Series waterjet propulsion pumps for marine vehicles
US3985094A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1976 |
| Grant date | Oct 12, 1976 |
| Priority date | — |
| Expiry date | Feb 20, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H11/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A waterjet propulsion system having at least two pumps in series so that low from a hull or other intake is directed through a first waterjet propulsion pump; and then via a two-position diverter valve, either out to a thrust nozzle, or to and through a second waterjet propulsion pump having a thrust nozzle. Subsequent series-pump units and diverter valves may follow to provide as many propulsion stages as required for power requirements. Each pump unit is driven by its own power unit which may be shut down when flow is diverted to the preceding unit's thrust nozzle. Good efficiencies are thereby attained over a wide range of power and speed requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.