Lubricant compositions for direct injection engine
US10800992B2 · kind B2 · utility
3Cited by
0References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2016 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Mar 22, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and a boron-containing ashless dispersant. The ashless dispersant may be selected from succinimide compounds prepared from aliphatic or aromatic amines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.