Dual jet boat pump
US4031844A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1976 |
| Grant date | Jun 28, 1977 |
| Priority date | — |
| Expiry date | Mar 11, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H11/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A double suction, double volute pump for propelling a boat having each volute exhaust through a separate jet nozzle. The pump housing defines two intake passageways leading upward to either side of a double suction impeller. The housing further provides double volutes which receive water from each side of the double suction impeller and deliver it to dual nozzles thereby creating twin jets which may be employed to propel and control the boat. The double volutes each extend substantially full circle about the housing and terminate in elbows which lead to the nozzles. The nozzles are placed horizontally equidistant from the centerline of the impeller shaft and are controlled by steering linkages to operate in unison. Reversing control gates may be operated either together for reversing or independently for slow speed steering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.