Marine engine lubrication
US8951944B2 · kind B2 · utility
0Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2013 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Feb 26, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/252
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricant additive comprising an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent dispersed in a diluent comprising 10 mass % or more of a basestock containing greater than or equal to 90% saturates and less than or equal to 0.03% sulphur is blended, in a minor amount, with an oil of lubricating viscosity, in a major amount, to give a trunk piston marine engine lubricating oil composition for a medium-speed four-stroke compression-ignited marine engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.