Abstract: Disclosed is a fuel conveying unit comprising an electric motor and a return ring (8) that is made of plastic-bonded ferrite as a single piece along with magnetic shells (10). The magnetic shells (10) induce a magnetic flux that is closed by the return ring (8). The electric motor requires a particularly low number of parts that are to be assembled and can be produced inexpensively.

Abstract: The invention relates to a connector (3) for connecting a flow pipe leading to an internal combustion engine of a motor vehicle to a feed pump. Said connector comprises an elbowed connecting sleeve (7) which can be rotationally fixed in various angular positions in a receiver (6). Said connecting sleeve (7) is positively fixed in the receiver (6) by a catch means (9). In this way, the forces acting on the flow pipe are kept at a distance from a seal pertaining to the connecting sleeve (7).

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.

Abstract: Stranded cable conductors, especially their connecting joints with electrical components, are damaged during use in aggressive surroundings, for example in fuels. Protective measures, such as shrinkable tubes or protective coatings, do not ensure adequate protection however. With the novel process, stranded cable conductors and their connecting joints with electrical components are to be protected against the attack of aggressive media. With the process according to the invention, stranded cable conductors are encapsulated in a fuel-resistant plastic, the encapsulation not covering the entire length of the stranded cable conductor but the region which is exposed to aggressive media. The process does not require any pretreatment of the stranded cable conductors.