Engine turning motor via pneumatic or hydraulic motor
US10753225B2 · kind B2 · utility
3Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2017 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Sep 7, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Pressurized fluid is stored while a jet engine is running. After engine shutdown, the fluid is used to drive a pneumatic or hydraulic turning motor that rotates the engine's High Pressure (HP) rotor. The rotation encourages even heat distribution across the HP rotor and thus prevents bowing of the HP rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.