摘要:
A spring cluster disc (14) for a foil thrust bearing (10) is provided with a plurality of sets (52) of springs (62,64,66). The springs are configured to provide varying spring force and thus varying stiffness in radial and circumferential directions.
摘要:
Cooling is provided for a foil journal bearing by means of flow openings in the individual overlapping foils without adversely affecting the compliance of the foils.
摘要:
Cooling is provided for a foil journal bearing by means of flow openings in the individual overlapping foils and/or axially extending slots formed in the high lubricity coating on the surface of the foils.
摘要:
A foil thrust bearing having an underspring formed from a uniform thickness sheet wherein the underspring includes a plurality of arcuate tabs extending toward the thrust disk in the direction of rotation of the thrust runner.
摘要:
An electrical machine (22) incorporates foil bearings (24) which are radially interposed between the stator assembly (26) and the permanent magnet of a rotor shaft (12), thus reducing the required axial length of the shaft and increasing the rotational speed at which the shaft bends incident to resonance.
摘要:
A high load capacity journal foil bearing and more particularly undersprings therefor. The journal foil bearing preferably includes a number of individual pads or foils which are conventionally mounted to a journal and have a pad face proximate a rotating shaft. The undersprings each include a number of curvilinear support beams or corrugations which are varied in width and pitch to optimize the spring force supporting the overlying foil. The underspring is configured to have wider beams at their leading edge and progressively narrower beams for approximately the first one half of the circumferential length.
摘要:
A hydrodynamic process or gas bearing is disclosed which includes an integral thrust disk defining a plurality of foil elements, the radially outer edge of the disk being displaced from the major bearing surface to form a circumferential step having a varying height profile. The integral thrust disk may in the alternative or in addition, include a plurality of radially outwardly extending tabs to locally increase the flexural rigidity of the disk.
摘要:
A foil thrust bearing including a thrust bearing underspring disk having a radially increasing spring force or load capacity. A plurality of spring sections formed in the underspring disk provided improved load capacity and pressure force distribution.