Aircraft propulsion system with hydrocarbon and hydrogen fuel adaption for reduced condensation trail impact
US11739700B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2022 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Mar 17, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/311
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An aircraft propulsion system includes a hydrocarbon fuel store, a hydrogen fuel store, an engine system capable of producing thrust by combusting hydrocarbon fuel and/or combusting or oxidising hydrogen fuel, a conveying system to convey hydrocarbon and hydrogen fuel from the fuel stores to the engine system and a control system to control the respective flow rates of the fuel within the conveying system. The control system adapts the fractions of the total fuel energy flow rate to the engine system represented by the hydrocarbon and hydrogen fuel energy flow rates in order to reduce climate warming impact caused by at least one of carbon dioxide, water vapour and condensation trails and/or increase climate cooling impact caused by condensation trails produced by the aircraft propulsion system compared to a dual-fuel propulsion system in which a reserve of hydrocarbon fuel is entirely combusted before any of a reserve of hydrogen fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.