No abstract available

No abstract available

[en] A rotor apparatus intended for the study of gas/surface interaction processes is presently nearing completion. The carbon fiber rotors under consideration are constructed with shapes derived from long thin cylindrical rods oriented with the longest axis in a horizontal plane, and spun in a horizontal plane about an axis which is perpendicular to the long axis and passes through the mid-point of the cylinder. The beam formation processes are discussed and rotor diagrams presented. Performance of these types of high speed rotor show them to have a very important future as sources of intermediate energy molecular beams

[en] The article describes the perspectives of using active bearings in rotor-bearing systems. The principal scheme of a mechatronic tribotechnical system anв classification of actuators used in such system are shown. Piezo actuators are considered from the point of view of use as actuators in active bearings. The comparative characteristics of different types of actuators (paper)

[en] Describes induction motors having an outer squirrel-cage or slip-ring rotor driving the shaft, and an inner, free-running rotor with the function of compensating the reactive load of the stator. Investigates theoretically the suggestion that a superconducting inner rotor would also produce very high excitation, and enable the iron circuits to be dispensed with. (R.W.S.)

[en] This patent describes a poly-phase, self- energizing, air-core superconducting motor. It comprises a stator having three sets of windings; a rotor including a large rotor winding and a small rotor winding, the windings being installed so their axes are orthogonal to each other and connected to form a current loop which is exposed to a magnetic field, the stator and rotor each being made from a superconductive material, and the ratio of turns of the large winding to the small winding being between 5:1 and 10:1; and, means for trapping a maximum number of magnetic flux lines in the loop when the magnetic field is impressed thereon and for thereafter transferring the trapped flux between the large and small winding to run the motor, the loop acting as a perfect conductor whereby no flux change occurs within the loop after the flux lines are trapped

[en] The signatures of rigid triaxiality in low-energy, low-spin nuclear spectra are discussed. Eight nuclei in the range of structural parameter 2.9< R_4/2<3.3 are explored to find out whether they are γ-static. Interestingly, this region is a transition path between X(5) critical point and the rigid rotor limit which is described by the confined β-soft (CBS) rotor model of Pietralla and Gorbachenko (2004 Phys. Rev. 70 011304).

[en] A flowmeter with a conical rotor is described resting with the cone-shaped shell on a conical wall of the housing for non-flowing medium and lifting from the wall for flowing medium; in addition, it has slots in the cone-shaped shell. By a special shape and retaining slots it is achieved that the rotor exactly follows the changes of the flow velocity. (RW)

[en] The invention concerns an improvement of a cooling device for rotors of multistage axial steam turbines by providing in the first stage of each group of turbine stages a circulation loop connecting the wheel chamber on the inlet side of the rotor disc of the first stage with the wheel chamber on its outlet side. This is to cause the cooling effect not to be hampered by gap widths of the seal in the bottom range of the rotor blades changing during operation. Design particulars are described in detail. (UWI)

[en] A device is developed for eliminating the displacement of the rotor shaft in electrical machines. The displacement is determined by measuring the transducer capacitance at four equidistant points around the circumference relative to the shaft.