Abstract: The present invention concerns a grout injection device (10) and a method for injecting grout into a longitudinal hole, e.g. a borehole. The grout injection device (10) comprises a hose (11) having at least three separate lines (12,13,14) defined in the interior of said hose (11); a packer system (16) arranged at one end (15) of said hose (11), said packer system comprising a chamber (17), said chamber (17) being provided with an inlet opening (18) into which said at least three lines (12,13,24) of said hose (11) lead and one or more discharge openings (22,23,24) for releasing fluid from said chamber (17) into the surrounding of the packer system; and a pump system (30) arranged at the opposite end (28) of said hose (11), configured to inject fluids into said at least three lines (12,13,14) of said hose (11).

Abstract: A method for operating a ship propulsion system, in particular a sailing ship propulsion system, comprising an internal combustion engine (303), at least one shifting clutch (319), and a drive device (309) for transmitting drive power to at least one propeller (308). The direction of thrust of the propeller (308) is changed via the drive device (309) which is designed as a ship propulsion system which can be pivoted about a substantially vertical control axis (320) by pivoting a thrust unit (321) associated with the drive device (309). For this purpose, the pivotable thrust unit (321) is pivoted approximately 180° in the opposite direction to reverse the direction of thrust of the propeller (108).

Abstract: A method for operating a ship propulsion system, in particular a sailing ship propulsion system, comprising an internal combustion engine (303), at least one shifting clutch (319), and a drive device (309) for transmitting drive power to at least one propeller (308). The direction of thrust of the propeller (308) is changed via the drive device (309) which is designed as a ship propulsion system which can be pivoted about a substantially vertical control axis (320) by pivoting a thrust unit (321) associated with the drive device (309). For this purpose, the pivotable thrust unit (321) is pivoted approximately 180° in the opposite direction to reverse the direction of thrust of the propeller (108).