Rudder device
AssigneeKvaerner A.S.
InventorKullmann Birger
Life of this patent
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Abstract
A rudder device for water-going craft or aircraft, where there is provided in the vessel a cavity (21) which is open to the outside of the vessel. In the cavity there is provided a body (2) which can rotate about an axis (3), which extends in the cavity (21) and out through the opening (22). The body (2) supports a rudder blade (7) which is fixed or movable in relation to the body (2) substantially in the direction of the axis of rotation (3) through the opening (22) and arranged to be secured by the body (2) after having been moved. The vessel is steered by turning the body (2) by the vessel's steering device.
Claims4
A rudder device and a craft having a craft's skin, comprising:
- a cavity having an opening through the craft's skin;
- a body being mounted in the cavity in such a manner that the body rotates about an axis which extends from an inner section of the cavity and through the opening and is rotated by a manoeuvering device;
- a rudder blade extending substantially in a rudder blade plane the rudder blade having an upper end and a lower end;
- a through-going slot in the body having an upper opening end and a lower opening end, the through-going slot being adapted to receive the rudder blade in such a way that the rudder blade is moveable between a first position whereby the upper end of the rudder blade extends out of the upper opening end of the through-going slot and a second position whereby the upper end of the rudder blade is substantially aligned with the upper opening end of the through-going slot;
- and
- wherein the rudder blade is translationally movable in the slot.
Dependencies are inferred from the claim text.