Control method and control system for a controllable pitch marine propeller
US7473076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2004 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Dec 26, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H25/50
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control method and system for a controllable pitch marine propeller including operating modes comprised of a maneuvering mode and a cruise mode and check modes comprised of an engine check mode and propeller check mode. The cruise mode provides for wide open throttle acceleration and power stop. Smooth transition sub-modes are provided for providing smooth transition between cruise mode and maneuvering mode and vice versa. The system operates by a lever (28) which controls a pitch control unit (10) which in turn controls engine speed and also the pitch of propeller blades (12) of propeller (14). Thus, dependent on the position of the control lever (28) in either maneuvering mode or cruise mode, an appropriate engine speed and propeller pitch is selected automatically for driving a watercraft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.