Seal including a non-metallic abradable material
US5388959A · kind A · utility
23Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1993 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Aug 23, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan assembly for a gas turbine engine for aircraft has a stator casing made of a first material and an annular abradable seal structure made of a second material comprising an epoxy foam having heat expandable, thermoplastic microballoons filled with a chemical which expands when the second material is cured such that the second material bonds directly to the stator casing upon curing thereby minimizing the number of processing steps during manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.