Bayerische Motoren Werke Aktiengesellschaft

Continental Automotive Gmbh

Siemens Medical Instruments Pte. Ltd.

Sivantos Pte. Ltd.

Endre Barti

Daniel Loos

Andreas Huber

Dragoljub Duricic

Zakaria El Khawly

Anastasios Vichos

Hartmut Ritter

Utz Wever

Christian Weistenhöfer

Michael Sattler

Holger Ulbrich

Joerg Merwerth

Ivo Sandor

Markus Lang

Julian Blum

Jerome Ragot

Alexander Maier

Meinhard Paffrath

Florian Beck

Bernhard Lehmayr

Michael Klaus

Berthold Schinnerl

Jan Sousek

Andreas Mayr

Johannes Mintzlaff

Timo Merenda

Gerd Britten

A rotor shaft for an electric machine includes a rotor shaft main body and a rotor shaft core which is arranged therein and which is connected to the rotor shaft main body. The rotor shaft comprises a substantially axially running cooling cavity configured to conduct a cooling fluid, and the rotor shaft core is composed of a different material than the rotor shaft main body.

Rotor shaft for an electric machine and electric machine

A shaft-hub connection including a hub element and a shaft element is provided. The hub element includes a hub. The shaft element includes at least one first elongated region arranged in at least one second elongated region of the hub and is at least rotationally fixed to the hub element by way of a longitudinal press-fit including the elongated regions. The longitudinal press-fit has at least one first excess region with a first excess, and at least one second excess region, following the first excess region in the circumferential direction of the shaft element, with a second excess that is smaller than the first excess.

Shaft-hub connection and drive train having a shaft-hub connection of this type

A rotor for an electrical machine has at least one groove, the at least one groove includes a groove bottom and groove walls. A separating element is provided between the groove walls, and extends along the groove. The separating element is arranged on the groove bottom, at least in sections, such that groove chambers are formed along the groove.

Rotor and method for producing a rotor

A pole shoe of an electric machine limits a winding surface of a rotor that can rotate about an axis of rotation. The pole shoe is connected to a pole web of the rotor. An outer side of the pole shoe, which faces away from the pole web in the connected state, has a first region having a substantially sinusoidal contour profile and a second region having a second contour profile. The second contour profile is different from the first contour profile and is formed in such a way that the winding surface in a circumferential direction of the rotor is lengthened with respect to a winding surface of a pole shoe having an outer side extending exclusively substantially sinusoidally.

Pole shoe, electric motor, and vehicle

An electrical machine has a rotor with a hollow shaft which in its interior delimits a hollow shaft axial channel that extends in the axial direction and into which a cooling fluid can flow during operation of the electrical machine. A laminated rotor core is fitted radially to the outside of the hollow shaft and has two axial end sides. An axial channel which is delimited by the laminated rotor core extends in the axial direction from one of the two end sides of the laminated rotor core to the other of the two end sides of the laminated rotor core and is connected in a fluid-conducting manner to the hollow shaft axial channel, so that, during operation of the electrical machine, the cooling fluid can flow from the hollow shaft axial channel to the end sides via the axial channel and can flow radially to the outside downstream of the axial channel owing to centrifugal force.

Electrical machine and vehicle equipped with the electrical machine

A rotor of an exhaust-gas turbocharger includes a rotor hub and rotor blades disposed on the rotor hub. The rotor blades have a blade thickness distribution selected in such a way that the rotor blades have along their extent from a fluid inlet or leading edge to a fluid outlet or trailing edge at least one transition between a stiffness or rigidity-oriented blade thickness distribution and an inertia and stress-oriented blade thickness distribution over the height of the blade.

Rotor of an exhaust gas turbocharger

A rotor element or a star disk which is designed to be arranged on an electrically excited rotor of an electric machine, includes a base which is designed to be arranged in an insert between the axial end of a laminate stack of the rotor and at least one end winding of the rotor. At least one fin is fastened on the base and is designed to protrude in the insert through the at least one end winding axially out of the at least one end winding.

Star disk for an electric machine

A hearing device has a housing, in which a loudspeaker and a battery are disposed. The housing has a first housing part and a second housing part. The housing parts are connected to one another by way of a connection. At least one housing part or an attenuation element provided in the connection between the housing parts is formed of an elastic material.

Hearing device with reduced acoustic feedback due to vibration-related shortening of the hearing device

Growing community of inventors

Munich, Germany

Endre Barti