Turbine disk interstage seal anti-rotation system
US5320488A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1993 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | Jan 21, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D1/0876
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An anti-rotation system for an interstage seal located in a gas turbine engine of a type having a turbine section including a first stage disk having a rearwardly extending aft shaft and a second stage disk. The interstage seal includes a rearwardly projecting conical arm mounted on the first stage disk. The interstage seal anti-rotation system includes a key inserted within an opening formed between the aft shaft and the conical arm for preventing circumferential movement between the aft shaft and the conical arm by providing a double shear plane between the aft shaft and the conical arm. A circumferential wire is inserted within a slot formed in the conical arm and a groove on the key for preventing axial movement of the key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.