Kloeckner-humboldt-deutz Ag

Fev Motorentechnik Gmbh & Co. Kb

Ulrich Hilger

Franz Pischinger

Gunter Schmitz

Ernst Scheid

A device for the determination of the alcohol content and/or the calorific value of fuels by measuring the characteristics of the fuel in a measurement cell in which a flow body that is at least partially wetted by the fuel is arranged. The accuracy and speed of this measurement is improved by providing a first electrode for the dielectric measurement of the fuel and a second electrode for the measurement of the conductivity of the fuel on the outside of the flow body. Preferably the first electrode for the measurement of the capacitance, its outer connection and the walls of the measurement cell form a mechanically rigid system. It can also be expedient to mount the measuring circuit for the measurement of at least the capacitance directly on the housing of the measurement cell.

Measuring cell for determinating the alcohol content and/or calorific

An ignition device (2) for an air-compressing internal combustion engine which is cooled only to a small extent by the fuel which impacts upon it. As shown in FIG. 3, a heat reservoir in the form of at least one incandescent helix (15, 16) is inserted between an incandescent rod (6) and a casing (10) which surrounds the helix and the rod.

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Aachen, Germany

Ulrich Hilger