Abstract: A hybrid marine drive unit mounted to a transom. The drive unit includes a drive housing mounted on the transom, a propelling unit rotatable about a vertical axis and mounted to a lower surface of the drive housing, and a transmission with at least a vertical drive shaft located in the drive housing and extending into the propelling unit. The vertical drive shaft is arranged transmit drive torque from at least one of multiple sources of drive torque. The vertical drive shaft is operably connected to a first source of drive torque arranged within the drive housing, and the vertical drive shaft is operably connected to a horizontal output shaft extending into the drive housing through the transom. The horizontal output shaft is connectable to a second source of drive torque.

Abstract: A hybrid marine drive unit mounted to a transom. The drive unit includes a drive housing rigidly mounted on the transom, a propelling unit rotatable about a vertical axis and mounted to a lower surface of the drive housing, and a transmission with at least a vertical drive shaft located in the drive housing and extending into the propelling unit, which vertical drive shaft is arranged transmit drive torque from at least one of multiple sources of drive torque. The vertical drive shaft is operably connected to at least one first source of drive torque arranged within the drive housing, and the vertical drive shaft is operably connected to a horizontal output shaft extending into the drive housing through the transom.

Abstract: A drive arrangement for a marine vessel. The drive arrangement includes an upper drive part configured to be mounted onto an outside of a transom of the marine vessel. A lower drive part is connected to the upper drive part to be fixed in a vertical direction in relation to the upper drive part. The lower drive part has a hydrodynamic configuration and is provided with at least one propeller. A transmission system is arranged to transfer a drive torque to the propeller from a drive source system connected to the transmission system. An outer surface of the upper drive part substantially is made up of a plurality of surface sections connected by one or more edges. Each of said surface sections has a shape corresponding to a so-called ruled surface that can be generated by the motion of a straight line.

Abstract: An exhaust gas after-treatment device in a driveline application, which device comprising a casing having an upper surface, a lower surface and side surfaces connecting the upper and lower surfaces to form an enclosed volume. The casing is provided with an exhaust inlet opening and an exhaust outlet opening wherein exhaust gas is supplied to and discharged from the casing through the upper surface. At least one of the exhaust inlet and outlet openings is operatively connected to its corresponding inlet or outlet pipe by a pipe connector having a first opening facing the casing and a second opening facing away from the casing. The at least one pipe connector is arranged to be rotatable about the central axis of its associated inlet or outlet opening in the casing into a predetermined angular position relative to the opening in the casing.

Abstract: A method for performing a sideway displacement of a marine vessel. The marine vessel includes a first and a second propulsion unit, a first and a second rudder respectively associated with the first and the second propulsion units, and a bow thruster. The first and the second propulsion units, the first and the second rudders and the bow thruster are operable via a single driver interface. The method includes the steps of; via the single driver interface operate the first and the second propulsion units and the bow thruster so as to provide a total thrust and set the rudder angles of the first and the second rudders, to thereby steer the displacement of the marine vessel during the sideway displacement.

Abstract: The invention relates to a method to heat exhaust gases to a selected specific temperature by fuel injection control in an internal combustion engine (112), which engine comprises a control unit (115) registering the currently requested load and determining a required fuel amount in response to the requested load.

Abstract: The invention relates to a platform arrangement (110) mounted to a stern portion of a marine vessel (100). The platform arrangement comprises at least one first platform section (111) with a first transverse pivot joint (113) mounted adjacent a transom (105); at least one propulsion unit (101) mounted to a lower surface of the first platform section (111), wherein the at least one propulsion unit (101) and its first platform section (111) are tiltable between a drive position and an upwards tilted position. A second platform section (112) is located in front of the at least one first platform section (111), which second platform section (112) has a second transverse pivot joint (114) mounted adjoining the first transverse pivot joint (113) of a corresponding first platform section (111). The first and second platform sections (112) are foldable relative to each other about their respective first and second pivot joints (113; 114). The invention further relates to a vessel comprising the platform arrangement.

