Air turbine starter with angular contact thrust bearing
US6969235B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2003 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Dec 24, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/23
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An air turbine starter for use in aircraft or other gas turbine engine applications. In a particular embodiment, the air turbine starter has a thrust bearing having an outer ring, an inner ring, a cage and balls. The outer ring has a first shoulder, a second shoulder and a race surface therebetween to receive the balls. The second shoulder is smaller than the first shoulder. The orientation of the cage is such that the pilot of the cage is aligned to the first shoulder of the outer ring. The raceway curvature of the inner ring, the internal clearance, and clearance between the pilot and outer ring are all increased. An improved thrust bearing is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.