Siemens Aktiengesellschaft

Andreas Schröter

Vladimir Danov

Heinz Schmidt

Werner Hartmann

Dirk Diehl

Bernd Gromoll

Jürgen Hofmann

Konrad Brandl

Markus Klöpzig

Klaus Dennerlein

Markus Wilke

Patryk Piotrowski

Aristide Spagnolo

Various embodiments include stator for an electrical machine comprising: a stator winding; and a yoke with a plurality of slots. There are a plurality of conductor segments connected to one another, wherein each conductor segment has one respective axially internal inner section and two respective axially external outer sections. The respective inner section of each conductor segment is embedded into a respective slot. Ducts for coolant flow in the axial direction are formed at least in a portion of each of the slots. The stator defines, at least in a first axial end region, a first coolant chamber fluidically encapsulated from a surrounding area. The first coolant chamber surrounds at least a portion of the respective outer sections of each of the conductor segments situated in the first axial end region. The first coolant chamber is fluidically connected to the ducts to conduct coolant into and/or out of the ducts.

Stator having winding cooling for an electrical machine

An electric machine has a base body with a stator, a rotor shaft mounted in the base body, and a heat exchanger. Cooling ducts for a liquid cooling medium are arranged in the base body. The rotor shaft is embodied as a hollow shaft through which the liquid cooling medium can flow. The heat exchanger dissipates heat contained in the liquid cooling medium to the surroundings of the electric machine. The heat exchanger, the rotor shaft and the cooling ducts are fluidically connected in series, producing a closed circuit for the liquid medium. A feed element is arranged to co-rotate with the rotor shaft. The feed element is inserted in the closed circuit for the liquid cooling medium to forcibly circulate the liquid cooling medium in the closed circuit as the rotor shaft for the liquid cooling medium rotates.

Electric machine with enclosed, autonomous cooling medium circuit

An assembly for separating magnetisable particles from a liquid may include a tubular reactor through which the liquid can flow and which includes a first region with at least one permanent magnet and a second region with at least one electromagnet. The first and the second region are arranged one behind the other along a longitudinal axis of the tubular reactor.

Assembly and method for separating magnetisable particles from a liquid

A device for separating ferromagnetic particles from a suspension may include a tubular reactor through which the suspension can flow and which has an inlet and an outlet, and a means for generating a magnetic field, which means is designed to generate a magnetic travelling field which acts on the reactor.

Device for separating ferromagnetic particles from a suspension

A ship propulsion system for watercraft contains at least one propeller, by which a drive force can be created for the watercraft. The ship propulsion further contains an electric motor, the rotor of which is directly mechanically coupled to the at least one propeller via a shaft such that the at least one propeller may be brought into a respective rotating movement by a rotation of the rotor. In order to cool the rotor of the electric motor a thermosiphon is disposed in the shaft, and the propeller serves as a heat sink for a working medium of the thermosiphon.

Growing community of inventors

Erlangen, Germany

Andreas Schröter