Hilti Aktiengesellschaft

Airbus Helicopters Deutschland Gmbh

Eurocopter Deutschland Gmbh

Thomas Pritzen

Reinhard Riedl

Thomas Tendyra

Georg Braml

Torsten Luettich

Markus Buhler

Markus Bühler

Thomas Schäfer

An actuating mechanism () for a vent door () in an aircraft door () comprising an electric motor () driving the vent door () in a closing position towards the aircraft door (), a control unit (), controlling said electric motor (), and a flight lock actuator, driven by the electric motor (). A return spring biases the vent door () to an open position.

Actuating mechanism for a vent door

A rotor () for a permanent magnet motor has a is rotatable around an axis of rotation (A) and has a plurality of axially extending permanent magnets () which are offset circumferentially in a symmetrical manner and arranged, respectively, in receptacles () of a yoke () which is assembled from axially stacked sheet lamellas (), with the sheet lamellas () each having a coaxial inner hole (), at least a first recess () which is open toward the inner hole (), and one second recess () which is closed toward the inner hole (), and with the lamellas being formed in a rotationally symmetrical manner so as to be offset at least by a phase angle, with at least two sheet lamellas () being oriented so as to be offset relative to one another by half of the phase angle.

Rotor for permanent magnet motor

A drive unit () for a hand-held power tool includes a stator () located in the drive unit housing (), an end member () provided at each of the opposite ends () of the stator (), a rotor () provided with at least one permanent magnet (), arranged in a receiving space () limited by the stator () and the end members (), and the rotatably supported by a drive axle () on the end members (); and a fan () rotatably connected with the drive axle () for generating a cooling flow (K) from one stator end () to another stator end () between an inner surface () of the drive unit housing () and an outer surface () of the stator () for cooling the stator () and the drive unit, with the stator outer surface () being provided with a plurality of deflection surfaces () extending transverse to the longitudinal extent (L) of the stator ().

Drive unit for hand-held power tool

Growing community of inventors

Inningen, Germany

Thomas Pritzen