| 摘要 |
The invention exploits the fact that nowadays commercially available fuel grades have approximately the same molecular weights which, however, markedly differ from the molecular weights of methanol or ethanol. …<??>By complete vaporisation of a fuel sample volume by means of a device according to the invention, different volumes of the vaporised fuel sample are obtained depending on the content of admixed alcohols to the normal fuel or, if the volume is restricted, different pressures, it being necessary in each case to detect the sample temperature and for allow for its effect on the measured variable. …<??>From these values measured after the vaporisation of the fuel sample quantity (volume change and/or pressure change and/or temperature change), a correction signal, by means of which engine control variables can be changed, is formed in a comparison with reference values stored in a control instrument. …<??>Such methods and devices are used in internal combustion engines. …<IMAGE>… |
