Waterjet propulsion apparatus
US6991499B2 · kind B2 · utility
2Cited by
26References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2003 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Sep 16, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H2011/081
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A waterjet propulsion apparatus having a five blade rotor and an eight blade stator that are located within housing sections that define a water flowpath. The housing and hub are designed such that in operation a nonuniform loading arises on the rotor blades whereby greater pressure impinges on the tip area of the rotor blade than at the hub area of the rotor blade. This configuration increases the efficiency of the waterjet while minimizing negative effects of cavitation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.