A method is provided for manufacturing a rotor body of a Magnus-type rotor. The method includes providing a plurality of arcuate panels, wherein each of the panels has an arc-length less than a predetermined circumference of the rotor body. The method further includes positioning at least three such arcuate panels in mutual edge-wise abutment to form circumferentially a hollow cylindrical loop, wherein longitudinal edges of adjacent panels are mutually attached to each other. The method further optionally includes co-axially stacking one above another at least two loops of substantially similar diameter. The method further includes connecting edges of adjacent loops to define the rotor body of a predetermined height.

A method is provided for manufacturing a rotor body of a Magnus-type rotor. The method includes providing a plurality of arcuate panels, wherein each of the panels has an arc-length less than a predetermined circumference of the rotor body. The method further includes positioning at least three such arcuate panels in mutual edge-wise abutment to form circumferentially a hollow cylindrical loop, wherein longitudinal edges of adjacent panels are mutually attached to each other. The method further optionally includes co-axially stacking one above another at least two loops of substantially similar diameter. The method further includes connecting edges of adjacent loops to define the rotor body of a predetermined height.

The present invention concerns a Magnus rotor comprising a carrier arranged in the interior of the Magnus rotor, a rotor which in operation of the Magnus rotor rotates about the carrier, a bearing which carries the rotor on the carrier and a heating device provided for producing heated air in the interior of the carrier. The carrier has at least one opening at its outside, which connects the internal space in the carrier to the intermediate space between the carrier and the rotor in such a way that air can pass through between those two spaces.

The present invention concerns a Magnus rotor comprising a carrier arranged in the interior of the Magnus rotor, a rotor which in operation of the Magnus rotor rotates about the carrier, a bearing which carries the rotor on the carrier and a heating device provided for producing heated air in the interior of the carrier. The carrier has at least one opening at its outside, which connects the internal space in the carrier to the intermediate space between the carrier and the rotor in such a way that air can pass through between those two spaces.

The present invention concerns a Magnus rotor comprising a carrier, and a rotary body mounted rotatably to the carrier, as well as a drive device for driving the rotary body. The carrier has at least one opening which connects an internal space in the carrier with an external space in such a way that air can pass through between those two spaces. The invention further concerns a method of cooling elements of a Magnus rotor, a method of heating a rotary body of a Magnus rotor and a ship.

The present invention concerns a Magnus rotor comprising a carrier, and a rotary body mounted rotatably to the carrier, as well as a drive device for driving the rotary body. The carrier has at least one opening which connects an internal space in the carrier with an external space in such a way that air can pass through between those two spaces. The invention further concerns a method of cooling elements of a Magnus rotor, a method of heating a rotary body of a Magnus rotor and a ship.

The invention pertains to a Flettner-type type rotary rigging (100) comprising a tower (131, 132) comprised inside a cylindrical outer skin (121) centered on a vertical axis (110) of rotation and comprising a connection with the cylindrical outer skin (121) and comprising a tower structure consisting of an assembly of structural members comprising wood fibers

The invention relates to vessel (1) comprising a hull (3) and a deck (2), a substantially cylindrical rotor (6) having a peripheral wall (8) rotatable with respect to the deck (2) around a longitudinal center line (20), the rotor (6) being mounted on the deck (2) in such a manner that in an operational state the rotor (6) is substantially vertically oriented, characterized in that a flap (18) is arranged near the rotor (6) extending substantially in a plane which is parallel to the rotational axis of the rotor (6), and the length of the flap chord (Rfc) is between 20%-90% of the rotor (6) diameter (Dr), wherein the position of the flap (18) can be adjusted with reference to the longitudinal center line (20).

The invention relates to vessel (1) comprising a hull (3) and a deck (2), a substantially cylindrical rotor (6) having a peripheral wall (8) rotatable with respect to the deck (2) around a longitudinal center line (20), the rotor (6) being mounted on the deck (2) in such a manner that in an operational state the rotor (6) is substantially vertically oriented, characterized in that a flap (18) is arranged near the rotor (6) extending substantially in a plane which is parallel to the rotational axis of the rotor (6), and the length of the flap chord (Rfc) is between 20%-90% of the rotor (6) diameter (Dr), wherein the position of the flap (18) can be adjusted with reference to the longitudinal center line (20).

A magnetic levitation rotor sail is proposed. The rotor sail may include a coil unit provided at a lower portion of a body of the rotor sail, and an electromagnet configured to levitate the coil unit. The rotor sail may also include a support member supporting the electromagnet, and a gap sensor provided at the support member and configured to measure a gap between the coil unit and the electromagnet.