Abstract: An anti-fouling arrangement in a marine vessel with a marine propulsion system, the propulsion system comprising at least one driveline housing, a torque transmitting drive shaft extending out of the driveline housing, and at least one propeller mounted on the drive shaft. The at least one propeller is electrically isolated from its drive shaft, wherein each electrically isolated propeller is connected to a positive terminal of a direct current power source, and each metallic component to be protected against fouling is connected to a negative terminal of the direct current power source. A control unit is arranged to regulate the voltage and current output from the direct current power source.

Abstract: A maneuvering device for controlling navigation of a marine vessel is provided. The device has an input source movable between an equilibrium position and at least one displaced position, A variable resistance device adjusts a movement resistance of the input source. A control unit controls the variable resistance device by: obtaining a requested release input of the input source to move from the displaced position towards the equilibrium position, obtaining a longitudinal speed of the marine vessel, and controlling the variable resistance device to adjust said movement resistance of the input source based on the requested release input and the longitudinal speed.

Abstract: The present disclosure relates to a marine propulsion system for a marine vessel, having an engine, a propeller unit having one or more propellers, a transmission arranged between the engine and the propeller unit, a clutch arrangement arranged in connection with the transmission. The clutch arrangement transfers power between the engine and the propeller unit. An input unit is configured to receive an input signal indicative of a propeller speed and to issue a propeller speed reference based on the input signal. The propulsion system comprises a control unit being operatively connected with the propeller unit, the clutch arrangement and the input unit, the control unit is configured to control the propulsion system based on propeller speed references during varying operations and/or speeds of the marine propulsion system.

Abstract: The disclosure relates to a marine propulsion system for a marine vessel, comprising an engine, a propeller unit comprising one or more propellers, a transmission arranged between the engine and the propeller unit, a hydraulic clutch arrangement. The clutch arrangement controls a power transfer between the engine and the propeller unit. The clutch arrangement comprises a clutch plate and a clutch piston. The clutch piston is actuated by a first hydraulic area and/or a second hydraulic area. The first hydraulic area is pressurized by an electrically controlled proportional pressure valve and the second hydraulic area is pressurized by an electrically controlled on/off valve. The control unit is operatively connected with the electrically controlled proportional pressure valve and the electrically controlled on/off valve, and is configured to control the electrically controlled proportional pressure valve and the electrically controlled on/off valve.

Abstract: A propulsion control arrangement operable to control a speed and possible direction of a marine vessel. A marine propulsion control system controlling a carried by a hull of a marine vessel, wherein the marine propulsion control system is adapted to receive an input command from the propulsion control arrangement.

Abstract: A marine propulsion system for a marine vessel has a drive unit comprising an upper part and a lower part, the upper part being pivotable in relation to the marine vessel and the lower part is rotatably connected with the upper part, the lower part comprises one or more propellers. An input unit receives an activation message indicative of an operation mode for the drive unit. A control unit is connected with the drive unit and the input unit. The control unit controls the drive unit on basis of the activation message received from the input unit.

Abstract: A marine propulsion control system for a marine vessel has a drive unit to be connected with the marine vessel. The drive unit comprises an upper part pivotably connected with the marine vessel and a lower part having propellers. The lower part is rotatable in relation to the upper part. An input unit obtains an activation message indicative of an operation mode for the drive unit. A control unit is configured to control the drive unit on basis of the activation message obtained from an input unit. The control unit controls the drive unit within different predetermined operation modes, wherein one of the predetermined operation modes is a swim mode in which the control unit rotates the lower part of the drive unit so that the one or more propellers is/are facing forward in a position of minimum 90 degrees compared to a rearward facing position of the one or more propellers. The control unit ensures no thrust force and/or rotation of the one or more propellers in the swim mode.

Abstract: A marine navigation system for a marine vessel includes a positioning unit configured to detect a position of the marine vessel, a nautical chart database, a display being configured to present a view of a nautical chart information and a position of the marine vessel on the nautical chart, and a short range distance sensor module arranged on the marine vessel. The short range distance sensor module provides scanned data of a surrounding environment of the marine vessel. A control unit is operatively connected with the short range distance sensor module, the positioning unit, the nautical chart database and the display. The control unit processes the scanned data to provide a scanned view of the surrounding environment. The control unit is configured to present an augmented view of the nautical chart and scanned data on the display, and to indicate portions of the scanned data which does not match the nautical chart information in the augmented view.

Abstract: A method for determining information indicative of a position of a translational movement sensor on a marine vessel is provided. The marine vessel extends in a longitudinal direction along a marine vessel longitudinal axis, the longitudinal direction preferably corresponds to an intended direction of travel of the marine vessel. The marine vessel extends in a vertical direction along a marine vessel vertical axis and in a transversal direction along a marine vessel transversal axis. The transversal axis is perpendicular to each one of the longitudinal axis and the vertical axis.

