Borgwarner Inc.

Kai Homann

Thomas Glass

Andre Becker

Andreas Koepper

Thomas GLAß

A reluctance machine has a stator () and a rotor (). The rotor () comprises an encapsulated body (), which can rotate about an axis of rotation () of the rotor (), and a plurality of flow guide segments (). The flow guide segments () form poles of the rotor (), are arranged in a circumferential direction about the axis of rotation (), and are embedded in the encapsulated body ().

Reluctance machine

A stator arrangement for an electric engine having an inner rotor. The present invention furthermore relates to an electric engine for a charging device, in particular for an internal combustion engine or a fuel cell, having such a stator arrangement. The stator arrangement comprises an outer stator core with electrical windings, and a separate inner stator core, which is arranged inside the outer stator core and is designed to receive the rotor. The outer stator core defines a first inner diameter, which is dimensioned in such a way that a bearing unit of the electric engine can be guided through the outer stator core. An outer diameter of the inner stator core substantially corresponds to the first inner diameter, wherein the inner stator core is designed to extend a magnetic flux in the radial direction during operation. The invention furthermore relates to a method for producing the electric engine.

Electric engine for a charging device and production method

A hydrogen recirculation blower is used in a hydrogen return arrangement in a fuel cell system. The blower includes a rotatable rotor with an end region on which an impeller is arranged, and a stator with coil windings and with a hydrogen barrier which is formed as a hollow body. The rotor is arranged in a cavity of the hydrogen barrier, with the hydrogen barrier running both between the rotor and the coil windings and between the impeller and the coil windings. The rotor and the stator form an electric motor for driving the impeller.

Hydrogen recirculation blower

A multi-functional spacer element for spacing at least one printed circuit board from an opposite spacing surface. The spacer element can not only accomplish the spacing of one or more printed circuit boards, but can also support a fastening function to a carrier element and an electrical ground connection. A passageway extends through the main body. The spacer element includes a press-in element. The spacer elementincludes an electrically conductive material for electrically conducting from at least a first contact surface to the press-in element.

Spacer element for a printed circuit board assembly

An assembly () is described for the electrical connection of two components, in particular of a power electronics switch () to an electric motor () of a charging device (), wherein a first component () has a first contact element () made from a conductive material and formed along a longitudinal axis () and designed with an outer surface () at least partially surrounding the longitudinal axis (), and a second component () has a second contact element () made from a conductive material and is designed with a cavity () formed along the longitudinal axis (), whose inner surface () corresponds to the outer surface () of the first contact element (), wherein either the inner surface () of the second contact element () or the outer surface () of the first contact element () is provided with a profile () which has a plurality of projecting elements, wherein the inner surface () and the outer surface () are selected with respect to their lateral dimensions such that the projecting elements of the profile () penetrate in an area close to the surface during insertion of the first contact element () into the second contact element ().

Growing community of inventors

Mainz, Germany

Kai Homann