Marine propeller

Abstract

Marine propeller for a propulsion system of a ship, which propeller comprises a plurality of detachable blades, and which propeller is configured to be fixed to a propeller shaft of a propulsion system of a ship, wherein the detachable blades forming the propeller are configured to be fixed to the end surface of the propeller shaft or of a flange formed at the end of the propeller shaft. The invention also relates to a marine propulsion system and to a ship utilizing this kind of marine propeller.

1 . A marine propeller for a propulsion system of a ship, which propeller comprises a plurality of detachable blades, and which propeller is configured to be fixed to a propeller shaft of a propulsion system of a ship, wherein the detachable blades forming the propeller are configured to be fixed to an end surface of the propeller shaft or of a flange formed at the end of the propeller shaft. 
     
     
         2 . The marine propeller of  claim 1 , wherein the propeller comprises a cap connected to the detachable blades of the propeller. 
     
     
         3 . The marine propeller of  claim 1 , wherein the number of detachable blades is three or more. 
     
     
         4 . The marine propeller of  claim 1 , wherein the detachable blades are fixed to the propeller shaft with a fixing system comprising bolts. 
     
     
         5 . A marine propulsion system for providing propulsion for a ship, which propulsion system comprises at least one engine or motor, a propeller, and a propeller shaft for conveying rotational power from the at least one engine to the propeller, wherein the propeller is a marine propeller according to  claim 1 . 
     
     
         6 . The marine propulsion system of  claim 5 , wherein the system comprises a rope guard. 
     
     
         7 . A ship comprising a marine ship propeller according to  claim 1 . 
     
     
         8 . A ship comprising a marine propulsion system of  claim 5 . 
     
     
         9 . The marine propeller of  claim 4 , wherein the fixing system additionally comprises studs.