Gas turbine igniter with ball-joint support
US4903476A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Dec 27, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23R3/283
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An igniter for a combustor of a gas turbine engine includes a body section mounted on a ball joint within a standoff cylinder. The standoff cylinder, in turn, is mounted on the casing of the combustor. An electrode tip, extending from the body section if tightly fitted into a hole in the combustor liner. The ball joint permits substantial transverse motion of the electrode tip to fit it through the hole during installation of the igniter, and to track the position of the hole if it should move relative to the casing due to differential thermal expansion during operation of the combustor. Seals between mating parts prevents the leakage of air from the interior of the casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.