Air cycle machine with seal shaft
US9470104B2 · kind B2 · utility
0Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2013 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Jan 9, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2220/50
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A seal shaft for use in an air cycle machine has two axial edges. An axial distance is measured between contact faces at the axial edges, with a tolerance to the dimension. A greatest variation between the axial distance at a plurality of spaced locations on the edge face is maintained with a ratio of the greatest variation to the tolerance being less than 0.2. A rotor assembly, an air cycle machine and a method are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.