Method for diagnosing deterioration of lubricant, and system and method for monitoring lubricant of rotating machine
US11209357B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2018 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Aug 22, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for diagnosing the deterioration of a lubricant, and a system and method for monitoring a lubricant of a rotating machine are capable of diagnosing the deterioration of an additive to a lubricant. The concentration of the additive to the lubricant is obtained by using chromaticity data obtained on the basis of measurement data from an optical sensor, and, on the basis thereof, the deterioration of the lubricant is diagnosed. In addition, the system for monitoring the lubricant is provided with an optical sensor, an input device, a processing device, a storage device, and an output device. The storage device stores, in a time series, the concentration of the additive to the lubricant, which is obtained with the optical sensor, and the processing device estimates the time at which the concentration of the additive reaches a threshold value on the basis of concentration data of the additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.