Robert Boschgmbh

Bmts Technology Gmbh &co. Kg

Johannes Riedl

Peter Zweigle

Michael Nau

Patrick Heuser

Hartmut Weiss

Andreas Herzberger

Tobias Hein

Armin Elser

Martin Ermer

Sebastian Tabarelli

Patrick Fruehauf

Heiko Wurster

Michael Bäuerle

Thomas Frühschütz

Mickael Kremer

Philipp Breinlinger

Alexander Kudlek

Kilian Ertl

The invention relates to an insulating device () having integrated cooling medium channels (), comprising an insulating body () made of a plastic material (), in which conductor rails () are accommodated. The cooling medium channels () are integrated into the plastic material () of the insulating body ().

Insulating device with cooling medium line

The invention relates to an electric media gap machine () for a compressor and/or a turbine, in particular for a turbocharger of an internal combustion engine, including a shaft () which is rotatably mounted in a housing () and on which a rotor () is arranged in a rotationally fixed manner, a stator () which is fixed to the housing and which has at least one multi-phase drive coil () for generating a drive magnetic field and multiple stator teeth () that protrude radially inward, and a device () which is fixed to the stator for optimizing the flow of a medium flowing through the media gap machine. The device () has a cover cap () which covers at least the rotor () upstream thereof, wherein the cover cap () is adjoined by an inner sleeve () which surrounds the rotor () completely in the circumferential direction and at least partly in the axial direction. The device () has an outer sleeve () which is arranged coaxially to the inner sleeve () such that the only flow path for the medium between the inner sleeve () and the outer sleeve () is formed solely through the stator () of the media gap machine.

Electric media gap machine for a compressor and/or a turbine, turbocharger and/or turbine

The invention relates to a stator having a multi-phase wave winding made of hairpin conductor elements (). Each phase consists of two parallel or serially connected branches (). Each branch has a first () and a second () winding portion, which are connected to each other in series. The slot position of the two limbs () of each hairpin conductor element alternates by +&#x2212;1. The first winding portion () extends clockwise along the stator circumference; the second winding portion () extends counterclockwise and is connected to the first winding portion via a reverse-connector conductor element (). Both limbs of the reverse-connector conductor element () of the first winding branch () are located in the uppermost slot position; the limbs of the reverse-connector conductor element () of the second winding branch () are located in the lowermost slot position.

Stator for an electric machine

An electrical machine () for driving a vehicle comprises: a stator () having stator grooves () running axially and running uniformly around an axis of the electrical machine (), through which grooves a stator winding () runs; and a rotor () with axially running poles (), which rotor is mounted inside the stator () for rotation around the axis of the electrical machine (), wherein two pole magnets () with rectangular cross-section are arranged in each pole () of the rotor () in an axially running pole opening () forming a V in respect of one another. The electrical machine () is optimized with respect to a plurality of geometrical parameters which have been optimized by optimization of optimization parameters which are determined from the geometric parameters.

Optimized electrical machine

Stators for an electrical machine which are fitted with a polyphase winding which is in the form of a plug-type winding and the winding sections of which run through slots of the stator and comprise a plurality of different conductor elements are already known. At least some of the said conductor elements have in each case two conductor limbs and in each case one connecting conductor which connects the two conductor limbs, wherein an even number of n conductor limbs is arranged one above the other in the radial direction with respect to a stator axis in each slot. Each conductor limb of one of the conductor elements is provided in its slot in a specific position with respect to a slot base of the slot. These polyphase windings comprise a comparatively large number of different conductor elements, in particular so-called special conductors which differ from the standard conductor elements. These special conductors increase the manufacturing costs. In the case of the stator according to the invention, a few different conductor elements are provided for the polyphase winding. According to the invention, it is provided that the lower conductor elements () each have conductor limbs () which are situated in the same position and the upper conductor elements () each have conductor limbs () which are situated in the same position, wherein the step width of the lower conductor elements () in relation to the step width of the upper conductor elements () differs by the value of one, in particular is greater by the value of one.

Stator for an electrical machine

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Munich, Germany

Johannes Riedl