Hydrostatic bearing with compensatory fluid injection
US6053636A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1998 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Nov 10, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2240/53
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydrostatic bearing is uniquely configured for improved operability. A hydrostatic bearing (32) has a collar (42) that circumscribes a shaft (18) to define a fluid film annulus (50) for radially confining a load supportive fluid film. An array of pockets (52) distributed circumferentially along a bearing surface (48) communicate with vent regions (64a, 64b) in which the vent pressures are substantially unequal. Supply passages (76) associated with the pockets (52) are oriented at an angle .theta. for injecting fluid into the annulus with an axial directional component directed toward the higher pressure vent region. The orientation angle .theta. compensates for the propensity of the fluid to preferentially feed the low pressure side of the bearing. Further, a hydrostatic bearing (132) has a collar (142) that circumscribes a shaft (118) to define a fluid film annulus (150) for radially confining a load supportive fluid film. An array of pockets (152) distributed circumferentially along a bearing surface (148) communicate with vent regions (164, 164b) in which the vent pressures are not necessarily substantially unequal. Dual supply passages (176) associated with each pocket are or…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.