Monitoring slide ring seal
US10989307B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 19, 2016 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | May 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2696
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.