Device for measuring frictional force and film thickness of lubricating oil film in different surface velocity directions
US11768149B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2021 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Mar 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device measures a frictional force and a film thickness of a lubricating oil film in different surface velocity directions. The device includes an experiment bench. A translation stage is mounted to the experiment bench, and is linearly movable. A main shaft system is mounted to the experiment bench. A glass disc is mounted to the main shaft system and is rotatable. An arcuate guide rail is disposed on the translation stage. A rotary base is mounted to the arcuate guide rail and is movable along the arcuate guide rail. A loading system is mounted to the rotary base. A steel ball of the loading system and the glass disc are movable relative to each other. A rotary bearing in the rotary base is configured to convert a frictional force generated from the relative movement to a pressure allowed to be collected by a pressure sensor on the rotary base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.