Systems and methods for lifter motor cooling in eVTOL aircraft
US11613350B1 · kind B1 · utility
15Cited by
20References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2022 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Nov 14, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A VTOL aircraft includes a plurality of lift propellers configured to rotated by lift motors to provide vertical thrust during takeoff, landing and hovering operations. The lift propellers are configured to generate a cooling airflow to cool the lift motors during use. During a cruise operation when the VTOL aircraft is in forward motion, the lift propellers may be stowed in a stationary position. Therefore, the cooling airflow may be reduced or eliminated when it is not needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.