Hinge end seal
US5323965A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 1993 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | May 26, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02K1/805
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A gap seal for convergent/divergent flap hinge ends to spaced disc and wall surfaces in a 2-D nozzle of a gas turbine engine is provided. The seal employs at least two cups resiliently mounted to the hinge ends, which cups independently translate axially and resiliently to contact the spaced surfaces at different or varying gaps to seal same. The translating cup seals of the invention thus maintain a constant seal in the gaps between the hinge ends and such surfaces at varying C/D hinge positions and varying operating conditions in the 2-D nozzle. That is, the cups independently maintain their seals across gaps as they expand or contract due to thermal changes as well as across gaps of different sizes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.