Method for cleaning internal parts of gasoline engines
US8926763B2 · kind B2 · utility
4Cited by
23References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2008 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Sep 28, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Interior parts of gasoline engines are readily cleaned by a method comprising the steps of connecting an a cleaning liquid supply pipe having a gas supply port thereon airtightly to a port of an intake pipe of the engine below a throttle valve-attached position of the engine; operating the engine to draw cleaning liquid in the form of liquid drop and simultaneously drawing continuously a gas having an oxygen concentration of less than 20 vol. % into the intake pipe; and exhausting the cleaning liquid having been brought into contact with the internal parts of the engine with an exhaust gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.