Ocean-going ship, an ocean-going vessel with a device for sealing propeller drive shafts, and a device for sealing propeller drive shafts in an ocean-going vessel

Abstract

In an ocean-going ship or vessel, a device is used to seal propeller drive shafts and has an inner bush that guides the drive shaft. The inner bush is for its part guided in an outer bush and has an inside diameter that is greater than an outside diameter of the drive shaft to be guided The inner bush has at least one oil or grease channel which is provided with at least one discharge opening in the vicinity of an inner side of the inner bush and can be connected to an oil or grease transport device.

What is claimed is:  
     
         1 . An ocean-going ship, said ocean-going ship comprising a device to seal propeller drive shafts which has an inner bush that guides the drive shaft, which inner bush is guided in an outer bush and has an inside diameter that is larger than an outside diameter of the drive shaft to be guided, characterized by the fact that the inner bush ( 7 ) has at least one oil or grease channel ( 17 ) which is provided with at least one discharge opening ( 18 ) in the vicinity of an inner side ( 12 ) of the inner bush ( 7 ) and can be connected to the oil or grease transport device.  
     
     
         2 . The ship as claimed in  claim 1 , characterized by the fact that the discharge opening ( 19 ) of the oil or grease channel ( 17 ) is positioned in an area of the inner bush ( 7 ) that faces the ship's propeller ( 8 ).  
     
     
         3 . The ship as claimed in  claim 1 , characterized by the fact that the discharge opening ( 18 ) of the oil or grease channel ( 17 ) is positioned in an area of the inner bush ( 7 ) that faces away from the ship's propeller ( 8 ).  
     
     
         4 . The ship as claimed in  claim 1 , characterized by the fact that the discharge opening ( 19 ) of the oil or grease channel ( 17 ) is located in a middle area of the inner bush ( 7 ) in the direction of a longitudinal axis ( 14 ) of the shaft.  
     
     
         5 . The ship as claimed in  claim 1 , characterized by the fact that the inner bush, in the vicinity of its inner side ( 12 ) facing the drive shaft ( 1 ), is provided with a depression on the inside ( 13 ) that is bordered by radial webs ( 15 ,  16 ).  
     
     
         6 . The ship as claimed in  claim 5 , characterized by the fact that the depression on the inside ( 13 ) has a configuration that corresponds to the external surface of a cylinder.  
     
     
         7 . The ship as claimed in  claim 6 , characterized by the fact that at least one displacement element ( 19 ) is guided in the vicinity of the depression on the inside ( 13 ).  
     
     
         8 . The ship as claimed in  claim 7 , characterized by the fact that the displacement element ( 19 ) has a ring shape.  
     
     
         9 . The ship as claimed in  claim 8 , characterized by the fact that two displacement elements ( 19 ) are located in the vicinity of the depression on the inside ( 13 ).  
     
     
         10 . The ship as claimed in  claim 9 , characterized by the fact that at least one of the displacement elements ( 19 ) has a taper ( 24 ), the inclination of which relative to the longitudinal axis ( 14 ) of the shaft corresponds to the inclination of an inclined flank ( 25 ) of the depression on the inside ( 13 ).  
     
     
         11 . The ship as claimed in  claim 10 , characterized by the fact that a seal ( 21 ,  23 ) is located in the vicinity of at least one of the radial webs ( 15 ,  16 ).  
     
     
         12 . The ship as claimed in  claim 11 , characterized by the fact that the seal ( 21 ,  23 ) is realized in the form of an O-ring.  
     
     
         13 . The ship as claimed in  claim 11 , characterized by the fact that the seal ( 21 ,  23 ) is realized in the form of a guide band or driving band.  
     
     
         14 . The ship as claimed in  claim 12 , characterized by the fact that the displacement element ( 19 ) is provided with at least one seal ( 22 ).  
     
     
         15 . The ship as claimed in  claim 14 , characterized by the fact that the displacement element ( 19 ) has two seals on sides facing away from each other.  
     
     
         16 . The ship as claimed in  claim 15 , characterized by the fact that the,inner bush ( 7 ) is mounted on a ship's propeller ( 8 ).  
     
     
         17 . In an ocean-going vessel, a device to seal drive shafts which has an inner bush that guides the drive shaft, which inner bush is guided in an outer bush and has an inside diameter that is larger than an outside diameter of the drive shaft to be guided, characterized by the fact that the inner bush ( 7 ) has at least one oil or grease channel ( 17 ) which is provided with at least one discharge opening ( 18 ) in the vicinity of an inner side ( 12 ) of the inner bush ( 7 ) and can be connected to the oil or grease transport device.  
     
     
         18 . The device as claimed in  claim 17 , characterized by the fact that the discharge opening ( 19 ) of the oil or grease channel ( 17 ) is positioned in one of: an area of the inner bush ( 7 ) that faces the ship's propeller ( 8 ); an area of the inner bush ( 7 ) that faces away from the ship's propeller ( 8 ); a middle area of the inner bush ( 7 ) in the direction of a longitudinal axis ( 14 ) of the shaft.  
     
     
         19 . The device as claimed in  claim 18 , characterized by the fact that the inner bush, in the vicinity of its inner side ( 12 ) facing the drive shaft ( 1 ), is provided with a depression on the inside ( 13 ) that is bordered by radial webs ( 15 ,  16 ); the depression on the inside ( 13 ) has a configuration that corresponds to the external surface of a cylinder; at least one displacement element ( 19 ) is guided in the vicinity of the depression on the inside ( 13 ); and the displacement element ( 19 ) has a ring shape.  
     
     
         20 . The device as claimed in  claim 19 , characterized by the fact that two displacement elements ( 19 ) are located in the vicinity of the depression on the inside ( 13 ); at least one of the displacement elements ( 19 ) has a taper ( 24 ), the inclination of which relative to the longitudinal axis ( 14 ) of the shaft corresponds to the inclination of an inclined flank ( 25 ) of the depression on the inside ( 13 ); a seal ( 21 ,  23 ) is located in the vicinity of at least one of the radial webs ( 15 ,  16 ); and the seal ( 21 ,  23 ) is realized in the form of an O-ring or a guide band or driving band; the displacement element ( 19 ) is provided with at least one seal ( 22 ); the displacement element ( 19 ) has two seals on sides facing away from each other; and the inner bush ( 7 ) is mounted on a ship's propeller ( 8 ).