Francis-type runner for a hydraulic machine, hydraulic machine including such a runner, and method for assembling such a runner
US9175662B2 · kind B2 · utility
3Cited by
33References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2009 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Jun 7, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49316
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a Francis runner for a hydraulic machine that comprises a belt with a rotational symmetry about a central axis of the runner, a ceiling with a rotational symmetry about the axis, and a plurality of blades (21, 22) extending between the ceiling and the belt. The runner also includes at least two elements (41, 42, 43, 61, 62, 63) partially defining at least the belt and/or the ceiling while at least one edge (231, 232, 241, 242) of a blade (21, 22) is inserted between the two elements defining the belt and/or the ceiling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.