Abstract: The present invention relates to a rim driven propeller unit for a vessel, where a number of permanent magnets (4) are arranged round the propeller unit's rotatable rotor housing (1), comprising a number of propeller blades (3), and a number of permanent magnets round the propeller unit's external, stationary casing (2) 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 for 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.

Abstract: An anchor handling device for an anchor handling vessel, the anchor handling device being adopted to bring an anchor from a substantially horizontal position resting at an aft deck of the vessel, to a substantially vertical position hanging astern of the vessel, wherein the device comprises two arms (7, 7?) which at first ends are pivotally arranged about a substantially horizontal axis being substantially perpendicular to the length axis of the vessel, and which axis substantially coincides with a rotational of a stern roller (4) arranged at the aft end of a cargo deck (2) of the vessel, and where the arms (7, 7?) at their second ends support an anchor handling roller (8) having an axis of rotation being substantially parallel to the axis of rotation for the arms (7, 7?), is described.

Abstract: Electrical machine with a rotor with magnets carried by an annular carrier, in which a magnetic field is created over an air gap between two rotor parts, at which an ironless stator with windings is arranged. A space saving machine is achieved with a stator which is assembled of sections with channels for circulation of coolant, and which has windings with an annular, compact central part providing the active part of the stator. A method for manufacturing stator sections for such electrical machines is described, where a winding is embedded in an electrically insulating casting material for providing a rigid element. A coil is arranged in one part of a bisected shell housing or a bisected casting mold, and the shell housing or mould is closed, casting material is introduced through an opening and the inner part of the housing or mould is subject to underpressure and possibly vibration.

Abstract: The invention relates to a device for a prechamber unit (10) of a gas engine, comprising a prechamber unit (10) in the form of an elongated body (12) arranged to be placed in an upper part of the engine's cylinder, and where the elongated body (12) comprises a prechamber gas valve (20) and an ignition means (22) arranged side by side, and one or more channels (24) for supply of fuel gas via the prechamber gas valve (20) to a prechamber (26) in a lower part of the elongated body (12). Said prechamber (26) comprises further in the axial direction, an elongated cavity (28) with nozzles (30) placed at the end for supply of ignited fuel gas to the engine's cylinder with the help of the ignition means (22). The elongated cavity (28) in the prechamber (26) is divided into several connected, and in cross-section, graduated or tapered cavities (28a, 28b, 28c), where an uppermost cavity (28a) is widest in the cross-sectional direction and a bottom cavity (28c) is narrowest in the cross-sectional direction.

Abstract: The present invention concerns an apparatus and method for attaching a ship rudder to a rudder shaft. The rudder shaft includes a cylindrical portion and an expanded flange part with a cylindrical portion, followed by a conical portion. The rudder includes a rudder element and a flange element for attachment to the rudder element. The flange element includes an internally cylindrical portion for mating, sliding and sealingly surrounding the cylindrical portion of the rudder shaft and an internally cylindrical portion for sliding, mating arrangement around the cylindrical portion of the flange part of the rudder shaft. The rudder element also includes a conical opening for mating attachment to the conical portion of the conical portion of the rudder shaft. It is provided channels for applying hydraulic pressure between the expanded flange part of the flange element, and means for tightening the flange element to the rudder element.

Abstract: A system is described for handling a wire, a chain, a cable, etc. (12) onboard a vessel, comprising a number of winches (10) to pull in and let out said wire, chain, etc. (12), and also a number of tow pins (14) and shark jaws (16), mounted in an area at the stern of the vessel, and which is arranged to guide and/or to hold said wire, chain, etc. (12) that runs from or to said winches (10). The system further comprises at least one centering device (18) arranged between said tow pins (14) and shark jaws (16) and winches (10), preferably adjoining said tow pins (14) and shark jaws (16), where the centering device (18) comprises at least two guiding plates (20) that can be raised and lowered and which are arranged to guide and possibly to hold said wire, chain, etc. (12).

