Compostions for control of induction system deposits
US5551957A · kind A · utility
22Cited by
81References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1994 |
| Grant date | Sep 3, 1996 |
| Priority date | — |
| Expiry date | Dec 27, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B1/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The combination of a fuel-soluble succinimide detergent/dispersant, a fuel-soluble liquid carrier or induction aid therefor, and a fuel-soluble cyclopentadienyl manganese tricarbonyl compound can sharply reduce the formation or accumulation of engine deposits such as intake valve deposits in internal combustion engines. In fact, such compositions can function synergistically whereby the effectiveness of a highly effective succinimide-based deposit control additive can be improved by the addition thereto of the manganese compound, the latter not known to be a substance that reduces deposits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.