Steering system and an associated vessel

Details Steering system and an associated vessel Steering system and an associated vessel

2006-10-26

2008-09-02

Olson, Lars A (Department: 3617)

Ships

Steering mechanism

Rudders

C114S1440RE

Reexamination Certificate

active

07418912

ABSTRACT:
A steering system for a vessel is provided. The steering system includes an electric motor assembly and a steering linkage for transmitting the rotational output of the electric motor assembly to the vessel's rudder. The steering system may include at least three linkage members. The steering system may provide a variable output torque that corresponds at least partially with the variable required torque of the rudder at different rudder angles. The steering system may partially decouple the electric motor assembly from vertical movements in the rudder. Embodiments may include additional motor assemblies and steering linkages. The additional motor assemblies and steering linkages may provide an opposing force to reduce flutter within the system and/or be used to reduce the load of any one electric motor assembly.

REFERENCES:
patent: 3073275 (1963-01-01), Fenzl et al.
patent: 3147730 (1964-09-01), Specht
patent: 5628268 (1997-05-01), Brydel et al.
patent: 6026759 (2000-02-01), Hazelett et al.
Rolls-Royce: Marine;Product Range: Motion Control: Steering Gear: Tenfjord Rotary Vane Steering Gear(visited Jul. 14, 2006) (1 page) http://www.rolls-royce.com/marine/product/motion/steer/tenfjord.jsp.
Rolls-Royce Marine;Product Range: Motion Control: Steering Gear(visited Jul. 14, 2006) (2 pages) http://www.rolls-royce.com/marine/product/motion/steer/default.jsp.
Rolls-Royce Marine;Product Range: Motion Control: Steering Gear: Frydenbö Rotary Vane Steering Gear(visited Jul. 14, 2006) (2 pages) http://www.rolls-royce.com/marine/product/motion/steer/frydenbo.jsp.
Rolls-Royce® Fact Sheet; The Frydenbö Range.

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