Alkyl hydroxybutyrate cleaning composition and method of cleaning air intake valve deposits
US10934508B2 · kind B2 · utility
0Cited by
3References
18Claims
0Family size
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Key dates
| Filing date | Mar 10, 2017 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | May 4, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A cleaning composition is particularly suited for cleaning dirty intake valves. The cleaning composition includes a high solvency surfactant/solvent which has a Kb greater than 100 or polar Hansen solubility parameter greater than 6. The surfactant/solvent is combined with an organic carrier and a surfactant. A wetting agent may also be employed. The cleaning composition is added to the intake air as a mist as the engine is running.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.