Method and device for detecting the quality of fuel for an internal combustion engine
US6817342B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2002 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Oct 23, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A wall film can form around a temperature sensor as a result of the temperature sensor being fitted in the intake port of the internal combustion engine, in such a manner that at least some of the fuel jet from the injection valve is sprayed onto it. The reduction in temperature that occurs as a result of the enthalpy of vaporization at the temperature sensor is measured and used as a criterion for determining the quality of the fuel supplied to the internal combustion engine. This information can be used to correct the change in injection time exclusively or in addition to adapting the starting quantity and/or using the lack-of-smoothness method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.