Knife edge with increased crack propagation life
US10167729B2 · kind B2 · utility
0Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2014 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Jan 14, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/175
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A knife edge seal includes a pedestal and a knife edge with a tip and a base. The base rests on the pedestal. The base has a first width and the tip has a second width, and the ratio of the first width to the second width is in the range of 5:1 to 15:1. A gas turbine engine and a method of sealing a high pressure area from a low pressure area are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.