Centrifugal deaerator for a turbomachine
US11401863B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2018 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Aug 9, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/609
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a centrifugal deaerator for an air/oil mixture of a turbomachine, comprising: an annular housing (10) for the centrifugal separation of said mixture, arranged around a hollow shaft (11); axial inlets (14) for the flow of said air/oil mixture into said housing (10); a pinion (20) for rotating said housing (10); and radial oil outlets (15) and oil-free air outlets (16), characterised in that it comprises a metal foam (50) housed in said housing (10) by partially extending along the axial direction (XX′) so as to define two successive spaces, a foam-free space (51) and a foam-lined space (52), said foam-free space opening up towards said axial inlets. A device can be advantageously added to the hollow shaft in order to reduce the free-vortex phenomenon and to thereby significantly reduce the load losses of the deaerator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.