Aviation fuel lead scavenging additive
US8016897B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 4, 2008 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Jul 8, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/2641
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aviation 100LL fuel additive formulation for lead scavenging which mitigates the detrimental effects of lead, cleans up the combustion chamber and also allows shipping and distribution by common carrier, such as UPS or FedEx. A fuel additive composition is described for aviation 100 octane Low Lead fuel, containing: (1) glycol ether 10 to 90% by volume; (2) tricresyl phosphate 5 to 10% by volume; and, (3) Polyetheramine 15 to 30% by volume. The described composition has a flash point above 141 degrees F. to enable safe shipping by common carrier. The described composition also contains polyetheramine to create a mixture which is shown to be effective in preventing plug fouling by lead and be effective in reducing combustion chamber deposits, thus providing a smooth running engine during ground operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.