Method for determining the composition of a fuel blend
US7774124B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2008 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Feb 4, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for determining the composition of a fuel blend from a first and at least a second fuel to operate an internal combustion engine with at least one combustion chamber, wherein fuel blends of different composition combust at different optimal ignition angles ZWmax with an optimal degree of efficiency ηmax. Provision is thereby made for the ignition angle ZW of the internal combustion engine to be altered, for the degree of efficiency η of the internal combustion engine or a parameter, which is a function of it, to be determined as a function of the ignition angle ZW and for the composition of the fuel blend to be determined from the change in the degree of efficiency Δη or the parameter, which is a function of it, when the ignition angle ZW is altered and/or from the ignition angle ZW as a function of the degree of efficiency η or the parameter, which is a function of the degree of efficiency η. The method makes it possible to determine the fuel mixing ratio in the fuel tank of internal combustion engines, which can be operated with different fuels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.