Turbomachinery blade tip cap configuration
US4020538A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1974 |
| Grant date | May 3, 1977 |
| Priority date | — |
| Expiry date | Dec 9, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49927
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An improved tip cap configuration for a turbomachinery blade includes tip cap seats formed integrally with and located on the inner sides of a hollow turbomachinery blade. Tip cap retaining members are also formed integrally with the inner wall of the blade and are spaced a short radial distance from the tip cap seats. The blade is initially provided with a flared open end and the tip caps are positioned on the seats and the flared end is crimped so as to capture the tip cap between the seats and the retaining members. The crimping operation is stopped at a point wherein a smooth outer contour is obtained for the blade in the region of the tip cap. A method of making such a blade is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.