Abstract: A transom bracket for supporting a marine drive unit on a hull of a marine vessel extends in a plane spanned by a first axis and by a second axis, where a third axis is normal to the plane. The transom bracket includes one or more apertures facing transversal to the plane, the one or more apertures being arranged to route media past the plane to and from the marine drive unit, via a routing area in the plane, where the routing area extends over a routing area distance measured along the first axis.

Abstract: A transom bracket for mounting a marine drive unit to the hull of a marine vessel is provided The transom bracket extends in a plane spanned by a first axis and by a second axis, where a third axis is normal to the plane, and where a center line of the transom bracket extends in the plane and parallel to the first axis. The transom bracket includes at least one drive unit support for holding the drive unit in position. The transom bracket includes a first water conduit and a second water conduit integrated in the transom bracket, where the first water conduit and the second water conduit extend from respective upper apertures formed in an upper part of the bracket to respective lower apertures formed in a lower part of the bracket, where the lower apertures are separated from each other by the center line.

Abstract: A marine protection circuit includes a first terminal connectable to a ground connection of a marine vessel or a waterborne object and a second terminal connectable to a ground connection of an on-shore power supply. The marine protection circuit is configured to engage when a voltage across the first and the second terminals is above a threshold value. The marine protection circuit is configured to present low resistance between the first and the second terminals when engaged. The marine protection is configured to present high resistance between the first and the second terminals when unengaged.

Abstract: A marine propeller combination for a marine propulsion unit includes a first propeller and a second propeller arranged to rotate simultaneously in opposite directions about a common rotational axis. The marine propeller combination is configured such that the first and second propellers are angularly positioned such that during one revolution one of the blades of the first propeller is aligned with a drive leg of the marine propulsion unit when a blade gap of the second propeller is aligned with the drive leg, or one of the blades of the first propeller is aligned with the drive leg when one of the blades of the second propeller is aligned with the drive leg. The disclosure further relates to a marine vessel and to a method of operating a marine propeller combination.

Abstract: A propulsion system for a marine vessel is presented. The propulsion system comprising a propulsion unit that is rotatably attached to the marine vessel about an axis, a rotary drive arranged to rotate the propulsion unit about the axis by applying a torque about the axis, and a slip clutch assembly operationally arranged between the propulsion unit and the rotary drive to allow a rotational motion between the propulsion unit and the rotary drive about the axis in case the propulsion unit impacts an obstacle.

Abstract: A propulsion system for a marine vessel includes a transom bracket configured to be connected to a transom of the marine vessel, a drive unit being rotatably connected with the transom bracket so as to be pivotable by a tilt arrangement from a lowered position into a raised position, or vice versa, about a pivot joint, and a trim arrangement being arranged between the transom bracket and the drive unit to adjust a trim angle of the drive unit when in the lowered position. A trim arrangement lock is arranged to be connected with the trim arrangement for a range of trim angles of the drive unit in the lowered position so as to prevent pivoting of the drive unit by the tilt arrangement inside the range of trim angles, and the trim arrangement lock is configured to be disconnected from the trim arrangement outside the range of trim angles so as to allow pivoting of the drive unit by the tilt arrangement.

Abstract: A propulsion system for a marine vessel includes a transom bracket being configured to be connected with a transom of the marine vessel, and a drive unit. The drive unit is rotatably connected with the transom bracket via a first pivot joint, wherein a harness is guided from the transom bracket via the first pivot joint to the drive unit.

Abstract: A propulsion system for a marine vessel includes a drive unit, a transom bracket for attaching the drive unit to the marine vessel, a linear actuator for moving the drive unit. The linear actuator includes a drive end that is connected to the drive unit and a transom end. The propulsion system further includes a movable attachment for movably connecting the transom end of the linear actuator to the transom bracket.

Abstract: A propulsion system for a marine vessel includes a drive unit, a transom bracket for attaching the drive unit to a transom of the marine vessel, and an actuator for moving the drive unit. The transom bracket comprises a wall structure that is arranged to shield the actuator from the water.

Abstract: A propulsion system for a marine vessel includes a drive unit and a transom bracket for movably attaching the drive unit to the marine vessel such that the drive unit may be moved between a lower position and a higher position. The drive unit is adapted to be connected to the swim platform such that at least a portion of the swim platform is manoeuvrable by the drive unit being moved between its lower and higher positions.

Abstract: A propulsion system for a marine vessel includes a transom bracket being configured to be connected with a transom of the marine vessel, a drive unit being rotatably connected with the transom bracket so as to be pivotable from a lowered position into a raised position, or vice versa, and a trim arrangement being arranged between the transom bracket and the drive unit to adjust a trim angle of the drive unit when in the lowered position, wherein a support face is arranged on the transom of the marine vessel or at the transom bracket, and the drive unit comprises a support member arranged opposite the support face in the lowered position whereby the support face is configured to support the support member.