Air foil journal bearing
US11441599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2021 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Apr 28, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C27/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Provided is an air foil journal bearing including a bearing housing; a bump foil disposed inside the bearing housing, having an uneven-shaped elastic bump, having one end coupled and fixed to the bearing housing in the circumferential direction, and having the other end formed as a free end; an outer top foil disposed inside the bump foil; an inner top foil disposed inside the outer top foil; and a middle top foil interposed between the outer top foil and the inner top foil, and coupled and fixed to the bearing housing, thereby preventing deviation of the free end of the bump foil in the width direction due to vibration occurring when a rotor is rotated at a high speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.