Multi-lobe bearing and turbocharger
US11719125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2021 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Dec 29, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/24
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A semi-floating bearing (multi-lobe bearing) includes a radial bearing surface that is formed on an inner circumferential surface of a body, and that includes a plurality of arcuate surfaces having mutually different centers of curvature and arranged adjacent to each other in a circumferential direction of the body; and axial grooves formed on the radial bearing surface and extending in an axial direction of the shaft, a center position of the axial groove in the circumferential direction being located at a position spaced apart rearwardly from a boundary portion between the plurality of arcuate surfaces in the circumferential direction of the shaft within an area from the boundary portion to a central position of the arcuate surfaces in the circumferential direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.