公开(公告)号：US20190086383A1

公开(公告)日：2019-03-21

申请号：US16123089

申请日：2018-09-06

Applicant: ExxonMobil Research and Engineering Company

Inventor： Walter D. VANN ,  Kathleen K. COOPER ,  Spyridon KORRES ,  Samuel FLORES-TORRES ,  Bhaskar PRABHAKAR ,  Erik HERZ

IPC: G01N33/28 ,  G01N21/25 ,  G01N33/30 ,  G01N27/60

Abstract: Methods are provided for in-situ detection of varnish and/or deposit precursors in a lubricant in a lubricating environment. An electrostatic accumulator can be used within a lubricating environment to enhance accumulation of varnish and/or deposit precursors on portions of the electrostatic accumulator. The deposits accumulated on the electrostatic accumulator can then be characterized in-situ. The potential difference across portions of the electrostatic accumulator can cause an enhanced rate of deposit accumulation on the electrostatic accumulator, which can facilitate characterization of the tendency of a lubricant to accumulate deposits in the lubricating environment.