Fan blade fabrication system
US4826405A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 1988 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Jun 20, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S416/03
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A system for fabricating fan blades wherein the assembly includes a flat hub plate having generally radially oriented notches defined therein intersecting the plate periphery. Individual blades each include a hub connection portion adjacent an inner end region which includes parallel flat portions angularly related to the general blade configuration interconnected by a transition portion. The flat blade portions are located upon opposite sides of the hub plate and the transition portion extends through the hub plate notch. The flat portions are attached to the hub plate, and by predetermining the position of the hub connection configuration on the blade, the fan characteristics can be predetermined and accurately duplicated. The system permits a standard set of tools to form a variety of sizes of fan blade components having various characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.