Bayerische Motoren Werke Aktiengesellschaft

Imo Holding Gmbh

Volker Dietz

Hubertus Frank

Erich Russ

Richard Nief

Erich Ruß

Werner Schroeppel

Konrad Büttel

The invention relates to a rolling bearing arrangement (), preferably a large rolling bearing with a diameter of 0.5 or more, for mounting parts of an energy system, in particular as blade bearings for a wind turbine, comprising at least two relatively rotatable annular elements () arranged concentrically with one another and at least regionally inside one another, for connection to relatively rotatable parts of the energy system, wherein two relatively rotatable connecting elements () are separated from each other by a gap () and at least partially overlap each other in the radial direction, wherein, further, provided in the region of the gap () in radially overlapping regions of the annular connecting elements () are at least two rows of rolling elements (), each of which rolls along a respective two raceways () that overlap each other at least regionally in the radial direction, wherein one or more raceways () for rolling elements () are disposed in radially overlapping sections () in such fashion that the contact angle which the connecting line between the centers of the points of contact of a rolling element () with its two raceways makes with the ring plane is equal to or greater than 45&#xb0;, such that such an axial rolling bearing serves to transmit predominantly axially acting force components, and wherein at least one additional bearing is provided for transmitting predominantly radially acting force components and has a contact angle of less than 45&#xb0;, preferably 25&#xb0; or less, particularly 10&#xb0; or less, wherein any raceways for radial rolling bearings that are incorporated directly into the annular connecting elements () are, at most, ones having a maximum distance between them, perpendicular to the raceway surface, that is equal to or less than 25% of the largest distance perpendicular to the raceway surface between two raceways of an axial rolling-bearing row.

Arrangement for mounting counter-rotatable parts of an energy system

The invention relates to a drive mechanism () for rotatably coupling a first system part or machine part, preferably an assembly (A), to a base, pedestal or frame or to another system part or machine part, for example for rotary positioning during the processing of large workpieces or during the moving of loads, which drive mechanism comprises two ring-shaped connecting elements () each having at least one planar connecting surface () and fastening means () that are arranged distributed in a crown shape therein and effect connection to different system parts or machine parts or the like, said two connecting elements () being arranged concentrically with each other and radially one inside the other with a gap-shaped interspace () in which are disposed one or more rows of rolling elements (), each row whereof rolls between two respective raceways () on the two connecting elements (), thus enabling same to rotate relative to each other, at least one connecting surface () and at least one raceway () being formed by machining or shaping a common base body. The invention is characterized in that at least one fully circumferentially extending row of magnets () is arranged inside the gap () on one connecting element () and at least one fully circumferentially extending row of coils () is arranged directly opposite said magnets on the other connecting element (). According to the invention, at least one fully circumferentially extending row of magnets is arranged inside the gap on one connecting element and at least one fully circumferentially extending row of coils is arranged directly opposite said magnets on the other connecting element.

Drive mechanism for rotatably coupling a system part or a machine part

A control unit controls a start-up process of a vehicle power plant in a motor vehicle. In response to a start-up request, the control unit emits a start-up signal for initiating corresponding start-up measures for starting up the vehicle power plant. The control unit determines a time duration from the beginning of the start-up process up to the completion of a successful start-up process and sends a time duration dependent memory signal to the memory unit, which thereupon makes a time duration dependent memory entry.

Start-up time memory unit for motor vehicles

A control unit and method are provided for controlling an automatic shut-off process of a vehicle power plant in a motor vehicle, wherein the control unit emits a shut-off signal for initiating corresponding shut-off measures for automatically shutting off the vehicle power plant, when predetermined shut-off request conditions are fulfilled, and no predetermined shut-off inhibiting condition is fulfilled. The control unit sends to a memory unit a memory signal for storing at least one memory entry, allocated to a shut-off inhibiting condition, when predetermined conditions are fulfilled. In an analogous manner, a control unit and method are designed for controlling an automatic start-up process.

Growing community of inventors

Hoechstadt, Germany

Volker Dietz