Abstract: A propulsion system 2 for a waterborne vessel 4 having a hull structure 6, typically for a full or semi planing boat. The propulsion system 2 has a pod housing 8 having a front end 10 and a rear end 12, a propeller 14 and a propeller shaft 16. The propeller 14 is disposed externally at the front end 10 of the pod 8 and is rotatable about a longitudinal axis 18of the propeller shaft 16, the propeller shaft 16 being drivingly connected to a drive assembly. The drive assembly has a transmission unit 20 and a power unit 22 in the form of a diesel engine. In FIG. 1 the diesel engine is shown disconnected from the transmission unit 20. The power unit 22 is disposed within the structure of the hull 6 and, in this particular embodiment; the transmission unit 20 is disposed substantially outside the structure of the hull 6. The hull 6 is formed with a port 24 through which an interface unit 26 extends.

Abstract: Device for a tow pin to lead a cable, such as a chain, wire, hawser, etc., onboard a vessel, comprising a number of cylinders that can be hoisted and lowered, where each of the cylinders comprises a rotary stopping element, facing each other, to prevent that the cable runs out of the tow pin. Said stopping element can be turned outwards with the help of a piston arrangement arranged in the cylinder, and that the stopping element can be turned outwards in the whole of the working area of the tow pin.

Abstract: A propulsion and steering unit for a waterborne vessel. The propulsion and steering unit is in the form of an azimuth thruster 1 comprising a propeller 2 fixed to one end of a propeller shaft 4, which is rotatable about a longitudinal axis 6. Fixed to the other end of the propeller shaft 4 there is a beveled gear crown wheel 8. The crown wheel 8 is engaged with a driving pinion gear 10 and, in this particular embodiment, the crown wheel 8 is driven in a direction 7 by the driving pinion gear 10. The driving pinion gear 10 is mounted on a vertical drive shaft 12, which is connected to drive means (not shown) for the vessel. A longitudinal axis 18 of the drive shaft 12, about which the drive pinion 8 rotates, is substantially perpendicular to the longitudinal axis 6 of the propeller shaft 4 about which the propeller 2 rotates.

Abstract: A propulsion system 2 for a waterborne vessel 4 comprises a hull structure 6, typically for a full or semi planing boat. The propulsion system 2 comprises a pod housing 8 having a front end 10 and a rear end 12, a propeller 14 and a propeller shaft 16. The propeller 14 is disposed externally at the front end 10 of the pod 8 and is rotatable about a longitudinal axis 18 of the propeller shaft 16, the propeller shaft 16 being drivingly connected to drive means. The drive means comprises a transmission unit 20 and a power unit 22 in the form of a diesel engine. In FIG. 1 the diesel engine is shown disconnected from the transmission unit 20. The power unit 22 is disposed within the structure of the hull 6 and, in this particular embodiment; the transmission unit 20 is disposed substantially outside the structure of the hull 6. The hull 6 is formed with a port 24 through which an interface unit 26 extends. The interface unit 26 provides means to transmit the torque of the power unit 22 to the transmission unit 20.

Abstract: A trawling vessel is provided with a trawl net (5) for catching marine bio-resources, with a trawl sack (3) attached aft on a trawl net (5) for keeping the catch. The vessel comprises lines (51, 61) for towing and hauling the trawl net (5), and trawl drums (6) for hauling the trawl net (5). A lock chamber (1) is provided in a stern (21) of the vessel and has a main portion of its volume arranged below the design water line of the vessel. The lock chamber (1) is arranged for hauling the trawl sack (3) with the catch from the sea through a sluiceway (2) in the stern (21), for discharging the trawl sack (3), and for temporarily keeping the catch. A trunk channel (16, 12) leading up from the lock chamber (1) enables the trawl sack (3), in a generally discharged state, to be hauled up through the trunk channel (16, 12) to a deck (24), thereby leaving the catch in the lock chamber (1).