Apparatus for control of stator wakes
US8042483B2 · kind B2 · utility
0Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2009 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Jun 19, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63G2013/022
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention as disclosed is an apparatus that controls the wake of stator blades on an underwater vehicle. The apparatus comprises one or more stator blades each with a movable trailing edge that when actuated in a controlled manner produces a periodic flapping motion upstream of a propulsion rotor. The controlled periodic flapping of the trailing edge the fills the stator blade wake enough to overcome the stator blade's own drag and fill its wake deficit. This has the effect of reducing the blade rate tonal noise of the propulsion rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.