Mahle International Gmbh

Behr Gmbh Co. Kg

Martin Helmis

Alfred Elsässer

Michael Krappel

Alfred Elsäβer

Achim Gommel

Alfred Elsaesser

Peter Wieske

Bernd Schaefer

Thomas Riemay

Markus Wesner

Andreas Neubauer

Bernd Mack

Steve Beez

Oliver Fritz

Günther Beez

Christian Staudenmann

René Dingelstadt

Patric Genieser

Jens Baumbach

Marcel Froebel

Georg Kaltwasser

André Maeder

Stephan Weber

Marcel FRÖBEL

Thomas Keller

An electric motor with contact commutation may include an external stator and an internal, rotatably mounted rotor. A magnet arrangement including at least one permanent magnet may be arranged fixedly on the rotor. A coil arrangement including at least one electric coil may be arranged fixedly on the stator. A contact commutation assembly may be in communication with the coil arrangement.

Contact-commutated electric motor

An electric motor may have a rotor and a stator. An external part and an internal part may be arranged concentrically to a rotation axis and may be adjustable rotationally relative to each other about the rotation axis. The electric motor may be one of an external rotor motor and an internal rotor motor. The external part may have at least two permanent magnets. The internal part may have at least two pole arms and at least one electric coil. The rotor may be formed symmetrically and the stator may be formed asymmetrically.

Electric motor having an asymmetric stator

A heat transfer device for a motor vehicle may include a pump and a heat exchanger. The heat exchanger may have a first inlet and a first outlet for a refrigerant, and a second inlet and a second outlet for a coolant. The pump and the heat exchanger may be mounted to each other forming a common assembly.

Heat transfer device

The invention relates to a method for operating at least one rotating closure element in a flow channel; alternately opening and blocking the flow channel relative to a reference variable and with an adjustable phase position; flowing through a cross-section; changing a phase position; and utilizing at least one of a flow force and a flow torque to act on the closure element for at least one of temporarily accelerating and temporarily decelerating the closure element.

Closure device and operating method

The present invention relates to an actuation device () for shifting an actuation member () between two end positions, in particular for controlling a gas flow in an internal combustion engine, with an armature () which is mounted in a stator () such that it can move between two end positions in a pivoting manner about a pivot axis () and which is connected or can be connected in a rotationally fixed manner to the actuation member (), with at least one electromagnet (), which is arranged on or in the stator (), for generating electromagnetic attractive forces, with at least one first stator-side bearing face (), against which a first contact face () of the armature () bears when the armature () is in the first end position, and with at least one second stator-side bearing face (), against which a second contact face () of the armature () bears when the armature () is in the second end position. Increased reliability can be achieved for the operation of the actuation device () by a sensor system () for measuring at least one parameter of a magnetic field, which is produced by the at least one electromagnet () during operation of the actuation device (), which parameter is dependent on the armature movement and/or armature position.

Actuation device, valve means and operating method

Growing community of inventors

Esslingen, Germany

Martin Helmis