Hollow vane, and associated production method
US10132177B2 · kind B2 · utility
1Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2014 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Mar 28, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B4/008
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hollow vane, includes a main portion, of which the cavity is closed by a cover, that is produced by expanding the main portion relative to the cover, for example by means of differential thermal expansion, then by placing the cover at the bottom of the opening of the cavity, before allowing the main portion to close again, closing a nesting between a protrusion at the bottom of the cover and a widening at the bottom of the opening. The disadvantages linked to the use of welding, glue or even assembly parts are as such avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.