Fully bladed closure for tangential entry round skirt dovetails
US7921556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2007 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Dec 1, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49716
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fully bladed closure design for a turbine wheel with tangential entry. A set of the final three buckets including a bladed closure bucket are disposed about a wheel margin with two buckets adjacent to the bladed closure bucket secured to the wheel margin by the dovetails. The closure bucket is secured to adjacent buckets by a combination of one or more retaining keys and to the margin by one or more retaining pins. The bladed closure bucket and the adjoining faces of the adjacent buckets have flat skirts providing suppport from the retaining keys across the full axial width of the bladed closure bucket and the adjacent buckets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.