Siemens Aktiengesellschaft

Continental Automotive Gmbh

Vitesco Technologies Gmbh

Ralf Muehlhausen

Gabriel Simara Lima

Marc Völker

Thomas Schmidt

Dirk Becker

Wolfgang Warnke

Frank-William Ries

Otto Korst

Rolf Reinhardt

A method is provided for producing a plug, having a plastic injection-molded encapsulation, for a fuel pump which arranged in a fuel tank of a motor vehicle. The plug has cables, stranded wires and a ground contact each protruding out of the encapsulation and each connected to encapsulated components. The plug elements and coils are inserted into a base plate. One core of a cable is soldered, welded or crimped to flat plug elements. The coils and stranded wires are each soldered, welded or crimped to a flat plug element. The base plate is inserted into a cavity of an injection mold, such that the cables and the stranded wires protrude out of the cavity through first passage openings and second passage openings, respectively, and cores are arranged in continuous openings of identical cross section in the wall of the injection mold. The cavity is then filled with a plastic.

Method for producing a plug

A fuel delivery pump for delivering fuel, having an electric motor and having a pump impeller that is driven by means of the electric motor, wherein the pump impeller is connected by means of a shaft to a rotor of the electric motor such that a rotational movement of the rotor is transmitted via the shaft to the pump impeller, wherein the shaft is mounted by means of an axial bearing in an axial direction and/or by means of a radial bearing in a radial direction relative to a pump stage in which the pump impeller is arranged, wherein an electrical insulation element is arranged between the axial bearing and the pump stage, and/or an electrical insulation element is arranged between the radial bearing and the pump stage.

Fuel pump having electrically insulated bearings

A device for connecting an electric motor intended for use in a fuel tank, in particular of a motor vehicle, with connection contacts carbon brushes sliding over an armature of a rotor, and electrical leads arranged between the connection contacts and the carbon brushes. The electrical leads have a sheath made of polytetrafluoroethylene.

Device for connecting an electric motor intended for use in a fuel tank, in particular of a motor vehicle

Disclosed is a G-rotor pump in which a lid and a bottom of a pump housing are made of plastic. A spacer that supports the bottom is produced as a single piece with the lid, whereby the G-rotor pump can be embodied in a particularly inexpensive manner.

G-rotor pump

In the case of a fuel pump, a plug for fixing electric contacts is manufactured from a material which is capable of swelling with fuel, and is inserted into a receptacle of a connecting piece by being fitted therein. Furthermore, the plug and the connecting piece have latching means for simplifying the pre-assembly. The connecting piece requires a particularly low number of components and can be manufactured cost-effectively.

Growing community of inventors

Rotenburg, Germany

Ralf Muehlhausen