Device for increasing the steering effect of a rudder
DCFirst Claim
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1. An apparatus for enhancing the steering effect of ship rudders comprising;
- rudder with at least one passageway for supplying seawater to ducts in the rudder, anda profile element extending substantially vertically at a leading edge of the rudder and being pivotable about a generally vertical axis,wherein distribution ducts formed between the profile element and the rudder communicate with said passageway and are adjustable so that relative movement of the profile element and the rudder causes seawater to be discharged along the rudder surface facing abaft.
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Abstract
An apparatus for enhancing the steering effect of ship rudders comprising a rudder with at least one passageway for supplying seawater to ducts in the rudder, and a profile element extending substantially vertically at a leading edge of the rudder and being pivotable about a generally vertical axis, wherein distribution ducts formed between the profile element and the rudder communicate with the passageway and are adjustable so that relative movement of the profile element and the rudder causes seawater to be discharged along the rudder surface facing abaft.
5 Citations
22 Claims
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1. An apparatus for enhancing the steering effect of ship rudders comprising;
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rudder with at least one passageway for supplying seawater to ducts in the rudder, and a profile element extending substantially vertically at a leading edge of the rudder and being pivotable about a generally vertical axis, wherein distribution ducts formed between the profile element and the rudder communicate with said passageway and are adjustable so that relative movement of the profile element and the rudder causes seawater to be discharged along the rudder surface facing abaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for enhancing steering effect of a ship rudder, comprising the steps of:
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supplying seawater to a rudder duct; pivoting a profile element relative to said rudder duct to thereby direct said seawater along a surface of said rudder. - View Dependent Claims (22)
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Specification