Methods and systems for mitigating distortion of gas turbine shaft
US8820046B2 · kind B2 · utility
72Cited by
14References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2010 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | May 27, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/114
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems for mitigating distortion of a shaft of a gas turbine engine are provided. One method comprises at least one step of applying intermittent rotary power to a shaft of a gas turbine engine. The step of applying intermittent power to the shaft is performed during a period where conditions of temperature differential in the engine exist capable of distorting the shaft. The methods and systems shorten the time needed to start a gas turbine engine in such a way that bowing of a shaft is not a significant problem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.