1. A gas friction pump, comprising stationary (6) and rotatable (5), secured on a rotatable rotor shaft (4), pump-active elements, wherein the rotor shaft (4) and the rotatable pump-active elements (5) form components of the rotor, and the rotor shaft (4) is supported by two, spaced from each other, radial bearings (8, 9), of which one is located closer to the gravity center of the rotor than the other, and an axial bearing (16), characterized in that the radial bearing (9), which is located closer to the gravity center of the rotor, is formed as a gas bearing.
2. A gas friction pump according to claim 1, characterized in that the axial bearing (16) is formed as a gas bearing.
3. A gas friction pump according to claim 1 or 2, characterized in that at least one of the bearings consists of an independent module.
4. A gas friction pump according to claim 3, characterized in that the drive (13) consists of an independent module.
5. A gas friction pump according to claim 4, characterized in that at least two bearings are combined in module.
6. A gas friction pump according to claim 4, wherein at least one bearing and the drive are combined in an independent module.
7. A gas friction pump according to claim 1, characterized in that at least one of the modules is brought into engagement with a cylindrical section of the pump housing and is secured.
8. A gas friction pump according to claim 1, characterized in that, sealing means (11) is provided between the gas bearing and a gas outlet region (20)
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A fixed light for a vehicle for generating a light beam for bends, the light comprising:
at least two light-emitting diode modules, each of the modules comprising a semi-ellipsoidal reflector defining a reflector optical axis, a light emitting diode situated at an inner focus of the reflector and defining a light beam axis orthogonal to the reflector optical axis, and a plate disposed to receive at least a portion of the light beam reflected by the reflector;
a sensor configured to sense a path of the vehicle and to supply a signal dependent on the path of the vehicle; and
a controller adapted to selectively switch on the light emitting diodes in accordance with the signal provided by the sensor, and is configured to provide a light beam that sweeps in a predetermined direction.
2. A fixed light according to claim 1, wherein the light beam axes are parallel to each other.
3. A fixed light according to claim 2, wherein an angular opening of the light beam of the light-emitting diode modules increases in a direction in accordance with an order of switching on of the light-emitting diode modules.
4. A fixed light according to claim 1, wherein a beam angle of the light beam of the light-emitting diode modules increases in a direction in accordance with an order of switching on of the light-emitting diode modules.
5. A fixed light according to claim 1, wherein the plate is situated at an outer focus of the reflector.
6. A fixed light according to claim 1, wherein the plate is bent in the form of a dihedron.
7. A fixed light according to claim 1, wherein the controller is adapted to switch on the light-emitting diode modules with a pulse width modulated signal.
8. A fixed light according to claim 1, wherein the sensor comprises a camera adapted to analyze a road in front of the vehicle.
9. A motor vehicle comprising at least one fixed light according to claim 1.