Zf Friedrichshafen Ag

David Wörzler

Martin Jelinewski

Rayk Gersten

Stefan Spühler

Martin Christians

Timo Hele

Kai Bornträger

Johannes Glückler

Eckhardt Lübke

Stephan Scharr

Eduard Heilig

Udo Gillich

Andreas Hölscher

Manfred Till

Karlheinz Hoher

Alexander Baur

Marcel Liesel

Raphael Zohner

Mathias Döring

Wolfgang Hübler

A drive train for a mixer drum comprises a generator which outputs a first alternating voltage to a first converter. The first converter is connected to a high-voltage direct voltage network. A second converter is also provided which is connected to the high-voltage direct voltage network and which supplies an electric motor with a second alternating voltage in order to drive the mixer drum. The drive train also comprises a high-voltage battery which is connected to the high-voltage direct voltage network. Finally, a control unit is also provided which is connected to the first and second power converters or the battery and thus controls a flow of energy via the high-voltage direct voltage network.

Drive train for a mixer drum and control device for such a drive train

A cooling arrangement for cooling a stator for an electric machine. The cooling arrangement comprising a stator fixedly mounted relative to a rotational axis. The stator comprises a stator yoke and stator grooves. Windings are provided in the stator grooves, which form first and second winding heads. First and second fluid rings are provided at opposite ends on the stator yoke. The first fluid ring has a fluid inflow opening from a stator housing. The stator yoke has a plurality of axial stator ducts extending in the axial direction, which enable the inflowing fluid to flow through from the first fluid ring to the second fluid ring, and the second fluid ring redirects some of the fluid.

Cooling arrangement for cooling a stator for an electric motor

A stator () for an electric machine () includes a laminated core () arranged axially between a first end plate () and a second end plate (). A cooling line () for introducing a coolant into at least one distribution duct () at the particular end plate () is arranged outside the end plates () and the stator () and is fluidically connected to the at least one distribution duct () in the particular end plate (). The laminated core () includes multiple axial ducts () for guiding the coolant through the stator (). The axial ducts () are fluidically connected to the at least one distribution duct () in the particular end plate () for the inflow of the coolant. An outflow for the coolant is formed by at least one end-face opening () in the particular end plate (). The at least one opening () is configured for spraying the coolant out of the axial ducts () onto winding overhangs () of the stator ().

Stator for an electrical machine

A rotor () for an electric machine () which comprises a rotor support (). The rotor support has cylindrical inner and outer shells (). A magnetic flux-carrying rotor component has first and second end faces () and carries the cylindrical outer shell (). A rotationally shaft section () is arranged in an inside space () of the rotor support and mounted coaxially with the rotor support. At least in the area of the first end face () the outer shell has first teeth which face toward the magnetic flux-carrying rotor component and a first tooth base between respective pairs of first teeth, and at least in the area of the second end face () the outer shell () has second teeth which face toward the magnetic flux-carrying rotor component and a second tooth base between respective pairs of second teeth. The invention also relates to an electric machine.

Rotor and electric motor with such a rotor

A stator (1a, 1 b) for an electric machine. The stator (,) is fixedly mounted relative to a rotational axis (Rot). The stator () comprises a stator yoke () that extends in the axial (A) and radial (R) directions. Stator teeth (), facing toward the rotational axis (Rot), are arranged in a ring shape on the stator yoke (). The teeth are uniformly spaced apart from one another so that a stator groove () is formed therebetween. The stator (,) is divided into a first stator section () and a second stator section (). First and second outer walls () are provided on the stator yoke () and serve to axially support the stator yoke (). A cooling manifold disk () is integrated between the first stator section () and the second stator section (). An electric machine with a stator of that type is also disclosed.

Stator for an electric motor and an electric motor

Growing community of inventors

Langenargen, Germany

David Wörzler