Sealing device for rotating shafts, in particular steven pipe seal for ships

摘要

Sealing device for rotating shafts, in particular steven pipe seal for screws shafts of ships, on the one hand, on a liquid external medium, on the other hand, on a liquid lubricant for the lubrication of a shaft bearing and in the case of the sealing rings, such as lip seals, in each case between the ring parts are clamped and between the sealing rings and annular chambers are formed for the lubricant as well as in front of a shaft bearing for strength sealing ring a lubricating oil space is arranged, with which a bushing of the rotating shaft, characterized in that pressure fluctuations which occur in the lubricating oil space (7) by means of axial vibrations of the shaft (1) via an annular piston surface (6) of the bushing (3) by means of a sensor (21) for detecting the pressure changes as - value to a comparator element (12) is fed, which a control element (14), such as a pressure valve, is acted upon, in order to control the level of a ring tube to carry out the left-hand side of the inflatable body (19), wherein the inflatable body (19) on the lubricating oil space (7) and the volume of the lubricating oil space (7) with a phase shift of approximately 180 degrees to the recorded pressure pulse, in order to a minimum pressure fluctuation in the..