Abstract: A portable unit is arranged to measure a value for polarized potential in a corrosion protection system comprising a protected structure, an anode and a reference electrode, which portable unit is connectable to the protected structure and to the reference electrode. The portable unit is arranged toperform voltage measurements to detect and monitor an instant-off sequence, wherein the corrosion protection system is turned off for a predetermined time period during normal operation. If an instant-off sequence is detected, then a voltage measurement is performed to measure a voltage signal representing a direct current potential curve for the corrosion protection system during the instant-off sequence. A step response detected in the voltage signal during an initial IR drop and a subsequent voltage decay are analysed. An initial value for the voltage signal at the time of the step response is determined and displayed as a value for polarized potential.

Abstract: An unmanned aircraft system of an unmanned aircraft, a control system arranged on a marine vessel, as well as a method for controlling a navigation system of a marine vessel is described. This may enable improved operation of the marine vessel in docking situations at a mooring position.

Abstract: A method for controlling a hybrid electric driveline 2, comprising an internal combustion engine 3 and an electric machine 5 configured in parallel for driving a propulsion member 9, comprising the steps of: driving the driveline in generator mode, where the electric machine provides a charge current to a battery 11 and where the internal combustion engine provides positive driving torque to the propulsion member, and limiting the maximal available torque from the internal combustion engine to a predetermined torque limitation value depending on the rotational speed of the internal combustion engine.

Abstract: The invention relates to mixer device (52) for mixing and an additive to the exhaust gas flow from a combustion engine. The mixer device has an additive injection means (1) and a conduit (2) with an inlet opening and an outlet opening. The conduit (2) has a widened portion (5) between the inlet opening and the outlet opening. The additive injection means (1) is located in the widened portion (5) for injecting the additive into the widened portion. The widened portion (5) at the location of the additive injection means (1) defines an injection width (W) being the distance from the additive injection means (1) to the opposite part (6) of the conduit (2). The injection width (W) is larger than the maximum width (W1) of the conduit (2) adjacent the inlet opening. According to the invention, the cross sectional area of the conduit (2) at the location of the additive injection means (1) is smaller than 1.2 times the cross sectional area of the conduit (2) adjacent the inlet opening.

Abstract: The embodiments herein relate to amounting arrangement (100) for a propulsion unit. The mounting arrangement (100) comprises an attachment arrangement (133) adapted to attach said mounting arrangement (100) to a marine vessel. The mounting arrangement (100) comprises a propulsion unit carrying arrangement (110) adapted to be rigidly connectable to said propulsion unit. The propulsion unit carrying arrangement (110) is pivotably mounted to said attachment arrangement (133). The embodiments further relate to a marine propulsion system (200) comprising a propulsion unit (210) and the mounting arrangement (100). The propulsion unit (210) is rigidly connected to the propulsion unit carrying arrangement (100). An output shaft of the propulsion unit (210) is drivingly connectable to a shaft of a propeller drive (220). The marine propulsion system is pivotably mountable to a marine vessel.

Abstract: The invention relates to an outer drive protection arrangement attachable to a marine vessel (100; 200; 300; 400; 500; 600) while not immersed in water. The arrangement comprises a rim portion (110; 210; 310; 410; 510; 610; 810; 910) arranged in contact with at least a transom surface (101; 201; 301; 401; 501; 601; 801; 901) and surrounding at least one outer drive (103; 203; 303; 403; 503; 603; 803; 903); and a protective cover (111; 211; 311; 411; 511; 611; 811; 911) attached to the rim portion and enclosing a volume encompassing the at least one outer drive, in order to provide a protective gaseous environment inside the cover; wherein the environment contained within the cover is circulated and maintained at a predetermined atmospheric condition by means of a source of conditioned gas.

