Nozzle with insulating air gap and seal to close the gap
US11085633B2 · kind B2 · utility
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6References
16Claims
0Family size
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Key dates
| Filing date | Jan 15, 2019 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Aug 2, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23R2900/00012
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A nozzle for a fuel injector of a gas turbine engine, the nozzle having an insulating air gap adjacent a conduit for carrying fuel, the air gap formed between a pair of concentrically arranged annular walls, wherein the pair of annular walls are arranged to move independently to accommodate differential thermal expansion, the nozzle further including: a channel extending circumferentially around a surface a first of the pair of annular walls, facing a second of the pair of annular walls; and a sealing member received in the channel, to close the insulating gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.