Propulsion system for a vertical and short takeoff and landing aircraft
US5209428A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1990 |
| Grant date | May 11, 1993 |
| Priority date | — |
| Expiry date | May 7, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C29/0025
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention is a propulsion system for a V/STOL type aircraft. In detail, the invention comprises a turbofan engine including a fan section, compressor section, combustion section, turbine section and nozzle section. The turbine section comprises a low-pressure turbine portion coupled to and driving the fan section and a high-pressure turbine portion coupled to and driving the compressor section. A lift fan is coupled to the fan section by means of a drive shaft. A clutch is incorporated for decoupling the lift fan from the fan section. A mechanism is incorporated for extracting additional power from the low-pressure turbine portion of the turbine section to drive the lift fan that augments the basic engine thrust for V/STOL operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.