公开(公告)号：US20180312223A1

公开(公告)日：2018-11-01

申请号：US15772269

申请日：2016-10-18

申请人： SKF Marine GmbH

发明人： Michael Zollenkopf ,  Frank Albrecht ,  Ulrich Albrecht ,  Kai Danneberg ,  Uwe Leitloff ,  Thomas Siebrecht ,  Holger Spardel

IPC分类号： B63B1/36 ,  B63H25/46 ,  B63B13/02

CPC分类号： B63B1/36 ,  B63B13/02 ,  B63H25/46 ,  B63H2025/465 ,  Y02T70/121

摘要： The invention relates to a cover device for at least sectional closing of an underwater opening in a hull of a watercraft, in particular an opening of a transverse channel of a thruster. According to the invention the cover device includes at least one variable-volume hollow chamber lip including at least one buoyancy body, and the at least one hollow chamber lip is shiftable into an expansion state or into a shrinkage state by supplying or removing a fluid, in particular air. As a result of the variable-volume or inflatable cover device a more reliable and simultaneously lower-maintenance operation of the cover device is given. In addition, the invention has a thruster, in particular a bow or stern-thruster, as subject matter.

公开(公告)号：US10220923B2

公开(公告)日：2019-03-05

申请号：US15519590

申请日：2015-10-22

申请人： SKF Marine GmbH

发明人： Kai Danneberg ,  Michael Zollenkopf ,  Frank Albrecht ,  Ulrich Albrecht ,  Uwe Leitloff ,  Thomas Siebrecht ,  Holger Spardel

IPC分类号： B63B39/06 ,  B63B43/04

摘要： A fin stabilizer for stabilizing watercraft includes a pivotable stabilizer fin and a receiving space for receiving the stabilizer fin. The stabilizer fin is shiftable from a retracted state in which the stabilizer fin is received in the receiving space to an extended state in which the stabilizer fin extends from the receiving space. Also at least one flexible cover element for at least partially covering an opening of the receiving space, through which opening the stabilizer fin enters and exits the receiving space during retracting and extending, respectively. The stabilizer fin does not contact the at least one cover element when shifting from the retracted state to the extended state.

公开(公告)号：US10988220B2

公开(公告)日：2021-04-27

申请号：US16605615

申请日：2018-04-27

申请人： SKF MARINE GMBH

发明人： Holger Spardel ,  Frank Albrecht ,  Ulrich Albrecht ,  Kai Danneberg ,  Uwe Leitloff

IPC分类号： B63H5/16

摘要： A cover device for at least partially closing an underwater opening in a hull of a watercraft includes a variable-volume hollow-chamber lip assembly including at least two hollow-chamber lips and one buoyancy body. The at least one hollow-chamber lip is volume-variable by supplying a fluid to or removing a fluid from an interior thereof, and the at least one hollow-chamber lip assembly is shiftable between an expanded state and a contracted state by supplying or removing the fluid.

公开(公告)号：US10421522B2

公开(公告)日：2019-09-24

申请号：US15772269

申请日：2016-10-18

申请人： SKF Marine GmbH

发明人： Michael Zollenkopf ,  Frank Albrecht ,  Ulrich Albrecht ,  Kai Danneberg ,  Uwe Leitloff ,  Thomas Siebrecht ,  Holger Spardel

IPC分类号： B63B1/36 ,  B63B13/02 ,  B63H25/46

摘要： The invention relates to a cover device for at least sectional closing of an underwater opening in a hull of a watercraft, in particular an opening of a transverse channel of a thruster. According to the invention the cover device includes at least one variable-volume hollow chamber lip including at least one buoyancy body, and the at least one hollow chamber lip is shiftable into an expansion state or into a shrinkage state by supplying or removing a fluid, in particular air. As a result of the variable-volume or inflatable cover device a more reliable and simultaneously lower-maintenance operation of the cover device is given. In addition, the invention has a thruster, in particular a bow or stern-thruster, as subject matter.