Propulsion system for a marine vessel

Abstract

A propulsion system for a marine vessel includes a transom bracket configured to be connected with a transom of the marine vessel, and a drive unit. The drive unit is arranged to be moved in relation to the transom bracket to move the drive unit in the water and out of the water. The drive unit is connected with the transom bracket via a connecting arm having a first pivot joint connected with the transom bracket and a second pivot joint connected with the drive unit. The drive unit is configured to be moved in the water and out of the water by the connecting arm pivots around the first pivot joint or the drive unit pivots around the second pivot joint or the connecting arm and the drive unit pivot around both pivot joints.

1 . A propulsion system for a marine vessel, comprising
 a transom bracket configured to be connected with a transom of the marine vessel, and   a drive unit,   the drive unit is arranged to be moved in relation to the transom bracket for moving the drive unit in the water and out of the water,   the drive unit is connected with the transom bracket via a connecting arm having a first pivot joint connected with the transom bracket and a second pivot joint connected with the drive unit,   wherein the drive unit is configured to be moved in the water and out of the water by the connecting arm pivots around the first pivot joint or the drive unit pivots around the second pivot joint or the connecting arm and the drive unit pivot around both pivot joints.   
     
     
         2 . The propulsion system of  claim 1 , wherein the drive unit is configured to be moved by the connecting arm is pivoted around the first pivot joint in a clockwise direction or an anticlockwise direction independently of any pivoting of the drive unit around the second pivot joint. 
     
     
         3 . The propulsion system of  claim 1 , wherein the drive unit is configured to be moved by the drive unit is pivoted around the second pivot joint in a clockwise direction or an anticlockwise direction independently of any pivoting of the connecting arm around the first pivot joint. 
     
     
         4 . The propulsion system of  claim 1 , wherein the drive unit is configured to be moved by the connecting arm is pivoted around the first pivot joint in a clockwise direction or an anticlockwise direction at the same time as the drive unit is pivoted around the second pivot joint in a clockwise direction or an anticlockwise direction. 
     
     
         5 . The propulsion system of  claim 1 , wherein a linear actuator is arranged between the transom bracket and the connecting arm, and/or between the connecting arm and the drive unit. 
     
     
         6 . The propulsion system of  claim 1 , wherein a plurality of linear actuators are arranged between the transom bracket and the connecting arm, and/or between the connecting arm and the drive unit. 
     
     
         7 . The propulsion system of  claim 1 , wherein the first pivot joint has a first axis and the second pivot joint has a second axis, and the first axis and the second axis is defining an arm axis extending along the connecting arm between the first axis and the second axis. 
     
     
         8 . The propulsion system of  claim 7 , wherein a first linear actuator is arranged between the transom bracket and the connecting arm, the first linear actuator having a first actuator extension extending between the transom bracket and the connecting arm, wherein the arm axis and the first actuator extension intersect independently of any movement of the drive unit. 
     
     
         9 . The propulsion system of  claim 7 , wherein a second linear actuator is arranged between the connecting arm and the drive unit, the second linear actuator having a second actuator extension extending between the connecting arm and the drive unit, wherein the arm axis and the second actuator extension never intersect independently of any movement of the drive unit. 
     
     
         10 . The propulsion system of  claim 6 , wherein a hydraulic system is arranged for powering the linear actuator(s). 
     
     
         11 . The propulsion system of  claim 5 , wherein the linear actuator(s) are configured to pivot the connecting arm around the first pivot joint and/or the drive unit around the second pivot joint. 
     
     
         12 . The propulsion system of  claim 1 , wherein the drive unit comprises an electric motor. 
     
     
         13 . The propulsion system of  claim 1 , further comprising a control unit being operatively connected with the drive unit, the first pivot joint, the second pivot joint, the linear actuator(s), the electric motor and/or the hydraulic system. 
     
     
         14 . The propulsion system of  claim 1 , wherein the first pivot joint is hollow and the second pivot joint is hollow enabling routing of rigging and/or wiring to and from the drive unit via the pivot joints. 
     
     
         15 . The propulsion system of  claim 5 , wherein the linear actuator has an actuator end, the actuator end being connected with the connecting arm. 
     
     
         16 . The propulsion system of  claim 5 , wherein the linear actuator is connected with the drive unit in a distance below the second pivot joint. 
     
     
         17 . The propulsion system of  claim 16 , wherein the linear actuator is connected with the drive unit via a drive pivot joint. 
     
     
         18 . The propulsion system of  claim 1 , wherein the drive unit comprises one or more propellers, the one or more propellers comprises an angle of thrust. 
     
     
         19 . The propulsion system of  claim 1 , wherein the drive unit is configured to be trimmed and/or titled around the first pivot joint and/or the second pivot joint. 
     
     
         20 . A marine vessel comprising a transom and a propulsion system of  claim 1 .