Other

Daimler Chrysler Ag

J&uuml;rgen Schenk

Peter Hohner

Hartung Wilstermann

Gerhard Hettich

Monika Knabe

J&uuml;rgen Voigt

Jorg Kirchner

A method for determining the air/fuel ratio in an internal combustion engine combustion chamber having at least two ignition plugs spaced apart from one another. Ion-current measurement is carried out during successive operating cycles, wherein a first ignition plug is operated as an ion-current sensor and does not release ignition energy. The time of arrival at the first ignition plug of a flame front formed at the ignition point of a second ignition plug, is detected. The detected time of arrival of the flame front, the ignition point and the ignition-plug spacing are used to determine the speed of the flame and, from this, the air/fuel ratio is determined as a function of the speed and/or load of the internal combustion engine.

Method for determining the air/fuel ratio in an internal combustion engine combustion chamber

A refrigerating circuit having a condenser and an evaporator, wherein shaped bodies (,) of a drying agent are arranged within a component (,), which carries liquid refrigerant of the circuit, and are so adapted to the internal geometric shape of the respective component as to filter residual moisture from throughflowing refrigerant.

Refrigeration circuit and apparatus

The present invention relates to a method for determining the running smoothness of an Otto spark ignition engine by measuring the ionic current (I) in at least one combustion chamber of the Otto spark ignition engine. Once the spark plug has fired, a measuring voltage is applied to the spark plug, inducing the ionic current (I). Following each ionic current measurement, initially an active, average ionic-current value (I,) is defined, and a running-smoothness value (L) is subsequently determined from a reference value and the ionic-current average value (I,).

Method for determining the running smoothness of an otto spark ignition engine

An internal combustion engine with electronic components controlled from a central unit, where electrical leads as conductive connection for power transmission and data transmission between the electronic components of the internal combustion engine are avoided completely wherever possible. The electronic components to be controlled from a central unit are arranged, together with the central unit, on the engine in a space that is fully enclosed by a metal housing part, power is supplied to at least some of the electronic components by high frequency electromagnetic waves generated and radiated without cables by a high frequency source arranged in the space enclosed by the metal housing part and the components to be supplied with power by the radiated electromagnetic waves from the high frequency source each have at least one receiving device for receiving the electromagnetic waves.

Growing community of inventors

Albershausen, Germany

Jürgen Schenk

Growing community of inventors

Albershausen, Germany

J&uuml;rgen Schenk

Jürgen Schenk