Ram air turbine with high power density generator and self-contained fluid cooling loop
US6580179B2 · kind B2 · utility
25Cited by
11References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Jun 7, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ram air turbine system provides liquid cooling of its generator by employing a closed loop liquid cooling line originating from a pump in the gearbox of the system. In the preferred embodiment the pump may be a pitot pump to which gearbox lubricating oil may be channeled along a trough that is located in the gearbox. At least a portion of the trough is immersed in the oil which travels along the trough toward the pump in response to turbine shaft rotation. The oil is directed into a cooling jacket which is integral to the generator and then to a heat exchanger exposed to airflow. The oil is then returned to the gearbox.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.