Gas turbine engine motoring with starter air valve manual override
US10787968B2 · kind B2 · utility
1Cited by
70References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2016 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Aug 1, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/304
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for gas turbine engine motoring includes an air turbine starter coupled to a gearbox of a gas turbine engine and a starter air valve in fluid communication with the air turbine starter to drive motoring of the gas turbine engine responsive to a regulated pressure from a compressed air source. A manual override of the starter air valve is adjustable to one or more predefined intermediate positions that partially open the starter air valve to limit a motoring speed of the gas turbine engine below a resonance speed of a starting spool of the gas turbine engine responsive to the regulated pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.