More electric aircraft power transfer systems and methods
US7552582B2 · kind B2 · utility
37Cited by
29References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2005 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | May 21, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/40311
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbofan gas turbine propulsion engine includes a system to transfer power from the low pressure turbine to the high pressure turbine and/or extract additional load from the low pressure turbine during certain turbofan engine operational conditions. The systems include a hydrostatic power transfer system that includes a hydraulic pump and a hydraulic motor coupled to the low pressure and high pressure turbine, respectively. The systems additionally include a mechanical and electrical load shifting/loading sharing systems that use clutches and gear assemblies to share and/or shift load between the turbines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.