Abstract: The invention provides a method for operating a marine vessel (1) comprising a plurality of propulsion units (106, 107, 108, 206, 207, 208), each being arranged to deliver thrust to water in which the vessel (1) is floating, the thrust delivery levels of the propulsion units (106, 7, 108, 206, 207, 208) being individually controllable, the method comprising controlling (S2) a first (106, 207) of the propulsion units so as to deliver a thrust in a direction (T106, T207) which has a component in a first direction (F) of the vessel, simultaneously controlling (S2) a second (107, 208) of the propulsion units so as to deliver less thrust than the first propulsion unit (106, 207), and subsequently increasing (S4) the thrust delivered by the 10 second propulsion unit (107, 208) in a direction (T107, T208) which has a component in the first direction (F), the method further comprising simultaneously with increasing the thrust delivered by the second propulsion unit (107, 208) decreasing (S5) the thrust delivered by t

Abstract: Mixer box for mixing, vaporization and decomposition of a liquid additive to the exhaust gas flow from a combustion engine, comprising a gas inlet (108), a gas outlet (109) and internal duct means establishing a gas flow path (A-H, a-h) from the gas inlet (108) to the gas outlet (109). The duct means includes a first duct portion (107) having an outer wall (171) and an inner wall (161), which is surrounded by the outer wall (171), such that the gas flow path through said first duct portion (107) is established inbetween. The first duct portion (107) is provided with at least two partitions (121-124) extending between the outer wall (171) and the inner wall (161), which separate the first duct portion (107) into at least two duct sections (101a, 101b, 102a, 102b) of which at least one is an upstream duct section (101a, 101b) and at least one is a downstream duct section (102a, 102b).

Abstract: The present disclosure generally relates to a joystick device (100) operable to provide speed, direction and steering commands for controlling a marine vessel (300), the joystick device (100) comprising a movable steering lever (102) extending on an axis (V) and adapted to be tilted from a neutral position in at least four directions including a forward, a rearward, a leftward, and a rightward direction, wherein—an active length of the movable steering lever (102) is adjustable between a first (L1) and a second (L2) lever length,—the first lever length (L1) is shorter than the second lever length (L2),—a first mode for operating the marine vessel (300) is associated with the first lever length (L1), and—a second mode for operating the marine vessel (300) is associated with the second lever length (L2), the second mode being different from the first mode for operating the marine vessel (300).

Abstract: The invention provides a method for using a system for detecting a position of a second device (452) in relation to a first device (451), —the system comprising an array (461) of fields, fixed to the first device (451), the fields consisting of a plurality of first fields (4611) presenting a first physical characteristic (S), and a plurality of second fields (4612) presenting a second physical characteristic (N), which is different from the first physical characteristic (S), the first and second fields (4611, 4612) being arranged in an alternating manner along the array (461) of fields, —the system further comprising a first sensor (4521) and a second sensor (4622), fixed to the second device (452), wherein the first and second sensors (4521, 4622) are arranged to move along the array (461) of fields when the second device (452) moves in relation to the first device (451), —the first and second sensors (4521, 4622) being adapted to detect the first physical characteristic (S) or the second physical characteri

Abstract: The present disclosure generally relates to a joystick device (100) operable to provide speed, direction and steering commands for controlling a marine vessel (300). The present disclosure also relates to a marine propulsion control system controlling a set of propulsion units (308, 310, 312 and 314) carried by a hull of a marine vessel (300), wherein the marine propulsion control system is adapted to receive an input command from such a joystick device (100).

Abstract: The invention relates to mixer device (52) for mixing and an additive to the exhaust gas flow from a combustion engine. The mixer device has an additive injection means (1) and a conduit (2) with an inlet opening and an outlet opening. The conduit (2) has a widened portion (5) between the inlet opening and the outlet opening. The additive injection means (1) is located in the widened portion (5) for injecting the additive into the widened portion. The widened portion (5) at the location of the additive injection means (1) defines an injection width (W) being the distance from the additive injection means (1) to the opposite part (6) of the conduit (2). The injection width (W) is larger than the maximum width (W1) of the conduit (2) adjacent the inlet opening. According to the invention, the cross sectional area of the conduit (2) at the location of the additive injection means (1) is smaller than 1.2 times the cross sectional area of the conduit (2) adjacent the inlet opening.

Abstract: A calibration method for at least one propulsion unit of a marine vessel, the at least one propulsion unit being arranged to provide a propulsive force to the vessel, the at least one propulsion unit being adjustable so as to change a respective steering angle of the at least one propulsion unit in relation to a hull of the vessel.