Aircraft system including a cryogenic fluid operated auxiliary power unit (APU)
US11731780B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2021 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Sep 9, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/50
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An aircraft system includes a turbine engine having a compressor, a combustor having an inlet and an outlet, and a turbine having an inlet portion and an outlet portion. An auxiliary power unit (APU) is operatively connected to the turbine engine. The APU includes a compressor portion, a generator, and a turbine portion. The compressor portion is operatively connected to the turbine portion through the generator. A source of cryogenic fluid is operatively connected to the turbine engine and the APU. A heat exchange member includes an inlet section operatively connected to the source of cryogenic fluid, a first outlet section operatively connected to the turbine engine and a second outlet section operatively connected to the compressor portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.