Leaf-type foil thrust bearing
US4597677A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 11, 1985 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Oct 11, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/24
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A leaf-type foil thrust bearing, such as may be employed in a high-speed, light-load application, particularly, as a thrust bearing for a turbo charger, having a significantly reduced manufacturing cost. A plurality of recesses are formed in a thrust surface of a seat member disposed opposite the bearing surface of a rotating bearing member. The recesses gradually become shallower from their forward edges to the rearward edges in the direction of rotation of the rotating members. Corrugated foils are disposed in each of the recesses, with the corrugation height of each of the foils being constant. Top foils cover the respective corrugated foils, and each of the top foils has a forward edge attached to the thrust surface adjacent the forward edges of each of the recesses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.