Turbine blade for hydroelectric generators
US4946347A · kind A · utility
3Cited by
7References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1988 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Dec 9, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
To reduce the manufacturing expense of turbine blades and specifically, to extensively avoid their stock removal type processing, a blade is constructed of a metallic core and an outer skin which covers at least approximately the entire wetted surface of the turbine blade and is made by molding, from a nonmetallic material such as polyurethane, caoutchouc or similar elastomeric plastic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.