Abstract:
The invention relates to shaft bearing (1) for the rotor (2) of a turbo-machine (19) which extends along a rotor pin (3). Said shaft bearing (1) has a bearing element (5) with a bearing surface (15). Said bearing surface (15) supports an associated rotor surface (7) and the bearing element (5) can be axially displaced. The invention further relates to a turbo-machine (19) and to a method for operating said turbo-machine (19).
Abstract:
The aim of the invention is to provide a low-cost electric motor fan wheel combination (2). To this end, the end of the rotor shaft (23) carrying the fan wheel (4) is assigned to that slide bearing (15) that is embodied as a bi-directional axial bearing. The hub (24) of said fan wheel (4) is arranged so closely to a front-face bearing surface (18) of the slide bearing bush (17) that said hub (24) forms a front axial limit stop of the thrust bearing. In this manner, it is no longer necessary to use a special stop ring. The inventive electric motor fan wheel combination (2) can be used, for example, in a motor vehicle for ventilating the interior.
Abstract:
The aim of the invention is to improve the cooling of a self-ventilated electric motor (1). To this end an electromagnetic speed limiting and governing device is provided for between the motor shaft (3) and fan wheel (2). The fan wheel, which is driven via an electromagnetic slip coupling (6, 10) in accordance with motor speed, is mounted on the motor casing or mount (5) such that it is able to rotate freely.
Abstract:
The arrangement allows to stabilize a rotating shaft. It comprises a shaft (12) being arranged substantially vertically in a machine (10) so as to rotate during machine operation, first pressure delivery system(22, 23, 30) for delivering a fluid pressure, in particular of a fluid circulating inside the machine (10), at a first location (1) of the machine (10). Said first location (1) is close to the shaft (12) and part of said first pressure delivery system (22, 23, 30) is arranged at said first location (1) so as to exert a lateral pulling or pushing action on the shaft (12).
Abstract:
The invention relates to an axial ventilator having an external-rotor drive motor. The external rotor comprises a permanent magnet which by cooperating with the ferromagnetic material of the stator generates an axial magnetic force (K) acting on the rotor. In a bearing support tube (26) positioned in the stator a radial anti-friction bearing (28) is located on which a shaft (30) of the rotor is mounted. An axial anti-friction bearing is configured between a free end of the rotor shaft (30) and a counterpiece fixed to the stator. Said counterpiece presents a thrust element (56; 156) which is made of a bearing material and mounted in a moulded elastomer element (70) which in turn is supported on a housing part (16) of the axial ventilator. The moulded elastomer element (70) dampens and reduces the transmission of rattling noises to the ventilator housing (16).