Protective shrouding with debris diverting inflow vanes for pump-jet propulsion unit
US6159060A · kind A · utility
3Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1999 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Aug 4, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H11/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pump-jet type of outboard propulsion unit within a surrounding fluid mem for marine craft or the like, is protectively enclosed within cylindrical shrouding which forms an axial flow passage about the exhaust channel of the propulsion unit through which flow of the fluid medium is induced by rotation of impeller blades. Inflow of the fluid medium to the flow passage is modified at an inlet end of the shrouding by a plurality of angularly spaced vanes attached thereto and extending forwardly therefrom at an angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.