Dual propeller drive system for a ship
US11046404B2 · kind B2 · utility
2Cited by
20References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2019 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Sep 13, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K49/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A drive system is provided for propelling a ship through water. The drive system has two propellers. The propellers are coaxial so that one propeller engages the incoming water first, and the other propeller engages the water after it passes through the first propeller. The drive system has a stator that causes a first rotor to rotate. The first rotor is connected to, the first propeller to cause the first propeller to rotate. The first rotor also causes a second rotor to rotate. The second rotor is connected to the second propeller to cause the second propeller to rotate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.