Zf Friedrichshafen Ag

Johannes Sorg

Walter Loichinger

Notker Amann

Ralf Boss

Robert Januschevski

Bruno Walter

A wind power turbine with a wind rotor which operates at variable speeds, a generator that can operate at a constant speed and an electric machine that can operate at a variable speeds, which are each in driving connection with one another by way of a superimposition transmission, such that as a power control device for regulating the speed of the generator, the electric machine is connected to a power grid and operates as a generator and motor. A controllable brake, for braking the generator, is arranged in the force flow between the transmission and the generator to extend the operating range of the wind power turbine down to lower wind speeds. When operating the turbine at low wind speeds, the brake is applied, the generator is deactivated, and electric current is produced by operating the electric machine as a generator, which is fed to the power grid.

Wind power plant and method for controlling the operation of a wind power plant

A steering system for tracked vehicles having two brake circuits which is activated after a failure of the primary steering mechanism. The steering system includes a steering switch (L) that can be controlled by a steering axle which, in the event of primary steering system failure, acts upon the brakes of the vehicle in such a manner that rotation of the steering axle results in a braking action upon a track on the inside of a curve.

Steering system for tracked vehicles

An electrical drive system for a vehicle with a skid steering element exhibits a homogeneous electrical drive engine and a homogeneous gear unit () on the left and on the right side in each case, which are propelled by a drive engine (), assigned in each case, and over a power drive flange () to propel a track or a drive wheel. Two transfer elements () of the left gear unit (), which do not form the drive, are directly connected by a mechanical gear train crosswise in each case with both transfer elements () of the right gear unit, which do not form the drive.

Electrical drive system for a vehicle with skid steering

Operating method for a motor vehicle driving unit

Electromechanical cross-drive steering transmission for tracklaying

Protection device for a steering transmission of a tracked vehicle

Growing community of inventors

Ravensburg, Germany

Johannes Sorg