Axially fed hydrostatic bearing/seal
US5310265A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1993 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Jun 15, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2240/53
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This invention relates to a hydrostatic bearing having a journal 3 annularly circumscribed by a bearing 2 wherein a high pressure fluid is forced between the bearing and the journal axially. The high pressure fluid flowing axially along the journal in the bearing keeps the journal centered. A roughened or diamond knurled 11 inside surface interrupts the circumferential and axial flow of the fluid for improved rotor stability and less leakage. Other features include a tapered inner bore 9 to increase the bearing stiffness and a sharp edged inlet for greater control of the bearing stiffness and damping. The axially fed hydrostatic bearing combines the seal function and the bearing function for annular fluid flows along a journal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.