Rolls-royce Marine As

Kongsberg Maritime Cm As

Gunnar Johnsen

Charles Skar

Ole Arnt Marholm

Dag Brandal

Rotor for motor or generator, which rotor () includes a rotor ring (), which rotor includes a yoke formed by yoke segments () which by arrangement to the rotor ring () forms a complete yoke. The yoke segments () are provided with one or more magnet blanks (), which magnet blanks () are formed by one or more permanent magnets ().

Rotor including segmented yoke

The present invention relates to a rim driven propeller unit for a vessel, where a number of permanent magnets () are arranged round the propeller unit's rotatable rotor housing (), comprising a number of propeller blades (), and a number of permanent magnets round the propeller unit's external, stationary casing () housing the rotatable rotor housing, where the permanent magnets round parts of the rotatable rotor housing and the external, stationary casing's circumference are provided located above one another with like polarity, while other parts of the rotatable rotor housing and the external, stationary casing are provided located facing one another with opposite polarity, whereby the rotor housing and the stationary casing are repelled by and attracted to one another respectively, thereby being prevented from coming into contact with one another.

Support of propeller unit for a vessel

In a thruster for a vessel including a hull, the thruster comprises at least one tunnel element and at least one thruster unit. The tunnel element includes at least a part of a through tunnel in the hull when arranged in the hull. The at least one thruster unit and the at least one tunnel element include cooperating fastening devices for detachably fixing the at least one thruster unit in the at least one tunnel element such that the at least one thruster unit is configured to be passed through the tunnel and mounted to the at least one tunnel element, or demounted from the at least one tunnel element and passed out of the tunnel. A method for mounting and demounting a thruster in a tunnel element includes a tunnel element arranged in the vessel of a hull.

Growing community of inventors

Ulsteinvik, Norway

Gunnar Johnsen