Starting system for turbine engines
US4922708A · kind A · utility
6Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1989 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Feb 2, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C7/236
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A starting system for a turbine engine comprises a single D.C. electric motor that drives both a positive displacement fuel pressure boost pump and a positive displacement metering pump. A multiple position recirculation valve is positioned between the metering pump and a starting fuel reservoir for shunting fuel to tank so as to enable the D.C. motor to rapidly achieve full speed. When start parameters are sensed by a computer, the recirculation valve is closed which directs full fuel pressure to the starting fuel reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.