Abstract: An arrangement for shaft sealing and to a method for monitoring the sealing of the shaft seal are provided. The arrangement includes a rotating slide ring and a stationary slide ring, with a sealing gap having a lubricating film therebetween. The arrangement includes at least one sound transducer for generating and/or receiving exciting sound waves in the form of Lamb Rayleigh waves in at least one slide ring. The signals of the sound transducer are evaluated by an evaluation unit to determine the condition of the lubricating film in the gap.
Type:
Grant
Filed:
December 19, 2016
Date of Patent:
April 27, 2021
Assignees:
KSB SE & Co. KGaA, Bestsens AG
Inventors:
Maximilian Hauske, Tina Weinberger, Christoph Brueckner, Jurij Root, Stefan Schneider, Imannuel Rossteutscher
Abstract: A bearing including a first and a second bearing element that are movable relative to one another, a lubricant arranged between the first and the second bearing element for reducing the friction between the first and the second bearing element, at least one transmitter for exciting acoustic waves in the first or the second bearing element, the transmitter being arranged on the first or the second bearing element; at least one receiver for receiving acoustic waves evoked by the transmitter, the receiver being arranged on the first or the second bearing element, wherein information related to properties of the lubricant can be determined using a signal generated by the receiver upon receipt of acoustic waves evoked by the transmitter. The invention is also related to a method for determining properties of a lubricant in a bearing.
Type:
Grant
Filed:
December 22, 2010
Date of Patent:
April 15, 2014
Assignee:
Bestsens AG
Inventors:
Gerhard Lindner, Martin Schmitt, Josefine Schlemmer, Sandro Krempel, Hendrik Faustmann, Christoph Brueckner