Turning of a propulsion unit
AssigneeABB AB
InventorErkki Mikael Putaansuu
Life of this patent
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Abstract
The present application is a method and apparatus for moving and steering a vessel traveling in water. The arrangement for moving and steering a vessel includes a propulsion unit having a chamber positioned outside the vessel equipment for rotating a propeller arranged in connection with the chamber, and a shaft means connected to the chamber for supporting the chamber in a rotatable manner at the hull of the vessel. At least one hydraulic motor if used for turning the shaft means in relation to the hull of the vessel for steering the vessel. The arrangement also includes a means for altering the rotational displacement of the hydraulic engine.
Claims10
An arrangement for moving and steering a vessel traveling in water, said arrangement comprising:
- a propulsion unit (6) comprising a chamber (5) positioned outside the vessel, equipment for rotating a propeller (4) arranged in connection with said chamber, and a shaft means (8) connected to said chamber (5) for supporting said chamber, in a rotatable manner, at the hull (9) of said vessel,
- at least one hydraulic motor (20) for turning said shaft means (8) in relation to the hull (9) of said vessel for steering said vessel,
- wherein the arrangement comprises means (22) for variably altering the displacement volume of the hydraulic motor (20).
A method for moving and steering a vessel traveling in water, in which method
- the vessel is moved using a propulsion unit (6), which comprises a chamber (5) positioned outside the vessel, equipment positioned inside the chamber for rotating a propeller (4) arranged in connection with said chamber, and a shaft means (8) connected to said chamber for supporting said chamber, in a rotatable manner, to the hull (9) of said vessel,
- the shaft unit (8) is turned, by at least one hydraulic motor (20), in relation to said hull (9) of said vessel for steering said vessel,
- wherein the turning speed of said shaft means (8) in relation to said hull (9) is altered by variably altering the displacement volume of said at least one hydraulic motor (20).
Dependencies are inferred from the claim text.