Robert Boschgmbh

Eric Plantier

Bernd Osswald

Reinhard Dittmann

Peter Weber

Joerg Sigrist

Erwin Franieck

Philip De Haan

Erich Jahrstofer

Jens Gringer

Celso Eduardo Fávero

Danilo Silva

The invention proposes an electric pump () for delivering a fluid. The electric pump () has a first pump component () with a first interface () and has a second pump component (). The first pump component () and the second pump component () are in contact with one another at the first interface (). Here, the first interface () has an incline () with respect to a plane running perpendicular to a longitudinal axis () of the electric pump ().

Geometry for the compensation of axial gaps arising in electric pumps

Known pumping devices have a connection lid, a connection cap slipped over the connection lid, a hollow chamber formed between the connection lid and the connection cap, and electrical connections that extend through the connection cap into the hollow chamber. It is disadvantageous that when fuels containing water are being pumped, such as ethanol, corrosion can occur at the electrical connections and at the uninsulated cable segments that are exposed to fuel near the electrical connections, for instance at the electrical coils or flexible cables of the carbon brushes, and in the final analysis this leads to an interruption in the electrical contact and thus to failure of the pumping device. In the electrical device of the invention, corrosion of the electrical connections and of the electrical components adjoining them upstream and downstream is avoided entirely or at least greatly diminished. According to the invention, the electrical connections are each provided in separate chambers of the hollow chamber.

Electrical device and plug for an electrical device

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Vaihingenenz, Germany

Eric Plantier