Whole-vehicle-based method for evaluating extreme pressure and antiwear properties of grease
US11921090B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Apr 17, 2020 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Jan 1, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0058
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A whole-vehicle-based method for evaluating extreme pressure and antiwear properties of grease includes injecting the grease onto a key bearing pin and causing the engineering machine to operate without load is disclosed. The method includes causing the engineering machine to operate under a load of 10% to 150% rated load at least once, viewing and analyzing a wear condition of a surface of the bearing pin, and issuing a whole-vehicle-based evaluation report of extreme pressure and antiwear properties of grease. The engineering machine is caused to operate once under a load of 10% to 150% rated load for 0.5 min to 100 h.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.