Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The invention relates to a connection (7) of a fuel supply device in a motor vehicle, which is characterized in that a corrugated hose (5) is held in a peripheral groove (10) of a connection piece (8) by means of a glue (12) and in that the groove (10) protrudes from an undulation of the corrugated hose (5). The corrugated hose (5) can thus be connected to the connection piece (8) with very little effort. The connection (7) is also inexpensive to produce.

Abstract: 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.

Abstract: 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.

Abstract: A connection for a feed line at a feed pump pumping fuel out of a fuel tank, includes a nonreturn valve disposed in a horizontal portion of a connection stub. The connection stub is held on the feed pump by a latching device. The connection permits a particularly compact configuration of the feed pump.

Abstract: Connectors for fuel pumps in motor vehicles have fuel flowing around them. Apart from the connections for the electrical supply lines, such connectors make contact with further electrical components. Corrosive components in fuels attack the connecting points of the connector to the electrical components, so that this can lead to failure of the fuel pump. The new connector is intended to have connecting points which are no longer attacked by the fuel. By extrusion coating parts of the connector with plastic, the connecting points are effectively protected against attack by fuel. Recesses in the plastic extrusion coating allow fuel to still flow around parts of the connector for cooling, while the regions of the connector which are at risk are separated from the fuel.