HYBRID JOURNAL BEARING

摘要

A Hybrid journal bearing, which can operate either as hydrodynamic or as electromagnetic, or as hybrid (hydrodynamic and electromagnetic simultaneously), aiming at the exploitation of advantages of both types of bearings, is presented. It is constituted from stator (3), the two lids (2), the internal ring (7), the paramagnetic parts of the internal ring (13), the inductors (4) and the lubricant pipe (1). Also, sensors (6) are added, so that it is possible to monitor the place of the rotor (5) each moment, in order to control the pressure of the lubricant and to control the current of the inductors, by the controller. This invention, can be applied in experimental level and also in industrial applications, such as in turbine vacuum machines and in energy production, in natural gas compressors, in plants of electric power production or in aeronautics applications, where the need of continuous operation of the machines for a long time in high revolutions (> 20.000RPM), or in low revolutions in waiting situation, as well as in thrust systems of boats, is necessary.