Stator vane and impeller-drive shaft arrangements and personal watercraft employing the same
US6796858B2 · kind B2 · utility
9Cited by
16References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2003 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Apr 14, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H2011/081
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention is directed to a thick stator vane that effects continuous acceleration of the water stream within the jet pump, a non-uniform spacing of stator vanes or impeller blades to reduce noise output of the jet pump during operation, and a coupling structure positioned between the impeller and engine that prevents transfer of axial thrust to the engine caused by jet pump failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.