Connection piece for a fuel pump

Abstract

A fuel pump in which a plug ( 7 ) used for mounting electrical contacts ( 6 ) is extrusion-coated with a plastic coat and is inserted into a receiving device ( 12 ) of a connection piece ( 4 ). The plug ( 7 ) comprises a circumferential sealing lip ( 17 ) which is molded on as a single piece and seals the plug ( 7 ) from the connection piece ( 4 ). The connection piece ( 4 ) thus requires a particularly low number of parts and can be produced in an inexpensive manner.

1 . A connection piece for a fuel pump having a receiving device in which a plug is arranged which has electrical contacts for connecting an electric motor of the fuel pump to a mains supply, the plug being extrusion-coated with plastic, characterized in that the plug ( 7 ) has an integrally formed, circumferential sealing lip ( 17 ).  
   
   
       2 . The connection piece as claimed in  claim 1 , characterized in that the sealing lip ( 17 ) is arranged on the plug ( 7 ) in the region of a bushing ( 14 ) of the electrical contacts ( 6 ).  
   
   
       3 . The connection piece as claimed in  claim 1  or  2 , characterized in that the sealing lip ( 17 ) has a region ( 18 ) which points in the direction of the electrical contacts ( 6 ).  
   
   
       4 . The connection piece as claimed in  claim 1  or  2 , characterized in that the sealing lip ( 17 ) can be elastically deformed.