Fuel additives and formulations for improving performance of gasoline direct injection engines
US12104133B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2021 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Dec 22, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2270/023
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Fuel additive compositions having at least one acylated detergent, at least one Mannich detergent, and at least one polyether and/or polyetheramine. The acylated detergent may be the reaction product of a hydrocarbyl-substituted acylating agent and a nitrogen containing compound having at least one amino group, that may optionally be quaternizable, and at least one oxygen or nitrogen atom capable of reacting with the hydrocarbyl-substituted acylating agent. The compositions are useful for reducing the formation of carbonaceous deposits and/or cleaning carbonaceous deposits in an engine, such as a gasoline direct injection engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.