rotor, wherein a gap size is formed between the rotor and the stator, and a holding device is provided, which is secured to the stator via a first securing device and to the rotor via a second securing device in order to provide secure assembly of the drive, such that the gap size is maintained, where the first securing device and/or the second securing device are detachably formed, such that an uninterrupted operation of the belt conveyor system is guaranteed.

Abstract: The invention relates to an electric rotating machine (10) comprising a rotor (7), a stator (1) surrounding the rotor (7), and an air gap (6) between the rotor (7) and the stator (1). In order to obtain high efficiency and a compact design, the stator (1) has stator windings (13) that are encased, and the stator (1) immediately adjoins the air gap (6).

Abstract: A salient pole rotor includes at least two radially outward facing pole bodies, electrical windings respectively disposed in surrounding relationship to the pole bodies, and pole shoes provided on the pole bodies. Each pole shoe is arranged radially outwardly on the electrical winding of the pole body and has a width which is wider in a circumferential direction than a width of the pole body. The pole shoe has a radially inward facing, tapering projection of a shape complementing a radially inwardly tapering groove on a radial external surface of the pole shaft. The pole shoe and the pole body are connected in a mechanically releasable manner.